49
KLK Fuses
FAST-ACTING 600 V A C
Fast-acting, high-interrupting capacity,
current-limiting type fuse. Especially suited
for control circuits, street lighting, H.I.D.
lighting, computers, and other applications
without high inrush currents.
Voltage Rating: 600 Volts AC
500 Volts DC
Interrupting Rating: UL Listed 100,000
amperes rms symmetr ical
(Capable of 200,000 amperes)
Ampere Ratings:
KLKD Fuses
FAST-ACTING 600 V A C/DC
Fast-acting, high-interrupting capacity,
current-limiting type fuse. Especially suited
for DC control circuits, street lighting, H.I.D.
lighting, computers, and other applications.
Voltage Rating: 600 Volts AC/DC
Interrupting Rating: AC:100,000 amperes
rms symmetr ical; DC: 10,000 amperes
Ampere Ratings:
FLM Fuses
TIME-DELAY 250 V A C
Use FLM 250 volt time-delay fuses to
protect control circuit transfor mers,
solenoids, and other circuits with high
inrush currents. Excellent for supplemental
protection of small motors. For motor
branch-circuit protection, See Class
CC fuses.
Voltage Rating: 250 Volts AC
Interrupting Rating: AC: 10,000 amperes
rms symmetr ical.
Ampere Ratings:
FLQ Fuses
TIME-DELAY 500 V A C
These 500 volt time-delay fuses provide
excellent supplemental protection of control
power transformers, solenoids, and circuits
with high inrush currents. UL and CSA 500
volt ratings permit use on 480 volt circuits.
FLQ fuses also provide supplemental
protection to small motors. For motor
branch-circuit protection, see Class
CC fuses.
Voltage Rating: 500 Volts AC
Interrupting Rating: 10,000 amperes
rms symmetr ical
Ampere Ratings:
Approvals: Standard 248-14
UL Listed 3/10-30A
(File No: E10480)
CSA Cer tified 3/10-30A
(File No: LR29862)
Versions available to meet
MIL-F-5160/60, QPL F60C:
Contact Factory.
Dimensions: 13/32" x 1-1/2"
Example part number (series & amperage): KLK 1-1/2
Approvals: Standard 248-14
UL Listed 3/10-30A
(File No: E10480)
CSA Cer tified 3/10-30A
(File No: LR29862)
Dimensions: 13/32" x 1-1/2"
Example par t number (series & amperage): KLKD 30
Approvals: Standard 248-14
UL Listed (File No: E10480)
CSA Cer tified
(File No: LR29862)
Dimensions: 13/32" x 1-1/2"
Example par t number (series & amperage): FLM 15
110 1410
18112512
210 2615
14212720
310 3825
12312930
34
110 1410
18112512
210 2615
14212720
310 3825
12312930
34
110 11837
15100 1143210 8
210 1410 3129
14112410
310 1610 41212
410 1810 515
1225
610 20
610 214625
810 21261430
12
810
110 810 3210 8
1813
129
15100 118410
316 11441212
210 112514
141610 5610 15
310 2620
410 21461425
12212730
610 3
RECOMMENDED FUSE BLOCKS
L60030M series. Refer to Fuse Block section of this catalog for additional information.
Midget Fuses
Supplementar y Overcurrent Protection
Approvals: Standard 248-14
UL Listed (File No: E10480)
CSA Cer tified
(File No: LR29862)
Dimensions: 13/32" x 1-1/2"
Example par t number (series & amperage): FLQ 1/2
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50
BLN Fuses
FAST-ACTING 250 V A C
Fiber tube, 250 volt BLN fuses provide low-
cost protection for military applications and
control circuits.
Voltage Rating: 250 Volts AC
Interrupting Rating: 10,000 amperes rms
symmetrical
Ampere Ratings:
Approvals: Standard 248-14
UL Listed (File No: E10480)
CSA Cer tified
(File No: LR29862)
Versions available to meet
MIL-F-15160/9, QPL F09A:
Contact Factory
Dimensions: 13/32" x 1-1/2"
Example par t number (series & amperage): BLN 30
BLF Fuses
FAST-ACTING 125/250 V A C
Laminated tube BLF fuses are the lowest
price midget fuse. They are suitable for
control circuit and instrument protection in
dry locations.
Voltage Ratings: 250 Volts AC: 1/2 – 15
amperes; 125 Volts AC: 20 – 30 amperes
Interrupting Rating: 10,000 amperes rms
symmetrical
Ampere Ratings:
Approvals: Standard 248-14
UL Listed (File No: E10480)
CSA Cer tified
(File No: LR29862)
Dimensions: 13/32" x 1-1/2"
Example par t number (series & amperage): BLF 5
BLS Fuses
FAST-ACTING 250/600 V A C
BLS fuses are 1-3/8" long in contrast to
other midget fuses which are 1-1/2". They
provide space-saving, low-cost, protection
to street lighting, metering, control and
electronic circuits.
Voltage Rating: 600 Volts AC: 2/10 – 5
amperes; 250 Volts AC: 6 – 10 amperes
Interrupting Rating: 10,000 amperes
rms symmetr ical
Ampere Ratings:
Approvals: Standard 248-14
UL Listed 1/2-5 Amps
(File No: E10480)
CSA Cer tified 1/2 – 5 Amps
(File No: LR29862)
Dimensions: 13/32" x 1-3/8"
Example par t number (series & amperage): BLS 10
Ampere Ratings:
FLA Fuses
TIME-DELAY 125 V A C
FLA fuses are 125 volt, pin-indicating time-
delay fuses for protection of control circuit
transfor mers, solenoids, and other circuits
with high inrush currents. Metal indicating pin
“pops-out” when fuse opens. Pin gives visual
indication of open fuse. Use FLA fuses in
conjunction with special fuseblocks to operate
mechanical signal switches or energize alarm
circuits. Fuses rated 12 amperes and above
have dual-tube construction.
Voltage Rating: 125 Volts AC
Interrupting Rating: 10,000 amperes rms
symmetrical
Approvals: Standard 248-14
UL Listed (File No: E10480)
CSA Cer tification Pending
Dimensions: 13/32" x 1-1/2"
* Note: Dual tube construction
Example par t number (series & amperage): FLA 15
151020
261225
381530
4
123715
14820
1125925
261030
21261412
210 126
410 11237
121610 48
341810 510
810
110 1182810 614
15100 11437
210 1410 3210 8
1411231210
310 1610 4 12 *
410 1810 41215 *
122 5 20 *
610 2145610 25 *
810 2126 30 *
1
RECOMMENDED FUSE BLOCKS
L60030M series. Refer to Fuse Block section of this catalog for additional information.
Midget Fuses
Supplementar y Overcurrent Protection
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Midget Fuses
Supplementar y Overcurrent Protection
SPECIFICATIONS
Voltage Rating: 600VAC
Interrupting Rating: 10,000 amperes
Ampere Range: 1 – 6 amperes
Approvals: Standard 248-14 UL Listed (File No: E10480)
Dimensions: 13/32" x 1-3/8"
AMPERE RATINGS
1 246
1-6/10 3 5
RECOMMENDED FUSE BLOCKS
L60030M Series. Refer to Fuse Block section of this catalog
for additional information.
ORDERING INFORMATION
Example catalog number: KLQ005
Example system number: 0KLQ005.T
CROSS REFERENCE
Littelfuse Buss Ferraz-Shawmut
KLQ KTQ
SPECIFICATIONS
Voltage Rating: 1000 V A C/VDC
Interrupting Rating: 44/100A: 10kA
11A: 20kA
Ampere Range: 44/100 and 11 amperes
Approvals: UL Recognized under the components program.
(File No: E10480)
CSA Cer tified (File No: LR29862)
Dimensions: 44/100A: 13/32" x 1-3/8"
11A: 13/32" x 1-1/2"
ORDERING INFORMATION
Example catalog number: FLU011
Example system number: 0FLU011.T
CROSS REFERENCE
Littelfuse Buss Ferraz-Shawmut
FLU DMM
KLQ Series Fuses
The Littelfuse KLQ series is designed to protect gaseous
vapor fixtures, HID ballasts, and other electronic and lighting
circuits.The KLQ is the same physical size as the Littelfuse
BLS, but has more time delay to handle transient and inrush
currents.
FLU Series Fuses
The Littelfuse FLU series is designed specifically for the
protection of multimeters.The 1000 VAC/VDC rating also
makes the FLU ideal for a var iety of other applications.
51
NEW
NEW
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52
1000
800
600
400
300
200
100
80
60
40
30
20
10
8
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
.01
2
3
4
6
8
10
20
30
40
60
80
100
200
300
400
600
800
1000
.1
.2
.3
.4
.6
.8
1
1/8A
2/10A
1/4A
3/10A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
6A
7A
8A
9A
10A
12A
15A
20A
25A
30A
TIME IN SECONDS
CURRENT IN AMPERES
1000
800
600
400
300
200
100
80
60
40
30
20
10
8
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
.01
2
3
4
6
8
10
20
30
40
60
80
100
200
300
400
600
800
1000
.1
.2
.3
.4
.6
.8
1
1/10A
15/100A
1/4A
1/2A
1A
1 1/2A
2A
8A
10A
15A
20A
25A
30A
TIME IN SECONDS
CURRENT IN AMPERES
1000
800
600
400
300
200
100
80
60
40
30
20
10
8
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
.01
2
3
4
6
8
10
20
30
40
60
80
100
200
300
400
600
800
1000
.1
.2
.3
.4
.6
.8
1
1/8A
2/10A
1/4A
3/10A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
6A
7A
8A
9A
10A
12A
15A
20A
25A
30A
TIME IN SECONDS
CURRENT IN AMPERES
1000
800
600
400
300
200
100
80
60
40
30
20
10
8
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
.01
20
30
40
60
80
100
200
300
400
600
800
1000
2000
3000
4000
6000
8000
10000
1
2
3
4
6
8
10 8A
9A
10A
12A
14A
15A
20A
25A
30A
TIME IN SECONDS
CURRENT IN AMPERES
Midget Fuses
Supplementar y Overcurrent Protection
KLK KLKD
FLM FLQ
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53
Electronic Fuses
3A G/3AB Type
312/318 Series
3AG FAST-ACTING FUSE
314/324 Series
3AB FAST-ACTING FUSE
313/315 Series
3AG SLO-BLO®FUSE
326/325 Series
3AB SLO-BLO®FUSE
Fast-acting protection of electronic equipment
and appliances. The “standard” fast-acting,
glass tube fuse.
Voltage Rating: 250V: 1/100 – 10A.
32V: 12 – 35A.
Ampere Ratings:
1100 0.175 121610 412
132 316 610 134515
116 210 342620
110 1412
14725
18310 114212830
15100 3811231035
Approvals: Standard 248-14, UL Listed 1/100-10
Amps and UL Listed 12 – 30 Amps per Standard
UL 275. CSA Certified through 30 Amps.
Dimensions: 1/4" x 1-1/4" (6.4 x 31.8mm)
For fuses with axial leads, request 318 series.
Order 312 series without leads.
Example par t number (series & amperage): 312.375
Similar to 312 series, but ceramic tube permits
additional ampere ratings: 250 volt ratings
through 20 amps, and 125 volts through 30 amps.
Voltage Rating: 250V: 1/8 – 20A.
125V: 25 – 30A.
Ampere Ratings:
1834361020
141471225
382581530
12
Approvals: Standard 248-14, UL Listed and CSA
Cer tified 1/8 – 15 Amps. UL Recognized under
the Components Program and CSA Recognized
under the Component Acceptance Program 20 –
30 Amps. Approved by MITI from 10 – 30 Amps.
Dimensions: 1/4" x 1-1/4" (6.4 x 31.8mm)
For fuses with axial leads, request 324 series.
Order 314 series without leads.
Example par t number (series & amperage): 324.375
313 and 315 series fuses have time-delay in
the overload range, which provides superior
protection for inductive loads such as motors,
transfor mers, and solenoids.
Voltage Rating: 250V: 1/100 – 8A. 32V: 10 – 30A.
Ampere Ratings:
1100 0.175 121142810 8
132 316 610 112310
4100 210 710 1610 3210 12
116 14341810 415
110 310 810 2520
183812
1461425
15100 410 1210 212730
Approvals: Standard 248-14, UL Listed and CSA
Cer tified 1/100-8 Amps. UL Recognized under
the Components Program and CSA Recognized
under the Component Acceptance Program 10 –
30 Amps. MITI approved 1 – 5 Amps.
Dimensions: 1/4" x 1-1/4" (6.4 x 31.8mm)
For fuses with axial leads, request 315 series.
Order 313 series without leads.
Example par t number (series & amperage): 313.500
The 326 series fuse has time-delay similar to the
313 series, but the ceramic body permits higher
voltage ratings for the 8 – 30 ampere sizes and
faster opening of short circuits.
Voltage Rating: 250V: 1/100 – 20A.
125V: 25 – 30A.
Ampere Ratings:
1100 316 610 112415
132 210 710 1610 520
116 143426
1425
110 310 810 212730
183812
810 8
15100 410 1210 310
0.175 121143210 12
Approvals: Standard 248-14, UL Listed 1/4 –
10 Amps. UL Recognized under the Components
Program 12-30 Amps. CSA Cer tified 1/4 –
30 Amps.
Dimensions: 1/4" x 1-1/4" (6.4 x 31.8mm)
For fuses with axial leads, request 325 series.
Order 326 series without leads.
Example par t number (series & amperage): 326012
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54
Electronic Fuses
Indicating Types
481 Series
FAST-ACTING INDICATING/ALARM FUSE
229/230 Series
2AG SLO-BLO®INDICATING FUSE
334 Series
3AB FAST-ACTING PIN INDICATING
313 Series
3AG SLO-BLO®INDICATING FUSE
2AG indicating fuses instantly identify
them-
selves
upon opening by showing a discoloration
of their glass bodies. Guesswork and time-
consuming circuit testing is eliminated.This
unique design offers the same quality perfor-
mance characteristics as the standard 2AG
fuse design.
Voltage Rating: 250V: 14– 312A; 125V: 4 – 7A
Ampere Ratings:
14610 1235
.350 341142143126
38810 11221247
12
Approvals: Standard 248-14, UL Listed and
CSA Cer tified 1/4 – 3-1/2 Amps. UL Recognized
under the Components Program and CSA
Recognized under the Component Acceptance
Program 4 – 7 Amps.
Dimensions: .177" x .57" (4.5 x 14.5mm)
For fuses with axial leads, request 230___S
series. Order 229___S ser ies without leads.
Example par t number (series & amperage): 22902.5S
3AG indicating fuses instantly identify
them-
selves
upon opening by showing a discoloration
of their glass bodies. Guesswork and time-
consuming circuit testing is eliminated.This
unique design offers the same quality perfor-
mance characteristics as the standard 3AG
fuse design.
Voltage Rating: 250V:12– 8A. 32V: 10A.
Ampere Ratings:
1211235710
1246
148
Approvals: Standard 248-14, UL Listed and
CSA Cer tified 1/2 – 8 Amps.The 10 Amp is UL
Recognized under the Components Program
and CSA Recognized under the Component
Acceptance Program.
Dimensions: 1/4" x 1-1/4": (6.4 x 31.8mm)
Example par t number (series plus amperage, followed
by “ID”): 313007 ID
3AB Pin Indicating fuses provide visual
indication
and may be used to activate an alarm circuit.
Indicating Pin extends a minimum of 3/16" from
the end of the fuse when the fuse is blown.
Voltage Rating: 125V: 34–6A.
Ampere Ratings:
3411235
1246
Approvals: Standard 248-14, UL Listed: 3/4 –
5 Amps.
Dimensions: 1/4" x 1-1/4"
Order 334 series for silver indicating pin.
Example par t number (series & amperage): 334004
For telecommunications equipment and similar
applications. Color-coded indicator flags indicate
ampere rating. Body is constr ucted of black
polyphenylene sulfide with UL 94V0 flammability
rating, contacts are of bright alloy-plated
beryllium copper.
Voltage Rating: 125V AC, DC
Ampere Ratings:
18100 65100 1133512
143411231271215
1212410
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
Example par t number (series & amperage): 481005
Recommended Fuse Blocks:
Par t Number 482001.
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55
Electronic Fuses
5 x 20mm IEC Type
215 Series (Type T)
5 X 20MM SLO-BLO®FUSE
217 Series (Type F)
5 X 20MM FAST-ACTING FUSE
216 Series (Type F)
5 X 20MM FAST-ACTING FUSE
218 Series (Type T)
5 X 20MM SLO-BLO®FUSE
Time-delay protection of electronic equipment
and appliances when fuses to International
Standards are required. Replacement fuses
for foreign equipment.
Voltage Rating: 250V AC
Ampere Ratings:
.200 .400 .800 1.6 3.16 6.3
.250 .500 1248*
.315 .630 1.25 2.5 5 10*
*Available but not included in International
Standards.
Interrupting Capacity: 1500A
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
SEMKO, VDE, and BSI approved 1 – 6.3 Amps.
MITI approved 1 – 10 Amps.
Design Standards: Meets IEC 60127-2, Sheet 5
Specification for Time Lag fuses.
Dimensions: 5mm x 20mm (.2 x .79 in.)
Example par t number (series & amperage): 215.315
Fast-acting protection of electronic equipment
and appliances when fuses to International
Standards are required. Replacement fuse
for foreign equipment.
Voltage Rating: 250V AC
Ampere Ratings:
.050 .125 .315 .800 2 5
.063 .160 .400 1 2.5 6.3
.080 .200 .500 1.25 3.15 8*
.100 .250 .630 1.6 4 10*
Interrupting Capacity: 1500A
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
SEMKO and VDE approved through 6.3 Amps.
BSI approved 1 – 6.3 Amps.
Design Standards: Meets IEC 60127-2, Sheet 1
Specification for Fast-Acting Fuses.
Dimensions: 5mm x 20mm (.2 x .79 in.)
Example par t number (series & amperage): 216.200
Fast-acting protection of electronic equipment
and appliances when fuses to International
Standards are required. Replacement fuse
for foreign equipment.
Voltage Rating: 250V AC
Ampere Ratings:
.032 .100 .315 .800 2 5
.040 .125 .400 1 2.5 6.3
.050 .160 .500 1.25 3.15 8*
.063 .200 .630 1.6 4 10*
.080 .250 15*
*Available but not included in International
Standards.
Interrupting Capacity: 35A or 10x rated
current, whichever is greater.
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
SEMKO and VDE approved through 6.3 Amps.
BSI approved 0.4 – 6.3 Amps.
Design Standards: Meets IEC 60127-2, Sheet 2
Specification for Fast-Acting Fuses.
Dimensions: 5mm x 20mm (.2 x .79 in.)
Example par t number (series & amperage): 217.050
Time-delay protection of electronic equipment
and appliances when fuses to International
Standards are required. Replacement fuses
for foreign equipment.
Voltage Rating: 250V AC
Ampere Ratings:
.032 .100 .315 .800 2 5
.040 .125 .400 1 2.5 6.3
.050 .160 .500 1.25 3.15 8*
.063 .200 .630 1.6 4 10*
.080 .250 15*
*Available but not included in International
Standards.
Interrupting Capacity: 35A or 10X rated
current, whichever is greater.
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
SEMKO and VDE approved through 6.3 Amps.
BSI approved 0.8 – 6.3 Amps.
Design Standards: Meets IEC 60127-2, Sheet 3
Specification for Time Lag Fuses.
Dimensions: 5mm x 20mm (.2 x .79 in.)
Example par t number (series & amperage): 218.630
*Available but not included in International
Standards.
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56
235/236 Series
5 X 20MM FAST-ACTING FUSE
239/238 Series
5 X 20MM SLO-BLO®FUSE
225/224 Series
2AG FAST-ACTING FUSE
229/230 Series
2AG SLO-BLO®FUSE
Electronic Fuses
5 x 20mm and 2AG Type
5 x 20mm fuses designed to UL and CSA
standards. Fast-Acting protection of electronic
equipment appliances.
Voltage Rating: 250V: 110 – 3A. 125V: 4 – 6A.
Ampere Ratings:
110 310 610 124
18410 710 1142125
210 12810 1610 36
14
Approvals: Standard 248-14, UL Listed and CSA
Cer tified. MITI approved 1 – 5 Amps.
Dimensions: 5mm x 20mm (.2 x .79 in.)
For fuses with axial leads, request 236 series.
Order 235 series without leads.
Example par t number (series & amperage): 235.600
5 x 20mm fuses designed to UL and CSA
standards. For protection of electronic equip-
ment and appliances.
Voltage Rating: 250V: 210 – 3A. 125V: 4A.
Ampere Ratings:
210 410 710 124
1412341142125
310 610 810 1610 3
Approvals: Standard 248–14, UL Listed and CSA
Cer tified. MITI approved 1 – 5 Amps.
Dimensions: 5mm x 20mm (.2 x .79 in.)
For fuses with axial leads, request 238 series.
Order 239 series without leads.
Example par t number (series & amperage): 239.400
Fast-acting performance of the 312, 3AG fuses in
less than one-third the space. For protection of
electronic equipment and appliances.
Voltage Rating: 250V:110 – 312A. 125V: 4 – 10A
Ampere Ratings:
110 3812
1247
1812112358
143423
12610
Approvals: Standard 248–14, UL Listed and CSA
Cer tified. 224 series approved by MITI 1 – 5 Amps.
Dimensions: 2AG Fuse .177" x .57" (4.5 x
14.5mm)
For fuses with axial leads, request series number
224. Order 225 ser ies without leads.
Example par t number (series & amperage): 224.500
229 series 2AG fuses have time-delay of 313
series 3AG fuses in less than one-third the
space. They provide superior protection for
inductive loads such as motors, transformers,
and solenoids. Use whenever time-delay fuses
are indicated.
Voltage Rating: 250V:14– 312A. 125V: 4 – 7A.
Ampere Ratings:
14610 11221246
38342357
1212
14312
Approvals: Standard 248-14, UL Listed and
CSA Cer tified 1/4 – 3-1/2 Amps. UL Recognized
under the Components Program and CSA
Recognized under the Component Acceptance
Program 4 – 7 Amps.
Example par t number (series & amperage): 229.375
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57
Electronic Fuses
Subminiature Type
272/278 Series
FAST-ACTING MICROFUSE
273/279 Series
FAST-ACTING MICROFUSE
251/252 Series
FAST-ACTING PICO®II FUSE
473 Series
SLO-BLO®PICO®II FUSE
Fast-acting Microfuses for protection of printed
circuit boards and similar equipment.
Voltage Rating: 125V AC
Ampere Ratings:
1500 132 18410 342
1200 120 210 12810 3
1100 116 14610 14
164 110 310 710 1125
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
For data on 262 and 268 series High Reliability
(Hi-Rel) microfuses, request Electronic Catalog.
Note: 278 series has 1" leads
Example par t number (series & amperage): 27201.5
Similar to 272 and 278 series, except has trans-
parent cap for visual indication of fuse status.
Voltage Rating: 125V AC
Ampere Ratings:
1500 132 18410 342
1200 120 210 12810 3
1100 116 14610 14
164 110 310 710 1125
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
Note: 279 series has 1" leads
Example par t number (series & amperage): 273002
Subminiature fuse for soldered mounting on
printed circuit boards. Available on tape and reel
for automatic insertion.
Voltage Rating: 125V: 116 – 10A. 32V: 12 – 15A.
Ampere Ratings:
116 3812
12410
18121123512
143423
12715
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
Subminiature time-delay fuse for soldered
mounting on printed circuit boards. Available on
tape and reel for automatic insertion. Request
bulletin PB-1027 for fur ther information.
Voltage Rating: 125V AC
Ampere Ratings:
38122
123125
12112214347
34
Approvals: UL Recognized under the
Components Program and CSA Recognized
under the Component Acceptance Program.
MITI approved 1 – 5 Amp.
Example par t number (series & amperage): 473005.
Example par t number (series & amperage): 251.125.
Order 252 series for radial leads.To order
PICO II fuses with ampere ratings color-coded,
order 255 series for axial leads and 256 for
radial leads.
For data on 265 and 266 series High Reliability
(Hi-Rel) Picofuses, request Electronic Catalog.
For information on PICO II 250V fast-acting
fuses, contact factor y.
.235" .29" .17"
.10"
.25" .35" .17"
.10"
1.47" 1.47".28"
.095"
DIA.
LF 1A
EPOXY COATING
1.47" 1.47".28"
.095"
DIA.
LF 1A
CUBIERTA EPÓXICA
EPOXY COATING
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58
Automotive Fuses
SFE and Blade Type
307/SFE Series
FAST-ACTING FUSE
ATO®/257 Series
FAST-ACTING FUSE
MAX/299 Series
MAXITM SLO-BLO®FUSE
MIN/297 Series
MINI®FAST-ACTING FUSE
Low-voltage fuse for automotive and electronic
applications.
Voltage Rating: 32V AC/DC
Ampere Ratings/Dimensions:
Ampere
Rating Length Diameter
458"14"
634"14"
71278"14"
978"14"
14 1116"14"
20 114"14"
30 1716"14"
Approvals: UL Listed under UL Standard #275.
Society of Automotive Engineers (SAE) J554.
Example par t number (series & amperage): 307006
The 257 series ATO fuse is a low-voltage blade
type fuse for automotive and electronic applica-
tions. Designed, originated and patented by
Littelfuse, it has become the standard for OEM
circuit protection on foreign and domestic autos
and trucks.They are color-coded and readily
identifiable and may be specified for a variety
of low voltage applications.
Voltage Rating: 32V AC/DC
Approvals: UL Listed. CSA Certified 3 30 A.
Society of Automotive Engineers (SAE) J1284.
Example par t number (series & amperage): ATO015
The MINI®fuse is smaller than its predecessor,
the ATO®fuse, which permits using more fuses
in the same amount of space. More fuses in the
same space satisfies the requirement that more
circuits be individually fused in newer automo-
biles. Patented by Littelfuse.
Voltage Rating: 32V AC/DC
Approvals: UL Listed. Society of Automotive
Engineers (SAE) J2077.
Example par t number (series & amperage): MIN025
The patented MAXITM Fuse is available in a
higher range of amperage ratings (20 80
amperes) than the ATO®or MINI®fuses, and is
physically larger in size. It is color-coded for easy
identification. A typical MAXI Fuse application in
todays more sophisticated automobile circuits is
protection of the wiring har ness by replacing the
fusible wire or fusible link, which is often a plain
piece of small wire.
Voltage Rating: 32V AC/DC
Approvals: UL Listed. Society of Automotive
Engineers (SAE) J1888.
Example par t number (series & amperage): MAX070
Catalog No. Amp. Rating Volt. Rating Color Code
ATO 001 1 32 Black
ATO 002 2 32 Grey
ATO 003 3 32 Violet
ATO 004 4 32 Pink
ATO 005 5 32 Tan
ATO 07.5 7 1/2 32 Brown
ATO 010 10 32 Red
ATO 015 15 32 Blue
ATO 020 20 32 Yellow
ATO 025 25 32 Natural
ATO 030 30 32 Green
ATO 040 40 32 Orange
Catalog No. Amp. Rating Volt. Rating Color Code
MIN 002 2 32 Grey
MIN 003 3 32 Violet
MIN 004 4 32 Pink
MIN 005 5 32 Tan
MIN 07.5 7 1/2 32 Brown
MIN 010 10 32 Red
MIN 015 15 32 Blue
MIN 020 20 32 Yellow
MIN 025 25 32 Natural
MIN 030 30 32 Green
Catalog No. Amp. Rating Volt. Rating Color Code
MAX 020 20 32 Yellow
MAX 030 30 32 Green
MAX 040 40 32 Orange
MAX 050 50 32 Red
MAX 060 60 32 Blue
MAX 070 70 32 Tan
MAX 080 80 32 Natural
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59
In addition to POWR-GARD Products, Littelfuse
manufactures a wide range of state-of-the-ar t
electronic and automotive products. For more
detailed infor mation on electronic and automo-
tive products please refer to catalog EC101
and AA101.
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