PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
TS Series
Description
Littelfuse PolySwitch products for telecommunication and
networking devices help to meet the growing demand
for resettable overcurrent protection. They also provide
protection against damage caused by power cross and
induced power surges as defined by ITU, Telcordia
GR1089, and IEC 62368-1. Littelfuse offers chip, surface-
mount, and radial-leaded configurations.
Applications
Networking Machines and Systems:
Modem
Phone set
Fax machine
Phone wall outlet
Alarm system
PBX system
MDF module
T1/E1 equipment
Analog and digital line card
xDSL modem and splitter
Powered Ethernet system
VoIP (Voice over Internet
Protocol) equipment
LAN, WAN equipment
Customer premise equipment
Access network hardware
Features
Resettable overcurrent protection
Fast time-to-trip
Resistance sorted and matched devices available
Low parasitic capacitance/flat impedance with frequency
Recognized to UL 1434, approved to CSA TIL No. CA-3A
and EN 60730-1.
Agency Approvals
AGENCY AGENCY FILE/CERTIFICATE NUMBER
E74889*
78166*
72161787*
Electrical Characteristics
Part
Number IHIT
VMAX IMAX
PD Typ
Max Time-to-trip
RMIN RMAX R1MAX
Agency ApprovalsOperating Interrupt Interrupt
(A) (A) (VDC) (VRMS) (A) (W) (A) (s) (Ω) (Ω) (Ω)
TS250/TSL250/TSM250/TSV250 – Surface-mount — 250VAC
TSL250-080F 0.080 0.240 80 250 3.0 1. 2 1. 0 0.8 5.0 11. 0 20.0** x x x
TSL250-130F 0.130 0.260 60 250 3.0 1. 5 1. 0 2.0 4.0 8.0 12.0**
TS250-130F 0.130 0.260 60 250 3.0 1. 1 1. 0 0.9 6.5 12.0 20.0** xxx
60 600 1. 0
TS250-130F-RA 0.130 0.260 60 250 3.0 1. 1 1. 0 1. 4 6.5 9.0 15.0** x x
60 600 1. 0
TS250-130F-RB 0.130 0.260 60 250 3.0 1. 1 1. 0 0.7 9.0 12.0 20.0** x x
60 600 1. 0
TS250-130F-RC 0.130 0.260 60 250 3.0 1. 1 1. 0 1. 1 7. 0 10.0 17.0** x x
60 600 1. 0
RoHS
* See Electrical Characteristic Table for approved part numbers.
Additional Information
Datasheet Resources Samples
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
Electrical Characteristics
Part
Number IHIT
VMAX IMAX
PD Typ
Max Time-to-trip
RMIN RMAX R1MAX
Agency ApprovalsOperating Interrupt Interrupt
(A) (A) (VDC) (VRMS) (A) (W) (A) (s) (Ω) (Ω) (Ω)
TS250/TSL250/TSM250/TSV250 – Surface-mount — 250VAC
TSM250-130F 0.130 0.260 60 250 3.0 1. 5 1. 0 2.4 4.0 9.0 15.0 x
TSM250-130F-RA 0.130 0.260 60 250 3.0 1. 5 1. 0 2.4 4.0 22.0 30.0
TSV250-130F 0.130 0.260 60 250 3.0 1. 5 1. 0 2.0 4.0 7. 0 12.0** x x x
TSV250-184F 0.184 0.690 100 250 10.0 0.9 3.0 0.5 1. 2 3.0 4.0** x
TS600 – Surface-mount — 600VAC (Single Channel)
TS600-170F 0.170 0.400 60 600 3.0 2.5 1. 0 10.0 4.0 9.0 18.0 x x
TS600-200F-RA-B-0.5
0.200 0.400 60 600 3.0 2.5 1. 0 12.0 4.0 7. 5 13.5 x x
TS600-400F 0.400 1.000 60 600 3.0 2.0 3.0 5.0 0.5 1. 1 2.0 x x
TSM600 – Surface-mount — 600VAC (Dual Channel)
TSM600-250F 0.250 0.860 250 600 3.0 2.0 3.0 0.8 1. 0 3.5 7. 0 x x
TSM600-250F-RA 0.250 0.860 250 600 3.0 2.0 3.0 1. 0 1. 0 3.0 5.0 x x
TSM600-400F 0.400 1.000 250 600 3.0 2.0 3.0 5.0 0.5 1. 1 2.0 x
Notes:
IH : Hold current: maximum current device will pass without interruption in 20°C still air.
IT : Trip current: minimum current that will switch the device from low resistance to high resistance in 20°C still air.
VMAX Operating
: Maximum continuous voltage device can withstand without damage at rated current. This voltage is used for component Recognition under UL1434.
VMAX Interrupt
:
Maximum voltage that can be safely placed across a device in its tripped state.
IMAX Interrupt
: Maximum fault current device can withstand without damage at rated operating voltage. This current is used for component Recognition under UL1434. Devices may trip
safely under higher level power cross conditions to assist equipment in meeting the appropriate ITU, UL60950 or GR1089 industry requirements.
PD : Power dissipated from device when in the tripped state in 20°C still air.
RMIN : Minimum resistance of device as supplied at 20°C unless otherwise specified.
RMAX : Maximum resistance of device as supplied at 20°C unless otherwise specified.
R1MAX : Maximum resistance measured one hour post-trip or post-reflow at 20°C.
** Applies to all products which share the same prefix.
Typical Time-to-Trip Curves at 25°C
TS250
A = TSV250-184F
B = TSV250-130F/TSL250-130F/
TSM250-130F
C = TS250-130F
D = TSL250-080F
TS600/TSM600
A = TS600-400/TSM600-400F
B = TSM600-250F/TS600-170F/200F
Time–to–Trip (s)
Fault Current (A)
100
10
1
0.1
0.01
0.0 0.5 1. 01.5 2.0 2.5 3.0
C
B
A
D
A
B
C
D
Time–to–Trip (s)
1000
100
10
1
0.1
0.01 012345
67
B
A
A
B
Fault Current (A)
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
% of Rated Hold and Trip Current
Device’s Ambient Temperature (˚C)
200
150
100
50
0-40 -20 020406080
TSx250/TS600/TSM600 – Temperature Rerating Curve
Temperature Rerating
Maximum Ambient Temperature
Part Number** -40°C -20°C 0°C 20°C 40°C 50°C 60°C 70°C 85°C
Hold Current (A)
TS250/TSL250/TSM250/TSV250 – Surface-mount*— 250VAC
TSL250-080F 0.124 0.110 0.095 0.080 0.066 0.059 0.051 0.044 0.033
TSL250-130F 0.208 0.182 0.156 0.130 0.104 0.091 0.078 0.065 0.045
TS250-130F 0.208 0.182 0.156 0.130 0.104 0.091 0.078 0.065 0.045
TSM250-130F 0.208 0.182 0.156 0.130 0.104 0.091 0.078 0.065 0.045
TSM250-130F-RA 0.208 0.182 0.156 0.130 0.104 0.091 0.078 0.065 0.045
TSV250-130F 0.208 0.182 0.156 0.130 0.104 0.091 0.078 0.065 0.045
TSV250-184F 0.286 0.252 0.218 0.184 0.150 0.134 0.118 0.102 0.075
TS600 – Surface-mount— 600VAC (Single Channel)
TS600-170F 0.264 0.230 0.200 0.170 0.140 0.125 0.109 0.094 0.070
TS600-200F 0.310 0.275 0.238 0.200 0.165 0.147 0.128 0.110 0.083
TS600-400F 0.640 0.560 0.480 0.400 0.320 0.270 0.230 0.190 0.130
TSM600 – Surface-mount— 600VAC (Dual Channel)
TSM600-250F 0.400 0.350 0.300 0.250 0.198 0.170 0.140 0.117 0.083
TSM600-400F 0.640 0.560 0.480 0.400 0.320 0.270 0.230 0.190 0.130
* 250VAC interrupt products may help equipment pass ITU K.20, K.21 and K.45 recommendations and Telcordia GR-1089 Port Type 2 and 4 requirements.
† 600VAC interrupt products may help equipment pass UL60950, TIA-968-A and GR1089 Port Type 1, 3 and 5 requirements.
** Applies to all products which share the same prefix.
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
TS250/TSV250/TSM250/TSL250 – Physical Specifications
Terminal Material Tin-plated Brass, Nickel Under-plating (TS250/TSV250/TSL250)
Tin-plated Copper (TSM250)
Soldering Characteristics IEC 60068-2-58
Note: Devices are not intended to be placed through a reflow process.
TS250/TSV250/TSM250/TSL250 – Environmental Specifications
Test Conditions
Passive Aging 60°C, 1000 hrs
85°C, 1000 hrs
Humidity Aging 85°C, 85% R.H., 500 hrs
Thermal Shock 125°C, -55°C (10 Times)
Solvent Resistance MIL-STD-202, Method 215F
Moisture Resistance Level Level 1, J-STD-020
Storage Conditions 40°C max, 70% RH max; devices should remain in original sealed bags prior to use.
Devices may not meet specified values if these storage conditions are exceeded.
TS600 – Physical Specifications
Terminal Material Tin-plated Brass
Insulating Material Nylon Resin (UL94V-0), 1000V Dielectric Rating
Soldering Characteristics ANSI/J-STD-002, Category 3
Solder Heat Withstand IEC 60068-2-58, Test Tb, Section 8
TS600 – Environmental Specifications
Test Conditions
Passive Aging 60°C, 1000 hrs
85°C, 1000 hrs
Humidity Aging 85°C, 85% R.H., 1000 hrs
Thermal Shock 125°C, -55°C (10 Times)
Solvent Resistance MIL-STD-202, Method 215F
Moisture Resistance Level Level 1, J-STD-020
Storage Conditions 40°C max, 70% RH max; devices should remain in original sealed bags prior to use.
Devices may not meet specified values if these storage conditions are exceeded.
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
TSM600 – Physical Specifications
Terminal Material Tin-plated Brass
Insulating Material Nylon Resin (UL94V-0), 1000V Dielectric Rating
Soldering Characteristics IEC 60068-2-58, Method 7
Solder Heat Withstand IEC 60068-2-58, Test Tb, Section 5 Method 1a
TSM600 – Environmental Specifications
Test Conditions
Passive Aging 60°C, 1000 hrs
85°C, 1000 hrs
Humidity Aging 85°C, 85% R.H., 1000 hrs
Thermal Shock 125°C, -55°C (10 Times)
Solvent Resistance MIL-STD-202, Method 215J
Moisture Resistance Level Level 2A, J-STD-020
Storage Conditions 40°C max, 70% RH max; devices should remain in original sealed bags prior to use.
Devices may not meet specified values if these storage conditions are exceeded.
Solder Reflow Recommendations
Solder Reflow
Recommended reflow method: IR, vapor phase oven, hot air oven.
Surface-mount devices are not intended to be wave soldered to
the bottom side of the board.
Recommended maximum paste thickness of 0.25mm (0.010in).
Devices can be cleaned using standard industry methods and solvents.
Rework
If a device is removed from the board, it should be discarded
and replaced with a new device.
Critical Zone
TL to Tp
Ramp Up
t 25˚C to Peak
Reflow Profile Time
Ramp Down
ts
Preheat
TsMAX
TL
Tp
tp
25
TsMIN
tL
Temperature
Profile Feature Pb-Free Assembly
Average ramp up rate (TsMAX to Tp) 3°C/s max
Preheat
Temperature min (TsMIN) 150°C
Temperature max (TsMAX) 200°C
Time (tsMIN to tsMAX) 60-180 s
Time maintained above:
Temperature (TL) 217°C
Time (tL) 60-150 s
Peak/Classification temperature (Tp) 260°C
Time within 5°C of actual peak temperature
Time (tp) 20-40 s
Ramp down rate 6°C/s max
Time 25°C to peak temperature 8min max
Note: All temperatures refer to topside of the package, measured on the package body
surface.
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
Dimensions and Weights
Part Number
Dimensions in Millimeters (Inches)
Figure
Device Mass (g)
(Only for Reference)
A B C D E F
Min Max Min Max Min Max Min Max Min Max Min Max
TS250/TSL250/TSM250/TSV250 – Surface-mount*— 250VAC
TSL250-080F 6.7 7.9 2.7 3.7 4.8 5.3 0.2 0.4 2.5 3.1 3 2.80
(0.27) (0.31) (0.11) (0.15) (0.19) (0.21) (0.01) (0.02) (0.10) (0.12)
TSL250-130F 6.7 7.9 2.7 3.7 4.8 5.3 0.2 0.4 2.5 3.1 3 2.80
(0.27) (0.31) (0.11) (0.15) (0.19) (0.21) (0.01) (0.02) (0.10) (0.12)
TS250-130F 8.5 9.4 3.4 7.4 0.3
3.8
1 3.60
(0.34) (0.37) (0.14) (0.29) (0.01) (0.15)
TSM250-130F 8.2 8.9 9.0 7.8 8.6 3.9 0.7 5 0.64
(0.323) (0.35) (0.354) (0.307) (0.339) (0.154) (0.026)
TSV250-130F 6.10 6.90 3.20 0.56 1.90 1.60 2.30 22.80
(0.24) (0.27) (0.13) (0.02) (0.08) (0.07) (0.09)
TSV250-184F 6.10 6.90 3.20 0.56 1.90 1.60 2.30 22.80
(0.24) (0.27) (0.13) (0.02) (0.08) (0.07) (0.09)
TS600 – Surface-mount— 600VAC (Single Channel)
TS600-170F 18.3 19.4 11.6 12.3 7.2 8.3 1.7 2.4 9.9 10.4 1.5 2.3 423.6
(0.72) (0.77) (0.46) (0.49) (0.29) (0.33) (0.07) (0.10) (0.39) (0.41) (0.06) (0.09)
TS600-200F 18.3 19.4 11.6 12.3 7.2 8.3 1.7 2.4 9.9 10.4 1.5 2.3 423.6
(0.72) (0.77) (0.46) (0.49) (0.29) (0.33) (0.07) (0.10) (0.39) (0.41) (0.06) (0.09)
TS600-400F 18.3 19.4 11.6 12.3 7.2 8.3 1.7 2.4 9.9 10.4 1.5 2.3 419.8
(0.72) (0.77) (0.46) (0.49) (0.29) (0.33) (0.07) (0.10) (0.39) (0.41) (0.06) (0.09)
Figure 2 Figure 3Figure 1
Figure 4 Figure 5
Dimension Figures
CB
B
B
C
C
B
B
B
C
E
E
E
G
E
A
D
D
F
D
A
A
D D
D
AC
D
D
E
F
A
A C
E
F
E
CB
B
B
C
C
B
B
B
C
E
E
E
G
E
A
D
D
F
D
A
A
D D
D
AC
D
D
E
F
A
A C
E
F
E
CB
B
B
C
C
B
B
B
C
E
E
E
G
E
A
D
D
F
D
A
A
D D
D
AC
D
D
E
F
A
A C
E
F
E
CB
B
B
C
C
B
B
B
C
E
E
E
G
E
A
D
D
F
D
A
A
D D
D
AC
D
D
E
F
A
A C
E
F
E
CB
B
B
C
C
B
B
B
C
E
E
E
G
E
A
D
D
F
D
A
A
D D
D
AC
D
D
E
F
A
A C
E
F
E
† 600VAC interrupt products may help equipment pass UL60950, TIA-968-A and GR1089 Port Type 1, 3 and 5 requirements.
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
Packaging and Marking Information
Part
Number
Bag
Quantity
Tape and Reel
Quantity
Standard Package
Quantity
Part
Marking
Agency
Approvals
TS250/TSL250/TSM250/TSV250 – Surface-mount — 250VAC
TSL250-080F-2 1,500 7,500 T08 UL, CSA,TÜV
TSL250-130F-2 1,500 7,500 T13
TS250-130F-2 1,500 7,500 T13 UL, CSA, TÜV
TSM250-130F-2 600 3,000 T13M UL
TSM250-130F-RA-2 600 3,000 T13M UL
TSV250-130F 2500 10,000 T13V UL, CSA, TÜV
TSV250-130F-2 1,200 6,000 T13V UL, CSA, TÜV
TSV250-184F 2500 10,000 T18V UL
TS600 – Surface-mount — 600VAC (Single Channel)
TS600-170F-2 300 900 T20 UL, CSA
TS600-200F-RA-2 300 900 T20 UL, CSA
TS600-400F-2 300 900 T40 UL, CSA
TSM600 – Surface-mount — 600VAC (Dual Channel)
TSM600-250F-2 200 600 TSM600 UL, CSA
TSM600-250F-RA-2 200 600 TSM600 UL, CSA
TSM600-400F-2 200 600 TSM600-4 UL
Dimensions and Weights
Part Number
Dimensions in Millimeters (Inches)
Figure
Device Mass (g)
(Only for Reference)
A B C D E F G
Min Max Min Max Min Max Min Max Min Max Min Max Min Max
TSM600 – Surface-mount— 600VAC (Dual Channel)
TSM600-250F 17.0 17.60 11.20 11.70 10.40 11.20 4.80 5.20 2.50 2.80 0.60 1.0 2.2 3.1 631.2
(0.67) (0.69) (0.44) (0.46) (0.41) (0.44) (0.19) (0.20) (0.10) (0.11) (0.02) (0.04) (0.09) (0.12)
TSM600-400F 17.0 17.60 11.20 11.70 10.40 11.20 4.80 5.20 2.50 2.80 0.60 1.0 2.2 3.1 631.2
(0.67) (0.69) (0.44) (0.46) (0.41) (0.44) (0.19) (0.20) (0.10) (0.11) (0.02) (0.04) (0.09) (0.12)
CB
B
B
C
C
B
B
B
C
E
E
E
G
E
A
D
D
F
D
A
A
D D
D
AC
D
D
E
F
A
A C
E
F
E
Figure 6
† 600VAC interrupt products may help equipment pass UL60950, TIA-968-A and GR1089 Port Type 1, 3 and 5 requirements.
Dimension Figures
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
Recommended Pad Layouts in millimeters (inches) Nominal
Device A B C D E F G Figure
TS250 (All) 4.6 1.80 6.10 1
(0.180) (0.070) (0.240)
TSM250 (All) 3.20 2.00 6.70 8.20 2.60 3.90 4
(0.126) (0.079) (0.264) (0.323) (0.102) (0.154)
TSV250 (All) 2.29 2.41 6.35 3.43 2
(0.090) (0.095) (0.250) (0.135)
TSL250 (All) 3.6 1.80 5.50 1
(0.140) (0.070) (0.220)
TS600 (All) 10.42 3.30 3.35 1
(0.410) (0.130) (0.132)
TSM600 (All) 5.2 17.80 5.54 6.75 2.08 3.12 8.39 3
(0.205) (0.701) (0.218) (0.266) (0.082) (0.123) (0.331)
Figure 2
Figure 3 Figure 4
Figure 1
A
B
A
A
A
A
B B
B
C
C D
G
E
F
D
BCB
B
E
F
C
A
D
A
A
A
A
B B
B
C
C D
G
E
F
D
BCB
B
E
F
C
A
D
A
A
A
A
B B
B
C
C D
G
E
F
D
BCB
B
E
F
C
A
D
TSx -200 F -RA -B-0.5 -2
Packaging
2 = Tape and Reel
(Blank) = Bulk
B-x.x = Resistance Matched in Bins of x.xΩ (Optional)
Rx = Resistance Range (Optional)
aRoHS Compliant, ELV Compliant
Hold Current (mA)
Product Series
(TS250, TSM250, TSV250, TSL250, TS600, TSM600)
Part Ordering Number System
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
TS250/TSV250/TSM250/TSL250 – Tape and Reel Specifications
TS devices are packaged per EIA 481 and EIA 481-2 standards.
See Figures 1 and 2 for details.
TS250 TSM250 TSV250 TSL250
Description EIA Mark
Dimension
(mm)
Tolerance
(mm)
Dimension
(mm)
Tolerance
(mm)
Dimension
(mm)
Tolerance
(mm)
Dimension
(mm)
Tolerance
(mm)
Carrier Tape Width W16 ±0.30 24.0 ±0.50 16.0 ±0.30 16 ±0.30
Sprocket Hole Pitch
P04.0 ±0.10 4.0 ±0.10 4.0 ±0.10 4.0 ±0.10
P112.0 ±0.10 16.0 ±0.10 8.0 ±0.10 8.0 ±0.10
P22.0 ±0.10 2.0 ±0.10 2.0 ±0.10 2.0 ±0.10
A06.9 ±0.23 7.05 ±0.20 5.5 ±0.10 5.5 ±0.10
B09.6 ±0.15 8.85 ±0.20 6.2 ±0.10 7. 9 ±0.10
B1 max 12.1 12.45 8.0 9.2
Sprocket Hole
Diameter
D01. 5 -0/+0.1 1. 5 -0/+1.0 1.55 ±0.05 1.55 ±0.05
F7. 5 ±0.10 11. 5 ±0.10 7. 5 ±0.10 7. 5 ±0.10
E11.75 ±0.10 1.75 ±0.10 1.75 ±0.10 1.75 ±0.10
E2 min 14.25 22.25
Tape Thickness T max 0.4 0.5 ±0.50 0.45 0.35
Tape Thickness with
Splice Cover Tape
Thickness
T1 max 0.1 0.1 0.1 0.1
K03.4 ±0.15 8.55 ±0.20 7. 0 ±0.10 3.70 ±0.10
Leader min 300 300 390 390
Trailer min 300 160 160 160
Reel Dimensions
Reel Diameter A max 340 390 340 340
Core Diameter N min 50 75 50 50
Space between
Flanges-less Device W116.4 -0/+2.0 25.4 ±0.5 16.4 -0/+2.0 16.4 -0/+2.0
Reel Width W2 max 22.4 30.4 22.4 22.4
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
TS600/TSM600 – Tape and Reel Specifications
TS devices are packaged per EIA 481 and EIA 481-2 standards.
See Figures 1 and 2 for details.
TS600 TSM600
Description EIA Mark Dimension
(mm)
Tolerance
(mm)
Dimension
(mm)
Tolerance
(mm)
Carrier Tape Width W 32 ±0.3 32 ±0.3
Sprocket Hole Pitch
P04.0 ±0.1 4.0 ±0.1
P116 ±0.1 24 ±0.1
P22.0 ±0.1 2.0 ±0.1
A010 ±0.1 11. 2 ±0.1
B019.2 ±0.1 1 7. 8 ±0.1
B1 max 21.6 23.45
Sprocket Hole Diameter
D01. 5 -0/+1.0 1. 5 -0/+1.0
F 14.2 ±0.1 14.2 ±0.1
E11.75 ±0.1 1. 74 ±0.1
E2 min 28.4 ±0.1 28.4 ±0.1
Tape Thickness T max 0.50 ±0.5 0.5 ±0.5
Tape Thickness with Splice
T1 max 0.1 0.1
K013.2 ±0.1 11. 9 ±0.1
Leader min 390 390
Trailer min 160 160
Reel Dimensions
Reel Diameter A max 360 360
Core Diameter N min 50 50
Space between Flanges-less Device W132.4 -0/+2.0 32.4 -0/+2.0
Reel Width W2 max 40 40
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/02/19
Telecom > Surface Mount > TS Series
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitabil-
ity of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applica-
tions. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
WARNING
Users should independently evaluate the suitability of and test each product selected for their own application.
Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
These devices are intended for protection against damage caused by occasional overcurrent or overtemperature fault conditions and should
not be used when repeated fault conditions or prolonged trip events are anticipated.
Contamination of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the performance
of the devices.
Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and
mechanical procedures for electronic components.
PPTC devices are not recommended for installation in applications where the device is constrained such that its PTC properties are inhibited,
for example in rigid potting materials or in rigid housings, which lack adequate clearance to accommodate device expansion.
Operation in circuits with a large inductance can generate a circuit voltage (Ldi/dt) above the rated voltage of the device.
Tape and Reel Diagrams
P0
E1
E2
FW
P2
D0
A0
B0
P1
B1
T1
K0
T
Cover Tape
Embossment
Center Lines
of Cavity
A
Cover Tape
Embossed Cavity
Carrier Tape
N (Hub Dia.)
W2 (Measured at Hub)
W1 (Measured at Hub)
Figure 1
Figure 2