Features
■ Radial leaded devices
■ Smaller size for similar Ihold rating
■ Faster tripping
■ RoHS compliant* and halogen free**
Applications
■ Automotive applications
■ Anywhere space is limited and fast
tripping is required
MF-RG Series - PTC Resettable Fuses
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing defi nition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Electrical Characteristics
Model V max.
Volts
I max.
Amps
Ihold Itrip Initial
Resistance
1 Hour (R1)
Post-Trip
Resistance
Max. Time
To Trip
Tripped
Power
Dissipation
Amperes
at 23 °C
Ohms
at 23 °C
Ohms
at 23 °C
Amperes
at 23 °C
Seconds
at 23 °C
Watts
at 23 °C
Hold Trip Min. Max. Max. Typ.
MF-RG300 16 100 3.00 5.10 0.038 0.065 0.0975 15 1.0 2.30
MF-RG500 16 100 5.00 8.50 0.015 0.023 0.0340 25 2.0 2.60
Environmental Characteristics
Operating/Storage Temperature ........................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State .................................................... 125 °C
Passive Aging ....................................................... +85 °C, 1000 hours ............................................... ±5 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±5 % typical resistance change
Thermal Shock ..................................................... -40 °C to +85 °C, 10 times .................................... ±10 % typical resistance change
Solvent Resistance ............................................... MIL-STD-202, Method 215 ................................... No change
Vibration ............................................................... MIL-STD-883C, Method 2007.1, ........................... No change
Condition A
Test Procedures And Requirements For Model MF-RG Series
Test Test Conditions Accept/Reject Criteria
Visual/Mech. ......................................................... Verify dimensions and materials ........................... Per MF physical description
Resistance ............................................................ In still air @ 23 °C ................................................. Rmin ≤ R ≤ Rmax
Time to Trip ........................................................... 5 times Ihold, Vmax, 23 °C ................................... T ≤ max. time to trip (seconds)
Hold Current ......................................................... 30 min. at Ihold ..................................................... No trip
Trip Cycle Life ....................................................... Vmax, Imax, 100 cycles ........................................ No arcing or burning
Trip Endurance ..................................................... Vmax, 48 hours ..................................................... No arcing or burning
Thermal Derating Chart - Ihold (Amps)
Model Ambient Operating Temperature
-40 °C -20 °C 0 °C 23 °C 40 °C 50 °C 60 °C 70 °C 85 °C
MF-RG300 4.4 4.0 3.6 3.0 2.6 2.4 2.1 1.9 1.4
MF-RG500 7.3 6.6 6.0 5.0 4.4 4.0 3.6 3.1 2.4
Itrip is approximately two times Ihold.
*RoHS COMPLIANT
&
**HALOGEN FREE
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
MF-RG Series - PTC Resettable Fuses
Product Dimensions
DIMENSIONS: MM
(INCHES)
Model A
Max.
B
Max.
CD
Min.
E
Max.
F
Nom.
Physical Characteristics
Nom. Tol. ± Style Lead Dia. Material
MF-RG300 7.1
(0.280)
11.0
(0.433)
5.1
(0.201)
0.7
(0.028)
7.6
(0.299)
3.0
(0.118)
0.81
(0.032) 10.81
(0.032) Sn/Cu
MF-RG500 10.4
(0.409)
14.3
(0.563)
5.1
(0.201)
0.7
(0.028)
7.6
(0.299)
3.0
(0.118)
0.81
(0.032) 10.81
(0.032) Sn/Cu
Packaging options:
BULK: 500 pcs. per bag. TAPE & REEL: 3000 pcs. per reel. AMMO-PACK: 2000 pcs. per reel.
MF-RG SERIES, REV. I, 11/14
Typical Time to Trip at 23 ˚C
How to Order
MF - RG 300 - 0
Multifuse® Product
Designator
Series
RG = Smaller Radial Leaded
Component
Hold Current, Ihold
300-500 (3.0 Amps - 5.0 Amps)
Packaging Options
- 0 = Bulk Packaging
- 2 = Tape and Reel
- AP = Ammo-Pak
Typical Part Marking
Represents total content. Layout may vary.
0.81 (20AWG)
AE
B
D
CF
NOTE: Kinked leads are available for board
standoff options. Contact factory for details.
RG300
6180T
MANUFACTURER'S
TRADEMARK
PART
IDENTIFICATION
DATE CODE
(LAST DIGIT
OF YEAR &
JULIAN DATE)
LOT NO.
(T = TAIWAN)
0.001
0.01
0.1
1
10
100
1 10 100
Fault Current (Amps)
Time to Trip (Seconds)
MF-RG300
MF-RG500
IEC EIA Dimensions
Dimension Description Mark Mark Dimensions Tolerance
Carrier tape width W W 18 -0.5/+1.0
(.709) (-0.02/+.039)
Hold down tape width W4 11
min.
(.433)
Hold down tape W0 No protrusion
Top distance between tape edges W2 W
6 3
max.
(.118)
Sprocket hole position W1 W
5 9 -0.5/+0.75
(.354) (-0.02/+0.03)
Sprocket hole diameter D0 D
0 4 ±0.2
(.157) (±.0078)
Abscissa to plane (straight lead) H H 18.5 ±3.0
(.728) (±.118)
Abscissa to plane (kinked lead) H0 H
0 16 ±0.5
(.63) (±.02)
Abscissa to top (straight lead) H1 H
1 38.0
max.
(1.496)
Abscissa to top (kinked lead) H1 H
1 32.2
max.
(1.268)
Overall width w/lead protrusion (straight lead) C1 55.0
max.
(2.165)
Overall width w/lead protrusion (kinked lead) C1 43.2
max.
(1.7)
Overall width w/o lead protrusion (straight lead) C2 54.0
max.
(2.126)
Overall width w/o lead protrusion (kinked lead) C2 42.5
max.
(1.673)
Lead protrusion I1 L
1 1.0
max.
(.039)
Protrusion of cutout L L 11
max.
(.433)
Protrusion beyond hold-down tape I2 I
2 Not specifi ed
Sprocket hole pitch P0 P
0 12.7 ±0.3
(0.5) (±.012)
Pitch tolerance 20 consecutive ±1
(±.039)
Device pitch 12.7
(0.5)
Tape thickness t t 0.9
max.
(.035)
Tape thickness with splice t1 2.0
max.
(.079)
Splice sprocket hole alignment 4.0 ±0.2
(.157) (±.008)
Body lateral deviation Δh Δh 0
±1
(±.039)
Body tape plane deviation Δp Δp 0
±1.3
(±.051)
Lead seating plane deviation ΔP1 P
1 3.81 ±0.7
(.015) (±.028)
Lead spacing F F 8.0
(.315)
Reel width w w 56.0
max.
(2.20)
Reel diameter d a 370.0
max.
(14.57)
Space between fl anges less device 4.75 ±3.25
(.187) (±.128)
MF-RG Series Tape and Reel Specifi cations
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Devices taped using EIA468–B/IEC60286-2 standards. See table below and Figures 1 and 2 for details.
DIMENSIONS: MM
(INCHES)
t
User direction of feed
Cross section A - B
pp
H
H1
Reference plane
W0
H0W1
W
AB
F
D0
P0
I1
I2
L
H1
P1
h
h
IEC EIA Dimensions
Dimension Description Mark Mark Dimensions Tolerance
Arbor hole diameter f c 26.0 ±12.0
(1.02) (±.472)
Core diameter h n 80.0
max.
(3.15)
Box 62 355 345
nom.
(2.44) (14.0) (13.6)
Consecutive missing places 3 max.
Empty places per reel Not specifi ed
MF-RG Series Tape and Reel Specifi cations
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Taped Component Dimensions - Figure 1
Reel Dimensions - Figure 2
h
w
h
f
d
Reel
Upper side
Tape
Lower side
User
direction
of
feed
DIMENSIONS: MM
(INCHES)
