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IA
NT
Features

RH7 5 418 0 0S
Applications

Operating temperature range up to 125 C Low thermal derating factor Higher hold currents at elevated temperature Choice of operating currents RoHS compliant* and Pb free
Protection of automotive circuitry including engine control modules Overcurrent surge protection of electronic equipment required to operate at high operating temperature ranges Resettable fault protection of general electronic equipment
*R
oH
S
CO
M
PL
MF-RHT Series - PTC Resettable Fuses
Electrical Characteristics
Ihold Model V max. Volts I max. Amps Hold Itrip Amperes at 23 C Trip Resistance Ohms at 23 C RMin. R1Max. (Post Trip) Max. Time To Trip Amperes at 23 C Seconds at 23 C Max.
Tripped Power Dissipation
Watts at 23 C Typ.
MF-RHT070 MF-RHT200 MF-RHT450 MF-RHT650 MF-RHT750 MF-RHT1300
16 16 16 16 16 16
40 100 100 100 100 100
0.7 2.0 4.5 6.5 7.5 13.0
1.4 3.8 7.8 12.0 13.1 24.0
0.3 0.045 0.022 0.011 0.0094 0.0041
0.8 0.110 0.054 0.026 0.022 0.010
3.5 12.5 22.5 32.5 37.5 60.0
4.0 3.0 3.0 5.5 7.0 13.0
1.4 1.4 3.6 4.3 4.5 6.9
Environmental Characteristics
Operating Temperature..............................................................-40 C to +125 C Storage Temperature ................................................................-40 C to +85 C Passive Aging ............................................................................+85 C, 1000 hours ..........................................................15 % typical resistance change Humidity Aging ..........................................................................+85 C, 85 % R.H. 1000 hours ........................................15 % typical resistance change Thermal Shock ..........................................................................MIL-STD-202, Method 107, ............................................10 % typical resistance change +125 C to -40 C,10 cycles Vibration ....................................................................................MIL-STD-883C, Method 2007.1, Condition A..................No change
Test Procedures And Requirements For Model MF-RHT 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 R1max Time to Trip ........................................At specified current, 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 Solderability ......................................MIL-STD-202, Method 208....................................................95 % min. coverage
Thermal Derating Chart - Ihold (Amps)
Ambient Operating Temperature Model MF-RHT070 MF-RHT200 MF-RHT450 MF-RHT650 MF-RHT750 MF-RHT1300 -40 C 0.95 2.71 6.1 8.8 10.2 17.7 -20 C 0.87 2.49 5.6 8.1 9.4 16.3 0 C 0.79 2.26 5.1 7.4 8.6 14.8 23 C 0.7 2.00 4.5 6.5 7.5 13.0 40 C 0.62 1.77 4.0 5.7 6.6 11.4 50 C 0.56 1.60 3.6 5.3 6.1 10.5 60 C 0.51 1.46 3.3 4.8 5.6 9.6 70 C 0.47 1.34 3.0 4.3 5.0 8.6 85 C 0.39 1.11 2.5 3.6 4.1 7.2 125 C 0.17 0.49 1.1 1.6 1.9 3.3
Circuit Protection Division
Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 * Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
MF-RHT Series - PTC Resettable Fuses
Product Dimensions
Model MF-RHT070 MF-RHT200 MF-RHT450 MF-RHT650 MF-RHT750 MF-RHT1300 A Max. 6.86 (0.27) 9.4 (0.37) 10.4 (0.41) 12.7 (0.50) 14.0 (0.55) 23.5 (0.925) B Max. 10.8 (0.425) 14.0 (0.55) 15.6 (0.61) 22.2 (0.88) 23.5 (0.93) 28.7 (1.17) C Nom. 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 10.2 (0.402) Tol. 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) D Min. 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) E Max. 3.0 (0.12) 3.0 (0.12) 3.0 (0.12) 3.0 (0.12) 3.0 (0.12) 3.6 (0.14) F Nom. 0.51 (0.020) 0.51 (0.020) 0.81 (0.032) 0.81 (0.032) 0.81 (0.032) 1.0 (0.040) Physical Characteristics Style Material 1 1 2 2 2 2 Sn/CuFe Sn/Cu Sn/Cu Sn/Cu Sn/Cu Sn/Cu
MM 0.51 (24AWG) UNITS = 0.81 (20AWG) Packaging: (INCHES) 1.0 (18AWG) BULK: 500 pcs. per bag TAPE & REEL: MF-RHT070 ~ MF-RHT200 = 3000 pcs. per reel; MF-RHT450 ~ MF-RHT650 = 1500 pcs. per reel; MF-RHT750 ~ MF-RHT1300 = 1000 pcs. per reel AMMO-PACK: MF-RHT070 ~ MF-RHT200 = 2000 pcs. per pack; MF-RHT450 ~ MF-RHT750 = 1000 pcs. per pack; MF-RHT1300 = 500 pcs. per pack
Style 1
A E
Style 2
A E
Typical Part Marking
Represents total content. Layout may vary.
How to Order
MF - RHT 750 - __
Multifuse(R) Product Designator Series RHT = High Temperature Radial Leaded Component Hold Current, Ihold 070 - 1300 (0.70 - 13.00 Amps) Packaging Options = Bulk Packaging - 2 = Tape and Reel* - AP = Ammo-Pak* *Packaged per EIA 486-B
B
B
PART IDENTIFICATION
MANUFACTURER'S TRADEMARK RH750 4180S COUNTRY OF MANUFACTURE (S = CHINA)
D D
DATE CODE (FIRST DIGIT = LAST DIGIT OF YEAR; NEXT THREE DIGITS = DAY OF YEAR) EXAMPLE: 4180 = 2004 DAY 180
F
C
F
C
Typical Time to Trip at 23 C
MF-RHT070
100
MF-RHT200
MF-RHT750 MF-RHT650 MF-RHT450
MF-RHT1300
The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specific customer applications may differ from these values due to the influence of other variables.
Time to Trip (Seconds)
10 1 0.1 0.01 1 10 100
Fault Cu rrent (Amps)
MF-RHT SERIES, REV. C, 11/05 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
MF-RHT Series Tape and Reel Specifications
Devices taped using EIA468-B/IEC60286-2 standards. See table below and Figures 1 and 2 for details. IEC Mark W W0 EIA Mark W W4 Dimensions Dimensions Tolerance
18 (.709) 11 (.433) -0.5/+1.0 (-0.02/+.039)
Dimension Description Carrier tape width Hold down tape width: Hold down tape Top distance between tape edges Sprocket hole position Sprocket hole diameter Abscissa to plane (straight lead) Abscissa to plane (kinked lead) Abscissa to top: MF-RHT070 ~ MF-RHT450 Abscissa to top: MF-RHT650 ~ MF-RHT1300 Overall width w/lead protrusion: MF-RHT070 ~ MF-RHT450 Overall width w/lead protrusion: MF-RHT650 ~ MF-RHT1300 Overall width w/o lead protrusion: MF-RHT070 ~ MF-RHT450 Overall width w/o lead protrusion: MF-RHT650 ~ MF-RHT1300 Lead protrusion Protrusion of cutout Protrusion beyond hold tape Sprocket hole pitch Pitch tolerance Device pitch: MF-RHT070 ~ MF-RHT450 Device pitch: MF-RHT650 ~ MF-RHT1300 Tape thickness Tape thickness with splice: MF-RHT070 Tape thickness with splice: MF-RHT450 ~ MF-RHT1300 Splice sprocket hole alignment Body lateral deviation Body tape plane deviation Ordinate to adjacent component lead Lead spacing: MF-RHT070 ~ MF-RHT750 Lead spacing: MF-RHT1300 Reel width: MF-RHT070 ~ MF-RHT450 Reel width: MF-RHT650 ~ MF-RHT1300
min.
No protrusion W2 W1 D0 H H0 H1 H1 W6 W5 D0 H H0 H1 H1 C1 C1 C2 C2 I1 L I2 P0 L1 L I2 P0
3 (.118) 9 (.354) 4 (.157) 18.5 (.728) 16 (.63) 32.2 (1.268) 45.0 (1.837) 42.5 (1.673) 55.0 (2.165) 42.5 (1.673) 54.0 (2.126) 1.0 (.039) 11 (.433)
max.
-0.5/+0.75 (-0.02/+0.03) 0.2 (.0078) 3.0 (.118) 0.5 (.02)
max. max. max. max. max. max. max. max.
Not specified
12.7 (0.5) 0.3 (.012)
20 consecutive
12.7 (0.5) 25.4 (1.0)
1
0.3 (.012) 0.6 (.024)
t
t t1 t1
0.9 (.035) 1.5 (.059) 2.3 (.091) 4.0 (0.157)
max. max. max.
0.2 (.008) 1.0 (.039) 0.3 (.012) 0.07 (.028) -0.2/+0.8 (-.006/+.031) -0.2/+0.8 (-.006/+.031)
h p P1 F F w w
h p P1 F F W2 W2
0 0
3.81 (0.15) 5.08 (0.2) 10.2 (0.402) 56 (2.20) 63.5 (2.50)
max. max.
DIMENSIONS = MM (INCHES)
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
MF-RHT Series Tape and Reel Specifications
IEC Mark d W1 f h EIA Mark a h c n Dimensions Dimensions Tolerance
370 (14.57) 4.75 (.187) 26 (1.024) 80 (3.15) 64 372 (2.52) (14.6)
Dimension Description Reel diameter Space between flanges less device Arbor hole diameter Core diameter Box Consecutive missing places Empty places per reel
max.
3.25 (.128) 12.0 (.472)
max.
372 (14.6)
3 Not specified
max.
Taped Component Dimensions - Figure 1
h h p p
Reference plane H1 L P1 F A B W0 H0 W1 W
DIMENSIONS =
H1 H
MM (INCHES)
I2
I1
P0
D0
User direction of feed Cross section A - B
t
Reel Dimensions - Figure 2
Reel h d User direction of feed Upper side Tape
Lower side
f
h w
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.

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