Features
■ Operating temperature range up to 125 °C
■ Low thermal derating factor
Applications
■ 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
■ Higher hold currents at elevated
temperature
■ RoHS compliant*
MF-PSHT Series - PTC Resettable Fuses
Electrical Characteristics
Tripped
Power
Max. Time
I
I
Resistance
hold
Amperes
trip
To Trip
Dissipation
V max.
I max.
Amps
Model
Volts
Ohms
at 23 °C
R
Amperes
Seconds
Watts
at 23 °C
at 23 °C
at 23 °C
at 23 °C
R
Hold
0.10
Trip
Typ.
1.0
Min.
1.0
1Max.**
7.5
MF-PSHT010X
**R
16
40
0.60
2.5
1.5
measured 24 hours post reflow.
1Max.
Environmental Characteristics
Operating Temperature......................................... -40 °C to +125 °C
Maximum Device Surface Temperature
in Tripped State .................................................... +125 °C
Passive Aging....................................................... +125 °C, 1000 hours............................................. R
Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. R
Thermal Shock ..................................................... +125 °C to -40 °C, 20 times.................................. R
<R
<R
<R
final
final
final
1max.
1max.
1max.
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-PSHT Series
Test
Visual/Mech.......................................................... Verify dimensions and materials........................... Per MF physical description
Resistance............................................................ In still air @ 23 °C................................................. R ≤ R ≤ R
Test Conditions
Accept/Reject Criteria
min
1max
Time to Trip........................................................... At specified current, Vmax, 23 °C......................... T ≤ max. time to trip (seconds)
Hold Current......................................................... 30 min. at I
..................................................... No trip
hold
Trip Cycle Life....................................................... V
, I
max max
, 100 cycles........................................ No arcing or burning
Trip Endurance..................................................... V
, 48 hours..................................................... No arcing or burning
max
Solderability.......................................................... ANSI/J-STD-002................................................... 95 % min. coverage
Thermal Derating Chart - I
(Amps)
hold
Ambient Operating Temperature
Model
-40 °C
-20 °C
0.13
0 °C
+23 °C
+40 °C
+50 °C
+60 °C
+70 °C
+85 °C
+125 °C
MF-PSHT010X
0.15
0.115
0.10
0.09
0.084
0.078
0.072
0.063
0.04
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 and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.