Features
■ High power ratings
■ Surface mount packaging for automated
assembly
■ Compliant with AEC-Q200 Rev-C- Stress
Test Qualification for Passive Components
in Automotive Applications
■ Agency recognition:
■ Standard 7555 mm (2920 mils) footprint
■ Low profile
■ Compatible with Pb and Pb-free solder
reflow profiles
■ RoHS compliant* and halogen free**
MF-LSMF Series - PTC Resettable Fuses
Electrical Characteristics
Model***
Tripped
Power
Max. Time
I
I
Resistance
hold
trip
To Trip
Dissipation
V max.
Volts
I max.
Amps
Amperes
at 23 °C
Ohms
at 23 °C
R
Amperes Seconds
Watts
at 23 °C
at 23 °C
at 23 °C
R
Hoꢂd
Trip
3.70
5.20
5.00
5.20
Tꢁp.
1.5
Min.
1Max.
MF-LSMF185/33X
MF-LSMF260X
MF-LSMF300X
33.0
24.0
6.0
40
20
40
20
1.85
2.60
3.00
3.00
0.045
0.020
0.015
0.020
0.150
0.075
0.048
0.075
8.0
8.0
8.0
8.0
2.50
5.00
20.00
5.00
1.5
1.5
1.5
MF-LSMF300/24X
24.0
®
™
*** Features Muꢂtifuse Free Xpansion Design for MF-LSMF Series.
Environmental Characteristics
Operating Temperature......................................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State .................................................... 125 °C
Passive Aging....................................................... +85 °C, 1000 hours............................................... 5 ꢀ tꢁpicaꢂ resistance change
Humiditꢁ Aging...................................................... +85 °C, 85 ꢀ R.H. 1000 hours ............................. 5 ꢀ tꢁpicaꢂ resistance change
Thermaꢂ Shock ..................................................... +85 °C to -40 °C, 20 times.................................... 10 ꢀ tꢁpicaꢂ resistance change
Soꢂvent 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-LSMF Series
Test
Test Conditions
Accept/Reject Criteria
Visuaꢂ/Mech.......................................................... Verifꢁ dimensions and materiaꢂs........................... Per MF phꢁsicaꢂ description
Resistance............................................................ In stiꢂꢂ air @ 23 °C................................................. Rmin ≤ R ≤ R1max
Time to Trip........................................................... At specified current, Vmax, 23 °C......................... T ≤ max. time to trip (seconds)
Hoꢂd Current......................................................... 30 min. at Ihoꢂd ..................................................... No trip
Trip Cꢁcꢂe Life....................................................... Vmax, Imax, 100 cꢁcꢂes........................................ No arcing or burning
Trip Endurance..................................................... Vmax, 48 hours..................................................... No arcing or burning
Soꢂderabiꢂitꢁ.......................................................... ANSI/J-STD-002................................................... 95 ꢀ min. coverage
UL Fiꢂe Number..................................................... E174545
http://www.uꢂ.com/ Foꢂꢂow ꢂink to Certifications, then UL Fiꢂe No., enter E174545
TÜV Certificate Number ....................................... R 50256634
http://www.tuvdotcom.com/ Foꢂꢂow ꢂink to “Certificate Search”, enter 50256634
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns is using the definition that appears to be the prevalent definition used as the industry standard at this time. The Bourns definition of “halogen-free” is:
Bromine (Br) content: ≤ 900 ppm; Chlorine (Cl) content: ≤ 900 ppm; Total Br + Cl content: ≤1500 ppm.
Specifications 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 specific applications.
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