Features
■ High power ratings
■ Compliant with AEC-Q200 Rev-C- Stress
Test Qualifi cation for Passive Components
in Automotive Applications
■ Low profi le
■ Compatible with Pb and Pb-free solder
refl ow profi les
■ RoHS compliant* and halogen free**
■ Surface mount packaging for automated
assembly
■ Agency recognition:
■ Standard 7555 mm (2920 mils) footprint
MF-LSMF Series - PTC Resettable Fuses
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns is using the defi nition that appears to be the prevalent defi nition used as the industry standard at this time. The Bourns defi nition of “halogen-free” is:
Bromine (Br) content: ≤ 900 ppm; Chlorine (Cl) content: ≤ 900 ppm; Total Br + Cl content: ≤1500 ppm.
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.
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 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±5 % typical resistance change
Thermal Shock ..................................................... +85 °C to -40 °C, 20 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
Electrical Characteristics
Model***
V max.
Volts
I max.
Amps
I
hold
I
trip
Resistance
Max. Time
To Trip
Tripped
Power
Dissipation
Amperes
at 23 °C
Ohms
at 23 °C
Amperes
at 23 °C
Seconds
at 23 °C
Watts
at 23 °C
Hold Trip
R
Min.
R
1Max.
Typ.
MF-LSMF185/33X 33.0 40 1.85 3.70 0.045 0.150 8.0 2.50 1.5
MF-LSMF260X 24.0 20 2.60 5.20 0.020 0.075 8.0 5.00 1.5
MF-LSMF300X 6.0 40 3.00 5.00 0.015 0.048 8.0 20.00 1.5
MF-LSMF300/24X 24.0 20 3.00 5.20 0.020 0.075 8.0 5.00 1.5
*** Features Multifuse
®
Free Xpansion Design
™
for MF-LSMF Series.
Test Procedures And Requirements For Model MF-LSMF 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 specifi ed 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 .......................................................... ANSI/J-STD-002 ................................................... 95 % min. coverage
UL File Number ..................................................... E174545
http://www.ul.com/ Follow link to Certifi cations, then UL File No., enter E174545
TÜV Certifi cate Number ....................................... R 50256634
http://www.tuvdotcom.com/ Follow link to “Certifi cate Search”, enter 50256634
*RoHS COMPLIANT
& AEC APPROVED
