Features
n Surface mount packaging for automated assembly
n Tiny footprint size (0402) and low profile for space-constrained mobile applications
n Ultra-low resistance, quick response
n RoHS compliant* and halogen free**
n Agency recognition:
MF-ASML/X Series - Low Ohmic PTC Resettable Fuses
Electrical Characteristics
Tripped
I
I
Resistance
Max. Time To Trip
at 23 °C
Power
Agency Recognition
hold
trip
Dissipation
V max. I max.
Model
Watts at
23 °C
Typ.
at 23 °C
Amps
at 23 °C Ohms
cUL
TÜV
Volts
Amps
50
R
R1
max
Amps
8.0
Seconds
0.1
E174545 R50391579
min
MF-ASML035/6
MF-ASML050/6
6
6
0.35
0.50
0.7
1.0
0.05
0.04
0.85
0.5
3
3
3
3
50
0.50
8.0
0.1
0.5
Environmental Characteristics
Operating Temperature......................................... -40 °C to +85 °C
Storage Condition
Before Opening ............................................... +40 °C max. / 70 % RH max.
After Opening................................................... +40 °C max. / 10 % RH max.
Floor Condition After Opening.............................. Consumption within 4 weeks at floor condition +30 °C max. / 60 % RH max.
Passive Aging....................................................... +85 °C, 1000 hours............................................... ±10 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 24 hours ................................. ±30 % typical resistance change
Thermal Shock ..................................................... -40 °C to +85 °C, 20 times.................................... ±30 % typical resistance change
Vibration ............................................................... MIL-STD-883C, Method 2007.1,........................... No change (R <R<R
)
min
1max
Condition A
Moisture Sensitivity Level (MSL).......................... See Note
ESD Classification - HBM..................................... 6
Test Procedures and Requirements
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, V
, 23 °C.......................... T ≤ max. time to trip (seconds)
max
Hold Current ......................................................... 30 min. at I
...................................................... No trip
, 100 cycles.......................................... No arcing or burning
, 48 hours ..................................................... No arcing or burning
Solderability.......................................................... 245 °C ±5 °C, 5 seconds ...................................... 95 % min. coverage
hold
Trip Cycle Life....................................................... V
, I
max max
Trip Endurance..................................................... V
max
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*
RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** 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.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and atwww.bourns.com/docs/legal/disclaimer.pdf.