010011
Fault Current (Amps)
0.1
0.01
1
10
100
Time to Trip (Seconds)
Typical Initial 1 Hour (R1) Max. Tripped
V max. I max.
Current Trip Resistance Post-Trip Time Power
Volts Amps
Limit Values Resistance To Trip Dissipation
Model Amperes mOhms mOhms Amperes Seconds Watts
At 23 °C At 23 °C At 23 °C At 23 °C At 23 °C At 23 °C
Hold Trip Min. Max. Min. Max. Typ.
MF-LL190 6 50 1.9 4.9 5 15 5 24 9.5 2.0 1.0
Features
■ Ultra-low resistance
■ Small size
■ Alternative shapes and sizes available on
request
■ Agency recognition
■ RoHS compliant*
Applications
■ Battery packs
Electrical Characteristic
MF-LL Series - PTC Resettable Fuse
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Environmental Characteristics
Operating/Storage Temperature .......................-40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ................................................+125 °C
Storage Conditions ..........................................+40 °C Max., 70 % RH Max., Packed in original packaging
Test Procedures And Requirements For Model MF-LL Series
Test Test Conditions Accept/Reject Criteria
Humidity Aging ................................................. +60 °C, 95 % R.H., 1000 Hours ...........Typical resistance change +30 % to -30 %
Passive Aging ................................................... +60 °C, 1000 Hours .............................Typical resistance change +20 % to -20 %
Low temp storage ............................................ -40 °C, 1000 Hours ..............................Typical resistance change +5 % to -5 %
Thermal Shock ................................................. +85 °C to -40 °C, 10 times...................Typical resistance change +5 % to -5 %
Vibration ........................................................... MIL-STD-883D, Method 2026 .............Rmin<R<R1 max
cUL File Number .............................................E 174545S
How to Order
MF - LL 190 __ - 0
Multifuse® Product
Designator
Series
LL = Low Loss
Hold Current, Ihold
190 (1.9 Amps)
Confi guration
Blank = Standard
Packaging Option
-0 = Bulk Packaging
Typical Part Marking
None.
Typical Time to Trip at 23 °C
*RoHS COMPLIANT
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
MF-LL Series - PTC Resettable Fuse
Product Dimensions
A B C D
Model Min. Max. Min. Max. Min. Max. Min. Max.
MF-LL190 15.2 16.8 2.96 3.26 0.6 1.1 2.3 2.5
(0.60) (0.66) (0.12) (0.13) (0.02) (0.04) (0.09) (0.10)
Packaging: Bulk - 1000 pcs. per bag.
Leads: 1/2 Hardened Nickel 0.1 mm (.004 ”) nominal thickness DIMENSIONS: MM
(INCHES)
MF-LL SERIES, REV. E, 04/11
D
B
A
COATING AREA
C
Asia-Pacifi c: 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
Thermal Derating Chart - Ihold (Amps)
Model
Ambient Operating Temperature
-20 ˚C 0 ˚C 23 ˚C 40 ˚C 50 ˚C 60 ˚C 70 ˚C 85 ˚C
MF-LL190 2.90 2.50 1.90 1.50 1.30 1.10 0.90 0.50
