Datasheet

ManualsBrandsBOURNS ManualsFusesPTC fuse Current I(H) 7.3 A 20 V (L x W x H) 29.1 x 14.5 x 1 mm 1 pc(s)

Features

■ Axial leaded

■ Fully compatible with current industry

standards

■ Weldable nickel terminals

■ Very low internal resistance

■ Operating currents to 9.0 amps

■ RoHS compliant*

■ Agency recognition:

Applications

Any application that requires protection at low

resistances:

■ Rechargeable battery pack protection

■ Cellular phones

■ Laptop computers

MF-LR Series - PTC Resettable Fuses

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁ cations are subject to change without notice.

Customers should verify actual device performance in their speciﬁ c applications.

*RoHS COMPLIANT

Environmental Characteristics

Operating/Storage Temperature ........................... -40 °C to +85 °C

Maximum Device Surface Temperature

in Tripped State ................................................ 125 °C

Passive Aging ....................................................... +70 °C, 1000 hours ............................................... ±10 % typical resistance change

Humidity Aging...................................................... +85 °C, 85% R.H. 7 days ...................................... ±10 % typical resistance change

Vibration ............................................................... MIL-STD-883C, ..................................................... No change

Condition A

Test Procedures And Requirements For Model MF-LR 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

UL File Number .................................................... E 174545S

CSA File Number .................................................. CA 110338

TÜV File Number .................................................. R2057213

Electrical Characteristics

Thermal Derating Chart - I

hold

(Amps)

Model

Ambient Operating Temperature

-40 ºC -20 ºC 0 ºC 23 ºC 40 ºC 50 ºC 60 ºC 70 ºC 85 ºC

MF-LR190 2.8 2.5 2.3 1.9 1.6 1.5 1.4 1.2 1.0

MF-LR190S 2.8 2.5 2.3 1.9 1.6 1.5 1.4 1.2 1.0

MF-LR260 3.8 3.4 3.1 2.6 2.2 2.0 1.9 1.7 1.4

MF-LR260S 3.8 3.4 3.1 2.6 2.2 2.0 1.9 1.7 1.4

MF-LR380 5.5 4.9 4.4 3.8 3.3 3.0 2.8 2.5 2.1

MF-LR450 6.5 5.8 5.3 4.5 3.9 3.6 3.3 2.9 2.5

MF-LR550 8.0 7.1 6.2 5.5 4.7 4.3 4.0 3.6 3.0

MF-LR600 8.7 7.8 7.1 6.0 5.2 4.7 4.4 3.9 3.3

MF-LR730 10.5 9.5 8.6 7.3 7.4 6.8 6.2 5.5 4.5

MF-LR730/20 10.5 9.5 8.6 7.3 7.4 6.8 6.2 5.5 4.5

MF-LR900/20 12.7 11.4 10.0 9.0 7.5 6.8 6.2 5.5 4.5

** TÜV recognition and UL approval pending.

Model

V max.

Volts

I max.

Amps

hold

trip

Initial

Resistance

1 Hour (R

)

Post-Trip

Resistance

Max. Time

to Trip

Tripped Power

Dissipation

Amperes

at 23 °C

Ohms

at 23 °C

Ohms

at 23 °C

Amperes

at 23 °C

Seconds

at 23 °C

Watts

at 23 °C

Hold Trip Min. Max. Max. Typ.

MF-LR190 15 100 1.90 3.90 0.039 0.072 0.102 9.5 5.0 1.2

MF-LR190S 15 100 1.90 3.90 0.039 0.072 0.102 9.5 5.0 1.2

MF-LR260 15 100 2.60 5.80 0.020 0.042 0.083 13.0 5.0 1.3

MF-LR260S 15 100 2.60 5.80 0.020 0.042 0.083 13.0 5.0 1.3

MF-LR380 15 100 3.80 8.30 0.013 0.026 0.037 19.0 5.0 2.5

MF-LR450 16 100 4.50 8.90 0.011 0.020 0.028 22.5 5.0 1.4

MF-LR550 10 100 5.50 10.50 0.009 0.019 0.022 27.5 5.0 1.4

MF-LR600 10 100 6.00 11.70 0.007 0.014 0.019 30.0 5.0 2.8

MF-LR730 10 100 7.30 14.10 0.006 0.012 0.015 30.0 5.0 3.0

MF-LR730/20** 20 100 7.30 14.10 0.006 0.012 0.015 30.0 5.0 3.0

MF-LR900/20** 20 100 9.00 16.70 0.006 0.010 0.014 45.0 5.0 3.0

0144T

trip

is approximately two times I

hold

Summary of content (4 pages)

PAGE 1
■ Agency recognition: PL IA NT Features CO M ■ Axial leaded Applications *R oH S ■ Fully compatible with current industry ■ ■ 014 4T ■ ■ Any application that requires protection at low resistances: ■ Rechargeable battery pack protection ■ Cellular phones ■ Laptop computers standards Weldable nickel terminals Very low internal resistance Operating currents to 9.0 amps RoHS compliant* MF-LR Series - PTC Resettable Fuses Electrical Characteristics Ihold Model V max. Volts I max.
PAGE 2
MF-LR Series - PTC Resettable Fuses Product Dimensions A Model MF-LR190 MF-LR190S MF-LR260 MF-LR260S MF-LR380 MF-LR450 MF-LR550 MF-LR600 MF-LR730 MF-LR730/20 MF-LR900/20 Packaging: Min. 19.9 (0.783) 19.9 (0.783) 20.9 (0.823) 20.9 (0.823) 24.0 (0.945) 24.0 (0.945) 35.0 (1.378) 24.0 (0.945) 30.0 (1.18) 27.1 (1.067) 45.4 (1.787) B Max. 22.1 (0.870) 22.1 (0.870) 23.1 (0.909) 23.1 (0.909) 26.0 (1.024) 26.0 (1.024) 37.0 (1.457) 26.0 (1.024) 29.1 (1.146) 29.1 (1.146) 47.6 (1.874) Min. 4.9 (0.193) 4.9 (0.
PAGE 3
MF-LR Series - PTC Resettable Fuses Typical Time to Trip at 23 ˚C How to Order MF - LR 730/20 S - 0 100 ® Time to Trip (Seconds) Multifuse Product Designator Series LR = Axial Leaded “Strap” Component 10 MF-LR900/20 MF-LR730 & MF-LR730/20 MF-LR600 MF-LR550 MF-LR450 MF-LR380 1 MF-LR260 MF-LR190 Hold Current, Ihold/Vmax* 190-900 (1.90 Amps - 9.
PAGE 4
MF-S, MF-LS, MF-LR and MF-VS Series Tape and Reel Specifications Taped Component Dimensions 48.0 ± 0.3 (1.90 ± .012) 12.0 ± 0.1 (.472 ± .004) 4.0 ± 0.1 (.157 ± .004) 1.0 + 0.1/ -0 (.039 + .004/-0) 0.2 MAX. (.008) DIA. 5.56 ± 0.10 (.219 ± .004) 2.0 (.079) RADIUS 8.0 ± 0.2 (.315 ± .008) PASTEBOARD HOLD 4.0 ± 0.2 (.157 ± .008) PASTEBOARD HOLD Reel Dimensions 13.0 (.512) DIA. 330 (13.0) Specifications are subject to change without notice.