MF-LSMF300X24-2 Bourns Inc., MF-LSMF300X24-2 Datasheet

MF-LSMF300X24-2

Manufacturer Part Number

MF-LSMF300X24-2

Description

PTC - (2920)SURFACE MNT

Manufacturer

Bourns Inc.

Series

MF-LSMFr

Datasheet

1.MF-LSMF300X-2.pdf (4 pages)

Specifications of MF-LSMF300X24-2

Voltage - Max

24V

Current - Max

20A

Current - Hold (ih) (max)

Current - Trip (it)

5.2A

R Min/max

0.020 ~ 0.075 Ohm

Time To Trip

Package / Case

2920 (7351 Metric)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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*** Features Multifuse

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

Test

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

MF-LSMF185/33X

MF-LSMF260X

MF-LSMF300X

MF-LSMF300/24X

Environmental Characteristics

Test Procedures And Requirements For Model MF-LSMF Series

Electrical Characteristics

Model***

**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:

Free Xpansion Design

V max.

Volts

33.0

24.0

6.0

™

I max.

Amps

for MF-LSMF Series.

Condition A

Test Conditions

http://www.ul.com/ Follow link to Certiﬁ cations, then UL File No., enter E174545

Features

■

MF-LSMF Series - PTC Resettable Fuses

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**

I hold

Hold

1.85

2.60

3.00

Bromine (Br) content: ≤ 900 ppm; Chlorine (Cl) content: ≤ 900 ppm; Total Br + Cl content: ≤1500 ppm.

Amperes

at 23 °C

3.70

5.20

5.00

5.20

I trip

Trip

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

R Min.

0.045

0.020

0.015

0.020

Resistance

at 23 °C

Ohms

R 1Max.

0.150

0.075

0.048

0.075

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

■

Accept/Reject Criteria

Surface mount packaging for automated

assembly

Agency recognition:

Standard 7555 mm (2920 mils) footprint

Amperes

at 23 °C

Speciﬁ cations are subject to change without notice.

8.0

Max. Time

To Trip

Seconds

at 23 °C

20.00

2.50

5.00

Dissipation

at 23 °C

Tripped

Power

Watts

Typ.

1.5

Related parts for MF-LSMF300X24-2

MF-LSMF300X24-2 Summary of contents

Page 1

... Vibration ............................................................... MIL-STD-883C, Method 2007.1, .......................... No change Test Procedures And Requirements For Model MF-LSMF Series Test 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 ...

Page 2

... Applications ■ Automotive electronics ■ Industrial controls ■ IEEE ports ■ Portable electronics MF-LSMF Series - PTC Resettable Fuses Product Dimensions A Model Min. Max. 6.73 7.98 MF-LSMF185/33X (0.265) (0.312) 6.73 7.98 MF-LSMF260X (0.265) (0.312) 6.73 7.98 MF-LSMF300X (0.265) (0.312) 6.73 7.98 MF-LSMF300/24X (0 ...

Page 3

... Notes: • MF-LSMF models cannot be wave soldered. Please contact Bourns for hand soldering recommendations. • If reﬂ ow temperatures exceed the recommended proﬁ le, devices may not meet the performance requirements. • Compatible with Pb and Pb-free solder reﬂ ow proﬁ les. ...

Page 4

... MF-LSMF Series Tape and Reel Speciﬁ cations NOTE: Effective December 1, 2010 (product date code “X”), the cover tape will be changed to the new 3M Tape Dimensions max min. T max max Leader min. Trailer min. Reel Dimensions A max. N min max COVER TAPE ...

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