Applications

n

Low voltage telecom equipment

n

Powered ethernet IEEE 802.3af ports

n

Automotive electronic control modules

(AEC-Q200 compliant models)

n

IEEE 1394 ports

n

USB for POS and IPC

n

Industrial control

n

Security systems

n

Portable electronics

MF-LSMF Series - PTC Resettable Fuses

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 at www.bourns.com/docs/legal/disclaimer.pdf.

How to Order

MF - LSMF 185/33X - 2

Multifuse® Product

Designator

Series

LSMF = 7451 mm (2920 mils)

Surface Mount Component

Hold Current, Ihold

030-600 (0.3 Amps - 6.0 Amps)

Voltage Option

/33 = 33 Volt Rated

X = Multifuse® freeXpansion™ Design

Packaging

-2 = Tape and Reel

packaged per EIA-481

Typical Part Marking

Represents total content. Layout may vary.

PART IDENTIFICATION EXAMPLES:

MF-LSMF030X

= 3

MF-LSMF050X

= 4

MF-LSMF075X

= 5

MF-LSMF075/60X = 5

MF-LSMF110X

= 6

MF-LSMF110/60X = 6

BI-WEEKLY DATE CODE:

WEEKS 47-48 = X

E

X

MF-LSMF125X

= 7

MF-LSMF125/33X = L

MF-LSMF150X

= M

MF-LSMF150/33X = 8

MF-LSMF185X

= N

MF-LSMF185/24X = 9

MF-LSMF185/33X = 9

MF-LSMF200X

= A

MF-LSMF200/24X = A

MF-LSMF260X

= E

MF-LSMF260/6X = P

MF-LSMF260/16X = E

MF-LSMF300X

= F

MF-LSMF300/16X = H

MF-LSMF300/24X = J

MF-LSMF330X

= X

MF-LSMF330/12X = O

MF-LSMF330/16X = O

MF-LSMF330/24X = O

MF-LSMF400/16X = K

MF-LSMF500/16X = S

MF-LSMF600/12X = T

Test Procedures and Requirements

Item

Test Conditions

Accept/Reject Criteria

Visual/Mechanical

Verify dimensions and materials

Per MF physical description

Resistance

In still air @ 23 °C

Rmin ≤ R ≤ Rmax

Time to Trip

At specified current, Vmax, 23 °C, still air

T ≤ max. time to trip (seconds)

Hold Current

30 min. at Ihold, still air

No trip

Trip Cycle Life

Vmax, Imax, 100 cycles

No arcing or burning

Trip Endurance

Vmax, 48 hours

No arcing or burning

Solderability

245 °C ± 5 °C, 5 seconds

95 % min. coverage

Environmental Characteristics

Item

Condition

Criteria

Operating Temperature

-40 °C to +85 °C

Recommended Storage

+40 °C max. / 70 % R.H. max.

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

-40 °C to +85 °C, 20 times

±10 % typical

resistance change

Solvent Resistance

MIL-STD-202, Method 215

No change

(marking still legible)

Vibration

MIL-STD-883C, Method 2007.1

Condition A

No change

(Rmin < R < R1max)

Moisture Sensitivity Level (MSL) See Note

ESD Classification

Class 6 (per AEC-Q200-2, HBM)