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

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

CMF-RLC Series - Telecom CPTC Resettable Fuses

Max.

Rated

Packaging

Hold

Trip

Imax @

Time to Trip

Voltage

Resistance

Resistance

Current

Current

230 VAC

@ Imax/

Model

Withstand

(RN)

Matching

230 VAC

Vrms

Ohms

Tolerance

Ohms

Amps @ 25 °C

Amps @ 25 °C

Amps

Seconds

CMF-RLC50

650

50

±20 %

± 0.5

0.065

0.150

< 3

< 0.1

CMF-RLC50-10

650

50

±10 %

± 0.5

0.065

0.150

< 3

< 0.1

Electrical Characteristics

Features

■

Radial leaded devices

■

Aids compliance with:

- ITU-T K.20, K.21, K.45

■

Narrow resistance tolerance

■

RoHS compliant*

Applications

Used as a secondary overcurrent protection

device in:

■

Customer Premise Equipment (CPE)

■

Central Office (CO)

■

Access equipment

Asia-Pacific:

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

Reliable Electronic Solutions

How to Order

CMF - RLC 50 -10 - 0

Product

Designator

Style

RLC = Telecom Radial Leaded CPTC -

Ceramic Case

Rated Resistance (RN)

50 (50 Ohms)

Rated Resistance Tolerance

-10 = ±10 %

Blank = ±20 % (Standard)

Packaging Options

- 0 = Bulk Packaging

Typical Part Marking

Represents total content. Layout may vary.

C50M6G

MANUFACTURER'S

TRADEMARK

CERAMIC

CASE

PART

IDENTIFICATION:

50M = CMF-RLC50

50K = CMF-RLC50-10

YEAR CODE:

6 = 2006

BI-WEEKLY

DATE CODE:

WEEK 13-14 = G

Physical

A

B

C

D

E

F

G

Characteristics

Model

Nom.

Nom.

Nom.

Nom.

Nom.

Nom.

Nom.

Material

CMF-RLC50

9.0±0.20

4.5±0.20

9.6±0.20

4.7±0.20

2.54±0.20

5.08 ± 0.20

0.8

Sn/Cu

(0.354±.008)

(0.177±.008)

(0.378±.008)

(0.185±.008)

(0.100±.008)

(0.200±.008)

(0.031)

Product Dimensions

Packaging options:

BULK: 192 pcs. per box

MM

(INCHES)

DIMENSIONS =

A

F

G

B

C

D

E

CMF-RLC SERIES, REV. C, 01/08

C50M6G

A

Test

Test Conditions

Requirements*

Lightning Surge ..................................10/1000 µs / 1k V / 25 A / 30 Cycles, every 3 Min. ..................................(Ri-Rf) / Ri < ±10 %

Power Induction..................................600 V, 1 A, 1 Sec., 10 Cycles, every 1 Min. ..............................................(Ri-Rf) / Ri < ±10 %

Power Contact ....................................230 V, 23 A, 15 Min. ..................................................................................(Ri-Rf) / Ri < ±10 %

Overvoltage Withstand ......................380 V, 3 A, 4 Hours, 1 Time ......................................................................(Ri-Rf) / Ri < ±10 %

Failure Mode ......................................600 V, RL=0, 60 Min, 1 Time ....................................................................**

Ri = R initial

Rf = R final

** Circuit disconnected or high reinforce is acceptable.

Test Procedures And Requirements For Model CMF-RLC Series