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Document overview

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Technical content

Features

■ Radial leaded devices ■ Aids compliance with: - ITU-T K.20/21/45 - Telcordia GR-1089-CORE - UL 60950, 3rd Ed. ■ Narrow resistance tolerance ■ Agency recognition: ■ RoHS compliant*

Applications

Used as a secondary overcurrent protection device in: ■ Customer Premise Equipment (CPE) ■ Central Offi ce (CO) ■ Access equipment CMF-RL Series - Telecom CPTC 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. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specifi c applications. Test Procedures And Requirements For Model CMF-RL Series Primary Test Protection Test Condition Requirements* Ri = R initial Rf = R fi nal Test Model Test Condition Passing Criteria

600 V / 7 A for 5 seconds

600 V / 40 A for 1.5 seconds*For other models, please contact Bourns.

Electrical Characteristics

(RN) Packaging Resistance Matching Hold Current Trip Current Imax @

220 VAC

@ Imax / 220 VAC VAC Volts Ohms Tolerance Ohms @ 25 °C Amps @ 25 °C Amps @ 25 °C Amps @ 25 °C Seconds @ 25 °C CMF-RL10 600 220 10 ±20 % ± 0.5 0.15 0.30 3 ≤ 0.45 CMF-RL10-10 600 220 10 ±10 % ± 0.5 0.15 0.30 3 ≤ 0.45 CMF-RL25 600 220 25 ±20 % ± 0.5 0.100 0.200 3 ≤ 0.3 CMF-RL35 600 220 35 ±20 % ± 0.5 0.075 0.150 3 ≤ 0.15 CMF-RL35-10 600 220 35 ±10 % ± 0.5 0.075 0.150 3 ≤ 0.15 CMF-RL35A 600 220 35 ±10 % ± 0.5 0.075 0.150 3 ≤ 0.15 CMF-RL35A-10 600 220 35 ±10 % ± 0.5 0.075 0.150 3 ≤ 0.15 CMF-RL50 600 220 50 ±20 % ± 0.5 0.065 0.150 3 ≤ 0.15 CMF-RL50-10 600 220 50 ±10 % ± 0.5 0.065 0.150 3 ≤ 0.15 CMF-RL50A 600 220 50 ±20 % ± 0.5 0.050 0.100 3 ≤ 0.1 CMF-RL50A-10 600 220 50 ±10 % ± 0.5 0.050 0.100 3 ≤ 0.1 CMF-RL55 600 220 55 ±20 % ± 0.5 0.065 0.150 3 ≤ 0.15 CMF-RL55-10 600 220 55 ±10 % ± 0.5 0.065 0.150 3 ≤ 0.15 CMF-RL55A 600 220 55 ±20 % ± 0.5 0.050 0.100 3 ≤ 0.1 CMF-RL55A-10 600 220 55 ±10 % ± 0.5 0.050 0.100 3 ≤ 0.1 How to Order CMF - RL 50 __ A -10 - 0 Product Designator Style RL = Telecom Radial Leaded CPTC Rated Resistance (RN) 10-55 (10 Ohms - 55 Ohms) Uncoated Option U = Uncoated Part Blank = Standard Part Size Option A = Reduced Size Blank = Standard Size Rated Resistance Tolerance -10 = ±10 % Blank = ±20 % (Standard) Packaging Options - 0 = Bulk Packaging - Plastic Tray Alternative tolerances, resistances and lead lengths available on request. Typical Part Marking Represents total content. Layout may vary. 506G MANUFACTURER'S TRADEMARK PART IDENTIFICATION: 10 = CMF-RL10 25 = CMF-RL25 25U = CMF-RL25U 35 = CMF-RL35 50 = CMF-RL50 55 = CMF-RL55 10K = CMF-RL10-10 35K = CMF-RL35-10 50K = CMF-RL50-10 55K = CMF-RL55-10 35A = CMF-RL35A 50A = CMF-RL50A 55A = CMF-RL55A 35AK = CMF-RL35A-10 50AK = CMF-RL50A-10 55AK = CMF-RL55A-10 NOTE: UNCOATED PARTS ARE UNMARKED. YEAR CODE: 6 = 2006 BI-WEEKLY DATE CODE: WEEK 13-14 = G *RoHS COMPLIANT Operating Temperature Range: -40°C to +125 °C

Specifi cations are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specifi c applications. CMF-RL Series - Telecom CPTC Resettable Fuses Product Dimensions Packaging: BULK: CMF-RL25U & CMF-RL50A = 700 pcs. per bag; all other models = 600 pcs. per tray. DIMENSIONS: MM (INCHES) Model A B C D E F Characteristics CMF-RL10 9.5 (0.374) 4.5 (0.177) 13.5 (0.531) 3.5 (0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.0 ± 0.2 CMF-RL25 9.8 (0.386) 5.0 (0.197) 13.5 (0.531) 3.0 - 3.5 (0.118 - 0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.0 ± 0.3 CMF-RL25U 5.2 (0.205) 3.5 (0.138) 5.2 (0.205) 3.8 (0.150) 0.6 ± 0.05 (0.024 ± 0.019) 5.0 ± 0.2 CMF-RL35 9.8 (0.386) 5.0 (0.197) 13.5 (0.531) 3.0 - 3.5 (0.118 - 0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.08 ± 0.3 CMF-RL35A 7.5 (0.295) 5.6 (0.220) 13.0 (0.512) 3.5 (0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.0 ± 0.2 CMF-RL50 9.8 (0.386) 5.0 (0.197) 13.5 (0.531) 3.0 - 3.5 (0.118 - 0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.08 ± 0.3 CMF-RL50A 7.5 (0.295) 5.6 (0.220) 13.0 (0.512) 3.5 (0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.0 ± 0.2 CMF-RL55 9.8 (0.386) 5.0 (0.197) 13.5 (0.531) 3.0 - 3.5 (0.118 - 0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.08 ± 0.3 CMF-RL55A 7.5 (0.295) 5.6 (0.220) 13.0 (0.512) 3.5 (0.138) 0.6 ± 0.05 (0.024 ± 0.019) 5.0 ± 0.2 A AB C D F F E E B C D A F E B C D Style 1 Style 2 Style 3 CMF-RL SERIES, REV. S, 03/13