CMF-RD50 BOURNS | Alldatasheet
Document overview
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Technical content
Features
■ Two resistance-matched PTCs in a ceramic housing ■ Aids compliance with: - ITU-T K.20/21/45 - Telcordia GR-1089-CORE - UL 60950, 3rd Ed. ■ Narrow resistance tolerance ■ RoHS compliant*
Applications
Used as a secondary overcurrent protection device in: ■ Customer Premise Equipment (CPE) ■ Central Office (CO) ■ Access equipment *RoHS COMPLIANT How to Order CMF - RD 50 - 10 - 0 Product Designator Style RD = Radial Dual Package 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. Product Dimensions Packaging options: BULK: 96 pcs. per plastic box MM (INCHES)DIMENSIONS = 2 4 3.5 (.138) 10.0 ± 0.2 (.394 ± .008) 8.8 ± 0.2 (.346 ± .008) 8.8 ± 0.2 (.346 ± .008) 0.35 (.014) SIDE FRONT TOP BOTTOM 0.75 (.030)0.6 (.236) 1 & 3 = FRONT PINS 2 & 4 = BACK PINS PINS 1 & 2 = 1ST CPTC PINS 3 & 4 = 2ND CPTC 5.0 ± 0.2 (.197 ± .008) 6.0 (.236) 9.3 ± 0.2 (.366 ± .008) 1.5 (.059) 2.0 (.079) 4.7 ± 0.1 (.185 ± .039) 5.0 ± 0.2 (.197 ± .008) 2.5 ± 0.1 (.098 ± .004) 12 3 4 C50M7G MANUFACTURER'S TRADEMARK CERAMIC CASE PART IDENTIFICATION: 50M = CMF-RD50 50K = CMF-RD50-10 YEAR CODE: 7 = 2007 BI-WEEKLY DATE CODE: WEEK 13-14 = G Primary Test Protection Test Condition Requirements* Ri = R initial Rf = R final ** Circuit disconnected or high resistance is acceptable. Test Procedures And Requirements For Model CMF-RD Series
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