RCH50S68R00J Vishay

RCH Vishay Sfernice Power Resistors, for Mounting onto a Heatsink Thick Film Technology FEATURES 5 W to 50 W High power rating High overload capabilities up to 2500 V RMS Wide resistance range from 0R24 to 1 M Manufactured in cermet thick film technology, these power High thermal capacity up to 0.8 C/W resistors exhibit remarkable characteristics and the series Easy mounting includes 4 types ranging from 5 W to 50 W. Designed to be mounted onto a heatsink, the resistors can Reduced size and weight bear high short time overloads and 3 types of terminations 6 High insulation: 10 M are available. The resistors are non inductive and are particularly suitable for high frequency operation and cut-out circuits. DIMENSIONS in millimeters RCH...R RCH...V M2 2 6 6 RCH...S H 6 W 2.1 3 S 4.8 L P F 6 D 9 T General tolerance: 0.3 mm DIMENSIONS MODEL RCH 5 RCH 10 RCH 25 RCH 50 L 16.6 19 28 47.8 W 911 14 15.5 H 16.4 20.6 27.5 29.4 P Leads Pitch 10.2 12.7 18.3 30.5 F Connections Pitch 11.3 14.3 18.3 39.7 T 12.5 15.9 19.8 21.4 S 5.3 5 7.7 8 D 2.4 2.4 3.2 3.2 V Leads M2 M2 M3 M3 Weight (g) 4 5 7 12 www.vishay.com For technical questions, contact: sfer vishay.com Document Number: 50006 1 Revision: 09-Jun-08RCH Power Resistors, for Mounting onto a Heatsink Vishay Sfernice Thick Film Technology MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS Mechanical Protection Insulated case Resistance Range 0.24 to 1 M E24 series Substrate Alumina Standard Resistance Tolerances 1 %, 2 %, 5 %, 10 % Resistive Element Cermet Connections Tinned copper alloy Power Rating: Chassis Mounted 5 W to 50 W Unmounted 2 W to 5.5 W ENVIRONMENTAL SPECIFICATIONS Temperature Coeffi cient 150 ppm/C (R > 1 ) 6 Temperature Range - 55 C to + 125 C Insulation Resistance 10 M Climatic Category 55/125/56 Total Inductance 0.1 H PERFORMANCE TESTS CONDITIONS TYPICAL DRIFTS NF EN 140 000 CEI 115 1 Momentary Overload 2 P /5 s < (0.25 % + 0.05 ) r U < 2 UL s NF EN 140 000 125 C CEI 68215 Test Na Rapid Temperature Change 5 cycles < (0.25 % + 0.05 ) - 55 C to + 125 C NF EN 140 000 CEI 115 1 Load Life < (0.5 % + 0.05 ) 1000 h P at + 25 C r 56 days RH 95 % Humidity (Steady State) < (0.5 % + 0.05 ) MIL STD 202 Method 103 B and C RESISTANCE VALUE IN RELATION TO TOLERANCE AND TCR Resistance Value < 1 > 1 Standard 5 % Tolerances 10 % Standard TCR 250 ppm/C 150 ppm/C Tolerance on Request 1 % to 2 % SPECIAL FEATURES MODEL RCH 5 RCH 10 RCH 25 RCH 50 Power Rating-Chassis Mounted 5 W 10 W 25 W 50 W Power Rating-Unmounted 2 W 2.5 W 4 W 5.5 W Thermal Resistance R (j-c) 4.8 C/W 3.2 C/W 1.4 C/W 0.8 C/W TH Limiting Element Voltage (V ) 160 V 250 V 550 V 1285 V RMS Max. Overload Voltage (V ) 320 V 500 V 1100 V 2500 V RMS Dielectric Strength (V ) 50 Hz, 1 Min RMS 2000 V 2000 V 3500 V 3500 V MIL STD 202 Method 301 10 mA Max. Critical Resistance 5120 6250 12 100 33 024 Document Number: 50006 For technical questions, contact: sfer vishay.com www.vishay.com Revision: 09-Jun-08 2