SG3, SG4 www.vishay.com Vishay Sfernice Cemented Wirewound Resistors FEATURES 3 W and 4 W at + 40 C Cemented protection Non flammability Industrial applications Low values available: 20 m available (for SG3) 100 m available (for SG4) Material categorization: For definitions of compliance please see www.vishay.com/doc 99912 DIMENSIONS in millimeters (max.) A max. 0.8 MODEL A L 25 min. L max. 25 min. 63 1 6 SG3 5 (5.2 for 0.2 )13 10 0.5 SG4 5.5 (5.8 for 0.5 ) 15.8 75 STANDARD ELECTRICAL SPECIFICATIONS RATED POWER LIMITING ELEMENT RESISTANCE RANGE TOLERANCE MODEL P VOLTAGE 40 C % W V SG3 0.02 to 3.3K 3 100 5 SG4 0.02 to 3.9K 4 125 5 MECHANICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS Mechanical Protection Cement SG3 SG4 Resistive Element Ni Cr wire Critical Resistance 3.3 k 3.9 k Connections Copper tinned Temperature Coefficient (typical) V < 0.1 300 ppm/C Temperature Coefficient (typical) V 0.1 150 ppm/C ENVIRONMENTAL SPECIFICATIONS Temperature Range - 55 C to + 250 C Climatic Category 55/250/21 PERFORMANCE TYPICAL VALUES TESTS CONDITIONS AND DRIFTS Short Time Overload 5 P during 5 s (1.5 % + 0.005 ) n Rapid Change of Temperature EN1400 CEI-115-1, - 55 C + 200 C 5 cycles (1 % + 0.005 ) Humidity EN60115-1, 56 days 93 % RH (1 % + 0.005 ) Load Life MIL-STD 202, method 108 P 1000h (5 % + 0.005 ) r Moisture Resistance MIL-STD 202 method 106 (1 % + 0.005 ) Vibration MIL-STD 202 method 204, Test 20 g, 10 Hz/2000 Hz (0.5 % + 0.005 ) Shock MIL-STD 202 method 213, Test C (0.5 % + 0.005 ) Revision: 05-Aug-13 Document Number: 50012 1 For technical questions, contact: sferfixedresistors vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000SG3, SG4 www.vishay.com Vishay Sfernice SPECIAL FEATURES Please consult Vishay Sfernice for other ohmic values and tolerances. POWER RATING TEMPERATURE RISE 100 300 240 80 180 60 120 40 60 20 0 0 0 1 2 3 4 5 6 7 0 40 80 120 160 200 240 260 RATED POWER IN W AMBIENT TEMPERATURE IN C MARKING GEKA trademark, model, style, nominal resistance (in ), tolerance (in %). Note: For low ohmic values, (< 0.1 ), quality of marking cannot be guaranteed. PACKAGING Tape and reel packaging by: - 1500 pieces SG3 - 1250 pieces SG4 ORDERING INFORMATION SG 3 330 5 % 150 ppm/C TR1500 e3 MODEL STYLE OHMIC VALUE TOLERANCE TEMPERATURE PACKAGING LEAD (Pb)-FREE 3 COEFFICIENT 4 300 ppm/C GLOBAL PART NUMBER INFORMATION S G 3 R 0300J R 1 8 GLOBAL SIZE OHMIC VALUE TOLERANCE PACKAGING SPECIAL MODEL SG 3 The first four digits are J = 5.0 % R17 = reel As applicable. 4 significant figures and the last 1250 pieces Example: AD7 digit specifies the number of zeros to follow. R designates R18 = reel decimal point. 1500 pieces R0300 = 0.03 m 2R870 = 2.87 1R200 = 1.2 10020 = 10 000 R3300 = 0.33 Revision: 05-Aug-13 Document Number: 50012 2 For technical questions, contact: sferfixedresistors vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 SG4 SG3 RATED POWER IN % HOT SPOT TEMPERATURE IN C