HIGH POWER & HIGH VOLTAGE RESISTORS 2 WATT to 250 WATT, 15KV to 300KV SR SERIES RoHS Term.W is RoHS compliant & 260°C compatible Power ratings to 250 watts, voltages to 300KV Wide resistance range: 50KΩ to 5000MΩ Standard Tolerances: ±2, 5, 10, 20% Excellent temperature stability Excellent resistance to voltage pulses Ferrule terminals for clip mounting Industry’s highest power film resistors! RCD’s SR Series is designed for high voltage and/or high power applications. Film construction has extremely low reactance enabling superior high-frequency performance. Insulation is resistant to moisture, solvents, and oil mediums. →| H |← ← ↑ The combination of high power and high voltage provides new opportunities for design engineers to obtain the utmost in performance, without the need to assemble chains of resistors in series. Applications include X-ray equipment, electron microscopes, and TWT amplifiers. D ↓ RCD Type | | L Max. Working Voltage* Wattage @ 70°C** RESISTORSCAPACITORSCOILSDELAY LINES Critical Resistance Dimensions Resistance R an g e Inch [mm] L D H SR15 15K V 2.0 112MΩ 50KΩ to 500M 2.05 ±. 08 [52.1 ± 2] .512±.02 [13.0±.51] .275±.04 [7.0±1.01] SR20 20K V 3.0 133MΩ 50KΩ to 1000M 3.23 ± .08 [82 ± 2 ] .512±.02 [13.0±.51] .275±.04 [7.0±1.01] SR30 30K V 5.0 180MΩ 50KΩ to 2000M 3.94 ± .08 [100 ± 2] .748±.02 [19.0±.51] .394±.05 [10.0±1.27] SR60 60K V 10 360MΩ 50KΩ to 5000M 7.87 ± .08 [200 ± 2] .906±.02 [23.0±.51] .590±.05 [14.0±1.27] SR90 90K V 25 324MΩ 50KΩ to 5000M 11.02 ± .08 [280 ± 2] 1.18±.02 [30.0±.51] .787±.06 [20.0±1.52] SR120 120K V 50 288MΩ 50KΩ to 5000M 14.57 ± .08 [370 ± 2] 1.81±.02 [46.0±.51] .787±.06 [20.0±1.52] SR150 150K V 100 225MΩ 50KΩ to 5000M 18.50 ± .08 [470 ± 2] 1.81±.02 [46.0±.51] .984±.06 [25.0±1.52] SR200 200K V 150 267MΩ 100KΩ to 5000M 23.62 ± .12 [600 ± 3] 1.81±.02 [46.0±.51] .984±.06 [25.0±1.52] SR250 250K V 200 312MΩ 100KΩ to 5000M 31.50 ± .12 [800 ± 3] 2.12±.02 [53.8±.51] 1.26±.08 [32.0±1.52] SR300 300K V 250 360MΩ 100KΩ to 5000M 39.37 ± .12 [1000 ± 3] 2.12±.02 [53.8±.51] 1.26±.08 [32.0±1.52] * Maximum working voltage determined by E= PR below the critical resistance value. ** Increased wattage ratings up to double the standard are available, consult factory. 45 PERFORMANCE CHARACTERISTICS Wattage Derating (linear) ° 45 ← ° → ←W Full power @ 70°C to zero @ 125°C Temperature Range -25°C to + 125°C Temperature Coefficient 300 ppm/°C Typ. Short-Time Overload* ±2.5% Max. ∆R 1000 Hour Load Life (in oil) ±5.0% Max. ∆R Dielectric Strength ±1.0% Max. ∆R D→ MOUNTING CLIPS R H t * 2.5x rated wattage (not to exceed 1.5x max. working voltage) for 5 seconds. ← L → M (Dimensions given are nominal in inches) P/N DESIGNATION: SR90 - 107 - K B W For use on Type R D L H M t W RCD Type 3-Digit Resis. Code: 2 signif. digits & multiplier eg. 503= 50KΩ, 104=100KΩ, 105=1MΩ, 106=10MΩ, 107=100MΩ, 108=1000MΩ (1GΩ), etc. SR15, SR20 .24 .24 .51 .67 .125 .02 .04 SR30 .36 .40 .63 1.00 .165 .03 .06 SR60 .44 .59 .71 1.25 .165 .04 .06 Tolerance Code: F=1%, G=2%, J=5%, K=10%, M=20% Packaging: B = Bulk (only) Termination: W= Lead-free SR90 .57 .71 .95 1.54 .256 .04 .06 SR120, SR150, SR200 .89 .79 1.42 2.36 .256 .06 .08 SR250, SR300 1.04 .98 1.77 2.75 .256 .06 .08 RCD Components Inc, 520 E.Industrial Park Dr, Manchester, NH, USA 03109 rcdcomponents.com Tel: 603-669-0054 Fax: 603-669-5455 Email:[email protected] FA103 Sale of this product is in accordance with GF-061. Specifications subject to change without notice. 70