Me V48b 4b 00008e4 337 GENERAL PURPOSE 2W TO 25 WATT CERAMIC ENCASED RESISTORS PW SERIES FEATURES Economical power resistors feature the industrys @ Low cost, fireproof construction widest resistance range, up to 100KQ! 7 avallabie on exclusive SWIFT: deters trate are RCD Series PW commercial-grade resistors provide highly @ 45% tolerance is standard (available to + 1%) reliable continuous operation, far superior to industry stan- Wide resistance range: .052 to 100KQ. dard. Welded cap/lead assembly results in reduced noise Improved TCR: +100 PPM Typ. levels and improved stability. Proprietary inorganic potting compound was developed for optimum thermal conductiv- SPECIAL MODIFICATIONS ity reducing hot spots commonly found in conventional @ STAND-OFFS (built into ceramic case): Option A designs. Construction is completely fireproof, and resistant @ STAND-OFFS (built into radial leads): Option LL to solvents. m NON-INDUCTIVE: Option X @ SURGE RESISTORS: Option P @ INCREASED WATTAGE: Option B DERATING CURVE @ FUSE RESISTORS: Option FF 100 BM POSITIVE T.C.s: Option T i @ MOISTURE SEAL: Option HC 5 75 a 50 bo 128 Tye. ee | rest < aw sow SN | 15W - bw c j pw E= = [>] 5 5 25 SN b 1.25 Typ. a}+ s| 032 + .008 = 0 x _ wa Ke } fo] 50 100 150 200 250 300 4 } wef AMBIENT TEMP. (C) 3g) bh To be RCD Wattage Max.** |. Max. DIMENSIONS (Numbers in brackets are mm) TEMPERATURE RISE AT 25C Type Opt.| Resis. |W tage A B c D 950 Pw25 Std. | 8 .04 [1.0] | +.032[.81] | +.05 [1.3] | +.025 [.64] Pw22 Pwe2 2| 3 | 100K 100 | 69[175} | 25,64) | 25,64) | 06[15] 225 PW15, 20 PW3 3] 5 | 100K 150 | 88 (22.4) | 31[ 7.9] 31[ 7.9] 061.5] 200 Pw10 stock PN Bea | Sa ST ARES OM] a5 pw7 PW7 7 { 10 27K 350 | 1.39[35.3] | .38[ 9.7] .35[ 8.9] .12[3.0] a PW5 Stock [FWH S00) BB ar. = mo eel | 425 PW2 PW15 15 | | 30K 540 | 1.88 [47.8] | .50[12.7] 50(12.7] 12[3.0] w pwza 120] | 4oK 600 | 250(635) | 50127] | so(127] | 12[3.0] = 100 Pw22 22) | 40K 650 | 2.50[63.5) | .50[12.7] 50(12.7] 12[3.0] ti 7 PW2s 25 | | 40K 700 | 2.50 [63.5] | .50(12.7] 50(12.7] .12[3.0] i 50 New ] PW25S 25 | 40K 650 | 2.35 [59.7] | 56[14.2] 56[14.2] N/A 25 ** Power film resistor element used to achieve high resistance values and non-inductive performance. 20 40 60 80 100 1 Max. voitage rating is determined by E = \/PR, E should not exceed the value listed. % OF RATED LOAD PERFORMANCE SPECIFICATIONS* Temp. 12 and above 100ppm typ., 300 ppm max. Coefticient | below 12 200 pm typ., 600 ppm max. Terminal Strength 5 Ibs. minimum Operating Temp. -55C to: __| +235 (2W-10W), +275C (15-250) HOW TO ORDER: Dielectric Strength 1000V PW10 X 1002 5% Short-time Overload 2.0% + .05 | Ty! Moisture Resistance 5.0% + .058 RED Type | High Temp. Exposure 2.0% + .052 oe ene dant) t Load Life (1000 hours) 5.0% + .052 Resistance (expressed in ohms) Temperature Cycling 3.0% + .05Q Tolerance (19%, 3%, 5%, 10%) Shock and Vibration 2.0% + 058 Note: RCD utilizes both wirewound and film elements in the construction of PW resis- *Consult factory for a detailed Engineering report. tors. Please specify at the time of ordering if a specific type is preferred. RCD Components, Inc., 520 East Industrial Park Dr., Manchester, NH USA 03109 Tel: (603) 669-0054 Fax: (603) 669-5455 31