SPW

SPW Vishay Dale Carbon Film Resistors, Special Purpose High Frequency Load (Tubes) FEATURES • High stability and excellent high frequency characteristics • Particularly suited for high frequency applications involving high power, high accuracy RF measurements • Carbon film construction APPLICATIONS High frequency wattmeters for output measurement in radio, TV and radar transmitters, dielectric heating and similar RF generating equipment. Ideal for use as non-reactive radio frequency terminations. Special high power designs with internal water cooling are available. Contact factory. STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL HISTORICAL MODEL POWER RATING WATTAGE FREE AIR RESISTANCE TOLERANCE % ± 2, ± 5 ± 2, ± 5 ± 2, ± 5 ± 2, ± 5 ± 2, ± 5 LINEARITY TOLERANCE % ± 10 ± 10 ± 10 ± 10 ± 10 RESISTANCE RANGE TEMPERATURE COEFFICIENT ppm/°C ± 200 average ± 250 maximum P25°C SPW236 SPW227 SPW210 SPW214 SPW212 SPW-236 SPW-227 SPW-210 SPW-214 SPW-212 W 120 55 40 10 2 Ω 50 ohm standard. Other values available on special order. Cooling: Approximate increase in wattage when forced air cooling is employed is 3 times wattages shown and for liquid cooling (with heat exchanger) is 60 times wattages shown. The limiting factor insofar as the resistor is concerned is the film temperature. This should not exceed +200°C and for maximum stability should not exceed +150°C. MECHANICAL SPECIFICATIONS Identification: Type designation resistance value, tolerance and code date of manufacture are printed on each unit. All types electroplated copper except SPW-212. The SPW-212 has silver coated termination bands. Terminations: MARKING — DALE — Model — Value — Tolerance — Date code GLOBAL PART NUMBER INFORMATION New Global Part Numbering: SPW21050R00JSL (preferred part numbering format) S GLOBAL MODEL P W 2 1 0 5 0 R 0 0 J S L SPECIAL Blank = Standard (Dash Number) (up to 3 digits) From 1-999 as applicable RESISTANCE VALUE R = Decimal 25R00 = 25Ω 600R0 = 600Ω TOLERANCE CODE G = ± 2% J = ± 5% K = ± 10% PACKAGING SL = Custom Package (see Standard Electrical Specification Table) Historical Part Number: SPW-210505% (will continue to be accepted) SPW-210 HISTORICAL MODEL 50 RESISTANCE VALUE 5% TOLERANCE CODE S51 PACKAGING www.vishay.com 208 For Technical Questions, contact ff2aresistors@vishay.com Document Number: 31038 Revision 06-Sep-04 SPW Carbon Film Resistors, Special Purpose DIMENSIONS in inches [millimeters] Vishay Dale B A C D GLOBAL MODEL SPW236 SPW227 SPW210 SPW214 SPW212* A 18.0 ± 0.062 [457.20 ± 1.57] 12.0 ± 0.062 [304.80 ± 1.57] 12.0 ± 0.062 [304.80 ± 1.57] 5.0 ± 0.032 [127.0 ± 0.81] 2.0 ± 0.062 [50.80 ± 1.57] B 1.75 ± 0.025 [44.45 ± 0.64] 1.125 ± 0.025 [28.58 ± 0.64] 0.875 ± 0.010 [22.23 ± 0.25] 0.562 ± 0.006 [14.27 ± 0.81] 0.250 ± 0.006 [6.35 ± 0.15] C (O.D.) 1.0 ± 0.063 [25.40 ± 1.60] 0.500 ±0 .032 [12.70 ± 0.81] 0.625 ± 0.032 [15.88 ± 0.81] 0.500 ± 0.032 [12.70 ± 0.81] 0.250 ± 0.032 [6.35 ± 0.81] D (I.D.) 1.25 ± 0.025 [31.75 ± 0.64] 0.875 ± 0.020 [22.23 ± 0.51] 0.625 ± 0.020 [15.88 ± 0.51] 0.375 ± 0.013 [9.53 ± 0.33] Solid Rod * Representative types only. Consult factory for special requirements. Note: 1. C dimension may be varied on special order. 2. Wattage ratings do not allow for mounting hardware. TEMPERATURE RISE PER °C 125 100 75 50 25 0 20 40 60 80 100 % OF RATED POWER LOAD TEMPERATURE RISE [Operation in Free Air] Document Number: 31038 Revision 06-Sep-04 For Technical Questions, contact ff2aresistors@vishay.com www.vishay.com 209 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1