SPW VISHAY

Document overview

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Technical content

Document Number: 31038 Revision 06-Sep-04 www.vishay.com 208 SPW Vishay Dale For Technical Questions, contact ff2aresistors@vishay.com 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 MARKING POWER RATING WATTAGE FREE AIR 120 RESISTANCE RANGE 50 ohm standard. Other values available on special order. Identification: Type designation resistance value, tolerance and code date of manufacture are printed on each unit. Terminations: All types electroplated copper except SPW-212. The SPW-212 has silver coated termination bands. 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. — DALE — Model — Value — Tolerance — Date code RESISTANCE TOLERANCE ± 2, ± 5 ± 2, ± 5 ± 2, ± 5 ± 2, ± 5 ± 2, ± 5 TEMPERATURE COEFFICIENT ± 200 average ± 250 maximum GLOBAL PART NUMBER INFORMATION New Global Part Numbering: SPW21050R00JSL (preferred part numbering format) S P W 2 1050 R00JSL Historical Part Number: SPW-210505% (will continue to be accepted) SPW-210 50 5% S51 HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING SPECIAL (see Standard Electrical Specification Table) R = Decimal 25R00 = 25Ω 600R0 = 600Ω G = ± 2% J = ± 5% K = ± 10% SL = Custom Package Blank = Standard (Dash Number) (up to 3 digits) From 1-999 as applicable MECHANICAL SPECIFICATIONS LINEARITY TOLERANCE ± 10 ± 10 ± 10 ± 10 ± 10 ppm/°CΩ%% HISTORICAL MODEL SPW-236 SPW-227 SPW-210 SPW-214 SPW-212 GLOBAL MODEL SPW236 SPW227 SPW210 SPW214 SPW212 P25°C W

www.vishay.com 209 SPW Vishay Dale Document Number: 31038 Revision 06-Sep-04 For Technical Questions, contact ff2aresistors@vishay.com LOAD TEMPERATURE RISE [Operation in Free Air] DIMENSIONS in inches [millimeters] * 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. 125 100 TEMPERATURE RISE PER 20 40 60 80 100 % OF RATED POWER GLOBAL MODEL SPW236 SPW227 SPW210 SPW214 SPW212* 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 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] 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] 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 A B Carbon Film Resistors, Special Purpose D

Document Number: 91000 www.vishay.com Revision: 18-Jul-08 1 Disclaimer Legal Disclaimer Notice Vishay 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 li ability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permit ted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purcha se, 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 medi cal, 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.