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| Type MS Power Film Resistors Page 1 of 2 Power Film Resistor Family with Wide Resistance Range and +275C Maximum Temperature With power ratings to 22 Watts and voltage ratings as high as 6,000 volts in an axial-lead resistor with values to 30 Megohms, the Type MS Power Film Resistors deliver the performance capabilities that can simplify circuit design and reduce equipment cost and complexity. Type MS Power Film Resistors provide all these features in a single resistor: * Full power and voltage ratings, without derating: * Higher voltage ratings without the limitations of minimum * Excellent long-term stability. wire size and spacing. Tests demonstrate typical stability of 0.05% per 1,000 hours over extended life. - for non-inductive performance. - for high resistance values that extend the critical resistance value up to 10 times. Micronox(R) Resistance Films Type MS performance begins with Caddock's Micronox(R) resistance films. Produced exclusively by Caddock Electronics, these proven complex oxide films have been used reliably for over 30 years in Caddock's precision power resistor products. Micronox (R) resistance films are fired directly onto a ceramic core at temperatures above 1400F (760C). These resistance films have demonstrated outstanding stability when exposed to a high ambient temperature, thermal shock and high power densities. This unique approach to precision power resistors opens new design possibilities by providing a wider resistance range, precise temperature characteristics, and higher temperature and power handling capability. N Caddock's Non-Inductive Design The Serpentine Pattern used in this patented product contain features which enhance high stability in High-Power Resistor applications. Most models are manufactured with Caddock's Non-Inductive serpentine resistive pattern that provides for neighboring lines to carry current in opposite directions, thereby achieving maximum cancellation of flux fields over the entire length of the resistor. This efficient non-inductive construction is accomplished without derating of any performance advantages. The result is a truly non-inductive resistor that is about as inductive as a straight piece of wire the length of the resistor body. This efficient design means faster settling times and minimum distortion in all types of high frequency circuits. Carefully Controlled Manufacturing and Test Procedures Assure Compliance with Strict Quality Control Requirements. Manufacturing Control Type MS Resistors are produced under intensive manufacturing controls with processes which include power conditioning, overvoltage conditioning, and maximum temperature conditioning. Reliability Verification Type MS resistors are included in the Caddock Reliability Testing Program. Conformance to specification parameters including Extended Life, Shock, Vibration, and Humidity are verified on a periodic basis. Data from Type MS resistors can be compared by similarity to other Caddock resistor types, since Type ML, MM, MS, MP, MG, and MK represent an identical combination of materials - aluminum oxide substrate, Micronox(R) resistance film, and silicone insulating coating. Quality Control From the certification and testing of all materials, to the supervision of manufacturing processes, all Caddock Type MS Power Film Resistors are produced under procedures that have been approved for conformance to the requirements of Mil-I-45208 in many recent surveys as described on page 8. Certain products shown in this catalog are covered by one or more patents, there are also patents pending. Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 (c) 2004 Caddock Electronics, Inc. CADDOCK e-mail: caddock@caddock.com * web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 28_IL108.1004 Type MS Power Film Resistors Page 2 of 2 MS 126, MS150 MS 151, MS175 MS 176, MS210 MS 214 MS 220 MS 221 MS 223 MS 244 MS 245 MS 260 MS 281 MS 310 Construction: The Type MS Power Film Resistor is constructed with Micronox(R) resistance films bonded to a high strength solid ceramic core. Nickel alloy end caps and axial leads complete the assembly. Encapsulation is provided by a high temperature silicone conformal coating. Type MS: Lead material is Nickel Clad Copper with thin Gold Plate, solderable. For welding applications, optional pure nickel leads are available on Models MS126, MS150, MS151, MS175, MS176, MS210. Contact Caddock Applications Engineering. MS 313, MS315 MS 322 Model No. WattWattMax. Dielect. age at age at Voltage Strength +25C +125C Resistance Min. Dimensions in inches and (millimeters) Max. A B C Specifications: MS 126 MS 150 MS 151 MS 175 MS 176 0.25 0.50 0.50 0.75 0.75 0.25 0.30 0.50 0.45 0.75 0.60 0.60 1.2 1.8 1.8 2.4 2.4 3.6 4.8 6.0 7.5 9.0 200 500 500 750 750 750 20 20 20 20 45 1 Meg 2K 2 Meg 2K 5 Meg * * * 300 500 MS 210 1.0 750 45 3K MS 214 1.0 500 750 45 5 Meg MS 220 2.0 1,000 800 20 10 Meg MS 221 3.0 1,000 800 45 10 Meg MS 223 3.0 800 1,000 20 4 Meg MS 244 4.0 2,000 1,000 45 15 Meg MS 245 4.0 800 1,000 20 6 Meg MS 260 6.0 2,000 1,000 45 15 Meg MS 281 8.0 2,000 1,000 45 8 Meg MS 310 10.0 4,500 1,000 45 20 Meg MS 313 12.5 6,000 1,000 50 30 Meg MS 315 15.0 MS 322 22.0 13.2 by power rating. * Limited Models with low inductance construction are in shaded areas. * * 1,000 50 1 Meg 1,000 100 1.5 Meg .188 .020 (4.78 .51) .188 .020 (4.78 .51) .250 .020 (6.35 .51) .250 .020 (6.35 .51) .313 .020 (7.95 .51) .313 .020 (7.95 .51) .313 .030 (7.95 .76) .400 .060 (10.16 1.52) .575 .050 (14.61 1.27) .480 .060 (12.19 1.52) .950 .060 (24.13 1.52) .570 .060 (14.48 1.52) .970 .060 (24.64 1.52) .910 .060 (23.11 1.52) 1.250 .070 (31.75 1.78) 2.000 .080 (50.80 2.03) 2.000 .080 (50.80 2.03) 3.000 .090 (76.20 2.29) .070 .015 (1.78 .38) .070 .015 (1.78 .38) .094 .015 (2.39 .38) .094 .015 (2.39 .38) .094 .015 (2.39 .38) .094 .015 (2.39 .38) .109 .025 (2.77 .64) .140 .030 (3.56 .76) .165 .030 (4.19 .76) .230 .030 (5.84 .76) .230 .030 (5.84 .76) .300 .030 (7.62 .76) .300 .030 (7.62 .76) .350 .040 (8.89 1.02) .350 .040 (8.89 1.02) .350 .040 (8.89 1.02) .350 .040 (8.89 1.02) .350 .040 (8.89 1.02) .020 (.51 .020 (.51 .025 (.64 .025 (.64 .025 (.64 .025 (.64 .025 (.64 .025 (.64 .032 (.81 .040 (1.02 .040 (1.02 .040 (1.02 .040 (1.02 .040 (1.02 .040 (1.02 .040 (1.02 .040 (1.02 .040 (1.02 .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) .002 .05) Resistance Tolerance: 1% (tolerances to 0.1% on special order). Temperature Coefficient: 50 ppm/C. TC referenced to +25C, R taken at -15C and +105C. Insulation Resistance: 10,000 Megohms, min. Overload/Overvoltage: 5 times rated power with applied voltage not to exceed 1.5 times maximum continuous operating voltage for 5 seconds. R 0.5% max. or 0.5 ohm max., whichever is greater. Thermal Shock: Mil-Std-202, Method 107, Cond. C, R 0.5% max. or 0.5 ohm max., whichever is greater. Moisture Resistance: Mil-Std-202, Method 106, R 0.5% max. or 0.5 ohm max., whichever is greater. Load Life: 1,000 hours at rated power at +25C or +125C (see derating curve), not to exceed rated voltage, R 0.5% max. or 0.5 ohm max., whichever is greater. Maximum Operating Temperature: +275C. Encapsulation: High Temperature Silicone Conformal. 1.500 .125 (38.10 3.18) A B C DIMENSIONS IN INCHES AND (MILLIMETERS) Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas. Derating Curve: RATED POWER OR RATED VOLTAGE, % 100 80 60 40 20 0 25 75 Ordering Information: Model Number: MS220 -100K - 1% A B A - all MS models except MS 126, MS 151, MS 176 B - MS 126, MS151, MS 176 Tolerance Resistor Value: Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 (c) 2004 Caddock Electronics, Inc. CADDOCK AMBIENT TEMPERATURE, C 125 175 225 275 e-mail: caddock@caddock.com * web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 28_IL108.1004 |
Price & Availability of MS151
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