® MP800 Series Kool-Pak Power Film Resistors TO-220 Style and TO-126 Style - Non-Inductive Designs Page 1 of 2 Use your thermal design experience with power semiconductors in TO-220 and TO-126 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design. MP820 and MP821 TO-220 Style Power Package with Metal Mounting Tab • 20 Watts at +25°C Case Temperature derated to zero at +175°C. • Metal Heat Sink Mounting Tab. • MP820 Resistance Range of 10.0 ohm to 10.0 K. • MP821 Resistance Range of 0.020 ohm to 9.99 ohm. • Resistor element is electrically isolated from the mounting surface. • Non-Inductive design for high speed switching, snubbers, MP821 Standard Resistance Values: and rf applications. Tolerance MP821: ±1% Standard (0.5%, 5%, and 20% are available for most resistance values). Construction of MP820 and MP821: 0.020 Ω 0.050 Ω 0.25 Ω 0.75 Ω 3.00 Ω 7.50 Ω 0.025 Ω 0.075 Ω 0.30 Ω 1.00 Ω 3.30 Ω 8.00 Ω The MP820 and MP821 Kool-Tab® Power Film Resistors are constructed with Caddock's 0.030 Ω 0.10 Ω 0.33 Ω 1.50 Ω 4.00 Ω Micronox® resistance film fired onto a flat ceramic substrate which is thermally bonded to 0.033 Ω 0.15 Ω 0.40 Ω 2.00 Ω 5.00 Ω 0.040 Ω 0.20 Ω 0.50 Ω 2.50 Ω the copper heat sink tab. The resistor body is then molded with a high temperature MP820 Standard Resistance Values: molding compound to finish the metal tab TO-220 package. The lead wire attachment and resistance element geometry are configured to provide outstanding non-inductive Tolerance MP820: ±1% Standard (0.5%, 5%, and 20% are available for most resistance values). performance. 10.0 Ω 30.0 Ω 75.0 Ω 300 Ω 750 Ω 3.30 K 12.0 Ω 33.0 Ω 100 Ω 330 Ω 1.00 K 4.00 K 15.0 Ω 40.0 Ω 120 Ω 400 Ω 1.50 K 5.00 K MP825 and MP850 Power Film Resistors 20.0 Ω 47.0 Ω 150 Ω 470 Ω 2.00 K 7.50 K 25.0 Ω 50.0 Ω 200 Ω 500 Ω 2.50 K 10.0 K Include an Integral Metal Mounting Surface 27.0 Ω 56.0 Ω 250 Ω 560 Ω 3.00 K for Highly Efficient Thermal Transfer MP825 TO-126 Style Power Package • 25 Watts at +25°C Case Temperature derated to zero at +150°C. • Copper Heat Sink Integral in the Molded Package. • Resistance Range of 0.020 ohm to 10.0 K. • Resistor element is electrically isolated from the mounting surface. • Non-inductive Design. MP850 TO-220 Style Power Package • 50 Watts at +25°C Case Temperature derated to zero at +150°C. • Copper Heat Sink Integral in the Molded Package. • Resistance Range of 0.20 ohm to 10.0 K. • Resistor element is electrically isolated from the mounting surface. MP825 Standard Resistance Values: • Non-inductive Design. Tolerance MP825: ±1% standard (except as noted), (0.5%, 5%, and 20% are available for most resistance values). Construction of MP825 and MP850: 0.020 Ω 5% 0.30 Ω 4.00 Ω 33.0 Ω 300 Ω 3.00 K 0.025 Ω 5% 0.33 Ω 5.00 Ω 40.0 Ω 330 Ω 3.30 K The MP825 and MP850 Kool-Pak® Power Film Resistors are constructed with Caddock's 0.030 Ω 5% 0.40 Ω 7.50 Ω 47.0 Ω 400 Ω 4.00 K Micronox® resistance film fired onto a flat ceramic substrate. The ceramic substrate is 00..003430 ΩΩ 55%% 00..5705 ΩΩ 81.00.00 ΩΩ 5506..00 ΩΩ 457000 ΩΩ 57..0500 KK bonded to a copper heat sink which becomes the metal mounting surface. This 0.050 Ω 1.00 Ω 12.0 Ω 75.0 Ω 560 Ω 10.0 K 0.075 Ω 1.50 Ω 15.0 Ω 100 Ω 750 Ω assembly is molded with the copper heat sink flush with the back surface of the part. The 0.10 Ω 2.00 Ω 20.0 Ω 120 Ω 1.00 K terminal attachment and resistance element geometry are configured to provide 0.15 Ω 2.50 Ω 25.0 Ω 150 Ω 1.50 K outstanding non-inductive performance. 00..2205 ΩΩ 33..0300 ΩΩ 2370..00 ΩΩ 220500 ΩΩ 22..0500 KK MP850 Standard Resistance Values: Ordering Information: MP850 - 50.0 - 1% Tolerance MP850: ±1% standard, (0.5%, 5%, and 20% are available for most resistance values). Model Number: Tolerance 0.20 Ω 2.00 Ω 12.0 Ω 50.0 Ω 330 Ω 2.50 K Resistor Value: 0.25 Ω 2.50 Ω 15.0 Ω 56.0 Ω 400 Ω 3.00 K 0.30 Ω 3.00 Ω 20.0 Ω 75.0 Ω 470 Ω 3.30 K Packaging: MP800 Series Resistors are packaged in plastic shipping tubes, 0.33 Ω 3.30 Ω 25.0 Ω 100 Ω 500 Ω 4.00 K 50 pieces per tube when the order quantity permits. 0.40 Ω 4.00 Ω 27.0 Ω 120 Ω 560 Ω 5.00 K 0.50 Ω 5.00 Ω 30.0 Ω 150 Ω 750 Ω 7.50 K 0.75 Ω 7.50 Ω 33.0 Ω 200 Ω 1.00 K 10.0 K For custom resistance values and tolerances contact applications engineering 1.00 Ω 8.00 Ω 40.0 Ω 250 Ω 1.50 K 1.50 Ω 10.0 Ω 47.0 Ω 300 Ω 2.00 K Certain products shown in this catalog are covered by one or more patents, there are also patents pending. Sales and Applications Engineering ELECTRONICS, INC. 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 e-mail: caddock@caddock.com • web: www.caddock.com Phone: (541) 496-0700 For Caddock Distributors listed by country see caddock.com/contact/dist.html Fax: (541) 496-0408 © 2003-2020 Caddock Electronics, Inc. 28_IL103.0420

Page 2 of 2 MNood.el Package MRine.sistancMeax. RPoatwinegr Mlataxg.Veo TFhilemrm (Ja)lR tRθoJe CCs aisstea n(Cc)e MaxT. MT A e Xmp. Dimensions Comments MP820 TO-220 Style 10.0 Ω 10.0 K 20 Watts* 300 7.50°C/Watt 175°C Figure 1 Metal Mounting Tab MP821 TO-220 Style 0.020 Ω 9.99 Ω 20 Watts* PLiomwiteerd 7.50°C/Watt 175°C Figure 1 Metal Mounting Tab MP825 TO-126 Style 0.020 Ω 10.0 K 25 Watts* 300 5.00°C/Watt 150°C Figure 2 Integrainl MMeotladle Mdo Puanctiknagg Seurface MP850 TO-220 Style 0.20 Ω 10.0 K 50 Watts* 300 2.50°C/Watt 150°C Figure 3 Integrainl MMeotladle Mdo Puanctiknagg Seurface Derating Curve Specifications: 100 G, % 80 * Derating Using Case Temperature (TC): Temperature Coefficient: RATIN 60 All power and associated overload ratings are derated TC referenced to +25°C, ∆R taken at TMAX POWER 2400 A B bTmahesetea cdl am uspoeou tnne tmcinapgse esra utetrufmarecpe eis,r wamtiutehrae tsh uuesr eipndag r att htp etrho depe ecrraelytni ntmegro couufn rttvehede. 50..0500 oohhmms t oa n4d.9 a9b oohvme,s -,2 -02 0to t o+ 5+08 0p ppmpm/°/C°C 0 and under electrical load. Without a heat sink, when in 0.050 ohm to 0.49 ohm, 0 to +200 ppm/°C 25 100 150 175 free air at +25°C, the MP820, MP821, and MP850 are 0.020 ohm to 0.049 ohm, 0 to +300 ppm/°C CASE TEMPERATURE, °C rated for 2.25 watts, the MP825 is rated for 1.25 watts. A - MP825 / MP850 Max. Temperature, TMax = 150°C Operating Temperature: -55°C to T B - MP820 / MP821 Max. Temperature, TMax = 175°C MAX The thermal design should satisfy the following equation: Inductance: 10nH typical in series when mea- Case Temperature (Tc) + [Thermal Resistance (RθJC) x power applied (Watts)] ≤ TMAX considering the full sured at a point 0.2 inches from the resistor body. operating temperature range of the application. Mounting Note: Mount on a smooth, clean and flat heat sink surface with a thermal interface material, such DWV: The dielectric strength rating of 1500 V AC rms as thermal grease. The entire exposed metal backface portion must be in thermal contact with the heat sink. is based upon connections made between When screw mounting, use a compression washer which provides a mounting force of 150 to 300 pounds terminals shorted and either the metal surface the (665 to 1330 N). This will provide sufficient pressure on the package over time and through large temperature variations to maintain the maximum power dissipation capability. Mounting torque to avoid package damage part is mounted to or a metal clip in contact with the is 8 in-lbs (0.90 N-m). If a spring clip is used, a clip force of 8 to 30 pounds (35 to 130 N) is recommended to top surface of the part. be applied to the center of the package. The clip should be round or smooth in the contact area to avoid concentrating the load on a small point of the plastic body of the package. Another mounting option is to use Insulation Resistance: 10,000 Megohms, min. a pressure bar method which can achieve a greater mounting force with a greater contact area. The resistor element is electrically isolated from For additional applications information regarding mounting and pulse handling see the Caddock the mounting surface. Applications Notes at caddock.com or contact Applications Engineering. Load Stability: 2,000 hours at rated power. .400 ±.010 .142 ±.003 .175 ±.015 ∆R ±(1.0 percent + 0.001 ohm) max. Power rating (10.16 ±.26) (3.61 ±.08) DIA. (4.45 ±.38) dependent upon case temperature. See derating .052 ±.003 CL (1.32 ±.08) curve. .240 ±.010 Figure 1 (6.10 ±.26) MP820 ( 2.1.9177 ±±..0080)3 ( 1 .45.8703 ±±..02160) MMoPm82e0n, taMrPy 8O21v,e rMloPa8d5:0: 2 times rated power with Metal Tab 50.0 applied voltage not to exceed 1.5 times maximum 1% TO-220 Style continuous operating voltage for 5 seconds. MP820 and MP821 ∆R ±(0.3 percent + 0.001 ohm) max. (1 3.5.7420 ±±1.0.0420) . 0(.3821 ±± ..01004) DIA. MP825: 1.5 times rated power with applied voltage not to exceed 1.5 times maximum .200 ±.010 .097 ±.010 (5.08 ±.26) (2.46 ±.26) continuous operating voltage for 5 seconds. ∆R ±(0.3 percent + 0.001 ohm) max. .094 ±.004 .320 ±.010 .110 ±.010 (2.39 ±.10) DIA. (8.12 ±.26) (2.79 ±.26) CL Moisture Resistance: Mil-Std-202, Method 106. Figure 2 + ∆R ±(0.5 percent + 0.001 ohm) max. .440 ±.010 TO-126 Style .080 ±.020 MP825 .115 ±.010 (11.18 ±.26) (2.03 ±.51) 0.10 Ω (2.92 ±.26) Thermal Shock: Mil-Std-202, Method 107, Cond. MP825 1% .053 ± .007 F. ∆R ±(0.3 percent + 0.001 ohm) max. .450 ±.050 (1.35 ± .18) (11.43 ±1.27) .030 ±.004 Shock: 100G, Mil-Std-202, Method 213, Cond. I. (.76 ± .10) .023 ± .004 ∆R ±(0.2 percent + 0.001 ohm) max. .200 ±.010 (.58 ±.10) (5.08 ±.26) .058 ±.007 (1.47 ±.18) Vibration, High Frequency: Mil-Std-202, Method .125 ±.004 .410 ±.010 204, Cond. D. ∆R ±(0.2 percent + 0.001 ohm) (3.18 ±.10) DIA. (10.41 ±.26) .125 ±.010 CL (3.18 ±.26) max. Figure 3 Terminal Strength: Mil-Std-202, Method 211, TO-220 Style (.132.158 ± ±.0.2160) (.1664.02 6± .±0.1206) Cond. A (Pull Test) 5 lbs. ∆R ±(0.2 percent .130 ±.030 MP850 + 0.001 ohm) max. MP850 (3.30 ±.76) 10.0 1% .053 ± .007 Terminal Material: Solderable (1.35 ± .18) (1.520.700 ± ±.015.207) .(0.7360 ±± ..01004) Measurement Note: For these specifications, (.250.008 ± ±.0.2160) .0(.2654 ±± ..1000)4 r0e.2si sintacnhc (e5 .m08e amsmur)e mfroemnt tshhea rlle sbies tomr abdoed ya.t a point .070 ±.010 DIMENSIONS IN INCHES AND (MILLIMETERS) (1.78 ±.26) Sales and Applications Engineering ELECTRONICS, INC. 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 e-mail: caddock@caddock.com • web: www.caddock.com Phone: (541) 496-0700 For Caddock Distributors listed by country see caddock.com/contact/dist.html Fax: (541) 496-0408 © 2003-2020 Caddock Electronics, Inc. 28_IL103.0420

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: C addock: MP820-40.0-1% MP850-3.30-1% MP820-500-1% MP850 8.00 1% MP820-681-1% MP821-0.033-1% MP820-200- 1% MP820-100-1% MP821-0.5-1% MP820-60-5% MP820-39.2-1% MP825-25.0-5% MP821-1.00-1% MP850-0.20- 1% MP820-56.0-1% MP825.10 1% MP850-0.50-1% MP850-1.00K-1% MP850-10.0-1% MP850-2.00-1% MP850- 200-1% MP850-25.0-1% MP850-5.00-1% MP850-50.0-1% MP850-500-1% MP850-75.0-1% MP850-0.75-1% MP850-20.0-1% MP821-3.00-1% MP850-100-5% MP820-15.0-1% MP821-4.00-1% MP821-0.020-1% MP821-0.050- 1% MP821-0.10-1% MP821-0.20-1% MP821-2.00-1% MP821-5.00-1% MP820-10.0-1% MP820-20.0-1% MP820- 25.0-1% MP820-50.0-1% MP820-75.0-1% MP820-1.00K-1% MP820-2.00K-1% MP820-5.00K-1% MP820-10.0K-1% MP825-0.020-5% MP825-12.0-1% MP850-1.90-1% MP820-1.5K-5% MP820-7.5K-1% MP820-220-5% MP821- 3.30-1% MP850-150.0-1% MP820-30.0-1% MP850-4.7-1% MP850-15.0-1% MP825-100-1% MP825-1.00K-1% MP821-0.025-1 MP825-2.50K-1% MP825-25.0-1% MP825-250-1% MP850-3.80-1% MP825-0.50-1% MP825-330- 1% MP825-5.00-1% MP850-33.0-1% MP825-10.0-1% MP820-1.50K-5% MP850-4.70-1% MP820-7.50K-1% MP820-60.0-5% MP821-0.40-1% MP850-150-1% MP820-680-1% MP821-.75-1% MP820-120-1% MP820-12.0-1% MP825-0.250-1% MP825-7.50K-1% MP825-33.0-1% MP850-1.00-1% MP820-150-1% MP825-50.0-1% MP850- 47.0-1% MP850-8.0-1% MP825.20.0-1% MP850-100-1% MP850-4.00-1% MP850-400-1% MP850-3.00-1% MP820-1.50 K-1% MP820-470-1% MP820-750-1% MP820-560-1% MP821-0.25-1% MP820-3.30 K-1% MP850-1.5- 1%