MP8x Series Kool-Pak Power Film Resistors

Caddock MP8x Series Kool-Pak® Power Film Resistors include an integral metal mounting surface for highly efficient thermal transfer. With a TO-220 style power package, the MP8x provides 25W/50W at +25ºC case temperature, derated to zero at +150ºC. Constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate, the substrate is bonded to a copper heat sink which becomes the metal mounting surface. The Caddock MP8x Series Kool-Pak Power Film Resistors offer a resistance range of 0.20ohm to 10.0K, non-inductive design.

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Qty. RoHS ECAD Model Series
Resistance
Power Rating
Tolerance
Temperature Coefficient
Minimum Operating Temperature
Maximum Operating Temperature
Voltage Rating
Length
Termination Style
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Height
Lead Diameter
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Type
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Caddock Thick Film Resistors - Through Hole 1K ohm 50W 1% TO-220 NON INDUCTIVE
Datasheet
418In Stock
Min.: 1
Mult.: 1

MP800 1 kOhms 50 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 10.41 mm Radial Tube 16.26 mm 0.64 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 3.18 mm
Caddock Thick Film Resistors - Through Hole 20 ohm 50W 1% TO-220 NON INDUCTIVE
Datasheet
691In Stock
Min.: 1
Mult.: 1

MP800 20 Ohms 50 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 10.41 mm Radial Tube 16.26 mm 0.64 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 3.18 mm
Caddock Thick Film Resistors - Through Hole 25 ohm 50W 1% TO-220 NON INDUCTIVE
Datasheet
823In Stock
1,150Expected 2026/12/21
Min.: 1
Mult.: 1

MP800 25 Ohms 50 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 10.41 mm Radial Tube 16.26 mm 0.64 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 3.18 mm
Caddock Thick Film Resistors - Through Hole 500 ohm 50W 1% TO-220 NON INDUCTIVE
Datasheet
253In Stock
Min.: 1
Mult.: 1

MP800 500 Ohms 50 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 10.41 mm Radial Tube 16.26 mm 0.64 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 3.18 mm
Caddock Thick Film Resistors - Through Hole 100 ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
167In Stock
250Expected 2026/09/18
Min.: 1
Mult.: 1

MP800 100 Ohms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 10K ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
90In Stock
Min.: 1
Mult.: 1

MP800 10 kOhms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 1K ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
47In Stock
Min.: 1
Mult.: 1

MP800 1 kOhms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 20 ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
22In Stock
Min.: 1
Mult.: 1

MP800 20 Ohms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 500 ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
41In Stock
150Expected 2026/09/18
Min.: 1
Mult.: 1

MP800 500 Ohms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 5K ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
101In Stock
Min.: 1
Mult.: 1

MP800 5 kOhms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 0.02 ohm 25W 5% TO-126 NON INDUCTIVE
Datasheet
42In Stock
Min.: 1
Mult.: 1
MP800 20 mOhms 25 W 5 % 0 PPM / C, 300 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.58 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole Power Film 100mOhms, 1%, 25W, 300V, TO-126 Style
Datasheet
61In Stock
Min.: 1
Mult.: 1

MP800 100 mOhms 25 W 1 % 0 PPM / C, 200 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole
Datasheet
52In Stock
Min.: 1
Mult.: 1

MP800 2 kOhms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole
Datasheet
50In Stock
Min.: 1
Mult.: 1

MP800 200 Ohms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole 5 ohm 25W 1% TO-126 NON INDUCTIVE
Datasheet
43In Stock
Min.: 1
Mult.: 1

MP800 5 Ohms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.58 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole
Datasheet
1In Stock
Min.: 1
Mult.: 1

MP800 5 kOhms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole Caddock
Datasheet
81In Stock
Min.: 1
Mult.: 1

MP800 50 Ohms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole
Datasheet
48In Stock
Min.: 1
Mult.: 1

MP800 75 Ohms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole 200 ohm 50W 1% TO-220 NON INDUCTIVE
Datasheet
135In Stock
Min.: 1
Mult.: 1

MP800 200 Ohms 50 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 10.41 mm Radial Tube 16.26 mm 0.64 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 3.18 mm
Caddock Thick Film Resistors - Through Hole 220 ohm 20W 5% TO-220 NON INDUCTIVE
Datasheet
2In Stock
Min.: 1
Mult.: 1

MP800 220 Ohms 20 W 5 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 470 ohms 20W 1% Tol Power Film Resistor
Datasheet
14In Stock
Min.: 1
Mult.: 1

MP800 470 Ohms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole 330 ohm 25W 1% TO-126 NON INDUCTIVE
Datasheet
17In Stock
Min.: 1
Mult.: 1

MP800 330 Ohms 25 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Bulk 11.18 mm 0.58 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm
Caddock Thick Film Resistors - Through Hole 5 ohm 50W 1% TO-220 NON INDUCTIVE
Datasheet
850Expected 2026/10/21
Min.: 1
Mult.: 1

MP800 5 Ohms 50 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 150 C 300 V 10.41 mm Radial Tube 16.26 mm 0.64 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 3.18 mm
Caddock Thick Film Resistors - Through Hole 25 ohm 20W 1% TO-220 NON INDUCTIVE
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 1
Mult.: 1

MP800 25 Ohms 20 W 1 % - 20 PPM / C, + 50 PPM / C - 55 C + 175 C 300 V 10.16 mm Radial Tube 14.73 mm 0.81 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 4.45 mm
Caddock Thick Film Resistors - Through Hole
Datasheet
Lead-Time 16 Weeks
Min.: 1
Mult.: 1

MP800 200 mOhms 25 W 1 % 0 PPM / C, 200 PPM / C - 55 C + 150 C 300 V 8.12 mm Radial Tube 11.18 mm 0.76 mm 5.08 mm Thick Film Resistors Leaded Kool-Pak Power Film Resistors, Non-Inductive Design 2.79 mm