USF300 Ultra-Stable Low TC Film Resistors

Caddock USF300 Ultra-Stable Low TC Film Resistors were developed for high-performance analog electronics. Utilizing Caddock proprietary resistance film systems, the Type USF300 resistors provide the lowest TC with a wide resistance range and high voltage ratings.The 300 series boasts a resistance range of 50Ω to 25MΩ with temperature coefficients from -40°C to +85°C (referenced to +25°C), and Zero Nominal TC (maximum absolute TC 5ppm/°C). The resistors' tolerance is ±0.01% or ±0.10%. The USF resistors are constructed with an aluminum oxide ceramic sandwich that provides great thermal conductivity and minimizes the power coefficient drift.

Results: 35
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (ARS) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Resistance
Power Rating
Tolerance
Temperature Coefficient
Minimum Operating Temperature
Maximum Operating Temperature
Voltage Rating
Length
Termination Style
Packaging
Product
Type
Caddock Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm
Datasheet
174In Stock
Min.: 1
Mult.: 1

USF300 1 MOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm
Datasheet
99In Stock
Min.: 1
Mult.: 1

USF300 1 MOhms 750 mW (3/4 W) 0.01 % 5 PPM / C - 40 C + 85 C 1.4 kV 38.1 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 100K ohm 0.01% 5ppm
Datasheet
233In Stock
Min.: 1
Mult.: 1

USF300 100 kOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
45In Stock
Min.: 1
Mult.: 1

USF300 2 MOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 10M ohm 0.01% 5ppm
Datasheet
386In Stock
Min.: 1
Mult.: 1

USF300 10 MOhms 750 mW (3/4 W) 0.01 % 5 PPM / C - 40 C + 85 C 1.4 kV 38.1 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
316In Stock
Min.: 1
Mult.: 1

USF300 10 MOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
250In Stock
Min.: 1
Mult.: 1

USF300 20 MOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 2M ohm 0.01% 5ppm
Datasheet
91In Stock
Min.: 1
Mult.: 1

USF300 2 MOhms 750 mW (3/4 W) 0.01 % 5 PPM / C - 40 C + 85 C 1.4 kV 38.1 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 20M ohm 0.01% 5ppm
Datasheet
145In Stock
Min.: 1
Mult.: 1

USF300 20 MOhms 750 mW (3/4 W) 0.01 % 5 PPM / C - 40 C + 85 C 2.5 kV 38.1 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
108In Stock
Min.: 1
Mult.: 1

USF300 20 MOhms 750 mW (3/4 W) 0.1 % 5 PPM / C - 40 C + 85 C 2.5 kV 38.1 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 25M Ohm .01% 5ppm 3/4W
Datasheet
50In Stock
Min.: 1
Mult.: 1

USF300 25 MOhms 750 mW (3/4 W) 0.01 % 5 PPM / C - 40 C + 85 C 2.5 kV 38.1 mm Radial Bulk Precision Metal Film Resistors
Caddock Metal Film Resistors - Through Hole
Datasheet
100In Stock
Min.: 1
Mult.: 1

USF300 25 MOhms 750 mW (3/4 W) 0.1 % 5 PPM / C - 40 C + 85 C 2.5 kV 38.1 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
4In Stock
50Expected 4/24/2026
Min.: 1
Mult.: 1

USF300 100 kOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 10K ohm 0.01% 5ppm
Datasheet
72In Stock
50Expected 3/30/2026
Min.: 1
Mult.: 1

USF300 10 kOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 10M ohm 0.01% 5ppm
Datasheet
27In Stock
100Expected 6/17/2026
Min.: 1
Mult.: 1

USF300 10 MOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
9In Stock
Min.: 1
Mult.: 1

USF300 1 MOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
38In Stock
Min.: 1
Mult.: 1

USF300 500 kOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
21In Stock
Min.: 1
Mult.: 1

USF300 50 kOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
53In Stock
Min.: 1
Mult.: 1

USF300 5 MOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
33In Stock
Min.: 1
Mult.: 1

USF300 20 kOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
3In Stock
100Expected 4/1/2026
Min.: 1
Mult.: 1

USF300 20 MOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
12In Stock
100Expected 3/31/2026
Min.: 1
Mult.: 1

USF300 200 kOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
20In Stock
Min.: 1
Mult.: 1

USF300 5 MOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
48In Stock
Min.: 1
Mult.: 1

USF300 50 kOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
68In Stock
Min.: 1
Mult.: 1

USF300 500 kOhms 330 mW (1/3 W) 0.01 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Precision Metal Film Resistors Zero Nominal TC