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.

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Description Datasheet Availability Pricing (IDR) 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
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Packaging
Product
Type
Caddock Metal Film Resistors - Through Hole 2M ohm 0.01% 5ppm
Datasheet
60Expected 29/10/2026
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 Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 25M Ohm .01% 5ppm 3/4W
Datasheet
250On Order
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 Metal Film Precision Resistors
Caddock Metal Film Resistors - Through Hole
Datasheet
50Expected 10/09/2026
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 Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
Lead-Time 18 Weeks
Min.: 1
Mult.: 1

USF300 10 kOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
Lead-Time 18 Weeks
Min.: 1
Mult.: 1

USF300 200 kOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
Lead-Time 18 Weeks
Min.: 1
Mult.: 1

USF300 2 MOhms 330 mW (1/3 W) 0.1 % 5 PPM / C - 40 C + 85 C 300 V 19.05 mm Radial Bulk Metal Film Resistors
Caddock Metal Film Resistors - Through Hole 10M ohm 0.01% 5ppm
Datasheet
Lead-Time 16 Weeks
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 Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1

USF300 2 MOhms 750 mW (3/4 W) 0.1 % 5 PPM / C - 40 C + 85 C 1.4 kV 38.1 mm Radial Bulk Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1

USF300 5 MOhms 750 mW (3/4 W) 0.1 % 5 PPM / C - 40 C + 85 C 1.4 kV 38.1 mm Radial Bulk Metal Film Precision Resistors Zero Nominal TC
Caddock Metal Film Resistors - Through Hole 9.99M ohm 0.01% 5ppm
Datasheet
Non-Stocked
Min.: 25
Mult.: 25

USF300 9.99 MOhms 750 mW (3/4 W) 0.01 % 5 PPM / C - 40 C + 85 C 1.4 kV 38.1 mm Radial Bulk Metal Film Resistors