Metal Film Resistors - Through Hole

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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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Part #

Metal Film Resistors - Through Hole

USF340-20.0M-0.01%-5PPM
Caddock
1: HK$318.03
24In Stock
100Expected 14/8/2026

Mfr. Part No.
USF340-20.0M-0.01%-5PPM

Mouser Part No
684-USF34020.0M.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

24In Stock

100Expected 14/8/2026

HK$318.03

HK$247.75

HK$222.43

HK$195.06

View

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

Metal Film Resistors - Through Hole 100K ohm 0.01% 5ppm

USF340-100K-0.01%-5PPM
Caddock
1: HK$160.70
175In Stock

Mfr. Part No.
USF340-100K-0.01%-5PPM

Mouser Part No
684-USF340-100K

Caddock

Metal Film Resistors - Through Hole 100K ohm 0.01% 5ppm

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Datasheet

175In Stock

HK$160.70

HK$136.37

HK$130.78

HK$127.49

View

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

Metal Film Resistors - Through Hole

USF340-20.0M-0.1%-5PPM
Caddock
1: HK$145.25
233In Stock

Mfr. Part No.
USF340-20.0M-0.1%-5PPM

Mouser Part No
684-USF340-20M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

233In Stock

HK$145.25

HK$122.40

HK$117.22

HK$117.14

View

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

Metal Film Resistors - Through Hole 5M ohm 0.01% 5ppm

USF370-5.00M-0.01%-5ppm
Caddock
1: HK$461.64
67In Stock

Mfr. Part No.
USF370-5.00M-0.01%-5ppm

Mouser Part No
684-USF370-5M

Caddock

Metal Film Resistors - Through Hole 5M ohm 0.01% 5ppm

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Datasheet

67In Stock

HK$461.64

HK$376.23

HK$364.47

HK$352.64

View

Min.: 1
Mult.: 1

USF300

5 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

Metal Film Resistors - Through Hole

USF340-100K-0.1%-5PPM
Caddock
1: HK$96.34
50In Stock

Mfr. Part No.
USF340-100K-0.1%-5PPM

Mouser Part No
684-USF340-100K15PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

50In Stock

HK$96.34

HK$78.91

HK$74.97

HK$72.50

View

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

Metal Film Resistors - Through Hole 10K ohm 0.01% 5ppm

USF340-10.0K-0.01%-5ppm
Caddock
1: HK$145.82
71In Stock

Mfr. Part No.
USF340-10.0K-0.01%-5ppm

Mouser Part No
684-USF340-10K

Caddock

Metal Film Resistors - Through Hole 10K ohm 0.01% 5ppm

Learn More

Datasheet

71In Stock

HK$145.82

HK$122.89

HK$117.63

HK$114.50

View

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

Metal Film Resistors - Through Hole

USF340-1.00M-0.1%-5PPM
Caddock
1: HK$167.19
3In Stock

Mfr. Part No.
USF340-1.00M-0.1%-5PPM

Mouser Part No
684-USF340-1M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

3In Stock

HK$167.19

HK$117.14

HK$112.04

HK$108.92

View

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

Metal Film Resistors - Through Hole

USF340-20.0K-0.1%-5PPM
Caddock
1: HK$85.32
50In Stock

Mfr. Part No.
USF340-20.0K-0.1%-5PPM

Mouser Part No
684-USF340-20K1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

50In Stock

HK$85.32

HK$69.46

HK$65.84

HK$63.62

View

Min.: 1
Mult.: 1

USF300

20 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

Metal Film Resistors - Through Hole

USF340-50.0K-0.1%-5PPM
Caddock
1: HK$90.50
11In Stock

Mfr. Part No.
USF340-50.0K-0.1%-5PPM

Mouser Part No
684-USF340-50K1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

11In Stock

HK$90.50

HK$73.65

HK$69.79

HK$67.40

View

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

Metal Film Resistors - Through Hole

USF340-5.00M-0.1%-5PPM
Caddock
1: HK$139.33
38In Stock
50Expected 14/10/2026

Mfr. Part No.
USF340-5.00M-0.1%-5PPM

Mouser Part No
684-USF340-5M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

38In Stock

50Expected 14/10/2026

HK$139.33

HK$117.14

HK$112.04

HK$108.92

View

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

Metal Film Resistors - Through Hole

USF340-2.00M-0.01%-5ppm
Caddock
1: HK$227.45
30In Stock

Mfr. Part No.
USF340-2.00M-0.01%-5ppm

Mouser Part No
684-USF3402.00M.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

30In Stock

HK$227.45

HK$197.28

HK$190.29

HK$183.14

View

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

Metal Film Resistors - Through Hole

USF340-20.0K-0.01%-5PPM
Caddock
1: HK$136.86
27In Stock

Mfr. Part No.
USF340-20.0K-0.01%-5PPM

Mouser Part No
684-USF34020.0K.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

27In Stock

HK$136.86

HK$125.36

HK$120.01

HK$110.56

View

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

Metal Film Resistors - Through Hole

USF340-200K-0.01%-5PPM
Caddock
1: HK$160.70
29In Stock

Mfr. Part No.
USF340-200K-0.01%-5PPM

Mouser Part No
684-USF340200K0.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

29In Stock

HK$160.70

HK$136.37

HK$130.78

HK$127.49

View

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

Metal Film Resistors - Through Hole

USF340-5.00M-0.01%-5PPM
Caddock
1: HK$301.76
57In Stock

Mfr. Part No.
USF340-5.00M-0.01%-5PPM

Mouser Part No
684-USF3405.00M.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

57In Stock

HK$301.76

HK$236.57

HK$211.99

HK$209.28

View

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

Metal Film Resistors - Through Hole

USF340-50.0K-0.01%-5PPM
Caddock
1: HK$141.22
46In Stock

Mfr. Part No.
USF340-50.0K-0.01%-5PPM

Mouser Part No
684-USF34050.0K.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

46In Stock

HK$141.22

HK$119.11

HK$113.93

HK$110.48

View

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

Metal Film Resistors - Through Hole

USF340-500K-0.01%-5PPM
Caddock
1: HK$160.70
16In Stock
150Expected 11/8/2026

Mfr. Part No.
USF340-500K-0.01%-5PPM

Mouser Part No
684-USF340500K0.01%5

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

16In Stock

150Expected 11/8/2026

HK$160.70

HK$136.37

HK$130.78

HK$127.49

View

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

Metal Film Resistors - Through Hole

USF370-10.0M-0.1%-5PPM
Caddock
1: HK$242.98
9In Stock
450On Order

Mfr. Part No.
USF370-10.0M-0.1%-5PPM

Mouser Part No
684-USF370-10M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

9In Stock

450On Order

HK$242.98

HK$211.50

HK$204.27

HK$199.99

View

Min.: 1
Mult.: 1

USF300

10 MOhms

750 mW (3/4 W)

0.1 %

5 PPM / C

- 40 C

+ 85 C

1.4 kV

38.1 mm

Radial

Bulk

Precision Metal Film Resistors

Zero Nominal TC

Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm

USF370-1.00M-0.01%-5ppm
Caddock
1: HK$297.56
20In Stock
150On Order

Mfr. Part No.
USF370-1.00M-0.01%-5ppm

Mouser Part No
684-USF370-1M

Caddock

Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm

Learn More

Datasheet

20In Stock

150On Order

HK$297.56

HK$261.97

HK$261.89

HK$245.12

HK$241.26

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

Metal Film Resistors - Through Hole

USF370-1.00M-0.1%-5PPM
Caddock
1: HK$181.09
2In Stock
50Expected 23/9/2026

Mfr. Part No.
USF370-1.00M-0.1%-5PPM

Mouser Part No
684-USF370-1M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

2In Stock

50Expected 23/9/2026

HK$181.09

HK$154.86

HK$148.86

HK$145.25

View

Min.: 1
Mult.: 1

USF300

1 MOhms

750 mW (3/4 W)

0.1 %

5 PPM / C

- 40 C

+ 85 C

1.4 kV

38.1 mm

Radial

Bulk

Precision Metal Film Resistors

Zero Nominal TC

Metal Film Resistors - Through Hole

USF340-10.0M-0.1%-5PPM
Caddock
1: HK$212.40
450On Order

Mfr. Part No.
USF340-10.0M-0.1%-5PPM

Mouser Part No
684-USF340-10M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

450On Order

HK$212.40

HK$151.17

HK$134.64

HK$120.92

View

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

Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm

USF340-1.00M-0.01%-5ppm
Caddock
1: HK$227.45
248On Order

Mfr. Part No.
USF340-1.00M-0.01%-5ppm

Mouser Part No
684-USF340-1M

Caddock

Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm

Learn More

Datasheet

248On Order

HK$227.45

HK$197.28

HK$190.29

HK$186.18

View

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

Metal Film Resistors - Through Hole 2M ohm 0.01% 5ppm

USF370-2.00M-0.01%-5ppm
Caddock
1: HK$362.91
60Expected 29/10/2026

Mfr. Part No.
USF370-2.00M-0.01%-5ppm

Mouser Part No
684-USF370-2M

Caddock

Metal Film Resistors - Through Hole 2M ohm 0.01% 5ppm

Learn More

Datasheet

60Expected 29/10/2026

HK$362.91

HK$322.72

HK$313.43

HK$308.00

View

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

Metal Film Resistors - Through Hole 20M ohm 0.01% 5ppm

USF371-20.0M-0.01%-5ppm
Caddock
1: HK$563.48
38Expected 14/8/2026

Mfr. Part No.
USF371-20.0M-0.01%-5ppm

Mouser Part No
684-USF371-20M

Caddock

Metal Film Resistors - Through Hole 20M ohm 0.01% 5ppm

Learn More

Datasheet

38Expected 14/8/2026

HK$563.48

HK$433.52

HK$393.66

HK$367.27

View

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

Metal Film Resistors - Through Hole

USF371-20.0M-0.1%-5PPM
Caddock
1: HK$252.85
320On Order

Mfr. Part No.
USF371-20.0M-0.1%-5PPM

Mouser Part No
684-USF371-20M1%5PPM

Caddock

Metal Film Resistors - Through Hole

Learn More

Datasheet

320On Order

HK$252.85

HK$220.62

HK$213.14

HK$208.79

View

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

Metal Film Resistors - Through Hole 25M Ohm .01% 5ppm 3/4W

USF371-25.0M-0.01%-5PPM
Caddock
1: HK$418.73
250On Order

Mfr. Part No.
USF371-25.0M-0.01%-5PPM

Mouser Part No
684-USF371-25M

Caddock

Metal Film Resistors - Through Hole 25M Ohm .01% 5ppm 3/4W

Learn More

Datasheet

250On Order

HK$418.73

HK$374.91

HK$364.80

HK$358.89

View

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

USF300 Ultra-Stable Low TC Film Resistors

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