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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Resistance	Power Rating	Tolerance	Temperature Coefficient	Minimum Operating Temperature	Maximum Operating Temperature	Voltage Rating	Length	Termination Style	Packaging	Product	Type
Metal Film Resistors - Through Hole USF340-10.0M-0.1%-5PPM Caddock 1: CHF 14.48 182In Stock 200Expected 10/19/2026	Mfr. Part No. USF340-10.0M-0.1%-5PPM Mouser Part No 684-USF340-10M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	182In Stock 200Expected 10/19/2026	CHF 14.48 CHF 12.21 CHF 11.70 CHF 11.39 View CHF 11.15 CHF 10.90 CHF 10.76	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF371-20.0M-0.1%-5PPM Caddock 1: CHF 34.11 275In Stock	Mfr. Part No. USF371-20.0M-0.1%-5PPM Mouser Part No 684-USF371-20M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	275In Stock	CHF 34.11 CHF 25.92 CHF 23.37 CHF 23.08 View CHF 22.25 CHF 21.30 CHF 19.77	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 100K ohm 0.01% 5ppm USF340-100K-0.01%-5PPM Caddock 1: CHF 15.73 149In 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 Learn More about Caddock usf300	Datasheet	149In Stock	CHF 15.73 CHF 13.36 CHF 12.80 CHF 11.97 CHF 11.82	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-20.0M-0.01%-5PPM Caddock 1: CHF 23.26 107In Stock	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 about Caddock usf300	Datasheet	107In Stock	CHF 23.26 CHF 20.22 CHF 19.52 CHF 19.10 View CHF 18.78 CHF 18.46 CHF 18.44	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-500K-0.01%-5PPM Caddock 1: CHF 16.68 154In Stock	Mfr. Part No. USF340-500K-0.01%-5PPM Mouser Part No 684-USF340500K0.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	154In Stock	CHF 16.68 CHF 14.16 CHF 13.57 CHF 13.24 View CHF 12.96 CHF 12.68 CHF 12.53	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF370-10.0M-0.1%-5PPM Caddock 1: CHF 25.23 136In Stock 600On 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 about Caddock usf300	Datasheet	136In Stock 600On Order On Order Ship Dates Mfr. No: USF370-10.0M-0.1%-5PPM Stock: 136 Can Dispatch Immediately On Order: 200 Expected 1/12/2027 400 Expected 2/22/2027 Factory Lead Time: 20 Weeks	CHF 25.23 CHF 21.96 CHF 21.20 CHF 21.19 View CHF 20.06 CHF 19.43	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm USF370-1.00M-0.01%-5ppm Caddock 1: CHF 29.14 69In Stock 100Expected 11/11/2026	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 about Caddock usf300	Datasheet	69In Stock 100Expected 11/11/2026	CHF 29.14 CHF 25.66 CHF 24.85 CHF 24.37 View CHF 24.01 CHF 23.62	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 5M ohm 0.01% 5ppm USF370-5.00M-0.01%-5ppm Caddock 1: CHF 45.21 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 Learn More about Caddock usf300	Datasheet	67In Stock	CHF 45.21 CHF 36.82 CHF 34.64 CHF 31.32 View CHF 31.13 Quote	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 25M Ohm .01% 5ppm 3/4W USF371-25.0M-0.01%-5PPM Caddock 1: CHF 41.01 140In Stock 150Expected 2/23/2027	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 about Caddock usf300	Datasheet	140In Stock 150Expected 2/23/2027	CHF 41.01 CHF 36.71 CHF 35.73 CHF 35.15 View CHF 34.69 CHF 34.64 Quote	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
Metal Film Resistors - Through Hole USF371-25.0M-0.1%-5PPM Caddock 1: CHF 26.25 344In Stock	Mfr. Part No. USF371-25.0M-0.1%-5PPM Mouser Part No 684-USF371-25M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	344In Stock	CHF 26.25 CHF 22.90 CHF 22.13 CHF 22.12 View CHF 21.30 CHF 19.79	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-100K-0.1%-5PPM Caddock 1: CHF 9.43 50In Stock	Mfr. Part No. USF340-100K-0.1%-5PPM Mouser Part No 684-USF340-100K15PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	50In Stock	CHF 9.43 CHF 7.73 CHF 7.34 CHF 7.10 View CHF 6.93 CHF 6.74 CHF 6.62 CHF 6.52	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 10K ohm 0.01% 5ppm USF340-10.0K-0.01%-5ppm Caddock 1: CHF 14.28 44In Stock 100Expected 1/25/2027	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 about Caddock usf300	Datasheet	44In Stock 100Expected 1/25/2027	CHF 14.28 CHF 12.04 CHF 11.52 CHF 11.21 View CHF 10.98 CHF 10.74 CHF 10.60	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm USF340-1.00M-0.01%-5ppm Caddock 1: CHF 23.61 40In Stock 400On 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 about Caddock usf300	Datasheet	40In Stock 400On Order On Order Ship Dates Mfr. No: USF340-1.00M-0.01%-5ppm Stock: 40 Can Dispatch Immediately On Order: 100 Expected 10/29/2026 300 Expected 1/29/2027 Factory Lead Time: 16 Weeks	CHF 23.61 CHF 20.48 CHF 19.75 CHF 19.33 View CHF 19.00 CHF 18.65 CHF 17.92	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-1.00M-0.1%-5PPM Caddock 1: CHF 18.37 2In Stock 50Expected 1/4/2027	Mfr. Part No. USF340-1.00M-0.1%-5PPM Mouser Part No 684-USF340-1M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	2In Stock 50Expected 1/4/2027	CHF 18.37 CHF 11.48 CHF 10.97 CHF 10.67 View CHF 10.44 CHF 10.20 CHF 10.07 CHF 10.03	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-20.0K-0.1%-5PPM Caddock 1: CHF 8.36 42In 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 about Caddock usf300	Datasheet	42In Stock	CHF 8.36 CHF 6.80 CHF 6.45 CHF 6.23 View CHF 6.07 CHF 5.90 CHF 5.78 CHF 5.69	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-20.0M-0.1%-5PPM Caddock 1: CHF 14.23 33In Stock 100Expected 2/8/2027	Mfr. Part No. USF340-20.0M-0.1%-5PPM Mouser Part No 684-USF340-20M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	33In Stock 100Expected 2/8/2027	CHF 14.23 CHF 11.99 CHF 11.48 CHF 11.18 View CHF 10.69 CHF 10.55	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-500K-0.1%-5PPM Caddock 1: CHF 9.73 49In Stock	Mfr. Part No. USF340-500K-0.1%-5PPM Mouser Part No 684-USF340-500K15PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	49In Stock	CHF 9.73 CHF 7.97 CHF 7.57 CHF 7.33 View CHF 7.15 CHF 6.96 CHF 6.85 CHF 6.76	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
Metal Film Resistors - Through Hole USF340-50.0K-0.1%-5PPM Caddock 1: CHF 8.86 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 about Caddock usf300	Datasheet	11In Stock	CHF 8.86 CHF 7.22 CHF 6.83 CHF 6.60 View CHF 6.43 CHF 6.24 CHF 6.15 CHF 6.07 Quote	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-5.00M-0.1%-5PPM Caddock 1: CHF 13.65 87In Stock	Mfr. Part No. USF340-5.00M-0.1%-5PPM Mouser Part No 684-USF340-5M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	87In Stock	CHF 13.65 CHF 11.48 CHF 10.97 CHF 10.67 View CHF 10.44 CHF 10.20 CHF 10.07 CHF 10.03	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-2.00M-0.01%-5ppm Caddock 1: CHF 22.28 10In Stock 50Expected 2/23/2027	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 about Caddock usf300	Datasheet	10In Stock 50Expected 2/23/2027	CHF 22.28 CHF 19.32 CHF 18.64 CHF 18.23 View CHF 17.92 CHF 17.60 CHF 17.57	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-20.0K-0.01%-5PPM Caddock 1: CHF 14.28 23In 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 about Caddock usf300	Datasheet	23In Stock	CHF 14.28 CHF 12.04 CHF 11.52 CHF 11.21 View CHF 10.98 CHF 10.74 CHF 10.60	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-50.0K-0.01%-5PPM Caddock 1: CHF 14.28 45In 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 about Caddock usf300	Datasheet	45In Stock	CHF 14.28 CHF 12.04 CHF 11.52 CHF 11.21 View CHF 10.98 CHF 10.74 CHF 10.60	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF370-1.00M-0.1%-5PPM Caddock 1: CHF 17.48 2In Stock	Mfr. Part No. USF370-1.00M-0.1%-5PPM Mouser Part No 684-USF370-1M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	2In Stock	CHF 17.48 CHF 15.16 CHF 14.57 CHF 14.23 View CHF 13.95 CHF 13.67 CHF 13.52	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole 10M ohm 0.01% 5ppm USF340-10.0M-0.01%-5ppm Caddock 1: CHF 24.64 348Expected 11/23/2026	Mfr. Part No. USF340-10.0M-0.01%-5ppm Mouser Part No 684-USF340-10M	Caddock	Metal Film Resistors - Through Hole 10M ohm 0.01% 5ppm Learn More about Caddock usf300	Datasheet	348Expected 11/23/2026	CHF 24.64 CHF 21.43 CHF 20.69 CHF 20.26 View CHF 19.91 CHF 19.56 CHF 18.81	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	Metal Film Precision Resistors	Zero Nominal TC
Metal Film Resistors - Through Hole USF340-200K-0.01%-5PPM Caddock 1: CHF 16.68 150On Order	Mfr. Part No. USF340-200K-0.01%-5PPM Mouser Part No 684-USF340200K0.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	150On Order On Order Ship Dates Mfr. No: USF340-200K-0.01%-5PPM Stock: 0 On Order: 50 Expected 1/4/2027 100 Expected 2/23/2027 Factory Lead Time: 21 Weeks	CHF 16.68 CHF 14.16 CHF 13.57 CHF 13.24 View CHF 12.96 CHF 12.68 CHF 12.53	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	Metal Film Precision Resistors	Zero Nominal TC

USF300 Ultra-Stable Low TC Film Resistors

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