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 (JPY) 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 USF371-20.0M-0.1%-5PPM Caddock 1: ¥7,037.7 271In Stock	Mfr. Part # USF371-20.0M-0.1%-5PPM Mouser Part # 684-USF371-20M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	271In Stock	¥7,037.7 ¥5,348.4 ¥4,823.5 ¥4,763.7 View ¥4,591 ¥4,396.7 Quote	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 USF370-1.00M-0.1%-5PPM Caddock 1: ¥3,606 52In Stock	Mfr. Part # USF370-1.00M-0.1%-5PPM Mouser Part # 684-USF370-1M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	52In Stock	¥3,606 ¥3,129.3 ¥3,008.1 ¥2,935 View ¥2,878.5 ¥2,822 ¥2,788.8	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 100K ohm 0.01% 5ppm USF340-100K-0.01%-5PPM Caddock 1: ¥3,247.3 149In Stock	Mfr. Part # USF340-100K-0.01%-5PPM Mouser Part # 684-USF340-100K	Caddock	Metal Film Resistors - Through Hole 100K ohm 0.01% 5ppm Learn More about Caddock usf300	Datasheet	149In Stock	¥3,247.3 ¥2,755.6 ¥2,642.7 ¥2,641 View ¥2,469.9 ¥2,440	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 USF340-10.0M-0.1%-5PPM Caddock 1: ¥2,988.1 185In Stock 200Expected 10/19/2026	Mfr. Part # USF340-10.0M-0.1%-5PPM Mouser Part # 684-USF340-10M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	185In Stock 200Expected 10/19/2026	¥2,988.1 ¥2,521.4 ¥2,413.4 ¥2,350.3 View ¥2,300.5 ¥2,250.7 ¥2,220.8	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 USF340-20.0M-0.01%-5PPM Caddock 1: ¥4,798.6 112In Stock	Mfr. Part # USF340-20.0M-0.01%-5PPM Mouser Part # 684-USF34020.0M.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	112In Stock	¥4,798.6 ¥4,172.4 ¥4,027.9 ¥3,941.6 View ¥3,875.1 ¥3,808.7 ¥3,805.4	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: ¥3,441.6 154In Stock	Mfr. Part # USF340-500K-0.01%-5PPM Mouser Part # 684-USF340500K0.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	154In Stock	¥3,441.6 ¥2,921.7 ¥2,800.4 ¥2,730.7 View ¥2,674.2 ¥2,617.7 ¥2,586.2	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: ¥5,205.6 139In Stock 600On Order	Mfr. Part # USF370-10.0M-0.1%-5PPM Mouser Part # 684-USF370-10M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	139In Stock 600On Order On Order Ship Dates Mfr. #: USF370-10.0M-0.1%-5PPM Stock: 139 Can Ship Immediately On Order: 200 Expected 1/12/2027 400 Expected 2/22/2027 Factory Lead-Time: 20 Weeks	¥5,205.6 ¥4,531.2 ¥4,375.1 ¥4,283.7 View ¥4,212.3 ¥4,139.2 Quote	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: ¥6,012.8 70In Stock 100Expected 11/11/2026	Mfr. Part # USF370-1.00M-0.01%-5ppm Mouser Part # 684-USF370-1M	Caddock	Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm Learn More about Caddock usf300	Datasheet	70In Stock 100Expected 11/11/2026	¥6,012.8 ¥5,293.6 ¥5,127.5 ¥5,029.5 View ¥4,953.1 ¥4,875	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: ¥9,328.2 67In Stock	Mfr. Part # USF370-5.00M-0.01%-5ppm Mouser Part # 684-USF370-5M	Caddock	Metal Film Resistors - Through Hole 5M ohm 0.01% 5ppm Learn More about Caddock usf300	Datasheet	67In Stock	¥9,328.2 ¥7,597.4 ¥7,148.9 ¥7,147.3 View ¥6,463 ¥6,423.1 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: ¥8,461.1 140In Stock 150Expected 2/23/2027	Mfr. Part # USF371-25.0M-0.01%-5PPM Mouser Part # 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	¥8,461.1 ¥7,575.8 ¥7,371.5 ¥7,251.9 View ¥7,157.2 ¥7,148.9 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: ¥5,414.9 344In Stock	Mfr. Part # USF371-25.0M-0.1%-5PPM Mouser Part # 684-USF371-25M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	344In Stock	¥5,414.9 ¥4,725.5 ¥4,566.1 ¥4,564.4 View ¥4,396.7 Quote	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: ¥1,946.7 50In Stock	Mfr. Part # USF340-100K-0.1%-5PPM Mouser Part # 684-USF340-100K15PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	50In Stock	¥1,946.7 ¥1,594.6 ¥1,514.8 ¥1,465 View ¥1,428.5 ¥1,390.3 ¥1,365.3 ¥1,347.1	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: ¥2,946.6 44In Stock 100Expected 1/25/2027	Mfr. Part # USF340-10.0K-0.01%-5ppm Mouser Part # 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	¥2,946.6 ¥2,483.2 ¥2,376.9 ¥2,313.8 View ¥2,265.6 ¥2,215.8 ¥2,185.9	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 USF340-1.00M-0.1%-5PPM Caddock 1: ¥3,790.4 2In Stock 50Expected 1/4/2027	Mfr. Part # USF340-1.00M-0.1%-5PPM Mouser Part # 684-USF340-1M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	2In Stock 50Expected 1/4/2027	¥3,790.4 ¥2,366.9 ¥2,263.9 ¥2,200.8 View ¥2,154.3 ¥2,106.1 ¥2,077.9 Quote	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: ¥1,724.1 42In Stock	Mfr. Part # USF340-20.0K-0.1%-5PPM Mouser Part # 684-USF340-20K1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	42In Stock	¥1,724.1 ¥1,403.5 ¥1,330.5 ¥1,285.6 View ¥1,250.7 ¥1,215.9 ¥1,194.3 ¥1,174.3	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: ¥2,935 33In Stock 100Expected 2/8/2027	Mfr. Part # USF340-20.0M-0.1%-5PPM Mouser Part # 684-USF340-20M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	33In Stock 100Expected 2/8/2027	¥2,935 ¥2,473.2 ¥2,368.6 ¥2,305.5 View ¥2,205.8 ¥2,177.6	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: ¥2,008.1 49In Stock	Mfr. Part # USF340-500K-0.1%-5PPM Mouser Part # 684-USF340-500K15PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	49In Stock	¥2,008.1 ¥1,646.1 ¥1,563 ¥1,513.2 View ¥1,475 ¥1,436.8 ¥1,413.5 ¥1,395.2	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: ¥1,828.8 11In Stock	Mfr. Part # USF340-50.0K-0.1%-5PPM Mouser Part # 684-USF340-50K1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	11In Stock	¥1,828.8 ¥1,488.3 ¥1,410.2 ¥1,362 View ¥1,327.1 ¥1,288.9 ¥1,269 ¥1,250.7 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: ¥2,815.4 87In Stock	Mfr. Part # USF340-5.00M-0.1%-5PPM Mouser Part # 684-USF340-5M1%5PPM	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	87In Stock	¥2,815.4 ¥2,366.9 ¥2,263.9 ¥2,200.8 View ¥2,154.3 ¥2,106.1 ¥2,077.9 Quote	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: ¥4,596 10In Stock 50Expected 2/23/2027	Mfr. Part # USF340-2.00M-0.01%-5ppm Mouser Part # 684-USF3402.00M.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	10In Stock 50Expected 2/23/2027	¥4,596 ¥3,986.4 ¥3,845.2 ¥3,762.2 View ¥3,697.4 ¥3,630.9 ¥3,624.3	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: ¥2,946.6 23In Stock	Mfr. Part # USF340-20.0K-0.01%-5PPM Mouser Part # 684-USF34020.0K.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	23In Stock	¥2,946.6 ¥2,483.2 ¥2,376.9 ¥2,313.8 View ¥2,265.6 ¥2,215.8 ¥2,185.9	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: ¥2,946.6 45In Stock	Mfr. Part # USF340-50.0K-0.01%-5PPM Mouser Part # 684-USF34050.0K.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	45In Stock	¥2,946.6 ¥2,483.2 ¥2,376.9 ¥2,313.8 View ¥2,265.6 ¥2,215.8 ¥2,185.9	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 10M ohm 0.01% 5ppm USF340-10.0M-0.01%-5ppm Caddock 1: ¥5,086 348Expected 11/23/2026	Mfr. Part # USF340-10.0M-0.01%-5ppm Mouser Part # 684-USF340-10M	Caddock	Metal Film Resistors - Through Hole 10M ohm 0.01% 5ppm Learn More about Caddock usf300	Datasheet	348Expected 11/23/2026	¥5,086 ¥4,421.6 ¥4,268.8 ¥4,179.1 View ¥4,107.7 ¥4,036.2 ¥3,883.4	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 1M ohm 0.01% 5ppm USF340-1.00M-0.01%-5ppm Caddock 1: ¥4,871.7 438On Order	Mfr. Part # USF340-1.00M-0.01%-5ppm Mouser Part # 684-USF340-1M	Caddock	Metal Film Resistors - Through Hole 1M ohm 0.01% 5ppm Learn More about Caddock usf300	Datasheet	438On Order On Order Ship Dates Mfr. #: USF340-1.00M-0.01%-5ppm Stock: 0 On Order: 38 Expected 10/26/2026 100 Expected 10/29/2026 300 Expected 1/29/2027 Factory Lead-Time: 16 Weeks	¥4,871.7 ¥4,225.6 ¥4,076.1 ¥3,988.1 View ¥3,920 ¥3,850.2 ¥3,699	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 USF340-200K-0.01%-5PPM Caddock 1: ¥3,441.6 150On Order	Mfr. Part # USF340-200K-0.01%-5PPM Mouser Part # 684-USF340200K0.01%5	Caddock	Metal Film Resistors - Through Hole Learn More about Caddock usf300	Datasheet	150On Order On Order Ship Dates Mfr. #: USF340-200K-0.01%-5PPM Stock: 0 On Order: 50 Expected 1/4/2027 100 Expected 3/1/2027 Factory Lead-Time: 21 Weeks	¥3,441.6 ¥2,921.7 ¥2,800.4 ¥2,730.7 View ¥2,674.2 ¥2,617.7 ¥2,586.2	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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