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 (IDR) 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: Rp777.320 271In 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	271In Stock	Rp777.320 Rp590.741 Rp532.768 Rp526.163 View Rp507.083 Rp485.619 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: Rp398.292 52In 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	52In Stock	Rp398.292 Rp345.639 Rp332.246 Rp324.174 View Rp317.936 Rp311.699 Rp308.029	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: Rp358.664 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	Rp358.664 Rp304.360 Rp291.885 Rp291.701 View Rp272.805 Rp269.503	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: Rp330.045 185In Stock 200Expected 19/10/2026	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	185In Stock 200Expected 19/10/2026	Rp330.045 Rp278.492 Rp266.567 Rp259.596 View Rp254.092 Rp248.588 Rp245.286	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: Rp530.016 112In 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	112In Stock	Rp530.016 Rp460.852 Rp444.891 Rp435.351 View Rp428.012 Rp420.674 Rp420.307	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: Rp380.129 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	Rp380.129 Rp322.706 Rp309.314 Rp301.608 View Rp295.371 Rp289.133 Rp285.647	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: Rp574.964 139In 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	139In Stock 600On Order On Order Ship Dates Mfr. No: USF370-10.0M-0.1%-5PPM Stock: 139 Can Dispatch Immediately On Order: 200 Expected 12/01/2027 400 Expected 22/02/2027 Factory Lead Time: 20 Weeks	Rp574.964 Rp500.479 Rp483.234 Rp473.143 View Rp465.255 Rp457.182 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: Rp664.125 70In 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	70In Stock 100Expected 11/11/2026	Rp664.125 Rp584.687 Rp566.341 Rp555.517 View Rp547.078 Rp538.455	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: Rp1.030.311 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	Rp1.030.311 Rp839.146 Rp789.612 Rp789.428 View Rp713.843 Rp709.440 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: Rp934.545 140In Stock 150Expected 23/02/2027	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 23/02/2027	Rp934.545 Rp836.761 Rp814.195 Rp800.986 View Rp790.529 Rp789.612 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: Rp598.080 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	Rp598.080 Rp521.944 Rp504.332 Rp504.148 View Rp485.619 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: Rp215.015 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	Rp215.015 Rp176.122 Rp167.316 Rp161.812 View Rp157.776 Rp153.556 Rp150.804 Rp148.786	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: Rp325.458 44In Stock 100Expected 25/01/2027	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 25/01/2027	Rp325.458 Rp274.273 Rp262.531 Rp255.560 View Rp250.239 Rp244.736 Rp241.433	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: Rp418.656 2In Stock 50Expected 04/01/2027	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 04/01/2027	Rp418.656 Rp261.431 Rp250.056 Rp243.085 View Rp237.948 Rp232.627 Rp229.508 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: Rp190.431 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	Rp190.431 Rp155.024 Rp146.951 Rp141.998 View Rp138.145 Rp134.293 Rp131.908 Rp129.706	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: Rp324.174 33In Stock 100Expected 08/02/2027	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 08/02/2027	Rp324.174 Rp273.172 Rp261.614 Rp254.642 View Rp243.635 Rp240.516	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: Rp221.803 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	Rp221.803 Rp181.809 Rp172.636 Rp167.132 View Rp162.912 Rp158.693 Rp156.124 Rp154.106	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: Rp201.989 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	Rp201.989 Rp164.380 Rp155.758 Rp150.437 View Rp146.585 Rp142.365 Rp140.163 Rp138.145 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: Rp310.965 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	Rp310.965 Rp261.431 Rp250.056 Rp243.085 View Rp237.948 Rp232.627 Rp229.508 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: Rp507.634 10In Stock 50Expected 23/02/2027	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 23/02/2027	Rp507.634 Rp440.304 Rp424.710 Rp415.537 View Rp408.382 Rp401.044 Rp400.310	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: Rp325.458 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	Rp325.458 Rp274.273 Rp262.531 Rp255.560 View Rp250.239 Rp244.736 Rp241.433	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: Rp325.458 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	Rp325.458 Rp274.273 Rp262.531 Rp255.560 View Rp250.239 Rp244.736 Rp241.433	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: Rp561.755 348Expected 23/11/2026	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 23/11/2026	Rp561.755 Rp488.371 Rp471.492 Rp461.585 View Rp453.697 Rp445.808 Rp428.929	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: Rp538.088 440On 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	440On Order On Order Ship Dates Mfr. No: USF340-1.00M-0.01%-5ppm Stock: 0 On Order: 40 Expected 26/10/2026 100 Expected 29/10/2026 300 Expected 29/01/2027 Factory Lead Time: 16 Weeks	Rp538.088 Rp466.722 Rp450.211 Rp440.487 View Rp432.966 Rp425.260 Rp408.565	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: Rp380.129 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 04/01/2027 100 Expected 23/02/2027 Factory Lead Time: 21 Weeks	Rp380.129 Rp322.706 Rp309.314 Rp301.608 View Rp295.371 Rp289.133 Rp285.647	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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