Caddock USF371 Series

  • Caddock

Product Features

  • Ultra-stable radial leaded film through-hole resistors
  • Maximum working voltage of 2.5kV
  • Ceramic package provides cool operation
  • Utilising Caddock’s proprietary resistance film systems
  • Available in standard resistance values most commonly used in precision analog design
  • Zero nominal TCR
  • Operating temperature range from -40°C up to +85°C

Applications

Description

The USF371 series from Caddock are ultra-stable low temperature coefficient (TCR) film resistors, with a resistance range of between 19.8MΩ and 25MΩ, low TCR of ±5 ppm/°C and with a tolerance of ±0.01% or ±0.1%. The USF371 are constructed with an aluminum oxide ceramic sandwich which provides great thermal conductivity which very effectively minimizes the power coefficient drift. Utilising Caddock proprietary resistance film systems, they provide the lowest TCR and the highest voltage ratings available in the industry.

  • Ultra-stable radial leaded film through-hole resistors
  • Resistance values available are between 19.8MΩ and 25MΩ
  • TCR of ±5 ppm/°C
  • Tolerance of ±0.01% or ±0.1%
  • Operating temperature -40°C to +85°C
  • Maximum working voltage of 2,500V
  • Ceramic package provides cool operation
  • Maximum power rating of 0.75W at +85°C
  • Utilising Caddock’s proprietary resistance film systems

The USF Ultra-Stable Resistors are offered in standard resistance values that are most commonly used in precision analog design and can be used in

  • Precise amplifier gain setting
  • Precise resistor bridge circuits
  • Precise transducer sense circuits
  • Precise voltage dividers with up to 2500 volt input voltage

The below table gives the specifications available for the complete USF series including the USF371 model:

Caddock USF371 series Specifications



Specifications

Weight 0.00000 kg
Dimensions 38.10 × 1.91 × 13.21 mm
Minimum Resistance

Maximum Resistance

Series / Model

Temperature Coefficient

Power Rating

Additional Features

Ultra-stable radial leaded film through-hole resistorsMaximum working voltage of 2.5kVCeramic package provides cool operationUtilising Caddock's proprietary resistance film systemsAvailable in standa

Tolerance

,

RoHS Compliant Product – Caddock

This product is available fully compliant to the RoHS EU directive 2011/65/EU and 2015/863/EU

Caddock USF Series Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
Caddock USF ultra-stable low TC ultra-precision film resistor series datasheet
Designing with Caddock TO-style heat sink mountable power film resistors application note (AEN-0101)
Understanding the power rating of Caddock MP9100 resistors application note (AEN-0102)
Application of the type CHR high resistance precision chip resistor products application note (AEN-0103)
Terminal finish and soldering process information for Caddock resistor products application note (AEN-0104)
Caddock resistor products and the RoHS directive application note (AEN-0105)
Customer applications that are outside the scope of the RoHS directive application note (AEN-0106)
Caddock REACH compliance statement application note (AEN-0107)
Recommended solder reflow profile for Caddock surface-mount resistors application note (AEN-0108)

Caddock USF371 Series

Quantity
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