Caddock CD2520WBA Series

The CD2520WBA low resistance precision wire-bondable surface-mount resistor series from Caddock offers resistance values from as low as 0.01Ω up to 0.2Ω making it ideal for current sensing applications. The CD2520WBA series features a unique pedestal terminal design for surface-mount applications as well as low inductance of 5nH (typical) which provides excellent high frequency and pulse response, with high pulse handling and overload capabilities. The WBA variant of the CD series from Caddock is a hybrid mountable version with copper pedestal terminals and an aluminium surface layer for wire-bonding utilising aluminium wire and a metallised back surface for solder attachment of the back surface to a heat sinking substrate.

• Low resistance precision wire-bondable resistor
• Wire-bondable version for hybrid applications (WB)
• 2520 chip size
• Resistance values from 0.01Ω to 0.2Ω
• Pedestal terminal design helps maintain precision and its copper core provides heat spreading which enhances the high power handling capabilities
• Bare ceramic back surface
• High pulse handling and overload capabilities
• Low inductance of 5nH (typical) provides excellent high frequency and pulse response
• Tolerance of ±1.0%
• TCR from as low as 0 to +100 ppm/°C (resistance values of 0.05Ω up to 0.2Ω)
• Temperature range from -55°C up to +150°C

Thermal resistance is provided for the CD2520WBA series to optimise high power designs when utilising higher thermal conductivity circuit board substrates such as IMS or Alumina. Please see datasheet for further details.

Please note that during soldering of all CD resistors from Caddock, the soldering temperature profile must not cause the pedestal terminals of this device to exceed +220°C.

The recommended solders for flip-chip solder attachment are Sn (62) / Pb (36) / Ag (2).

The below table gives the available specifications for the complete CD WBA series including the CD2520WBA:

Please see datasheet for notes relating to the power capabilities.