Stackpole has released the RPC series of film-based chip resistors with 1% tolerance and good pulse handling capability. The resistors use a robust film element with a limited laser trim to attain the 1% tolerance. The standard chip resistors may have a significant laser trim to calibrate them to the required resistance value. Trimming a chip resistor can reduce the amount of pulse power that each size chip can handle and may lead to variations in surge handling from part to part.
The resistors have a controlled laser trim that yields good pulse handling characteristics. The resistors are also available in 0.5% tolerances for certain sizes and resistance values.
The resistors are suitable for power supply and motor startup applications where there is a significant power surge during power up and power down. They are also suitable for thermostats and HVAC controls, home entertainment and surveillance systems, fuel cell and alternative energy controls, industrial automation, LED drivers, optical and vision systems, displays, and communication infrastructure.
The resistors are also available in tape and reel packaging in 4k per reel for 2010 and 2512 sizes and 5k per reel for 0603 and 1210 sizes.