Power resistor suits lead-free soldering

11 November 2009 Passive Components

Bourns has developed a new power resistor specifically engineered to meet high-temperature soldering requirements to enable improved automated board assembly. The new PWR263S-20 features a D²PAK surface mount package, which provides a solution for space-constrained designs that have lead-free soldering temperature requirements. The new power resistor is designed to fit a broad range of applications that include industrial automation, telecommunication equipment, lighting controls, heating systems, battery chargers, inverter drives and general switch mode power supplies.

The 20 W power resistor features a low inductive resistive film which is well suited for high-frequency circuits and provides high surge capability suitable for applications requiring resistors to discharge capacitive energy. It also has a wide resistance range of 0,5 Ω 1% and 5% to 130 kΩ 1% and 5% for durability over a wide temperature range. The resistor features thermal resistance of 6,5°C and inductance of 0,1 μH.

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