Power Resistors Meet High Temperature Soldering Requirements

Jun 22, 2009 2:33 PM

Bourns, Inc. introduced a power resistor specifically engineered to meet high temperature soldering requirements that enable improved automated board assembly.  Designated Bourns PWR263S-20, the new power resistor features a D²PAK surface mount package, which provides an optimal solution for space-constrained designs that have lead free soldering temperature requirements.  Bourns' new power resistor is ideal for high-volume; high power component automated assembly, and is a drop-in replacement for competitive thickfilm resistive products in D²PAK packages.  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.

Bourns' PWR263S-20 power resistor features a low inductive resistive film which is ideal 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 Ohms 1% and 5% to 130K Ohms 1% and 5% for increased stability and durability over a wide temperature range.

Technical Specifications
Power                       20W at 25°C
TCR                         100 PPM/°C
Thermal Resistance    6.5°C/W
Resistance Range      0.5ohm to 130 kΩ
Inductance                0.1 µH
Insulation Resistance  10 GΩ
Bourns' new power resistor is available now.  As a pricing reference, this new resistor is priced from $1.75-$2.55 in 5,000 piece quantities.

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