SMD lead bending selection for axial lead winding resistors

     Vishay Intertechnology, Inc. announced that 5W devices in its AC and AC-AT series of cemented, axial lead winding resistors now offer an easy-to-place SMD lead bending option, the WSZ lead form, allowing the device to be used as a surface-mount element. The Vishay Draloric AC05 WSZ and AEC-Q200 qualified AC05-AT WSZ provide superior pulse capability in the non-inductive version AC05-NI WSZ for fast switching circuits.

     The equipment has a robust, non-flammable silicone cement coating that complies with UL 94 and is suitable for challenging operating conditions V-0. Resistors operate in a wide temperature range from -55 ° C to +250 ° C and are provided with a wireline structure that meets the highest requirements for mechanical resistance and thermal shock at high temperatures. rohs compliant halogen-free devices are available with tinned terminals for compatibility with lead-free and leaded welding processes.

     Resistors in the form of WSZ leads can be assembled on the PCB with other surface mount components to enhance the pick-and-place process, reduce assembly time and reduce costs. The device will act as a buffer and inrush current limiting resistor for pre-charge/discharge applications in automotive and industrial electronics, meters and white goods power supplies. For these applications, the resistor provides a peak power of 5kW at a 1μs pulse load, with resistance values ranging from 0.1 ohms to 10 Kohm.