Vishay adds pick-and-place friendly lead bending option for cemented, axial-leaded wirewound resistors
Vishay has announced that certain devices in its AC and AC-AT series of cemented, axial-leaded wirewound resistors are available with a pick-and-place friendly lead bending option, the WSZ lead form, that allows the devices to be used as surface-mount components.
Offering high power dissipation and excellent pulse capability, the Vishay Draloric resistors are the first such devices to be offered in a non-inductive version. The devices available with the WSZ lead form are shown in the table below.
Resistors with the WSZ lead form can be assembled on the PCB alongside other surface-mount components to improve the pick-and-place process and lower costs. The devices will serve as snubber, load, and inrush current limiting resistors for pre-charge / discharge applications in automotive and industrial electronics, energy meters, and white goods power supplies.
For challenging operating conditions, the devices feature a robust, non-flammable silicone cement coating that conforms to UL 94 V-0. The resistors operate over a wide temperature range of -55°C to +250°C and offer a wirewound construction that meets the highest requirements against mechanical resistance, thermal shocks, dielectric strength, and insulation resistance at high temperatures.
The RoHS-compliant, halogen-free devices offer tin-plated terminations for compatibility with lead (Pb)-free and lead (Pb)-containing soldering processes.
Samples and production quantities of the series resistors with WSZ lead forms are available, with lead times of 16 weeks.