Snap-in aluminum electrolytic capacitors reduce component count

Snap-in, four-terminal aluminum electrolytic capacitors from Vishay BCcomponents, have improved ripple current capability at an ambient temperature of 105 degree C. The 299 PHL-4TSI series 400 and 450V models are offered in 15 large case sizes.

Designed for power supplies and industrial and home appliance inverters, the 299 PHL-4TSI series reduces component counts and lowers costs while increasing mechanical stability and end-product lifetimes, claims the company.

The cylindrical aluminum case with pressure relief, is insulated with a blue sleeve, allowing the devices to offer high ripple current from 2.45 to 6.77A, allowing designers to use fewer components to meet the requirements of applications connected to a three-phase mains. In addition to the high temperature capability, useful life is 5000h while the capacitors are still able to withstand high ripple currents.

The capacitors can replace banks of large screw terminal devices connected by a bus-bar with smaller parts connected by a PCB. This lowers construction costs and enables soldering processing instead of manual mounting. Larger case sizes than standard two-terminal snap-in capacitors are offered, ranging from 35 x 50mm to 45 x 100mm.

As polarized aluminum electrolytic capacitors with a non-solid electrolyte, 299 PHL-4TSI series devices are suited for smoothing, filtering, and energy storage in pulsed power applications. The devices are RoHS-compliant and the four-terminal configuration provides increased mechanical stability and keyed polarity, says the company.


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