February 16, 2017
Vishay Intertechnology, Inc. today introduced a new series of 400V and 450V snap-in, four-terminal aluminum electrolytic capacitors with improved ripple current capability at an ambient temperature of 105 degrees C in 15 large case sizes. Designed for power supplies and industrial and home appliance inverters, the Vishay BCcomponents 299 PHL-4TSI series reduces component counts and lowers costs while increasing mechanical stability and end-product lifetimes.
Featuring a cylindrical aluminum case with pressure relief, insulated with a blue sleeve, the devices released today offer ripple currents from 2.45A to 6.77A, allowing designers to utilize fewer components to meet the requirements of applications connected to a three-phase mains. The 299 PHL-4TSI capacitors have a high 105 degrees C temperature capability and long useful life of 5000 hours while still being 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 significantly lowers construction costs and enables soldering processing instead of manual mounting. With larger case sizes than standard two-terminal snap-in capacitors — ranging from 35mm by 50mm to 45mm by 100 mm — the devices limit the number of components required.
As polarized aluminum electrolytic capacitors with a non-solid electrolyte, 299 PHL-4TSI series devices are ideally suited for smoothing, filtering, and energy storage in pulsed power applications. The devices are RoHS-compliant; their four-terminal configuration provides increased mechanical stability and keyed polarity.
Additional specifications include: Capacitance range of 470µF to 2200µF with a tolerance of ±20%; Ripple current at 100Hz and +105 degrees C from 2.45A to 6.77A; Operating temperature range of -40 to +105 degrees C; Maximum ESR at 100Hz of 60mΩ to 240mΩ; and Maximum impedance at 10kHz from 50mΩ to 170mΩ.
Samples and production quantities of the 299 PHL-4TSI series capacitors are available now, with lead times of 10 to 12 weeks. Pricing varies by capacitance, voltage, and volume. For example, 1,000µF / 450V devices start at $11 per piece in 180-piece quantities.