Vishay's New Series of Low-Profile, Fast, and Ultrafast Avalanche Rectifiers Feature Industry-High Forward Currents to 4 A

Vishay

Vishay Intertechnology, Inc. introduced nine new series of low-profile, surface-mount standard, fast, and ultrafast avalanche rectifiers with 20 mJ EAS avalanche capability and industry-high forward currents up to 4 A in compact, space-saving SMP and SMPC packages.

Vishay - Ultrafast Avalanche Rectifiers

The basic characteristics of series of avalanche diodes:

Series
Forward
current, A
Performance
Package
Height
AS1Px
1
standard
SMP
1.0 mm
AR1Px
1
fast
AU1Px
1
ultrafast
AS3Px
3
standard
SMPC
1.1 mm
AS4Px
4
AR3Px
3
fast
AR4Px
4
AU2Px
2
ultrafast
AU3Px
3

The devices save space in secondary rectifiers and freewheeling diodes for very fast switching of AC/DC and DC/DC converters in high-temperature conditions for consumer, lighting, and automotive applications.

All nine series offer designers a choice of 200 V, 400 V, 600 V, 800 V, or 1,000 V reverse voltage ratings. The rectifiers feature low forward voltage drop, reverse recovery times as low as 75 ns, leakage current down to 0.3 µA, and very low junction-to-mount thermal resistance of 5 °C/W for the SMPC rectifiers and 15 °C/W for the SMP rectifiers. The devices offer a glass passivated chip junction and are ideal for automated placement.

DO-220AA (SMP)  TO-277A (SMPC)
DO-220AA (SMP) TO-277A (SMPC)

The new rectifiers feature a rugged maximum operation junction temperature of +175 °C and an MSL moisture sensitivity level of 1, per J-STD-020. The devices are compliant to RoHS directive 2002/95/EC and WEEE 2002/96/EC, and are halogen-free according to IEC 61249-2-21.

vishay.com

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