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STMicroelectronics BYV255V-200 — Discrete Semiconductors

STMicroelectronics BYV255V-200 Fast Recovery Diode

MPNBYV255V-200
Obsolete

STMicroelectronics BYV255V-200 dual fast-recovery diode, 200 V reverse voltage, 100 A average rectified per diode, 80 ns trr, 850 mV Vf at 100 A, ISOTOP chassis-mount package, 150°C junction temperature.

$26.6500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BYV255V-200 specifications
ParameterValue
MountingChassis Mount
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if850 mV @ 100 A
Current - reverse leakage @ vr100 µA @ 200 V
Current - average rectified (Io) (per diode)100A
Operating temperature - junction150°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologyStandard
CaseISOTOP
Diode configuration2 Independent
Reverse recovery time80 ns

Product details

Fast-recovery dual diode in the ISOTOP bolt-down package

The STMicroelectronics BYV255V-200 is a dual fast-recovery rectifier diode in the ISOTOP chassis-mount package. Two independent 100 A diodes share the common cathode ISOTOP footprint, each rated for 200 V reverse voltage with an 80 ns reverse recovery time. Forward voltage is 850 mV at the full 100 A rated current. The part is a standard-technology fast-recovery diode suited for high-current rectification, freewheeling, and snubber circuits in power supplies, motor drives, and welding equipment where the 80 ns trr keeps switching losses low.

Obsolete — no official replacement listed

An RFQ will confirm current availability and pricing; date codes and screening options (e.g., tape/reel vs tube) can be specified at quote time.

The 80 ns reverse recovery time places the BYV255V-200 in the fast-recovery class (≤500 ns per the speed code). For a 100 A diode at 200 V, 80 ns trr means the diode clears stored charge quickly enough for 20–50 kHz hard-switched converters without excessive turn-off loss or ringing. Compare this to a standard 200 V 100 A rectifier with trr in the microsecond range — the BYV255V-200 cuts recovery losses by roughly an order of magnitude. The 100 µA reverse leakage at 200 V is typical for a fast-recovery die of this current class; expect it to rise with junction temperature, but the 150°C maximum junction rating gives thermal headroom for forced-air or liquid-cooled heatsinks.

Frequently asked questions

Is the BYV255V-200 obsolete and where can I buy it?

Yes, the BYV255V-200 is listed as Obsolete. No direct replacement is specified by STMicroelectronics.

What is the reverse recovery time of the BYV255V-200?

The reverse recovery time (trr) is 80 ns. This is the time required for the diode to switch from forward conduction to reverse blocking, a key parameter for high-frequency rectification and snubber design.

What package does the BYV255V-200 use?

The BYV255V-200 comes in an ISOTOP chassis-mount package (also called ISOTOP® by ST). This is a large, bolt-down module with screw terminals, not a soldered PCB package — designed for direct mounting to a heatsink or panel.