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STMicroelectronics BYW99W-200 — Discrete Semiconductors

STMicroelectronics BYW99W-200 Fast Recovery Diode, 40 ns trr

MPNBYW99W-200
Obsolete

STMicroelectronics BYW99W-200 dual common-cathode fast recovery diode, 200 V, 15 A per diode, 40 ns trr, TO-247-3, -40°C to 150°C junction.

$0.6800Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BYW99W-200 specifications
ParameterValue
Diode typeStandard
MountingThrough Hole
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if850 mV @ 12 A
Current - reverse leakage @ vr20 µA @ 200 V
Current - average rectified (Io) (per diode)15A
Operating temperature - junction-40°C~150°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-247-3
Diode configuration1 Pair Common Cathode
Reverse recovery time40 ns

Product details

Dual fast-recovery diode in TO-247-3

The 40 ns trr makes it suitable for switching power supplies, motor drive snubbers, and flyback circuits where recovery speed reduces switching losses.

40 ns trr — switching loss impact

The 40 ns reverse recovery time is the key parameter for hard-switched topologies. In a 100 kHz PFC boost stage, that recovery speed keeps the diode's turn-off loss well below what a standard recovery part would incur, letting you run smaller heatsinks or push output current. The common-cathode pair also simplifies layout for center-tapped rectifiers — one TO-247-3 replaces two separate diodes, saving board space and reducing loop inductance.

Frequently asked questions

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