Skip to main content
STMicroelectronics BYW99W-200 — Discrete Semiconductors
STMicroelectronics

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
BYW99W-200 datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BYW99W-200 Technical Specifications
ParameterValue
Diode typeStandard
Mounting typeThrough 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 STMicroelectronics BYW99W-200 is a dual common-cathode fast recovery diode rated for 200 V reverse voltage and 15 A average rectified current per diode, with a reverse recovery time of 40 ns. 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.

The BYW99W-200 is listed as obsolete by STMicroelectronics.

Frequently asked questions

Where can I buy BYW99W-200?

Submit an RFQ for current availability and pricing — quotes are confirmed at order time.