Skip to main content
Log in
STMicroelectronics BYW99P-200 — Discrete Semiconductors

STMicroelectronics BYW99P-200 Fast Recovery Diode

MPNBYW99P-200
Obsolete

STMicroelectronics BYW99P-200, Fast Recovery Diode, 1 Pair Common Cathode, 200 V, 15 A per diode, 40 ns trr, 850 mV Vf at 12 A, Through Hole, TO-218-3 / SOT-93, -40°C to 150°C junction.

STMicroelectronics BYW99P-200 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BYW99P-200 specifications
ParameterValue
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
TechnologyStandard
CaseTO-218-3
Diode configuration1 Pair Common Cathode
Reverse recovery time40 ns

Product details

The 850 mV forward drop at 12 A is low for a 200 V fast-recovery part, which helps keep conduction losses manageable in a TO-218-3 (SOT-93) through-hole package.

Obsolete — no official replacement listed

For a BOM line that must stay active, a parametric cross-search for a 200 V, 15 A, common-cathode fast-recovery diode in a TO-218 / SOT-93 package is the practical next step — several manufacturers offer similar ratings, but pinout and thermal pad geometry need verification against the original footprint.

Junction temperature and mounting

The TO-218-3 (SOT-93) through-hole package has a metal tab for heatsink attachment — plan for a thermal interface pad and a screw or clip mount to keep the junction temperature below the 150°C absolute maximum under the 15 A per-diode load. The common-cathode configuration means the two anodes are separate, the cathodes tied internally; verify the pinout against the original PCB layout before substituting.

Frequently asked questions

Is the BYW99P-200 obsolete?

Yes, the BYW99P-200 carries an Obsolete product status. No official successor is listed, so buyers should plan for a parametric substitute or source remaining inventory through the surplus/broker channel.

What is the closest pin-compatible alternative to the BYW99P-200?

No official pin-compatible second source or successor is recorded. A cross-search for a 200 V, 15 A, common-cathode fast-recovery diode in a TO-218 / SOT-93 package from other manufacturers (e.g., Vishay, ON Semiconductor) may yield a candidate, but the pinout and mounting tab dimensions must be verified against the original footprint before committing the BOM.