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STMicroelectronics STTH30L06PI — Discrete Semiconductors

STTH30L06PI Fast Recovery Diode, 600V 30A, 90ns trr, DOP3I-2

MPNSTTH30L06PI
Obsolete

STMicroelectronics STTH30L06PI, Fast Recovery Diode, 600 V Vrrm, 30 A average, 90 ns trr, Through Hole, DOP3I-2 Insulated (Straight Leads), Tube.

$3.2600Ref. price · indicative, final on quote
STMicroelectronics STTH30L06PI datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STTH30L06PI specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.55 V @ 30 A
Current - reverse leakage @ vr25 µA @ 600 V
Current - average rectified30A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologyStandard
CaseDOP3I-2 Insulated (Straight Leads)
Reverse recovery time90 ns

Product details

What this 600 V, 30 A fast recovery diode is for

It's built for high-frequency rectification in power supplies, PFC boost stages, and snubber circuits where switching losses matter. The DOP3I insulated through-hole package keeps the tab isolated, so you don't need a separate insulating pad against the heatsink.

A 90 ns reverse recovery time puts this in the fast-recovery class, not ultrafast. It's fine for line-frequency rectifiers and moderate-speed SMPS.

STMicroelectronics lists the STTH30L06PI as obsolete. For a production BOM, you need to qualify a replacement or source from the surplus channel. The good news: the 600 V / 30 A / fast-recovery diode market is well-populated, so a pin-compatible drop-in (same DOP3I footprint) exists from several manufacturers.

Through-hole DOP3I-2 — footprint and handling

The DOP3I package is a through-hole, insulated tab design with straight leads.

Frequently asked questions

Does STTH30L06PI have a compatible SMD alternative?

The DOP3I-2 is a through-hole package, so there is no direct SMD footprint match. For an SMD design, you would need to re-lay the board for a surface-mount package like D2PAK or TO-263, which are common for 30 A diodes. The electrical specs (600 V, 30 A, 90 ns trr) are available in SMD packages from multiple vendors, but the footprint change is not trivial.