● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
STMicroelectronics  · Electronic Components

TYN408

SCR THYRISTOR, 5A, 400V, TO-220AB-3

Part NumberTYN408
ManufacturerSTMicroelectronics
AvailabilityAvailable to order — request a quote

Specifications

RohscompliantYES
Gate Trigger Voltage Max1.5 V
Hazardousfalse
RohsphthalatescompliantYES
Thyristor MountingThrough Hole
Product RangeTYN408
IscanonicalY
MslMSL 1 - Unlimited
Peak Non Repetitive Surge Current80 A
Holding Current Max45 mA
Operating Temperature Max125 °C
SvhcNo SVHC (25-Jun-2025)
Average On State Current5 A
Thyristor Case StyleTO-220AB
Review your list (0) →
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant

Frequently asked

Is TYN408 available?
We can source TYN408 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is TYN408 by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If TYN408 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like TYN408?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for TYN408?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.