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SMM4F20A-TR
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ST Microelectronics

SMM4F20A-TR

TVS Diode · SMA Flat · Discrete Semiconductor
Part Status: Active In demand
Data last refreshed Jul 31, 2026
Manufacturer
ST Microelectronics
Mfr Part #
SMM4F20A-TR
Series
SMM4F
Category
TVS Diode
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels13
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Vrwm20 V
Ppp400 W
DirectionUnidirectional
Physical & Thermal
Package / CaseSMA Flat
Mounting TypeSurface Mount
SeriesSMM4F
Operating Temperature-55°C ~ 175°C
Classification & Lifecycle
CategoryTVS Diode
TypeDiscrete Semiconductor
Part StatusActive

400 W, 20 V unidirectional Transil TVS diode

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Availability & Sourcing

13 sources
SourceMfrQtyDate CodeConditionStatus
Live ST MICROELECTRONICS SEMI 13821 — — Live RFQ
Live ST 1192 11 — Live RFQ
Live ST Micro Electronics 200 — — Live RFQ
Live ST 23200 14+15+16 — Live RFQ
Live ST 6000 25+ — Live RFQ
Live ST 22500 24+ — Live RFQ
Live ST 9498 1424+ — Live RFQ
Market ST MICROELECTRO 13821 — — Available RFQ
Market ST 1192 11 — Available RFQ
Market ST Micro Electr 200 — — Available RFQ
Market ST 23200 14+15+16 — Available RFQ
Market ST 22500 24+ — Available RFQ
Market ST 9498 1424+ — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Part Activity

recent searches, RFQs & offers
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SMM4F20A-TR viewed on the web · Web User
SMM4F20A-TR viewed on the web · Web User
SMM4F20A-TR viewed on the web · Web User
SMM4F20A-TR viewed on the web · Web User
SMM4F20A-TR viewed on the web · Web User
SMM4F20A-TR viewed on the web · Web User

Recent search and sourcing activity for SMM4F20A-TR.

Engineering FAQ

What are the key specifications of SMM4F20A-TR?
Vrwm: 20 V; Ppp: 400 W; Direction: Unidirectional.
What package is SMM4F20A-TR supplied in?
SMM4F20A-TR is supplied in the SMA Flat package, surface mount, rated -55°C ~ 175°C.
Can ZDI source SMM4F20A-TR beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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