800-219-9001 RFQ
1SMB40CAT3G — SOD-123/323 · SMA/SMB/SMC diode package (representative)
SOD-123/323 · SMA/SMB/SMC diode
Representative of package type
ON Semiconductor

1SMB40CAT3G

TVS Diode · SMB (DO-214AA) · Discrete Semiconductor
Part Status: Obsolete In demand
Data last refreshed Aug 17, 2026
Manufacturer
ON Semiconductor
Mfr Part #
1SMB40CAT3G
Series
1SMB
Category
TVS Diode
Datasheet
View datasheet ↗
Availability & Pricing
Est. market range$0.12 – $0.45
Sourcing channels22
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Standoff Voltage40 V
Peak Power600 W
Breakdown Voltage Min44.4 V
Physical & Thermal
Package / CaseSMB (DO-214AA)
Mounting TypeSurface Mount
Series1SMB
Operating Temperature-65°C ~ 150°C
Classification & Lifecycle
CategoryTVS Diode
TypeDiscrete Semiconductor
Part StatusObsolete

Bidirectional TVS diode, 40 V standoff, 600 W peak pulse power, SMB package

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Availability & Sourcing

22 sources
SourceMfrQtyDate CodeConditionStatus
Live ON-SEMI(RoHS) 4910 07 — Live RFQ
Live ON 3673 0734 — Live RFQ
Live ON SEMICONDUCTOR 2500 — — Live RFQ
Live ON Semiconductor 73 1138 — Live RFQ
Live ON 368300 2025 — Live RFQ
Live ON 200000 — — Live RFQ
Live LT 33232 SSOP-28 — Live RFQ
Live ONSEMI 15000 25+ — Live RFQ
Live ON 4720 0752+ — Live RFQ
Live ONSemi 73 201138 — Live RFQ
Live ONSemi 4910 2007 — Live RFQ
Market ON-SEMI(RoHS) 4910 07 — Available RFQ
Market ON 3673 0734 — Available RFQ
Market ON SEMICONDUCTO 2500 — — Available RFQ
Market ON Semiconducto 73 1138 — Available RFQ
Market ON 368300 2025 — Available RFQ
Market ON 200000 — — Available RFQ
Market LT 33232 SSOP-28 — Available RFQ
Market ONSEMI 15000 25+ — Available RFQ
Market ON 4720 0752+ — Available RFQ
Market ONSemi 73 201138 — Available RFQ
Market ONSemi 4910 2007 — Available RFQ

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

Price History & Market Reference

Market Price Range

High$0.45
Low$0.12
Last$0.285
Price as of2026-08-17

ZDI Transaction

ZDI priceQuote on request
Active offers22

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G viewed on the web · Web User
1SMB40CAT3G searched via the web · Web User

Recent search and sourcing activity for 1SMB40CAT3G.

Engineering FAQ

1SMB40CAT3G is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of 1SMB40CAT3G?
Standoff Voltage: 40 V; Peak Power: 600 W; Breakdown Voltage Min: 44.4 V.
What package is 1SMB40CAT3G supplied in?
1SMB40CAT3G is supplied in the SMB (DO-214AA) package, surface mount, rated -65°C ~ 150°C.
Can ZDI source 1SMB40CAT3G 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

1SMB40CAT3G is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

Related Parts

from ON Semiconductor

Need 1SMB40CAT3G?

ZD Integrated Circuits sources hard-to-find, obsolete, and excess components worldwide — pricing and availability, fast.

Request a Quote →