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STMicroelectronics SM6T39A

TVS DIODE 33.3VWM 53.9VC SMB

Answer first: this page is a purchasing reference for the exact part number SM6T39A from STMicroelectronics. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.

Manufacturer: STMicroelectronics Part number: SM6T39A Package: DO-214AA, SMB RFQ verification required

Key Parameters

Part NumberSM6T39A
ManufacturerSTMicroelectronics
CategoryTVS Diodes
packageDO-214AA, SMB
seriesSM6T, TRANSIL™
packagingTape & Reel (TR)
product statusActive
param 1Zener
param 21
param 3-
param 433.3V
param 537.1V
param 653.9V
param 711.1A
param 8600W
param 9No
param 10General Purpose
param 11-
param 12-55°C ~ 150°C (TJ)
param 13-
param 14-
param 15Surface Mount
param 16SMB

Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.

How to Verify SM6T39A Before Ordering

Datasheet and parameter checks

  • Confirm the full manufacturer part number, not only a shortened search keyword.
  • Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
  • Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.

RFQ fields SENICO needs

  • Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
  • State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
  • Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.

For SM6T39A, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.

We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.

Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.