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Eaton - Electronics Division STS232120U581

TVS DIODE 12VWM 25VC SOT23

Answer first: this page is a purchasing reference for the exact part number STS232120U581 from Eaton - Electronics Division. 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: Eaton - Electronics Division Category: TVS Diodes Part number: STS232120U581 Package: TO-236-3, SC-59, SOT-23-3 RFQ verification required

Key Parameters

Part NumberSTS232120U581
ManufacturerEaton - Electronics Division
CategoryTVS Diodes
packageTO-236-3, SC-59, SOT-23-3
seriesST
packagingTape & Reel (TR)
product statusActive
param 1Zener
param 22
param 3-
param 412V (Max)
param 513.3V
param 625V
param 712A (8/20µs)
param 8350W
param 9No
param 10General Purpose
param 1158pF @ 1MHz
param 12-55°C ~ 125°C (TJ)
param 13-
param 14-
param 15Surface Mount
param 16SOT-23

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

How to Verify STS232120U581 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 STS232120U581, 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.