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QT Brightek (QTB) Q817CST1

SMD 4PIN DC INPUT PHOTOTRANSISTO

Answer first: this page is a purchasing reference for the exact part number Q817CST1 from QT Brightek (QTB). 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: QT Brightek (QTB) Category: Transistor, Photovoltaic Output Optoisolators Part number: Q817CST1 Package: 4-SMD, Gull Wing RFQ verification required

Key Parameters

Part NumberQ817CST1
ManufacturerQT Brightek (QTB)
CategoryTransistor, Photovoltaic Output Optoisolators
package4-SMD, Gull Wing
seriesQ817
packagingTape & Reel (TR)
product statusActive
param 11
param 25000Vrms
param 3200% @ 5mA
param 4400% @ 5mA
param 5-
param 66µs, 8µs
param 7DC
param 8Transistor
param 935V
param 1050mA
param 111.24V
param 1260 mA
param 13200mV
param 14-
param 15-
param 16-55°C ~ 110°C
param 17Surface Mount
param 184-SMD

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

How to Verify Q817CST1 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 Q817CST1, 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.