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QTT0223ST1 is listed in the Triac, SCR Output Optoisolators range at ChipApex. The manufacturer field lists QT Brightek (QTB). Its product description is OPTOISO 5KV PWR TRIAC 1CH 7-SMD. Review the specifications below when checking this part for your BOM.
Triac, SCR Output Optoisolators specifications for QTT0223ST1
- Description：OPTOISO 5KV PWR TRIAC 1CH 7-SMD
- Series：QTX223
- Mfr：QT Brightek (QTB)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Triac, Power
- Zero Crossing Circuit：No
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Voltage - Off State：600 V
- Static dV/dt (Min)：200V/µs
- Current - LED Trigger (Ift) (Max)：10mA
- Current - On State (It (RMS)) (Max)：300 mA
- Current - Hold (Ih)：25mA
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.3V (Max)
- Current - DC Forward (If) (Max)：50 mA
- Operating Temperature：-55°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SMD (7 Leads), Gull Wing
- Supplier Device Package：7-SMD
- Approval Agency：UL, VDE
Triac, SCR Output Optoisolators datasheet and documents for QTT0223ST1
Triac, SCR Output Optoisolators Overview
The QTT0223ST1 is a high-power triac output optoisolator manufactured by QT Brightek. It features a random-phase trigger mechanism and provides 5000Vrms isolation between input and output circuits. The device supports a load voltage of 600V and operates within a temperature range of -40°C to +85°C. Packaged in a compact 7-SMD form factor, it is designed for applications requiring robust electrical isolation and precise power control.
Triac, SCR Output Optoisolators Feature Summary
- Random-phase triggering capability for flexible AC power control
- High isolation voltage rating of 5000Vrms for safety
- Compact surface-mount package design
Triac, SCR Output Optoisolators Applications
- Solid-state relays
- Motor control systems
- Industrial automation controllers
Triac, SCR Output Optoisolators Procurement Notes
Verify the specific datasheet version for the QTT0223ST1 to confirm exact electrical parameters such as peak current and holding current. Ensure compatibility with the target PCB footprint for the 7-SMD package. Check for any recent product change notices regarding pinout or material composition updates from the manufacturer.
Triac, SCR Output Optoisolators Selection Notes
Select this component when random-phase switching is required rather than zero-crossing. Compare the 600V blocking voltage against the maximum line voltage of the application. Consider the thermal management requirements for the SMD package under continuous load conditions.
Triac, SCR Output Optoisolators Part Context
This part belongs to the QTX223 series of high-power triac optoisolators. It serves as an interface between low-voltage control logic and high-voltage AC loads. The series is designed for industrial environments requiring reliable signal isolation.
Triac, SCR Output Optoisolators Replacement Considerations
Check for direct pin-compatible alternatives from other manufacturers offering similar 600V triac outputs. Verify that substitute components maintain the same 7-pin SMD footprint and isolation voltage ratings.
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