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QTT3223ST1 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 QTT3223ST1
- 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)：1.2 A
- 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 QTT3223ST1
Triac, SCR Output Optoisolators Overview
The QTT3223ST1 is a random-phase, high-power triac output optoisolator manufactured by QT Brightek. It features a 7-SMD surface-mount package and provides electrical isolation with a rated voltage of 5000Vrms. The device includes one channel for signal transmission between input and output circuits. It operates within a temperature range of -55°C to 85°C. The component is designed for applications requiring robust isolation in power control systems.
Triac, SCR Output Optoisolators Feature Summary
- Random-phase triac output configuration for AC load control
- High isolation voltage rating of 5000Vrms
- Surface mount 7-SMD package design
- Wide operating temperature range capability
Triac, SCR Output Optoisolators Applications
- Industrial motor control systems
- Solid-state relay modules
- AC power switching circuits
Triac, SCR Output Optoisolators Procurement Notes
Verify the specific suffix ST1 against official datasheets to confirm the 7-SMD surface-mount variant. Ensure compatibility with required isolation standards and thermal management specifications for the target application environment before finalizing procurement decisions.
Triac, SCR Output Optoisolators Selection Notes
Select this component when a surface-mount solution is required for high-power AC switching applications. Consider the random-phase triggering characteristic for general-purpose control rather than zero-crossing requirements. Verify pinout compatibility with existing PCB layouts due to the unique 7-pin configuration.
Triac, SCR Output Optoisolators Part Context
This part belongs to the QTX223 series from QT Brightek, focusing on high-power triac outputs. It serves as an interface between low-voltage logic circuits and higher-voltage AC loads, providing galvanic isolation to protect sensitive control electronics from electrical noise and transients in the power stage.
Triac, SCR Output Optoisolators Replacement Considerations
Check for direct substitutes within the same series or equivalent random-phase triac optoisolators with matching 7-SMD footprints and 5000Vrms isolation ratings. Confirm that alternative parts meet the same thermal and current handling specifications.
Explore related parts through Optocouplers, Optoisolators, Isolators, all product categories, ChipApex homepage.
