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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV TRIAC 1CH 4-SMD
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Triac
- Zero Crossing Circuit：No
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Voltage - Off State：800 V
- Static dV/dt (Min)：1kV/µs
- Current - LED Trigger (Ift) (Max)：10mA
- Current - On State (It (RMS)) (Max)：100 mA
- Current - Hold (Ih)：400µA (Typ)
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Approval Agency：CQC, cUL, UL, VDE
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Overview
The VOT8121AB-VT1 is a single-channel optoisolator manufactured by Vishay Semiconductor Opto Division, featuring a GaAs infrared LED coupled to a photosensitive TRIAC. It provides an isolation voltage of 5300Vrms and supports a maximum RMS on-state current of 100 mA with an off-state voltage of 800 V. The device operates within a temperature range of -55°C to 110°C and utilizes a 4-SMD surface-mount package.
Feature Summary
- Integrates a GaAs infrared LED with a photosensitive TRIAC for high-voltage isolation
- Provides robust electrical isolation rated at 5300Vrms between input and output circuits
- Designed for surface-mount assembly in compact board layouts
Applications
- Solid-state relay driver circuits
- Motor control interfaces
- Power supply feedback loops
Procurement Notes
Verify the specific suffix VT1 against the official Vishay datasheet to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS3 standards and check for any recent Product Change Notifications regarding bond wire diameter or alternative sources before finalizing procurement.
Selection Notes
Select this component when high isolation voltage and low holding current are required for triac triggering applications. Compare the 100 mA RMS current rating and 800 V blocking voltage against load requirements. Consider the operating temperature range and surface-mount footprint constraints during PCB layout design.
Part Context
This part belongs to the VOT8121 family of Triac output optocouplers from Vishay. It shares core characteristics with variants like VOT8121AB-T3 but differs in packaging and reel configuration. The family is designed for general-purpose AC switching and isolation tasks requiring reliable performance across wide temperature ranges.
Replacement Considerations
Direct substitutes include VOT8121AB-T3 and VOT8121AM-VT, provided pinout and isolation ratings match. Verify that replacement packages align with existing PCB footprints and that thermal management requirements remain consistent.
