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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-T3 is a single-channel optoisolator featuring a Triac output, manufactured by Vishay Semiconductor Opto Division. It provides an isolation voltage of 5300Vrms and supports a peak off-state blocking voltage of 800V. The device operates within a temperature range of -55°C to 110°C and utilizes a 4-SMD surface-mount package. Key electrical parameters include a maximum RMS on-state current of 100mA, a typical holding current of 400µA, and a minimum static dV/dt rating of 1kV/µs. The LED forward current maximum is 50mA with a typical forward voltage of 1.2V.
Feature Summary
- High static dV/dt immunity rated at 1000 V/µs for noise resilience
- Space-saving SMD-4 package design for board area efficiency
- High input sensitivity with a maximum LED trigger current of 10mA
Applications
- Solid-state relay (SSR) driver circuits
- AC motor control systems
- Industrial process control interfaces
Procurement Notes
Verify the specific suffix 'T3' corresponds to the tape-and-reel packaging configuration when ordering. Confirm that the 5300Vrms isolation rating meets the safety requirements of the target application. Check for recent Product Change Notifications (PCN) regarding manufacturing source or bond wire diameter changes. Ensure compatibility with RoHS3 standards if required by the end product specifications.
Selection Notes
Select this component when high isolation voltage and fast switching speed are critical. The 100mA on-state current limits suitability for low-power AC loads only. Compare the 5300Vrms rating against lower-rated variants like the VOT8121AM if insulation requirements allow. Consider the 4-SMD footprint constraints during PCB layout planning.
Part Context
This part belongs to the VOT8121A family, which integrates a GaAs infrared LED optically coupled to a photosensitive TRIAC. The series is designed for applications requiring compact packaging and reliable AC switching. Variants within the family differ primarily in isolation voltage ratings and packaging styles.
Replacement Considerations
The VOT8121AM-VT serves as a related variant but offers a lower 3750Vrms isolation voltage. Verify that the reduced isolation rating is acceptable for the specific circuit design before substitution.
