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Product Detailed Parameters
- Description：OPTOISOLTR 3.75KV TRIAC 1CH 4SOP
- 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：3750Vrms
- 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)：250µA (Typ)
- Turn On Time：30µs
- Voltage - Forward (Vf) (Typ)：1.15V
- 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-SOP
- Approval Agency：cUR, UR, VDE
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Overview
The VOT8121AM-VT is a single-channel optoisolator featuring a Triac output, manufactured by Vishay Semiconductor Opto Division. It provides an isolation voltage of 3750Vrms and supports a maximum on-state current (It RMS) of 100 mA with a breakover voltage (VDRM) of 800 V. The device operates within a temperature range of -55°C to 110°C and utilizes a 4-SOP surface-mount package. Key electrical parameters include a typical forward voltage (Vf) of 1.15 V, a maximum DC forward current (If) of 50 mA, and a turn-on time of 30µs. It lacks zero-crossing circuitry and offers a minimum static dV/dt rating of 1kV/µs.
Feature Summary
- High input sensitivity with a maximum LED trigger current of 10 mA
- Robust noise immunity characterized by a high static dV/dt rating of 1000 V/µs
- Compact flat 2.0 mm SOP-4 surface mount package design
Applications
- Solid-state relay circuits requiring phase-angle control
- Motor speed control systems for AC loads
- Lighting dimmer applications
Procurement Notes
Verify the specific suffix against official Vishay documentation to confirm package type and tape-and-reel specifications. Confirm RoHS3 compliance status and check for recent Product Change Notifications regarding bond wire diameter or alternate sourcing before finalizing procurement orders.
Selection Notes
Select this component when high input sensitivity is required to drive the optocoupler with low microcontroller currents. Ensure the application does not demand zero-crossing switching, as this model lacks that feature. Verify that the 800 V breakover voltage meets the peak line voltage requirements of the target load circuit.
Part Context
This part belongs to the VOT8121 family of Triac output optocouplers from Vishay. It shares core functional characteristics with variants like the VOT8121AB-T3, which offers higher isolation voltage but differs in packaging and certification. The AM suffix typically denotes specific manufacturing attributes within this product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Vishay cross-reference lists for verified alternatives.
