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Product Detailed Parameters
- Description：OPTOISOLTR 3.75KV TRIAC 1CH 4SOP
- Series：APT
- Mfr：Panasonic Electric Works
- Package：Tape & Reel (TR)
- Output Type：Triac
- Zero Crossing Circuit：Yes
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Voltage - Off State：600 V
- Static dV/dt (Min)：500V/µs
- Current - LED Trigger (Ift) (Max)：10mA
- Current - On State (It (RMS)) (Max)：50 mA
- Current - Hold (Ih)：3.5mA
- Turn On Time：100µs (Max)
- Voltage - Forward (Vf) (Typ)：1.21V
- Current - DC Forward (If) (Max)：50 mA
- Operating Temperature：-40°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SOP
- Approval Agency：cUR, VDE
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Overview
The Panasonic Electric Works APT1211SZ is a phototriac coupler featuring a Triac output and DIP-4 package. It supports a maximum load voltage of 600 V and an RMS on-state current of 50 mA. The device provides 3750 Vrms isolation and operates within a temperature range of -40°C to 100°C. Key electrical parameters include a minimum static dV/dt of 500 V/µs, a holding current of 3.5 mA, and a typical forward voltage of 1.21 V.
Feature Summary
- Zero-crossing switching capability for reduced electromagnetic interference
- High isolation voltage rating for safety in high-voltage circuits
- Compact through-hole DIP-4 packaging for standard PCB integration
Applications
- Solid-state relay modules
- AC motor control circuits
- Lighting dimmer applications
Procurement Notes
Verify the specific suffix 'SZ' against official Panasonic Electric Works documentation to confirm the DIP-4 package variant. Ensure compliance with RoHS3 standards and relevant safety certifications such as UL and VDE are required for the target application. Cross-reference datasheets for exact thermal and electrical limits before finalizing component selection.
Selection Notes
Select this component when zero-crossing operation is required to minimize noise in AC switching applications. The 600 V blocking voltage suits general-purpose AC loads. Verify that the 50 mA holding current meets the load requirements. Consider the DIP-4 form factor for manual assembly or wave soldering processes compatible with through-hole technology.
Part Context
This part belongs to the APT series of phototriac couplers from Panasonic Electric Works. These devices integrate an infrared LED with a Triac output for galvanic isolation. The series is designed for reliable AC power control in industrial and consumer electronics, offering robust performance across wide temperature ranges.
Replacement Considerations
APT1211SX is a surface-mount SOP-4 equivalent within the same family. Verify pinout compatibility and package dimensions before substitution. Ensure the replacement maintains the required 3750 Vrms isolation and 600 V blocking voltage specifications.
