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EL3H7(C)(TA)-VG
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SSOP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：200% @ 5mA
- Current Transfer Ratio (Max)：400% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：5µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-SSOP
- Grade：-
- Qualification：-
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Overview
The EL3H7(C)(TA)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and an NPN phototransistor in a compact 4-pin SSOP package with a 2mm body width. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80V, a maximum DC forward current of 50mA, and a typical forward voltage of 1.2V. The Current Transfer Ratio (CTR) ranges from 200% to 400% at a forward current of 5mA. It operates within a temperature range of -55°C to +110°C.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits using optical transmission.
- Features a compact surface-mount SSOP-4 package designed for space-constrained applications.
- Utilizes an NPN phototransistor output suitable for digital logic interfacing and impedance transformation.
Applications
- Digital signal transmission and logic level shifting
- Power supply control and switching circuits
- Electrical isolation between system components
Procurement Notes
Verify the specific CTR bin designation corresponding to the suffix 'C' against the manufacturer's datasheet to ensure it meets the required 200%-400% transfer ratio range. Confirm that the 4-pin SSOP footprint matches the target PCB layout dimensions. Ensure compliance with RoHS3 regulations as indicated in official documentation before finalizing procurement specifications.
Selection Notes
Select this component when a small form factor is required alongside robust isolation capabilities. The wide operating temperature range supports harsh environments. Verify that the 80V output voltage rating exceeds the load requirements. Consider the 50mA output current limit when designing the pull-up resistor network for the connected logic circuitry.
Part Context
This part belongs to the EL3H7-G series of ultra-small solid-state relays and optocouplers. The series is characterized by its narrow SSOP package, which facilitates high-density mounting on printed circuit boards. The product line is designed to replace larger through-hole alternatives in modern electronic designs requiring galvanic isolation.
Replacement Considerations
Cross-reference with EL3H7(C)(TA)-G or EL3H7(C)(TB)-VG for equivalent performance in different packaging or tape-and-reel configurations. Verify pinout compatibility and thermal characteristics before substituting with generic transistor output optocouplers.
