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EL3H7(E)(TB)-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)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：200% @ 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(E)(TB)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides an isolation voltage of 3750 Vrms. The device operates within a temperature range of -55°C to +110°C. Key electrical parameters include a maximum collector-emitter voltage of 80V, a maximum collector current of 50mA, and a typical forward voltage of 1.2V at a forward current of 50mA. The unit weight is specified as 260 mg.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes an NPN phototransistor for signal transmission
- Designed for surface-mount installation in compact form factors
Applications
- Industrial control systems requiring galvanic isolation
- Signal transmission across isolated ground planes
- Microcontroller interface circuits for noise immunity
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin required for the application, as the EL3H7 series includes multiple variants with different gain ranges. Confirm that the SSOP-4 package dimensions match the target PCB footprint. Ensure compliance with RoHS directives if applicable to the manufacturing region. Cross-reference the suffix codes to confirm the exact optical characteristics and packaging type before finalizing orders.
Selection Notes
Select this component when a small footprint and high isolation voltage are prioritized over high-speed switching capabilities. The NPN output is suitable for standard logic interfacing where moderate propagation delays are acceptable. Compare CTR specifications against other EL3H7 variants to ensure sufficient margin for the driving circuit. Consider thermal dissipation limits if operating near the maximum junction temperature.
Part Context
This part belongs to the EL3H7 family of ultra-small SSOP optocouplers from Everlight. The family shares common isolation ratings and package styles but varies in CTR bins and specific suffix designations. These components are designed to replace larger DIP packages in space-constrained modern electronics while maintaining robust isolation performance.
Replacement Considerations
Direct substitutes may include other EL3H7 variants such as EL3H7(C)(TB)-VG or EL3H7(F)(TB)-VG, provided their specific CTR ranges align with the circuit requirements. Verify pinout compatibility and package dimensions before substitution.
