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EL3H7(C)(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)：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)(TB)-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 surface-mount package. 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 collector current of 50mA, and a typical forward voltage of 1.2V at a maximum DC forward current of 50mA. The Current Transfer Ratio ranges from 200% to 400% when tested at 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 package designed for automated assembly processes.
- Utilizes an NPN phototransistor output suitable for digital logic interfacing and switching applications.
Applications
- Digital signal transmission and level shifting between isolated circuits
- Power supply control and feedback loops requiring galvanic isolation
- Impedance transformation between different electronic subsystems
Procurement Notes
Verify the specific suffix (C)(TB) against the manufacturer datasheet to confirm the exact Current Transfer Ratio binning and packaging configuration. Ensure the procurement source provides valid RoHS compliance documentation as required for modern electronics manufacturing. Cross-reference the part number with official Everlight distributors to avoid counterfeit components.
Selection Notes
Select this component when a single-channel isolation barrier is required with moderate speed and high voltage tolerance. The NPN output type is appropriate for standard logic interfaces. Consider the thermal management requirements given the operating temperature range and power dissipation limits during continuous operation in enclosed environments.
Part Context
This component belongs to the EL3H7 series of transistor output optocouplers from Everlight. The series is characterized by its small form factor and reliability in industrial applications. Variants within the series differ primarily in CTR bins and package styles, such as SOIC or SSOP configurations, catering to diverse PCB layout constraints.
Replacement Considerations
Direct replacements must match the 3750 Vrms isolation rating and NPN output topology. Verify pin compatibility and package dimensions before substitution. Consult Everlight's official cross-reference guides for validated alternative part numbers within the same product family.
