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EL3H4(A)(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)：50% @ 1mA
- Current Transfer Ratio (Max)：150% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：6µs, 8µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 100°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 EL3H4(A)(TB)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor in a compact SSOP-4 package. Key electrical parameters include a maximum collector-emitter voltage of 80V, a forward current rating of 50mA, and a nominal forward voltage of 1.2V. The device provides high isolation with a rated insulation voltage of 3750 Vrms. It operates within a temperature range of -55°C to +100°C and exhibits rise/fall times of 6µs/8µs.
Feature Summary
- Integrates an infrared LED with an NPN phototransistor for signal transmission across isolated circuits
- Provides robust electrical isolation suitable for noise-sensitive applications
- Designed for surface mount installation in space-constrained environments
Applications
- Signal isolation in industrial control systems
- Interface circuits for microcontrollers and logic devices
- Power supply feedback loops requiring galvanic isolation
Procurement Notes
Verify the specific suffix (TB) against the manufacturer's latest datasheet to confirm pinout and packaging dimensions. Ensure compliance with RoHS directives if required by your region. Confirm moisture sensitivity level handling procedures during assembly to prevent package damage. Cross-reference the part number with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when a single-channel transistor output is required for DC or low-frequency AC input signals. Consider the 3750 Vrms isolation rating for safety-critical designs. Evaluate the 80V output voltage limit against load requirements. The SSOP-4 package is appropriate for automated surface mount assembly processes.
Part Context
This part belongs to the EL3H4-G series of transistor output optocouplers from Everlight. The series is designed for general-purpose isolation applications. Variations in suffixes typically denote packaging type or environmental compliance status rather than functional differences. The EL3H4(A)(TB)-VG specifically utilizes the SSOP-4 form factor.
Replacement Considerations
Direct substitutes may include other single-channel transistor optocouplers with similar isolation ratings and package types. Verify pin compatibility and electrical characteristics such as CTR and breakdown voltages before substitution.
