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EL3H4(A)(TA)-G
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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)(TA)-G is a single-channel transistor output optoisolator manufactured by Everlight Electronics. It features an NPN phototransistor output and operates with a forward current of up to 50 mA. The device provides an isolation voltage of 3750 Vrms and supports a maximum output voltage of 80 V. Electrical characteristics include a typical rise time of 6 µs and fall time of 8 µs, with a maximum power dissipation of 200 mW. It functions within a temperature range of -55°C to 100°C and is housed in a surface-mount 4-SSOP package.
Feature Summary
- Provides electrical isolation between input and output circuits using an LED and phototransistor configuration.
- Features UL approval for safety compliance in isolated power supply applications.
- Designed for surface-mount assembly to facilitate automated PCB manufacturing processes.
Applications
- Isolated signal transmission in industrial control systems
- Gate drive isolation for power switching devices
- Microcontroller interface isolation for digital communication
Procurement Notes
Verify the specific suffix (A)(TA)-G against the manufacturer's latest datasheet to confirm pinout and electrical tolerances. Ensure the component meets required insulation coordination standards for the target application. Check for RoHS compliance documentation if environmental regulations apply. Confirm availability status as distribution channels may vary.
Selection Notes
Select this component when a single-channel transistor output isolator is required with high isolation voltage capabilities. Consider the 3750 Vrms rating for safety-critical interfaces. Evaluate the 6 µs/8 µs switching speeds against system timing requirements. Ensure the 4-SSOP package fits the available board space and thermal management constraints.
Part Context
This part belongs to the EL3H4 series of transistor output optocouplers from Everlight Electronics. The series is designed for general-purpose isolation tasks where moderate speed and high reliability are needed. The specific model variant indicates particular binning or packaging specifications defined by the manufacturer for consistent performance across production batches.
Replacement Considerations
Cross-reference with other single-channel transistor output optocouplers offering similar 3750 Vrms isolation and SSOP-4 packaging. Verify that substitute components match the CTR ranges and switching times to ensure circuit compatibility without redesign.
