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EL3H7(A)-G
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SSOP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：80% @ 5mA
- Current Transfer Ratio (Max)：160% @ 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(A)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an NPN phototransistor output with a current transfer ratio ranging from 80% to 160%. The device provides an insulation voltage of 3750 Vrms and 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 forward current of 20mA. The component is housed in a 4-SSOP surface-mount package.
Feature Summary
- Provides high-voltage isolation capability through a 3750 Vrms insulation rating between input and output circuits.
- Utilizes an NPN phototransistor output structure for reliable signal transmission in digital switching applications.
- Designed for wide operational temperature environments, supporting functionality from -55°C to +110°C.
Applications
- Industrial control systems requiring galvanic isolation
- Solid-state relay driver circuits
- Microcontroller interface isolation
Procurement Notes
Verify the specific suffix designation against official Everlight documentation to ensure correct Current Transfer Ratio binning. Confirm that the 4-SSOP package dimensions align with PCB layout requirements. Check RoHS compliance status as indicated in the latest datasheet revision. Ensure ordering quantities match the manufacturer's standard tube packaging specifications.
Selection Notes
Select this component when a standard CTR range of 80-160% meets circuit design requirements. Consider the 18us rise and fall times for signal integrity in moderate-speed applications. Evaluate the 4-SSOP footprint availability during mechanical design phases. Compare against other EL3H7 variants if different CTR bins or packaging formats are required.
Part Context
This part belongs to the EL3H7-G series of transistor output optocouplers. The series offers various CTR options distinguished by alphabetical suffixes. The EL3H7(A)-G specifically denotes the 80-160% CTR bin. The family shares common electrical characteristics regarding isolation voltage and operating temperatures across different variants.
Replacement Considerations
Direct substitutes within the same series include EL3H7(B)-G, EL3H7(C)-G, EL3H7(E)-G, and EL3H7(H)-G, which differ primarily in Current Transfer Ratio specifications. Verify pinout compatibility and thermal performance before substitution.
