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EL3H7(A)(EA)-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)：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)(EA)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor detector, encapsulated in a green compound within a 4-SSOP package. The device provides an isolation voltage of 3750 Vrms and operates within a temperature range of -55°C to +110°C. Key electrical parameters include a collector-emitter saturation voltage of 200mV maximum, a DC forward current of 50mA maximum, and a typical rise/fall time of 5µs/3µs. The Current Transfer Ratio ranges from 80% to 160% at a forward current of 5mA.
Feature Summary
- Provides high isolation voltage between input and output terminals
- Utilizes an infrared LED coupled with an NPN phototransistor for signal transmission
- Designed for surface mount installation in compact applications
Applications
- Industrial control systems requiring galvanic isolation
- Signal isolation in microprocessor-based circuits
- Power supply feedback loops
Procurement Notes
Verify the specific suffix (EA) against the manufacturer's latest datasheet to confirm pinout and packaging configuration. Ensure compliance with RoHS3 standards as indicated in official documentation. Cross-reference the Mouser part number 1080-1504-ND or DigiKey identifiers for accurate sourcing. Confirm availability status as supply conditions may vary by region and distributor.
Selection Notes
Select this component when a single channel of isolation with NPN phototransistor output is required. The 4-SSOP package suits space-constrained designs. Verify that the 3750 Vrms isolation rating meets system safety requirements. Consider the operating temperature range of -55°C to +110°C for environmental suitability. Check if the CTR range of 80-160% aligns with drive circuit capabilities.
Part Context
This device belongs to the EL3H7-G series of transistor output optocouplers. The series is characterized by its use of green encapsulant and standard SSOP packaging options. It serves as a general-purpose isolation component for digital signal transmission across isolated barriers.
Replacement Considerations
Consult the official EL3H7-G series datasheet for direct pin-compatible alternatives. Verify functional equivalence regarding isolation voltage and output type before substitution.
