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EL3H7(A)(TB)-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)(TB)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and an NPN phototransistor detector within a compact surface-mount package. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms, ensuring safety in high-voltage environments. Key electrical parameters include a maximum collector-emitter voltage of 80 V and a peak forward current rating of 50 mA. The unit operates reliably across a wide temperature range from -55°C to +110°C, supporting robust industrial applications.
Feature Summary
- Provides galvanic isolation between input and output circuits using optical coupling technology.
- Features an NPN phototransistor output suitable for digital signal transmission.
- Encapsulated in a small outline package designed for automated surface-mount assembly.
Applications
- Industrial control systems requiring signal isolation
- Computer peripheral interface circuits
- Power supply feedback loops
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin designation associated with the suffix. Confirm that the tape-and-reel packaging format matches the production line requirements. Ensure compliance with RoHS directives and check for any lead-free soldering process constraints during integration.
Selection Notes
Select this component when a standard NPN output configuration is required for general-purpose isolation. Compare CTR specifications against other variants in the EL3H7 series to match circuit gain requirements. Verify package dimensions against PCB footprint constraints before finalizing the design.
Part Context
This part belongs to the EL3H7-G series of phototransistor optocouplers. The series offers various CTR ranges and packaging options to suit different application needs while maintaining consistent isolation voltage ratings and thermal performance characteristics defined by the manufacturer.
Replacement Considerations
Cross-reference with EL3H7(A)-G for tube-packaged equivalents or EL3H7(B)(TB)-G for alternative CTR bins. Verify pinout compatibility and package width differences before substituting.
