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EL3H7(E)(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)：100% @ 5mA
- Current Transfer Ratio (Max)：200% @ 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(E)(EA)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector, encapsulated in a green compound within a surface-mount SSOP-4 package. The device provides an isolation voltage of 3750 Vrms and operates across a temperature range of -55°C to +110°C. Key electrical parameters include a collector-emitter saturation voltage of 200 mV (max), a forward current of 50 mA (max), and a collector output voltage of 80 V (max). The specific suffix indicates a Current Transfer Ratio (CTR) range of 100% to 200% at a forward current of 5 mA.
Feature Summary
- High isolation voltage capability between input and output circuits
- Compact surface-mount SSOP-4 packaging for automated assembly
- Wide operating temperature range suitable for industrial environments
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Communication interface isolation
Procurement Notes
Verify the specific CTR binning requirements against the datasheet specifications for the EA suffix. Confirm that the SSOP-4 footprint matches the design layout. Ensure compliance with RoHS directives as indicated in official documentation. Check for any lead-free soldering profile restrictions during procurement validation.
Selection Notes
Select this component when a compact form factor is required alongside high isolation voltage standards. The NPN phototransistor output is suitable for digital switching applications. Consider the 100-200% CTR range for gain stability in signal transmission paths. Evaluate thermal management needs given the wide operating temperature specification.
Part Context
This part belongs to the EL3H7-G series of transistor output optocouplers from Everlight Electronics. The series is characterized by its use of green encapsulant and standard SSOP-4 or SOIC-4 packages. Variations within the series typically differ by CTR ranges and packaging formats, such as tube or reel configurations.
Replacement Considerations
Direct replacements must match the 3750 Vrms isolation rating and SSOP-4 package dimensions. Verify equivalent CTR performance and NPN output type. Cross-reference pinouts to ensure Anode, Cathode, Emitter, and Collector alignment.
