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EL3H7(J)(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)：100% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- 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(J)(TA)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides 3750 Vrms isolation voltage. The device 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 50mA. The Current Transfer Ratio (CTR) is specified between 100% and 200%. It is supplied in a surface-mount SSOP-4 package.
Feature Summary
- Provides high-voltage electrical isolation via an internal infrared LED and NPN phototransistor pair.
- Designed for surface-mount assembly using a compact four-pin SSOP package.
- Capable of operating reliably across extended industrial temperature ranges.
Applications
- Signal isolation in microprocessor control systems
- Switching power supply feedback loops
- Industrial communication interface isolation
Procurement Notes
Verify the specific CTR binning requirements against the manufacturer's datasheet, as the J suffix indicates a 100-200% range. Confirm that the SSOP-4 package dimensions match your PCB footprint design. Ensure compliance with RoHS directives if required by your manufacturing standards. Cross-reference the part number with official distributor catalogs to confirm current availability status before finalizing procurement plans.
Selection Notes
Select this component when a single channel of galvanic isolation is required for low-speed digital signals. The NPN phototransistor output is suitable for standard logic interfacing. Consider the 3750 Vrms isolation rating for safety compliance in mains-connected applications. Verify that the 50mA collector current capability meets the load requirements of the receiving circuitry without exceeding saturation limits.
Part Context
This part belongs to the EL3H7 series of transistor output optocouplers from Everlight Electronics. The series is characterized by its small form factor and robust isolation capabilities. Variants within the series differ primarily by packaging style and Current Transfer Ratio specifications. The EL3H7 line is widely used in general-purpose isolation applications requiring reliable signal transmission across potential barriers.
Replacement Considerations
Direct substitutes may include other single-channel transistor output optocouplers with similar pinouts and isolation ratings. Verify compatibility regarding package dimensions, CTR ranges, and switching speeds. Always consult the latest manufacturer documentation to ensure functional equivalence and regulatory compliance before swapping components.
