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EL3H7(D)-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)：300% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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(D)-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 compact 4-pin SSOP package. The device provides high isolation voltage of 3750 Vrms between input and output terminals. It operates within a temperature range of -55°C to +110°C. The component is supplied in tube packaging with a factory pack quantity of 100 units.
Feature Summary
- High isolation voltage capability of 3750 Vrms between input and output circuits
- Compact 4-pin surface mount SSOP package design for space-constrained applications
- Wide operating temperature range supporting extreme environmental conditions
- CSA approved for enhanced safety compliance in industrial equipment
Applications
- Industrial automation control systems requiring electrical isolation
- Consumer appliances needing signal transmission across isolated boundaries
- Power supply feedback loops for voltage regulation
- Microcontroller interface circuits for noise immunity
Procurement Notes
Verify current availability status as the EL3H7(D)-G may be subject to limited supply or discontinuation. Confirm RoHS compliance details through official documentation before integration. Check for alternative packages if reel or cut tape formats are required instead of tubes. Ensure ECAD models match the specific pin configuration for PCB layout accuracy.
Selection Notes
Select this component when high isolation voltage and wide temperature operation are critical. The NPN phototransistor output suits digital switching applications. Consider the SSOP package dimensions for board space limitations. Verify that the CTR range meets system requirements for reliable signal transfer under varying conditions.
Part Context
The EL3H7-G series represents Everlight's ultra-small SSOP phototransistor optocouplers. This series combines infrared emission with NPN detection for efficient signal coupling. The family includes various variants distinguished by packaging and CTR specifications. The EL3H7(D)-G specifically denotes the tube-packaged version within this lineup.
Replacement Considerations
Check for EL3H7(A)-G or EL3H7(C)(EA)-G as potential functional equivalents within the same series. Verify package compatibility and pinout alignment before substitution. Confirm that replacement parts meet the same isolation voltage and temperature ratings.
