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EL3H7(A)(EA)-VG
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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)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides an isolation voltage of 3750 Vrms. The device operates within a temperature range of -55°C to +110°C. Key electrical parameters include a collector-emitter saturation voltage of 100 mV maximum, a forward current of 20 mA, and a forward voltage of 1.2 V. The unit weight is 260 mg.
Feature Summary
- Provides high-voltage isolation capability for signal transmission between isolated circuits.
- Utilizes an NPN phototransistor output configuration for digital switching applications.
- Designed for operation across extended industrial temperature ranges.
Applications
- Industrial control systems requiring galvanic isolation
- Signal interface circuits in automation equipment
- Power supply feedback loops
Procurement Notes
Verify the specific suffix (EA) against the manufacturer's latest datasheet to confirm package dimensions and pinout compatibility. Confirm RoHS compliance status directly with the supplier documentation. Ensure the operating temperature range meets the environmental requirements of the final assembly. Check for any recent lifecycle changes or obsolescence notices from Everlight Electronics.
Selection Notes
Select this component when a compact SSOP-4 package is required for space-constrained designs. Consider the 3750 Vrms isolation rating for safety-critical interfaces. Evaluate the CTR range and switching speeds against the system timing requirements. Compare alternative packages if surface mount constraints differ from the standard SSOP form factor.
Part Context
This part belongs to the EL3H7 family of ultra-small SSOP optocouplers. The family offers various current transfer ratio grades and packaging options. The EL3H7 series is designed for general-purpose isolation tasks where small footprint and high reliability are prioritized. Other variants may differ in CTR specifications or terminal finishes.
Replacement Considerations
Direct substitutes must match the 4-pin SSOP package and NPN phototransistor output type. Verify that replacement parts offer equivalent 3750 Vrms isolation and compatible thermal ratings. Cross-reference pinouts to ensure functional interchangeability without PCB redesign.
