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EL3H7(B)(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)：130% @ 5mA
- Current Transfer Ratio (Max)：260% @ 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(B)(EA)-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 green compound within a 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 CSA approved for safety standards.
Feature Summary
- High isolation voltage capability between input and output circuits
- CSA approved for safety compliance
- Green compound encapsulation for optical coupling
Applications
- General purpose signal isolation
- Microprocessor system interfacing
- Industrial control circuit isolation
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin associated with the suffix B, as this determines the gain characteristics. Confirm the package variant matches the EA designation. Ensure compatibility with RoHS directives if required by the target application environment. Cross-reference datasheet electrical limits against system requirements before integration.
Selection Notes
Select this component when high isolation voltage is required in a compact surface-mount form factor. The NPN phototransistor output suits applications requiring standard switching speeds. Consider the operating temperature range for harsh environments. Verify pin configuration compatibility with existing PCB footprints during the design phase.
Part Context
This part belongs to the EL3H7-G series of transistor output optocouplers. The series includes various CTR bins and packaging options such as tubes and reels. The EL3H7 family is designed for general-purpose isolation applications requiring reliable performance across wide temperature ranges.
Replacement Considerations
Direct substitutes include other EL3H7 variants with matching CTR bins and package types. Verify pinout compatibility before substitution. Alternative brands may require schematic adjustments due to differing electrical parameters.
