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EL3H7(K)(TA)-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)：160% @ 10mA
- Current Transfer Ratio (Max)：320% @ 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(K)(TA)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output with a maximum collector current of 50 mA and a collector-emitter voltage rating of 80 V. The device provides an isolation voltage of 3750 Vrms and operates within a temperature range of -55°C to +110°C. The Current Transfer Ratio (CTR) ranges from 160% to 320% at a forward current of 10 mA. It is housed in a compact 4-SSOP package.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes an NPN phototransistor for digital signal transmission
- Designed for surface-mount assembly in compact form factors
Applications
- Industrial control systems requiring signal isolation
- Microcontroller interface circuits
- Power supply feedback loops
Procurement Notes
Verify the specific CTR binning and packaging configuration against the manufacturer's latest datasheet before procurement. Confirm that the 4-SSOP footprint matches the target PCB design. Ensure compliance with RoHS directives if required by the end application. Cross-reference part numbers carefully as suffixes indicate specific performance grades.
Selection Notes
Select this component when a small footprint and high isolation voltage are required for low-speed digital signaling. The wide operating temperature range supports harsh environments. Compare CTR specifications against other variants in the EL3H7 series to ensure compatibility with drive circuit requirements. Verify package dimensions against available board space constraints.
Part Context
This component belongs to the EL3H7 series of ultra-small SSOP optocouplers. The series offers various CTR bins and packaging options to suit different design needs while maintaining consistent isolation characteristics and physical dimensions across the family.
Replacement Considerations
Direct substitutes include EL3H7(B)(TA)-VG, EL3H7(C)(TB)-VG, and EL3H7(K)(EB)-VG. Verify that replacement parts match the required CTR range and package type. Ensure isolation voltage ratings remain compatible with the system design.
