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EL3H7(A)(TB)-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)(TB)-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 maximum collector-emitter voltage of 80V, a maximum collector current of 50mA, and a typical forward voltage of 1.2V at a maximum forward current of 50mA. The Current Transfer Ratio (CTR) ranges from 80% to 160%. It is housed in a compact surface-mount package.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes an NPN phototransistor for digital signal transmission
- Designed for wide industrial operating temperature environments
Applications
- Industrial control systems requiring galvanic isolation
- Signal isolation in microprocessor-based circuits
- Power supply feedback loops
Procurement Notes
Verify the specific CTR binning (80-160%) required for your application against the datasheet specifications. Confirm that the SSOP package dimensions match your PCB footprint design. Ensure the supplier provides original manufacturer documentation to validate authenticity and traceability before finalizing orders.
Selection Notes
Select this component when a standard NPN output with moderate speed and high isolation voltage is needed. Compare the 80-160% CTR range against circuit gain requirements. Consider the thermal management capabilities given the wide operating temperature range and surface-mount form factor for space-constrained designs.
Part Context
This part belongs to the EL3H7 series of transistor output optocouplers. The suffix indicates specific packaging and binning characteristics. It serves as a general-purpose isolation device suitable for replacing older DIP variants in modern surface-mount assembly processes while maintaining similar electrical performance profiles.
Replacement Considerations
Direct substitutes may include other EL3H7 variants with different CTR bins or packaging options, such as EL3H7(B)(TB)-VG or EL3H7(C)(TB)-VG, provided the CTR range meets system requirements. Verify pinout compatibility and insulation clearance distances when cross-referencing.
