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ELD3H7(TA)-V
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 2CH TRANS 8-SMD
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Number of Channels：2
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：50% @ 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)：60 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：8-SMD
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Overview
The ELD3H7(TA)-V is a dual-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an NPN phototransistor output with a maximum collector-emitter voltage of 80V and a continuous collector current of 50mA per channel. The device provides high isolation voltage of 3750 Vrms between input and output circuits. Key electrical parameters include a typical rise time of 5µs and fall time of 3µs, with a current transfer ratio ranging from 50% to 600%. It operates within a temperature range of -55°C to +110°C and is available in compact SSOP packages.
Feature Summary
- Dual-channel configuration for independent signal isolation
- High insulation voltage capability for safety-critical applications
- Low saturation voltage for efficient switching performance
- Wide operating temperature range for harsh environments
Applications
- Industrial automation control systems
- Power supply feedback loops
- Communication interface isolation
- Microcontroller input/output isolation
Procurement Notes
Verify the specific package variant (8-pin or 16-pin SSOP) required for your PCB layout before ordering. Confirm that the dual-channel specification matches your circuit design needs, as single-channel alternatives exist within the EL3H7 family. Ensure compatibility with your reflow soldering profile requirements for surface-mount assembly.
Selection Notes
Select this component when dual-channel isolation is necessary within a compact footprint. Compare the 50-600% CTR range against your load requirements to ensure sufficient gain. Consider the 80V output voltage limit for high-side or low-side switching applications. Verify thermal management capabilities given the wide operating temperature range.
Part Context
This part belongs to Everlight's ultra-small SSOP phototransistor optocoupler series. It shares functional similarities with the EL3H7 family but offers dual-channel integration in a smaller form factor. The TA suffix typically indicates tape-and-reel packaging for automated assembly processes.
Replacement Considerations
EL3H7(A)-G serves as a single-channel alternative if only one isolated channel is needed. EL3H7(D)(EA)-G offers similar specifications in a different package style. Verify pinout compatibility and electrical parameters before substituting any cross-model components.
