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ELD217(TA)
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 2CH TRANS 8-SOP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Number of Channels：2
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：100% @ 1mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：5µs, 4µs
- Rise / Fall Time (Typ)：1.6µs, 2.2µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP
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Overview
The ELD217(TA) is a dual-channel transistor output optocoupler manufactured by Everlight Electronics. It features an 8-pin SOP package designed for surface mount technology. Key electrical parameters include a collector-emitter voltage of 80V, a maximum forward current of 60mA, and a typical forward voltage of 1.2V to 1.5V. The device provides an isolation voltage of 3750 VRMS and supports a maximum collector current of 50mA with a saturation voltage of 400mV. The current transfer ratio reaches up to 100%, and the rise time is specified at 1.6 microseconds.
Feature Summary
- Dual-channel configuration within a compact 8-pin SOP package
- High insulation voltage capability for circuit isolation
- NPN phototransistor output structure
- Compatible with automatic placement equipment
Applications
- Indicator circuits
- Backlighting for LCD displays
- Switch and symbol illumination
- Telephone and fax equipment interfaces
Procurement Notes
Verify the specific suffix (e.g., TA, D, V) against the official datasheet to ensure correct packaging and compliance attributes. Confirm RoHS and REACH status as these may vary by manufacturing batch or region. Check for any product change notifications regarding pinout or material composition updates before finalizing procurement specifications.
Selection Notes
Select this component when dual-channel isolation is required in a small form factor. Ensure the input current does not exceed 60mA and the output voltage withstands up to 80V. Verify that the 1.6us rise time meets the signal speed requirements of the application. Confirm compatibility with infrared or vapor phase reflow soldering processes during assembly planning.
Part Context
This part belongs to the ELD217 series of transistor output optocouplers from Everlight. It is distinct from single-channel variants and LED products like the 19-217 series. The device serves as a galvanic isolation barrier between low-voltage control circuits and higher-voltage load sides in electronic systems.
Replacement Considerations
Consult official substitution lists for compatible parts such as EL205(TA) or EL206(TA). Verify pinout compatibility and electrical parameter equivalence before replacing the component in existing designs.
