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ELD217
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 2CH TRANS 8-SOP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tube
- 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 is a dual-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output with a maximum collector-emitter voltage of 80 V and a peak forward current rating of 60 mA. The device provides high isolation capability with an insulation voltage of 3750 Vrms. Electrical characteristics include a maximum current transfer ratio of 100%, a forward voltage of 1.5 V, and a power dissipation of 250 mW. Timing parameters specify a rise time of 1.6 µs and a fall time of 2.2 µs. The component operates within a temperature range of -55°C to +110°C.
Feature Summary
- Dual-channel configuration for independent signal isolation
- High isolation voltage between input and output circuits
- NPN phototransistor output structure
- Wide operating temperature range
Applications
- Industrial control systems requiring galvanic isolation
- Signal transmission in noisy electrical environments
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify the specific suffix (e.g., TA, TB) against project requirements as packaging and reel specifications vary. Confirm RoHS compliance status through official documentation before integration. Ensure thermal management aligns with the 250 mW power dissipation limit during operation. Cross-reference pinout diagrams with PCB layout designs to prevent installation errors.
Selection Notes
Select this component when dual-channel isolation is required within a single package footprint. Consider the 80 V collector-emitter voltage rating for low-voltage switching applications. Evaluate the 1.6 µs rise time for compatibility with signal frequencies. Verify that the SOP-8 package dimensions fit the available board space constraints.
Part Context
The ELD217 belongs to Everlight's family of transistor output optocouplers designed for general-purpose isolation. It utilizes an infrared LED coupled to NPN phototransistors. The series offers variations in packaging and electrical ratings to suit different industrial and consumer electronics needs while maintaining standard interface compatibility.
Replacement Considerations
Consult official substitution lists for equivalent dual-channel optocouplers. Verify pin compatibility and electrical parameter overlaps before swapping components. Ensure replacement parts meet the same isolation voltage and temperature range requirements.
