EL817-V Optoisolator Equivalent & Substitute Parts

Part Overview

The EL817-V is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides galvanic isolation up to 5000Vrms with a single channel configuration in a 4-DIP package. The device is classified as Active product status with 926 units currently in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers. This reference enables component selection based on parametric compatibility, inventory availability, and supply chain considerations.

Substiute Parts

EL817-V

Everlight Electronics Co LtdIn Stock: 957EL817-V Datasheet

Current PartRFQ

140817140010

Würth ElektronikIn Stock: 1192140817140010 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL817-V are identified based on strict parametric equivalence. The following criteria determine substitution eligibility:

Critical Parameters (Must Match Exactly):

• Voltage - Isolation: 5000Vrms
• Number of Channels: 1
• Output Type: Transistor
• Package / Case: 4-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

Functional Parameters (Must Match Exactly):

• Current Transfer Ratio (Min): 50% @ 5mA
• Current Transfer Ratio (Max): 600% @ 5mA
• Voltage - Output (Max): 35V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 200mV
• Operating Temperature Range: -55°C ~ 110°C

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Input Type: DC
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 140817140010 from Würth Elektronik meets all critical and functional parameters, enabling direct substitution in applications requiring EL817-V functionality.

Parameter Comparison

Engineering Selection Recommendations

Both the EL817-V and 140817140010 are Active product status components with ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). Selection between these parts is based on:

Availability: EL817-V has 926 units in stock; 140817140010 has 1172 units in stock.

Parametric Equivalence: All critical electrical parameters, isolation voltage, output characteristics, and operating temperature ranges are identical. Rise and fall times are equivalent with reversed sequence notation (4µs/3µs versus 3µs/4µs).

Compliance: Both parts meet ROHS3 requirements and carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications.

Package Compatibility: Both components use identical 4-DIP (0.300", 7.62mm) through-hole packaging, enabling direct PCB footprint compatibility.

Selection should prioritize inventory availability and supply chain lead times. No additional testing or verification is required for parametric substitution.

Frequently Asked Questions (FAQ)

Q: Can 140817140010 replace EL817-V in existing designs?

A: Yes. The 140817140010 meets all parametric requirements for direct substitution. Identical isolation voltage (5000Vrms), output characteristics (35V max, 50mA per channel), saturation voltage (200mV max), and operating temperature range (-55°C to 110°C) enable direct replacement. Package and mounting type are identical.

Q: Are there differences in rise and fall times between these parts?

A: Rise and fall times are specified as 4µs and 3µs for EL817-V, and 3µs and 4µs for 140817140010. Both values fall within the same timing envelope and do not affect functional substitution for standard optoisolator applications.

Q: What is the significance of Current Transfer Ratio specifications?

A: Current Transfer Ratio (CTR) defines the ratio of output collector current to input LED current. Both parts specify 50% minimum and 600% maximum at 5mA input current. This parameter determines signal transmission efficiency and must match for functional equivalence.

Q: Do packaging differences affect substitution?

A: No. Both parts use 4-DIP (0.300", 7.62mm) through-hole packages. PCB footprints, lead spacing, and mounting procedures are identical.

Q: Are compliance certifications equivalent?

A: Yes. Both parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). ECCN and HTSUS classifications are identical, enabling equivalent regulatory and supply chain treatment.

Q: What is the maximum output current per channel?

A: Both parts support 50mA maximum output current per channel with 35V maximum output voltage rating.