EL817(M)(A))-V Optoisolator Equivalent & Substitute Parts

Part Overview

The EL817(M)(A))-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 through-hole package. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance, isolation voltage, output characteristics, and package form factor are maintained across different manufacturers. This reference enables component selection flexibility while preserving circuit functionality and reliability.

Substiute Parts

EL817(M)(A))-V

Everlight Electronics Co LtdIn Stock: 792EL817(M)(A))-V Datasheet

Current PartRFQ

140817141110

Würth ElektronikIn Stock: 953140817141110 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EL817(M)(A))-V is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Isolation voltage: 5000Vrms (exact match required)
• Number of channels: 1 (single channel configuration)
• Output type: Transistor (phototransistor output stage)
• Current transfer ratio range: 80% to 160% @ 5mA (input-to-output current transfer specification)
• Maximum output voltage: 35V
• Output current capacity: 50mA per channel
• Vce saturation: 200mV maximum

Mechanical Equivalence Criteria:

• Package form factor: 4-DIP with 0.400" (10.16mm) pitch
• Mounting technology: Through-hole configuration
• Pin count and spacing: Compatible with 4-DIP footprint

Compliance Equivalence Criteria:

• RoHS3 compliance status
• Moisture sensitivity level: MSL 1 (unlimited)
• Input type: DC

Parts meeting all these parameters are classified as direct parametric equivalents and may be substituted without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (EL817(M)(A))-V): The Everlight Electronics EL817(M)(A))-V is the specified component with 686 units in current inventory. This part carries Active product status, full RoHS3 compliance, and REACH unaffected classification. Selection of this part requires no additional qualification.

Substitute Selection (140817141110): The Würth Elektronik 140817141110 is a parametric equivalent optoisolator meeting all electrical and mechanical specifications of the EL817(M)(A))-V. This part is also Active status with RoHS3 compliance and REACH unaffected designation. Current inventory availability is 858 units. The substitute part is suitable for direct replacement in applications where the EL817(M)(A))-V is specified, provided that:

• Circuit board PCB footprint accommodates 4-DIP through-hole mounting
• Supplier device package designation (4-DIP-M for Würth vs. 4-DIP for Everlight) does not conflict with procurement specifications
• No design-specific requirements mandate Everlight manufacturer origin

Both parts are classified as Active products with identical compliance certifications, enabling selection based on availability, lead time, and cost considerations.

Frequently Asked Questions (FAQ)

Q: Can the 140817141110 (Würth Elektronik) be used as a direct replacement for the EL817(M)(A))-V (Everlight)?

A: Yes. The 140817141110 meets all parametric equivalence criteria including isolation voltage (5000Vrms), current transfer ratio (80-160% @ 5mA), output characteristics (35V maximum, 50mA per channel), temperature range (-55°C to 110°C), and 4-DIP through-hole package form factor. Both parts carry identical RoHS3 compliance and MSL 1 ratings.

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

A: The rise and fall time values are specified in reverse order between manufacturers. EL817(M)(A))-V specifies 4µs rise / 3µs fall, while 140817141110 specifies 3µs rise / 4µs fall. Both values fall within equivalent performance ranges for typical optoisolator applications.

Q: What is the significance of the supplier device package designation difference (4-DIP vs. 4-DIP-M)?

A: The 4-DIP-M designation for the Würth part indicates the supplier's internal package classification. Both parts use identical 4-DIP physical form factor with 0.400" (10.16mm) pitch. The "-M" suffix does not affect mechanical compatibility or electrical performance.

Q: Do both parts support the same forward voltage specifications?

A: The forward voltage (Vf) specifications are nearly identical: EL817(M)(A))-V at 1.2V typical and 140817141110 at 1.24V typical. Both parts specify 60mA maximum DC forward current. These minor variations are within normal manufacturing tolerance and do not affect circuit functionality.

Q: Are there any compliance or certification differences between these parts?

A: Both parts carry identical compliance certifications: RoHS3 compliant, MSL 1 (unlimited moisture sensitivity), and REACH unaffected status. ECCN and HTSUS classifications are identical. No compliance barriers exist to substitution.

Q: What is the maximum output current capacity for each part?

A: Both the EL817(M)(A))-V and 140817141110 support 50mA output current per channel with a maximum output voltage of 35V and Vce saturation of 200mV maximum.

Q: Can these parts be used in applications requiring -55°C to 110°C operation?

A: Yes. Both parts specify identical operating temperature ranges of -55°C to 110°C, enabling use in industrial and extended temperature applications.