EL817M(C)-V Optoisolator Equivalent & Substitute Parts

Part Overview

The EL817M(C)-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 part is currently in active production status with 1099 pieces available in stock. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory constraints, or supply chain optimization while maintaining identical electrical and mechanical specifications.

Substiute Parts

EL817M(C)-V

Everlight Electronics Co LtdIn Stock: 1183EL817M(C)-V Datasheet

Current PartRFQ

140817141310

Würth ElektronikIn Stock: 1330140817141310 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EL817M(C)-V optoisolator is determined by strict equivalence across the following critical parameters:

Isolation Voltage: 5000Vrms isolation rating is the primary electrical requirement for galvanic separation applications.

Channel Configuration: Single channel (1 channel) output limits substitutes to single-channel optoisolators only.

Output Type: Transistor output configuration specifies the active switching element type.

Current Transfer Ratio: Range of 200% to 400% @ 5mA defines the optical coupling efficiency and input-output current relationship.

Output Electrical Characteristics: Maximum output voltage of 35V, output current of 50mA per channel, and Vce saturation maximum of 200mV establish the load-driving capability.

Package and Mounting: 4-DIP through-hole package with 0.400" (10.16mm) spacing is mandatory for PCB compatibility.

Temperature Range: Operating range of -55°C to 110°C defines the thermal operating envelope.

Compliance: ROHS3 compliance and MSL Level 1 are required for environmental and handling standards.

The substitute part 140817141310 from Würth Elektronik meets all these criteria with identical or equivalent parameter values.

Parameter Comparison

Engineering Selection Recommendations

Both the EL817M(C)-V and 140817141310 are active production components with ROHS3 compliance and MSL Level 1 certification. Selection between these parts is based on:

Availability and Lead Time: The EL817M(C)-V has 1099 pieces in stock, while the 140817141310 substitute has 1263 pieces available. Either part can be selected based on current inventory status and procurement timelines.

Manufacturer Preference: The EL817M(C)-V is the primary part from Everlight Electronics. The 140817141310 from Würth Elektronik is a parametric equivalent suitable for applications where Everlight supply is constrained.

Compliance Certification: Both parts meet ROHS3 requirements and carry identical MSL ratings, ensuring compatibility with standard manufacturing and storage protocols.

Electrical Performance: All critical electrical parameters are identical or equivalent. The forward voltage difference of 0.04V (1.2V vs 1.24V) and the reversed rise/fall time sequence (4µs/3µs vs 3µs/4µs) are within normal manufacturing tolerances and do not affect circuit functionality.

Package Compatibility: Both parts use identical 4-DIP through-hole packaging, ensuring direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 140817141310 be used as a direct replacement for the EL817M(C)-V?

A: Yes. The 140817141310 is a parametric equivalent with identical isolation voltage (5000Vrms), channel configuration (1 channel), output type (transistor), current transfer ratio range (200-400% @ 5mA), maximum output voltage (35V), output current (50mA), saturation voltage (200mV), operating temperature range (-55°C to 110°C), and package format (4-DIP through-hole). No circuit modifications are required.

Q: Are there differences in the forward voltage specifications?

A: The EL817M(C)-V specifies a typical forward voltage of 1.2V, while the 140817141310 specifies 1.24V. This 0.04V difference is within normal manufacturing tolerances for optoisolator LED inputs and does not affect circuit operation or performance.

Q: What is the significance of the rise and fall time values?

A: The EL817M(C)-V specifies rise time of 4µs and fall time of 3µs. The 140817141310 specifies rise time of 3µs and fall time of 4µs. Both configurations meet the switching speed requirements for standard optoisolator applications. The reversed sequence reflects different measurement methodologies between manufacturers but results in equivalent overall switching performance.

Q: Are both parts suitable for high-voltage isolation applications?

A: Yes. Both the EL817M(C)-V and 140817141310 provide 5000Vrms isolation rating, suitable for applications requiring galvanic separation between high-voltage and low-voltage circuits.

Q: What are the storage and handling requirements?

A: Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control or baking procedures are required during storage or handling.

Q: Can these parts be used in new designs or only as replacements?

A: Both parts are in active production status and can be used in new designs. The EL817M(C)-V is the primary part number, while the 140817141310 can be specified as an alternative source in design documentation.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant. The 140817141310 additionally carries REACH Unaffected status. Both parts are classified under ECCN EAR99 and HTSUS 8541.49.8000 for export and tariff purposes.