IL440-5 Optoisolator Equivalent & Substitute Parts

Part Overview

The IL440-5 is a 5.3kVrms optoisolator with triac output manufactured by Vishay Semiconductor Opto Division in a 6-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The IL440-5 provides galvanic isolation for AC switching applications with a single triac output channel and no zero-crossing detection circuit.

Substiute Parts

IL440-5

Vishay Semiconductor Opto DivisionIn Stock: 5312IL440-5 Datasheet

Current PartRFQ

EL3021

Everlight Electronics Co LtdIn Stock: 66589EL3021 Datasheet

MFR RecommendedRFQ

EL3022

Everlight Electronics Co LtdIn Stock: 24994EL3022 Datasheet

MFR RecommendedRFQ

EL3023

Everlight Electronics Co LtdIn Stock: 83402EL3023 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IL440-5 are qualified based on the following criteria:

• Package Compatibility: All substitutes use 6-DIP (0.300", 7.62mm) through-hole packaging, ensuring direct PCB footprint compatibility
• Output Configuration: All substitutes feature single-channel triac output with no zero-crossing circuit, matching the functional topology
• Isolation Voltage: Substitute parts provide 5000Vrms isolation, which is within the operational envelope of the IL440-5's 5300Vrms specification
• On-State Current: All substitutes maintain 100 mA maximum on-state current (It (RMS)), matching the main part
• Off-State Voltage: All substitutes maintain 400 V off-state voltage rating
• Environmental Compliance: All substitutes are ROHS3 compliant with MSL 1 rating and EAR99 classification
• Product Status: All substitute parts are active products with current manufacturing availability

The three Everlight Electronics substitutes (EL3021, EL3022, EL3023) differ primarily in LED trigger current specifications and hold current characteristics, allowing selection based on specific circuit drive requirements.

Parameter Comparison

Engineering Selection Recommendations

All three Everlight Electronics optoisolators (EL3021, EL3022, EL3023) are qualified substitutes for the obsolete IL440-5 based on electrical and mechanical compatibility within the specified parameters.

EL3022 provides the closest match to the IL440-5 specification, with identical LED trigger current (10mA maximum) and maintains all critical electrical parameters within acceptable ranges for direct replacement applications.

EL3021 accommodates higher LED trigger current requirements (15mA maximum) and is suitable for applications requiring increased drive capability from the input circuit.

EL3023 is specified for lower LED trigger current (5mA maximum) and is appropriate for applications with limited input drive capacity or requiring reduced power consumption in the input stage.

All substitute parts carry active product status with established manufacturing availability. The Everlight Electronics parts feature expanded operating temperature range (-55°C to 100°C) compared to the IL440-5 (-40°C to 100°C), providing enhanced performance margin in low-temperature environments. All parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage processes.

Frequently Asked Questions (FAQ)

Q: Can EL3021, EL3022, and EL3023 be used interchangeably with IL440-5?

A: Yes, all three Everlight Electronics parts are mechanically and electrically compatible substitutes. Selection between them depends on the specific LED trigger current requirement of your input circuit. EL3022 matches the IL440-5 trigger current specification (10mA) most closely.

Q: What is the difference between EL3021, EL3022, and EL3023?

A: The primary difference is the maximum LED trigger current specification: EL3021 (15mA), EL3022 (10mA), and EL3023 (5mA). All other electrical parameters remain identical. Choose based on your input drive circuit capability.

Q: Are the substitute parts pin-compatible with IL440-5?

A: Yes. All substitute parts use the same 6-DIP (0.300", 7.62mm) through-hole package, ensuring direct PCB footprint and pin compatibility.

Q: What is the isolation voltage difference between IL440-5 and the substitutes?

A: The IL440-5 provides 5300Vrms isolation, while the Everlight Electronics substitutes provide 5000Vrms. This 300Vrms difference remains within acceptable operational margins for most AC switching applications.

Q: Do the substitute parts have better temperature performance than IL440-5?

A: Yes. The Everlight Electronics substitutes operate from -55°C to 100°C, compared to the IL440-5 range of -40°C to 100°C, providing an additional 15°C margin at low temperatures.

Q: Are all parts ROHS3 compliant?

A: Yes. The IL440-5 and all three substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.