IL420-X016 Equivalent & Substitute Parts

Part Overview

The IL420-X016 is an optoisolator with triac output manufactured by Vishay Semiconductor Opto Division. This component provides galvanic isolation up to 5300Vrms with a single triac output channel in a 6-DIP package. The device is designed for applications requiring high-voltage isolation and AC load switching. As an active product with established market availability, substitute parts may be required due to supply constraints, regional availability, or specific application requirements. Equivalent alternatives must maintain compatibility across isolation voltage, output type, package configuration, and thermal operating range.

Substiute Parts

IL420-X016

Vishay Semiconductor Opto DivisionIn Stock: 2289IL420-X016 Datasheet

Current PartRFQ

FOD420TV

onsemiIn Stock: 1718FOD420TV Datasheet

MFR RecommendedRFQ

FOD4216TV

onsemiIn Stock: 2176FOD4216TV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IL420-X016 optoisolator are qualified based on the following critical parameters that determine functional compatibility:

Isolation Voltage Compatibility: The IL420-X016 provides 5300Vrms isolation. Substitute parts must maintain isolation voltage at or above 5000Vrms to ensure adequate galvanic separation in high-voltage applications.

Output Type and Channel Configuration: All qualified substitutes must feature triac output with single-channel configuration to maintain direct functional equivalence.

Package and Mounting: All substitutes must use 6-DIP through-hole packaging with identical pin spacing (0.400", 10.16mm) to ensure direct PCB compatibility without layout modifications.

Electrical Performance Parameters: Substitutes must operate within the same temperature range (-55°C to 100°C), maintain compatible off-state voltage (600V), and support the required static dV/dt rating (10kV/µs minimum).

Regulatory Compliance: All substitutes must maintain ROHS3 compliance and REACH unaffected status to meet environmental and regulatory requirements.

The following parts meet these substitution criteria: FOD420TV and FOD4216TV, both manufactured by onsemi.

Parameter Comparison

Engineering Selection Recommendations

All three optoisolators—IL420-X016, FOD420TV, and FOD4216TV—are active products with ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards. The IL420-X016 and FOD420TV are supplied in tube packaging, while FOD4216TV is supplied in bulk packaging; packaging selection depends on procurement and assembly requirements.

The IL420-X016 offers the highest isolation voltage rating (5300Vrms) and fastest turn-on time (35µs), making it the primary choice for applications requiring maximum isolation margin and rapid switching response. The onsemi FOD420TV and FOD4216TV provide 5000Vrms isolation with extended turn-on time (60µs) and reduced forward current requirements (30mA maximum versus 60mA). FOD4216TV additionally features reduced LED trigger current (1.3mA maximum versus 2mA), which may reduce driver circuit complexity in current-limited applications.

Selection between these parts should be based on specific application requirements for isolation voltage margin, switching speed, and input drive current availability. All three parts maintain identical off-state voltage, hold current, and operating temperature range, ensuring functional compatibility in standard triac output optoisolator applications.

Frequently Asked Questions (FAQ)

Q: Can FOD420TV or FOD4216TV be used as direct replacements for IL420-X016?

A: Yes, both FOD420TV and FOD4216TV are functionally compatible substitutes. All three devices feature identical 6-DIP through-hole packaging, single triac output, 600V off-state voltage, 10kV/µs static dV/dt rating, and -55°C to 100°C operating temperature range. The primary difference is isolation voltage: IL420-X016 provides 5300Vrms while FOD420TV and FOD4216TV provide 5000Vrms. Applications requiring the full 5300Vrms isolation margin should use the IL420-X016.

Q: What are the differences between FOD420TV and FOD4216TV?

A: FOD420TV and FOD4216TV are electrically identical except for LED trigger current specifications. FOD420TV has a maximum LED trigger current of 2mA, while FOD4216TV has a maximum of 1.3mA. FOD4216TV is supplied in bulk packaging, while FOD420TV is supplied in tube packaging. The reduced trigger current in FOD4216TV may simplify driver circuit design in applications with limited input current availability.

Q: Are there any performance differences in switching speed?

A: Yes. The IL420-X016 has a turn-on time of 35µs, while both FOD420TV and FOD4216TV have turn-on times of 60µs. Applications requiring faster switching response should specify the IL420-X016. For standard AC load switching applications, the 60µs turn-on time of the onsemi devices is typically acceptable.

Q: Do all three parts meet the same regulatory certifications?

A: All three parts are ROHS3 compliant and REACH unaffected. The IL420-X016 carries CQC, CSA, cUR, UR, and VDE approvals. FOD420TV and FOD4216TV carry cUL, FIMKO, UL, and VDE approvals. Both certification sets meet standard industrial and consumer application requirements.

Q: What is the difference in packaging between FOD420TV and FOD4216TV?

A: FOD420TV is supplied in tube packaging, while FOD4216TV is supplied in bulk packaging. Tube packaging is typically used for smaller quantity orders and manual assembly, while bulk packaging is used for high-volume automated assembly. Both use identical 6-DIP through-hole components with the same pin configuration.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes. All three parts use identical 6-DIP (0.400", 10.16mm) through-hole packaging with the same pin spacing and configuration. No PCB layout modifications are required when substituting between these parts. However, input drive circuit design may need adjustment if switching from IL420-X016 to FOD4216TV due to the reduced LED trigger current specification.