IL1-X016 Optoisolator Equivalent & Substitute Parts

Part Overview

The IL1-X016 is a high-voltage optoisolator transistor with base output manufactured by Vishay Semiconductor Opto Division. This component provides galvanic isolation up to 5300Vrms with a single-channel transistor output configuration in a 6-DIP package. The IL1-X016 is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent performance is required.

Substiute Parts

IL1-X016

Vishay Semiconductor Opto DivisionIn Stock: 1094IL1-X016 Datasheet

Current PartRFQ

4N25-X016

Vishay Semiconductor Opto DivisionIn Stock: 11354N25-X016 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IL1-X016 is determined by the following critical parameters:

• Isolation Voltage: Minimum 5000Vrms required to maintain system safety margins
• Package Type: 6-DIP form factor for mechanical compatibility
• Output Configuration: Transistor with base output for circuit interface compatibility
• Number of Channels: Single-channel operation
• Current Handling: Minimum 50mA output current capability
• Mounting Type: Through-hole configuration for PCB integration

The 4N25-X016 meets all substitution criteria as an active product from the same manufacturer with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 4N25-X016 is the direct substitute for the obsolete IL1-X016. Both components are manufactured by Vishay Semiconductor Opto Division and maintain ROHS3 compliance. The 4N25-X016 is currently in active production status, ensuring long-term availability and supply chain continuity.

The 4N25-X016 provides equivalent or superior performance across all critical parameters: isolation voltage remains above 5000Vrms, output current capacity matches at 50mA, and the 6-DIP package ensures direct mechanical compatibility. The 4N25-X016 offers an extended operating temperature range (-55°C to 100°C versus -40°C to 100°C) and higher maximum output voltage (70V versus 50V), providing additional design margin in most applications.

Frequently Asked Questions (FAQ)

Q: Can the 4N25-X016 be used as a direct replacement for the IL1-X016?

A: Yes. Both components share identical 6-DIP package dimensions, single-channel transistor-with-base output configuration, and equivalent isolation voltage specifications above 5000Vrms. Pin-to-pin compatibility and electrical performance are maintained.

Q: What is the primary reason to substitute the IL1-X016?

A: The IL1-X016 is classified as obsolete. The 4N25-X016 is an active product from the same manufacturer, ensuring continued availability, technical support, and supply chain reliability.

Q: Are there any electrical differences between these parts?

A: The 4N25-X016 has a slightly higher typical forward voltage (1.36V versus 1.25V) and higher maximum saturation voltage (500mV versus 250mV). These differences are within normal component tolerances and do not affect substitution suitability in standard applications. The 4N25-X016 offers higher maximum output voltage (70V versus 50V) and extended temperature range (-55°C to 100°C).

Q: Is the 6-DIP package the same for both parts?

A: Yes. Both the IL1-X016 and 4N25-X016 use the 6-DIP (0.400", 10.16mm) package with identical pin configuration and through-hole mounting requirements.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the IL1-X016 and 4N25-X016 are ROHS3 compliant, meeting environmental and regulatory standards for electronic components.