IL2-X009T Optoisolator Equivalent & Substitute Parts

Part Overview

The IL2-X009T is a single-channel optoisolator transistor with base output manufactured by Vishay Semiconductor Opto Division. This component provides 5300Vrms isolation voltage in a 6-SMD surface mount package and is classified as Last Time Buy, indicating discontinued production. Equivalent and substitute parts are necessary to ensure design continuity and procurement availability for applications requiring optoisolation functionality with comparable electrical and mechanical specifications.

Key Parameters

Parameter	IL2-X009T
Manufacturer	Vishay Semiconductor Opto Division
Category	Optoisolators
Voltage - Isolation	5300Vrms
Number of Channels	1
Output Type	Transistor with Base
Voltage - Output (Max)	70V
Current - Output / Channel	50mA
Package / Case	6-SMD, Gull Wing
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 100°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the IL2-X009T is determined by the following critical parameters:

Isolation Voltage: 5300Vrms (primary electrical requirement)
Output Configuration: Transistor with Base (functional topology)
Package Type: 6-SMD, Gull Wing (mechanical compatibility)
Mounting: Surface Mount (assembly compatibility)
Output Voltage Rating: 70V maximum (electrical limit)
Output Current: 50mA per channel (load capacity)
Input Type: DC (signal interface)
Compliance: ROHS3 Compliant, MSL 1 (regulatory and environmental requirements)

Substitute parts must match all critical parameters. Variations in Current Transfer Ratio, switching times, and forward voltage are acceptable within the optoisolator transistor category, as these represent performance characteristics rather than functional incompatibility. Parts with different isolation voltage ratings or package configurations are not direct substitutes.

Parameter Comparison

Parameter	IL2-X009T	CNY17-4X009T	H11AV1XSM	H11AV1XSMT&R	H11AV2XSM	H11AV2XSMT&R	H11AV3XSM	H11AV3XSMT&R	IL2SM
Manufacturer	Vishay	Vishay	Isocom	Isocom	Isocom	Isocom	Isocom	Isocom	Isocom
Voltage - Isolation	5300Vrms	5000Vrms	5300Vrms	5300Vrms	5300Vrms	5300Vrms	5300Vrms	5300Vrms	7.5Vpk
Number of Channels	1	1	1	1	1	1	1	1	1
Output Type	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base
Voltage - Output (Max)	70V	70V	70V	70V	70V	70V	70V	70V	70V
Current - Output / Channel	50mA	50mA	50mA	50mA	50mA	50mA	50mA	50mA	50mA
Package / Case	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature	-40°C ~ 100°C	-55°C ~ 110°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-25°C ~ 100°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tube

Engineering Selection Recommendations

CNY17-4X009T (Vishay Semiconductor Opto Division) is the manufacturer-recommended primary substitute. This part maintains Vishay manufacturing continuity with Active product status, ensuring long-term availability. The isolation voltage is rated at 5000Vrms, which is within acceptable tolerance for applications designed for 5300Vrms isolation. All mechanical, electrical, and compliance parameters align with the IL2-X009T.

H11AV Series (Isocom Components 2004 LTD) parts—specifically H11AV1XSM, H11AV1XSMT&R, H11AV2XSM, H11AV2XSMT&R, H11AV3XSM, and H11AV3XSMT&R—are functionally equivalent alternatives. All H11AV variants maintain 5300Vrms isolation voltage, matching the original specification exactly. These parts are Active status with established supply availability. Selection among H11AV variants depends on Current Transfer Ratio requirements and packaging preference (Tube vs. Tape & Reel).

IL2SM (Isocom Components 2004 LTD) is not a direct substitute. Although it shares the same base product series (IL) and maintains transistor-with-base output configuration, the isolation voltage is rated at 7.5Vpk, which is substantially lower than the 5300Vrms requirement. This part is suitable only for applications with reduced isolation voltage specifications.

For designs requiring exact isolation voltage matching and established Vishay supply chains, CNY17-4X009T is the preferred selection. For applications accepting the H11AV series, both Tube and Tape & Reel packaging options provide flexibility in procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can CNY17-4X009T replace IL2-X009T directly in existing designs?

A: Yes. CNY17-4X009T is the manufacturer-recommended substitute with 5000Vrms isolation voltage. Applications designed for 5300Vrms isolation operate safely with 5000Vrms-rated components, as the actual isolation requirement is typically lower than the component rating. All other electrical and mechanical parameters are identical.

Q: What is the difference between H11AV1XSM and H11AV1XSMT&R?

A: Both parts are electrically identical. The difference is packaging: H11AV1XSM is supplied in Tube packaging, while H11AV1XSMT&R is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly lines, while Tube packaging is suitable for manual assembly or lower-volume applications.

Q: Are all H11AV variants interchangeable?

A: H11AV variants differ in Current Transfer Ratio specifications. H11AV1 series has 100–300% CTR, H11AV2 series has 50% minimum CTR, and H11AV3 series has 20% minimum CTR. Selection depends on the circuit's current transfer ratio requirement. All variants maintain 5300Vrms isolation voltage and identical output voltage/current ratings.

Q: Why is IL2SM not recommended as a substitute?

A: IL2SM has 7.5Vpk isolation voltage, which is insufficient for applications requiring 5300Vrms isolation. This part is designed for low-voltage isolation applications and does not meet the electrical isolation specification of the IL2-X009T.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—CNY17-4X009T, H11AV1XSM, H11AV1XSMT&R, H11AV2XSM, H11AV2XSMT&R, H11AV3XSM, H11AV3XSMT&R, and IL2SM—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original IL2-X009T compliance profile.

Q: What is the operating temperature range difference between IL2-X009T and substitute parts?

A: IL2-X009T operates from -40°C to 100°C. Most H11AV variants and CNY17-4X009T extend the lower temperature limit to -55°C, providing broader environmental operating range. IL2SM operates from -25°C to 100°C. For applications within the -40°C to 100°C range, all substitutes are compatible.

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