IS622 Optoisolator Triac Output Equivalent & Substitute Parts

Part Overview

The IS622 is an active optoisolator with triac output manufactured by Isocom Components 2004 LTD. This 6-pin DIP component provides galvanic isolation up to 5300Vrms with integrated zero-crossing detection, designed for AC switching applications requiring high voltage isolation. The part is currently in active production status with 924 units in stock. Substitute parts are identified when equivalent electrical performance, isolation rating, package compatibility, and regulatory compliance can be maintained across different manufacturers.

Substiute Parts

IS622

Isocom Components 2004 LTDIn Stock: 958IS622 Datasheet

Current PartRFQ

IL410

Vishay Semiconductor Opto DivisionIn Stock: 2457IL410 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The IL410 manufactured by Vishay Semiconductor Opto Division qualifies as a direct substitute for the IS622 based on the following critical parameters:

• Isolation Voltage: Both parts maintain 5300Vrms isolation rating
• Output Configuration: Both feature triac output with single channel
• Zero Crossing Detection: Both include integrated zero-crossing circuit
• Package Compatibility: Both use 6-DIP (0.300", 7.62mm) through-hole mounting
• Voltage Rating - Off State: Both rated at 600V
• Regulatory Compliance: Both ROHS3 compliant and REACH unaffected
• Product Status: Both active production status

Substitution is valid when the application requirements fall within the overlapping electrical specifications of both components.

Parameter Comparison

Engineering Selection Recommendations

Both IS622 and IL410 maintain active production status and full ROHS3 compliance with REACH unaffected designation. Selection between these components should be based on application-specific requirements:

The IS622 is suitable for applications where the specified trigger current of 10mA and hold current of 400µA align with circuit design parameters.

The IL410 is suitable for applications requiring lower trigger current (2mA), extended operating temperature range (-55°C minimum), or superior static dV/dt performance (10kV/µs). The IL410 also provides higher forward current capability (60mA maximum).

Both components are approved by recognized certification agencies (IS622: UL, VDE; IL410: CSA, UR) and carry identical ECCN and HTSUS classifications, confirming regulatory equivalence for export and procurement purposes.

Frequently Asked Questions (FAQ)

Q: Can IL410 directly replace IS622 in existing PCB designs?

A: Yes. Both components use identical 6-DIP (0.300", 7.62mm) through-hole packaging with the same pin configuration. No PCB layout modifications are required.

Q: What are the key electrical differences between IS622 and IL410?

A: The IL410 requires lower LED trigger current (2mA vs. 10mA), has superior static dV/dt rating (10kV/µs vs. 600V/µs), and extends the operating temperature range to -55°C. These represent performance enhancements rather than incompatibilities.

Q: Are both parts RoHS compliant?

A: Yes. Both IS622 and IL410 are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. If the circuit is designed for 10mA trigger current and -40°C minimum temperature, either part is acceptable. If lower trigger current, extended temperature range, or higher dV/dt immunity is beneficial, IL410 is the preferred choice.

Q: Are there any certifications or compliance differences?

A: Both parts are REACH unaffected and carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications. Certification agencies differ (IS622: UL, VDE; IL410: CSA, UR) but both represent recognized international standards.

Q: What is the significance of the zero-crossing circuit in both parts?

A: The integrated zero-crossing detection in both IS622 and IL410 ensures triac switching occurs at AC line voltage zero crossings, reducing electromagnetic interference and switching stress in AC load applications.