Omron A22E-SK-02 Equivalent & Substitute Parts

Part Overview

The Omron A22E-SK-02 is a panel-mount push-button switch with DPST-NC (Double Pole Single Throw - Normally Closed) circuit configuration, rated for 10A at 110V AC and 24V DC. This component features key-lock reset operation and IP65 ingress protection, making it suitable for industrial control applications requiring secure manual actuation.

The A22E-SK-02 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for maintenance, repair, and new installations where this specific model is no longer procurable from standard distribution channels.

Substiute Parts

A22E-SK-02

Omron Automation and SafetyIn Stock: 1093A22E-SK-02 Datasheet

Current PartRFQ

A22E-S-02

Omron Automation and SafetyIn Stock: 1130A22E-S-02 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A22E-SK-02 is determined by strict equivalence across the following critical parameters:

• Series Compatibility: Both parts must belong to the Omron A22E series
• Circuit Configuration: DPST-NC circuit must be maintained
• Electrical Ratings: Current rating of 10A (AC/DC), voltage ratings of 110V AC and 24V DC must be identical
• Mechanical Interface: Panel cutout diameter of 22.30mm (circular) and screw terminal termination must match
• Environmental Protection: IP65 ingress protection rating must be maintained
• Operating Temperature: -20°C ~ 70°C range must be supported
• Mounting Configuration: Panel mount, front-facing orientation required

The A22E-SK-02 is directly substitutable with the A22E-S-02. Both parts share identical electrical and mechanical specifications within the A22E product family. The primary difference is the reset operation mechanism: the A22E-SK-02 uses key-lock reset, while the A22E-S-02 uses twist reset. This functional difference does not affect electrical compatibility or panel integration, as both employ the same 22.30mm circular cutout and screw terminal interface.

Parameter Comparison

Engineering Selection Recommendations

The A22E-S-02 is the direct substitute for the A22E-SK-02 based on electrical and mechanical parameter equivalence. The A22E-S-02 maintains active product status with Omron, ensuring ongoing availability and supply chain continuity compared to the obsolete A22E-SK-02.

From a compliance perspective, the A22E-S-02 carries RoHS3 compliance and REACH Unaffected status, providing regulatory alignment for applications subject to these requirements. The A22E-SK-02 lists REACH status as vendor undefined, which may present documentation challenges in regulated environments.

The functional difference in reset operation (key-lock versus twist) should be evaluated against application requirements. In applications where the key-lock mechanism provides security benefits, this distinction may influence the selection decision. However, from an electrical and mechanical integration standpoint, both parts are fully compatible with identical panel cutout dimensions and terminal configurations.

Frequently Asked Questions (FAQ)

Q: Can the A22E-S-02 be used as a direct replacement for the A22E-SK-02 in existing installations?

A: Yes. Both parts share identical electrical ratings (10A at 110V AC / 24V DC), circuit configuration (DPST-NC), panel cutout dimensions (22.30mm circular), and termination style (screw terminal). The mechanical and electrical interfaces are fully compatible. The reset operation difference (key-lock versus twist) does not affect electrical functionality or panel mounting.

Q: What is the significance of the product status difference between these parts?

A: The A22E-SK-02 is classified as obsolete, meaning Omron has discontinued production and support. The A22E-S-02 is active, indicating current manufacturing and availability through distribution channels. For new designs or long-term supply requirements, the active A22E-S-02 is the preferred selection.

Q: Are there packaging differences between the A22E-SK-02 and A22E-S-02?

A: Yes. The A22E-SK-02 is supplied with 5 pieces per package (1 switch, 2 keys, 1 locking ring, 1 nut). The A22E-S-02 is supplied with 3 pieces per package (1 switch, 1 locking ring, 1 nut). The A22E-S-02 does not include keys, as the twist reset mechanism does not require key operation. Packaging quantity and contents should be considered when ordering replacement inventory.

Q: Do both parts meet the same environmental protection standards?

A: Yes. Both the A22E-SK-02 and A22E-S-02 are rated IP65, providing dust-tight protection and resistance to oil and water. Both operate across the identical temperature range of -20°C to 70°C and carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: What compliance certifications apply to each part?

A: The A22E-S-02 is explicitly RoHS3 compliant and REACH unaffected. The A22E-SK-02 lists REACH status as vendor undefined. For applications requiring documented regulatory compliance, the A22E-S-02 provides clearer certification status. Both parts carry EAR99 ECCN classification and identical HTSUS codes (8536.50.9035).