Equivalent & Substitute Parts for C&K 7103SPYA3ME Toggle Switch

Part Overview

The C&K 7103SPYA3ME is a toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This component features panel mount, right-angle installation with anti-rotation actuator and PC pin termination. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement planning.

Substiute Parts

7103SPYA3ME

C&KIn Stock: 10967103SPYA3ME Datasheet

Current PartRFQ

7103SPYA3SE

C&KIn Stock: 7447103SPYA3SE Datasheet

DirectRFQ

A121S1YAQ

ElectroswitchIn Stock: 902A121S1YAQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7103SPYA3ME are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Circuit configuration (SPDT)
• Mounting type (Panel Mount, Right Angle)
• Termination style (PC Pin)
• Panel cutout dimensions (Circular - 6.35mm Dia)
• Bushing thread specification (1/4-40)
• Current and voltage ratings (minimum 5A at 120V AC, 28V DC)

Substitute Categories:

Direct Manufacturer Equivalent: Parts from C&K's 7000 series that maintain identical mechanical and electrical specifications with updated product status.

Cross-Manufacturer Alternative: Parts from other manufacturers meeting or exceeding the electrical and mechanical requirements, with compatible panel mount configuration and termination style.

Parameter Comparison

Engineering Selection Recommendations

7103SPYA3SE (C&K Direct Equivalent): This part maintains identical electrical and mechanical specifications to the 7103SPYA3ME while offering active product status. Both parts are RoHS compliant and share the same 40,000-cycle electrical life rating. The 7103SPYA3SE is the primary recommendation for direct replacement in existing designs, as it requires no circuit or mechanical modifications.

A121S1YAQ (Electroswitch Cross-Manufacturer Alternative): This part exceeds the minimum electrical requirements with 6A current rating and 125V AC rating. It provides extended operating temperature range (-30°C to 90°C versus -30°C to 85°C) and higher electrical life (60,000 cycles). Panel cutout dimensions are not specified for this part. Both the 7103SPYA3SE and A121S1YAQ are active products with current RoHS compliance, making either suitable for new procurement.

Frequently Asked Questions (FAQ)

Q: Can the 7103SPYA3SE directly replace the obsolete 7103SPYA3ME?

A: Yes. The 7103SPYA3SE maintains identical electrical ratings (5A at 120V AC, 28V DC), circuit configuration (SPDT), mounting type (Panel Mount, Right Angle), termination style (PC Pin), and panel cutout dimensions (Circular - 6.35mm Dia). No circuit or mechanical modifications are required.

Q: What are the key differences between the C&K 7103SPYA3SE and the Electroswitch A121S1YAQ?

A: The A121S1YAQ provides higher current capacity (6A versus 5A), higher AC voltage rating (125V versus 120V), extended operating temperature range (90°C maximum versus 85°C), and longer electrical life (60,000 cycles versus 40,000 cycles). Panel cutout dimensions are not specified for the A121S1YAQ. Both parts share identical DC voltage rating (28V), SPDT circuit configuration, and 1/4-40 bushing thread specification.

Q: Are both substitute parts RoHS compliant?

A: Yes. The 7103SPYA3SE is RoHS Compliant, and the A121S1YAQ is RoHS Compliant. Both meet current environmental compliance requirements.

Q: What determines whether a part can substitute for the 7103SPYA3ME?

A: Substitution is determined by matching circuit configuration (SPDT), current and voltage ratings (minimum 5A at 120V AC, 28V DC), mounting type (Panel Mount, Right Angle), termination style (PC Pin), panel cutout dimensions (Circular - 6.35mm Dia), and bushing thread (1/4-40). Parts meeting or exceeding these parameters are functionally equivalent.

Q: Is the A121S1YAQ suitable for applications requiring the exact panel cutout dimensions of the 7103SPYA3ME?

A: The panel cutout dimensions for the A121S1YAQ are not specified in available documentation. For applications where panel cutout dimensions are critical, the 7103SPYA3SE is the recommended choice, as it maintains the identical Circular - 6.35mm Dia specification.