C&K 7103SDAV2LE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7103SDAV2LE is a toggle switch with SPDT (Single Pole Double Throw) configuration rated for 5A at 120V AC and 28V DC. This component features panel mount installation with right angle vertical orientation and non-illuminated operation. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system maintenance and new design implementations where similar electrical and mechanical characteristics are required.

Substiute Parts

7103SDAV2LE

C&KIn Stock: 10057103SDAV2LE Datasheet

Current PartRFQ

7103SDAV2RE

C&KIn Stock: 8097103SDAV2RE Datasheet

DirectRFQ

A121S1YAV2B

ElectroswitchIn Stock: 893A121S1YAV2B Datasheet

SimilarRFQ

A121S1YAV2Q

ElectroswitchIn Stock: 940A121S1YAV2Q Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7103SDAV2LE is determined by alignment across the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPDT)
• Mounting type (Panel Mount, Right Angle, Vertical)
• Termination style (PC Pin)
• Bushing thread specification (1/4-40)
• Actuator type (Standard Round)

Electrical Compatibility Criteria:

• Current rating must meet or exceed 5A (AC/DC)
• Voltage ratings must support minimum 120V AC and 28V DC operation
• Operating temperature range must encompass -30°C to 85°C

Mechanical Compatibility Criteria:

• Panel cutout dimensions must accommodate 6.35mm circular opening
• Actuator length and material composition must be compatible with existing panel interfaces

Two substitute categories are identified:

Direct Manufacturer Substitute: C&K 7103SDAV2RE maintains identical mechanical and electrical specifications with active product status and improved compliance documentation.

Similar Manufacturer Substitutes: Electroswitch A121S1YAV2B and A121S1YAV2Q provide SPDT configuration with panel mount installation but present variations in electrical ratings and switch function characteristics that require application-specific evaluation.

Parameter Comparison

Engineering Selection Recommendations

C&K 7103SDAV2RE (Direct Substitute): This component is the primary substitute for the obsolete 7103SDAV2LE. It maintains identical electrical ratings (5A at 120V AC / 28V DC), mechanical configuration, and switch function (On-Off-On). The 7103SDAV2RE is active in production status and carries RoHS compliance certification. This substitute provides direct compatibility without application modification.

Electroswitch A121S1YAV2B: This component presents reduced electrical capacity (0.5VA at 28V AC/DC) relative to the main part specification. While it maintains SPDT configuration and panel mount installation, the significantly lower current rating restricts its application to low-power circuits only. This substitute is suitable only for applications where the original 5A rating is not required.

Electroswitch A121S1YAV2Q: This component exceeds the main part current rating (6A at 125V AC / 28V DC) and provides extended electrical life (60,000 cycles versus 40,000 cycles). The switch function differs (On-On versus On-Off-On), which may affect circuit behavior in applications requiring the center-off position. This substitute is suitable for applications where higher current capacity and extended cycle life are beneficial, provided the On-On function is compatible with system requirements.

All substitute options maintain RoHS compliance and support the required operating temperature range of -30°C to 85°C or better.

Frequently Asked Questions (FAQ)

Q: Can the 7103SDAV2RE directly replace the obsolete 7103SDAV2LE without any modifications?

A: Yes. The 7103SDAV2RE is a direct substitute with identical electrical ratings, mechanical configuration, switch function, and termination specifications. No circuit or panel modifications are required.

Q: What is the primary difference between the Electroswitch A121S1YAV2B and the main part?

A: The A121S1YAV2B has a significantly lower current rating (0.5VA versus 5A). It is suitable only for low-power applications. The switch function is also On-On rather than On-Off-On, eliminating the center-off position.

Q: Can the Electroswitch A121S1YAV2Q be used in place of the 7103SDAV2LE?

A: The A121S1YAV2Q can be used if the application does not require the center-off position provided by the On-Off-On function. The higher current rating (6A) and extended electrical life (60,000 cycles) make it suitable for demanding applications. Verify that the On-On switch function is compatible with your circuit design.

Q: Are there mechanical compatibility concerns with the Electroswitch substitutes?

A: The Electroswitch A121S1YAV2B and A121S1YAV2Q have a shorter actuator length (10.41mm versus 12.45mm). Verify that panel thickness and actuator clearance accommodate this difference. Panel cutout dimensions and bushing thread specifications (1/4-40) remain compatible.

Q: What compliance certifications apply to all substitute options?

A: All substitute parts carry RoHS compliance certification. The main part is ROHS3 compliant. The 7103SDAV2RE is RoHS compliant with REACH Affected status. The Electroswitch parts are RoHS compliant with Vendor Undefined REACH status. All parts carry EAR99 ECCN classification.

Q: How do the electrical life ratings compare?

A: The main part and 7103SDAV2RE are rated for 40,000 cycles. The Electroswitch substitutes are rated for 60,000 cycles, providing extended operational life in high-cycle applications.