SP02A DIP Switch SPST Equivalent & Substitute Parts

Part Overview

The SP02A is a slide-actuated DIP switch manufactured by C&K, designed for through-hole, right-angle mounting applications requiring single-pole, single-throw (SPST) switching at 10mA and 20VDC. This component features a 2-position configuration with beryllium copper contacts finished in gold, suitable for applications demanding reliable low-current switching with washable PCB compatibility.

The SP02A is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance or redesign initiatives.

Substiute Parts

SP02A

C&KIn Stock: 1184SP02A Datasheet

Current PartRFQ

SPA02AB

C&KIn Stock: 3199SPA02AB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP02A is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: Must be SPST
• Number of Positions: Must be 2
• Current Rating: Must be 10mA
• Voltage Rating: Must be 20VDC
• Actuator Type: Must be Slide (Standard)
• Mounting Type: Must be Through Hole, Right Angle
• Termination Style: Must be PC Pin
• Pitch: Must be 0.100" (2.54mm)
• Contact Material: Must be Beryllium Copper
• Contact Finish: Must be Gold

The SPA02AB meets all mandatory substitution criteria. Variations in body material, operating temperature range, physical dimensions, and product status do not affect functional interchangeability within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

The SPA02AB is the direct substitute for the obsolete SP02A. Both components are manufactured by C&K and maintain identical electrical and mechanical specifications across all critical switching parameters.

The SPA02AB offers the advantage of active product status, ensuring continued availability and supply chain support. Additionally, the SPA02AB achieves ROHS3 compliance, whereas the SP02A is non-compliant. For new designs or system upgrades, the SPA02AB is the appropriate selection. For legacy system maintenance requiring exact form-fit-function replacement, the SPA02AB provides full compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SPA02AB be used as a direct replacement for the SP02A in existing designs?

A: Yes. The SPA02AB is functionally and mechanically equivalent to the SP02A. Both components share identical circuit configuration, current and voltage ratings, actuator type, mounting configuration, pitch, and contact specifications. The SPA02AB is a direct substitute.

Q: What are the differences between the SP02A and SPA02AB?

A: The primary differences are product status, RoHS compliance, body material, operating temperature range, and physical length. The SP02A uses polybutylene terephthalate (PBT) body material with an operating range of -20°C to 85°C and measures 0.298" (7.58mm) in length. The SPA02AB uses polyphenylene sulfide (PPS) body material with an operating range of -30°C to 60°C and measures 0.342" (8.68mm) in length. The SPA02AB is ROHS3 compliant, while the SP02A is not.

Q: Does the difference in body material affect electrical performance?

A: No. Both body materials are suitable for the specified electrical and mechanical requirements. The material difference does not impact switching performance, contact reliability, or functional interchangeability.

Q: Are there packaging differences between these parts?

A: Yes. The SP02A is supplied in standard packaging, while the SPA02AB is supplied in tube packaging. This difference affects handling and storage but does not impact component functionality or performance.

Q: Which part should be selected for new designs?

A: The SPA02AB should be selected for new designs. It is an active product with ROHS3 compliance and assured long-term availability.