C&K SP02B DIP Switch SPST Equivalent & Substitute Parts

Part Overview

The C&K SP02B is a single-pole single-throw (SPST) DIP switch with a 2-position slide actuator, rated for 10mA at 20VDC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The SP02B serves applications requiring low-current switching in compact through-hole configurations with standard 0.100" pitch spacing.

Substiute Parts

SP02B

C&KIn Stock: 1106SP02B Datasheet

Current PartRFQ

SPA02B

C&KIn Stock: 1573SPA02B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP02B 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 minimum
• Voltage Rating: Must be 20VDC minimum
• Actuator Type: Must be Slide (Standard)
• Mounting Type: Must be Through Hole
• Pitch: Must be 0.100" (2.54mm)
• Contact Material: Must be Beryllium Copper
• Contact Finish: Must be Gold
• Termination Style: Must be PC Pin

The C&K SPA02B meets all substitution criteria. Both parts share identical electrical specifications, contact materials, and mechanical interfaces. Dimensional variations (height and length) remain within acceptable tolerances for standard through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

The C&K SPA02B is the direct functional equivalent for the obsolete SP02B. Both components share identical electrical ratings, contact materials, and mechanical interfaces required for SPST 2-position switching applications at 10mA and 20VDC.

The SPA02B offers the advantage of active product status, ensuring continued availability and supply chain stability. The SPA02B also provides ROHS3 compliance, addressing regulatory requirements for new designs and manufacturing environments subject to RoHS directives.

Dimensional differences between the two parts (0.048" height increase and 0.044" length increase) are negligible for standard through-hole PCB layouts and do not affect electrical performance or mechanical fit in typical applications.

Operating temperature ranges differ: the SP02B operates from -20°C to 85°C, while the SPA02B operates from -30°C to 60°C. Design teams must confirm that the SPA02B temperature range accommodates the specific application environment before implementation.

Frequently Asked Questions (FAQ)

Q: Can the SPA02B directly replace the SP02B in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent for SPST 2-position switching at 10mA and 20VDC. The SPA02B accommodates standard 0.100" pitch through-hole PCB layouts. Verify that the SPA02B operating temperature range (-30°C to 60°C) meets your application requirements, as it differs from the SP02B range (-20°C to 85°C).

Q: What are the key differences between SP02B and SPA02B?

A: The primary differences are product status, RoHS compliance, and physical dimensions. The SPA02B is an active product with ROHS3 compliance, while the SP02B is obsolete and RoHS non-compliant. The SPA02B is 0.048" taller and 0.044" longer. Electrical specifications and contact materials are identical.

Q: Are there packaging differences between these parts?

A: Yes. The SP02B is supplied in standard packaging, while the SPA02B is supplied in tube packaging. Both packaging formats are suitable for through-hole assembly processes.

Q: Does the height difference affect PCB layout?

A: The SPA02B height above board is 0.244" compared to the SP02B at 0.196". This 0.048" difference is within standard PCB clearance tolerances for most applications. Verify clearance in your specific PCB design if space constraints exist.

Q: Is the SPA02B suitable for new product designs?

A: Yes. The SPA02B is an active product with ROHS3 compliance, making it appropriate for new designs. Confirm that the operating temperature range (-30°C to 60°C) aligns with your application environment.