SP10B DIP Switch SPST 10-Position Equivalent & Substitute Parts

Part Overview

The SP10B is a DIP switch manufactured by C&K, featuring a 10-position SPST (Single Pole Single Throw) configuration with a slide actuator. This component is rated for 10mA at 20VDC and is designed for through-hole mounting with a 0.100" pitch. The SP10B is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity.

Substiute Parts

SP10B

C&KIn Stock: 890SP10B Datasheet

Current PartRFQ

SPA10B

C&KIn Stock: 1204SPA10B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP10B is determined by the following critical parameters:

• Circuit Configuration: SPST topology must be maintained
• Position Count: 10-position requirement
• Electrical Ratings: 10mA current and 20VDC voltage ratings
• Actuator Type: Slide actuator with flush/recessed level
• Mounting Interface: Through-hole with 0.100" pitch spacing
• Contact System: Beryllium copper with gold finish

The SPA10B meets all substitution criteria within the allowed parameter set. Both parts share identical electrical specifications, contact materials, and mounting characteristics. Differences in physical dimensions (height and length) and operating temperature range do not preclude functional substitution in applications where the SP10B was originally specified.

Parameter Comparison

Engineering Selection Recommendations

The SPA10B is the direct substitute for the SP10B. Both components are manufactured by C&K and share identical electrical and mechanical specifications within the allowed parameter set. The SPA10B offers the advantage of active product status, ensuring continued availability and manufacturing support.

The SPA10B achieves ROHS3 compliance, whereas the SP10B is non-compliant. For applications subject to RoHS regulations, the SPA10B is the appropriate selection. The SPA10B's expanded lower operating temperature limit (-30°C versus -20°C) provides additional thermal margin in cold environments, while the SP10B's upper temperature rating (85°C versus 60°C) is not matched by the substitute.

Physical dimensions differ slightly: the SPA10B is 0.048" taller and 0.044" longer than the SP10B. These dimensional variations must be verified against PCB layout constraints and enclosure clearances before implementation.

Frequently Asked Questions (FAQ)

Q: Can the SPA10B directly replace the SP10B in existing designs?

A: Yes, the SPA10B is a direct functional substitute. Both parts share identical electrical ratings (10mA, 20VDC), circuit configuration (SPST), position count (10), actuator type (slide), and mounting interface (through-hole, 0.100" pitch). Physical dimensions differ slightly and must be verified against PCB layout requirements.

Q: What is the primary reason for substitution?

A: The SP10B is classified as obsolete. The SPA10B is an active product from the same manufacturer with equivalent electrical and mechanical specifications, ensuring design continuity and supply chain reliability.

Q: Are there compliance differences between these parts?

A: Yes. The SPA10B is ROHS3 compliant, while the SP10B is RoHS non-compliant. For applications requiring RoHS compliance, the SPA10B is the mandated selection.

Q: How do the operating temperature ranges compare?

A: The SP10B operates from -20°C to 85°C. The SPA10B operates from -30°C to 60°C. The SPA10B provides lower temperature capability; the SP10B provides higher temperature capability. Application requirements determine which range is appropriate.

Q: Are there packaging differences?

A: The SP10B is supplied in standard packaging. The SPA10B is supplied in tube packaging. Packaging format does not affect component functionality or electrical performance.

Q: What are the dimensional differences?

A: The SPA10B is 0.048" (1.21mm) taller and 0.044" (1.12mm) longer than the SP10B. Verify these dimensions against PCB layout and enclosure clearances before design implementation.