SP10 DIP Switch SPST 10-Position Equivalent & Substitute Parts

Part Overview

The SP10 is a 10-position DIP switch manufactured by C&K, featuring SPST (Single Pole Single Throw) circuit configuration with 10mA current rating and 20VDC voltage rating. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The SP10 utilizes a slide actuator with through-hole mounting and beryllium copper contacts finished in gold, suitable for applications requiring reliable switching in compact form factors.

Substiute Parts

SP10

C&KIn Stock: 1241SP10 Datasheet

Current PartRFQ

SPA10B

C&KIn Stock: 1204SPA10B Datasheet

DirectRFQ

1977104-5

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10671977104-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP10 is determined by strict equivalence across the following critical parameters: SPST circuit configuration, 10-position count, 10mA current rating, through-hole mounting with 0.100" pitch, slide actuator type, and gold-plated contact finish. Voltage rating, operating temperature range, body material, and product status are secondary considerations that define substitution categories.

The SP10 has two substitute classifications:

Direct Equivalent (SPA10B): Maintains identical electrical specifications (SPST, 10 positions, 10mA, 20VDC) and mechanical interface (0.100" pitch, through-hole, slide actuator, gold contacts). SPA10B is an active product with improved RoHS3 compliance and extended temperature range.

Similar Substitute (1977104-5): Shares core switching architecture (SPST, 10 positions, 10mA, through-hole, 0.100" pitch, slide actuator, gold contacts) but operates at reduced voltage (5VDC versus 20VDC). This part is suitable only for applications with 5VDC or lower voltage requirements.

Parameter Comparison

Engineering Selection Recommendations

SPA10B is the primary substitute for SP10 applications. Both parts maintain identical electrical ratings (20VDC, 10mA, SPST, 10 positions) and mechanical interface specifications (0.100" pitch, through-hole mounting, slide actuator). SPA10B is an active product with ROHS3 compliance, addressing the obsolescence of SP10. The SPA10B operates across a reduced temperature range (-30°C to 60°C versus -20°C to 85°C), which must be verified against application requirements. Physical dimensions differ slightly: SPA10B is 0.048" taller and 0.044" longer than SP10, requiring PCB layout verification for space-constrained designs.

1977104-5 is a secondary substitute applicable only to applications operating at 5VDC or lower. This TE Connectivity part shares the same circuit architecture, position count, current rating, and mechanical interface as SP10, but the reduced voltage rating (5VDC) restricts its use to low-voltage designs. The 1977104-5 maintains the full operating temperature range (-30°C to 85°C) and carries ROHS3 compliance. Physical dimensions are comparable to SPA10B.

For designs requiring the full 20VDC rating and operating temperature range of the original SP10, SPA10B is the only viable substitute. For 5VDC applications, 1977104-5 provides an alternative from an established manufacturer with active product status.

Frequently Asked Questions (FAQ)

Q: Can SPA10B directly replace SP10 in existing designs?

A: SPA10B maintains electrical equivalence (SPST, 10 positions, 10mA, 20VDC) and standard mechanical interface (0.100" pitch, through-hole, slide actuator). Physical dimensions differ: SPA10B is taller (0.244" versus 0.196") and longer (1.142" versus 1.098"). PCB layout and enclosure clearance must be verified before substitution.

Q: What is the voltage limitation of 1977104-5?

A: 1977104-5 is rated for 5VDC maximum. It cannot be used in circuits designed for 20VDC operation. This part is suitable only for low-voltage applications operating at 5VDC or below.

Q: Are there temperature range differences between SP10 and SPA10B?

A: SP10 operates from -20°C to 85°C. SPA10B operates from -30°C to 60°C. Applications requiring operation above 60°C cannot use SPA10B. Applications requiring operation below -20°C benefit from SPA10B's extended lower temperature limit.

Q: What is the packaging difference between SP10 and SPA10B?

A: SP10 packaging is not specified in available data. SPA10B is supplied in tube packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Are both substitute parts RoHS compliant?

A: SP10 is RoHS non-compliant. SPA10B and 1977104-5 are both ROHS3 compliant. If RoHS compliance is required, both substitutes meet this requirement.

Q: What contact material differences exist between these parts?

A: SP10 and SPA10B use beryllium copper contacts. 1977104-5 uses copper alloy contacts. Both are gold-plated. Contact material selection should be verified against application requirements for corrosion resistance and electrical performance.