SD10H1B DIP Switch SPST 10 Position Equivalent & Substitute Parts

Part Overview

The SD10H1B is an active-status DIP switch manufactured by C&K, configured as a single-pole single-throw (SPST) switch with 10 positions. This through-hole component is designed for applications requiring manual circuit configuration with a slide actuator mechanism. The part operates at 100mA and 25VDC with a standard raised actuator and gold-plated beryllium copper contacts. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or application-specific performance needs within the allowed electrical and mechanical parameter ranges.

Substiute Parts

SD10H1B

C&KIn Stock: 774SD10H1B Datasheet

Current PartRFQ

78B10ST

Grayhill Inc.In Stock: 629778B10ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SD10H1B is determined by the following critical parameters:

• Circuit Configuration: Must be SPST (single-pole single-throw)
• Number of Positions: Must be 10 positions
• Actuator Type: Must be slide (standard) with raised actuator level
• Mounting Type: Must be through-hole with PC pin termination
• Pitch: Must be 0.100" (2.54mm) full pitch
• Packaging: Tube packaging
• Washable: Yes (tape seal feature)
• Mechanical and Electrical Life: 2,000 cycles minimum
• Operating Temperature: -40°C ~ 85°C range
• Compliance: ROHS3 compliant, REACH unaffected, EAR99 classification

The substitute part 78B10ST meets all these core substitution criteria. While the 78B10ST operates at higher current (150mA vs. 100mA) and voltage (30VDC vs. 25VDC) ratings, these represent increased capability margins suitable for applications designed for the SD10H1B. The physical dimensions and mounting characteristics remain compatible with standard PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Both the SD10H1B and 78B10ST are active-status components with full regulatory compliance. Selection between these parts should be based on the following factors:

SD10H1B (C&K): Select this part when the application requires the exact current and voltage specifications (100mA, 25VDC) and when the lower profile height (0.178") is a critical PCB layout constraint.

78B10ST (Grayhill Inc.): Select this part when higher current capacity (150mA) or voltage margin (30VDC) is beneficial for the application, or when inventory availability favors this manufacturer. The increased height above board (0.315") must be verified against PCB clearance requirements.

Both parts maintain identical compliance certifications (ROHS3, REACH unaffected, EAR99) and identical mechanical life specifications (2,000 cycles). The choice between beryllium copper and copper alloy contact materials does not affect substitution eligibility, as both provide gold-plated surfaces suitable for the specified operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the 78B10ST replace the SD10H1B in all applications?

A: The 78B10ST is electrically and mechanically compatible with the SD10H1B for applications designed to the SD10H1B specifications. The higher current (150mA) and voltage (30VDC) ratings of the 78B10ST provide additional capability margin. However, the increased height above board (0.315" vs. 0.178") must be verified against PCB layout constraints and enclosure clearances.

Q: What are the key differences between these two parts?

A: The primary differences are current rating (100mA vs. 150mA), voltage rating (25VDC vs. 30VDC), height above board (0.178" vs. 0.315"), contact material (beryllium copper vs. copper alloy), and body material (polyphthalamide vs. thermoplastic). All other electrical, mechanical, and compliance parameters are identical.

Q: Are both parts available in the same packaging?

A: Yes, both the SD10H1B and 78B10ST are supplied in tube packaging with tape seal features, maintaining identical pitch (0.100" / 2.54mm) and termination style (PC pin).

Q: Do these parts have the same operating temperature range?

A: Yes, both parts operate across the identical temperature range of -40°C to 85°C with moisture sensitivity level 1 (unlimited).

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both maintain MSL 1 (unlimited) moisture sensitivity rating.