SD08H0K DIP Switch SPST 8-Position Equivalent & Substitute Parts

Part Overview

The SD08H0K is a DIP switch manufactured by C&K, featuring SPST (Single Pole Single Throw) configuration with 8 positions, rated for 100mA at 25VDC. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The SD08H0K utilizes a slide actuator with through-hole mounting and gold-plated copper alloy contacts suitable for applications requiring reliable switching in industrial and consumer electronics.

Substiute Parts

SD08H0K

C&KIn Stock: 755SD08H0K Datasheet

Current PartRFQ

SD08H0B

C&KIn Stock: 1606SD08H0B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SD08H0B qualifies as a direct substitute for the SD08H0K based on matching electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

Matching Parameters (Required for Substitution):

• Circuit configuration: SPST
• Number of positions: 8
• Current rating: 100mA
• Voltage rating: 25VDC
• Actuator type: Slide (Standard)
• Mounting type: Through Hole
• Pitch: 0.100" (2.54mm)
• Height above board: 0.178" (4.52mm)
• Contact finish: Gold
• Operating temperature range: -40°C to 85°C
• Mechanical life: 2,000 Cycles
• Electrical life: 2,000 Cycles

The SD08H0B maintains functional equivalence across all critical electrical and mechanical parameters, enabling direct substitution in circuit designs originally specified for the SD08H0K.

Parameter Comparison

Engineering Selection Recommendations

The SD08H0B is the recommended substitute for the obsolete SD08H0K. The primary advantage of selecting the SD08H0B is its active product status, ensuring long-term availability and supply chain continuity. Additionally, the SD08H0B achieves ROHS3 compliance, whereas the SD08H0K is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance requirements, the SD08H0B provides regulatory alignment. Both parts maintain identical electrical performance and mechanical compatibility, supporting direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the SD08H0B replace the SD08H0K in existing designs?

A: Yes. The SD08H0B provides functional equivalence across all critical electrical and mechanical parameters, including circuit configuration, current and voltage ratings, actuator type, mounting configuration, and pitch. Direct substitution is supported without design modification.

Q: What is the primary difference between these parts?

A: The SD08H0K is obsolete, while the SD08H0B is active. The SD08H0B also achieves ROHS3 compliance. Contact material differs (copper alloy versus beryllium copper) and body material differs (PBT versus PPA), but these variations do not affect electrical or mechanical compatibility.

Q: Are there packaging differences between the SD08H0K and SD08H0B?

A: The SD08H0K is supplied with standard packaging, while the SD08H0B is supplied in tube packaging. Both maintain identical component dimensions and electrical specifications.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching SPST circuit configuration, 8-position count, 100mA current rating, 25VDC voltage rating, slide actuator type, through-hole mounting, 0.100" pitch, 0.178" height above board, gold contact finish, -40°C to 85°C operating temperature range, and 2,000-cycle mechanical and electrical life ratings.

Q: Is the SD08H0B suitable for applications requiring RoHS compliance?

A: Yes. The SD08H0B is ROHS3 compliant, making it suitable for applications and markets with RoHS regulatory requirements. The SD08H0K is RoHS non-compliant.