SD02H0K DIP Switch Equivalent & Substitute Parts

Part Overview

The SD02H0K is a single-pole single-throw (SPST) DIP switch manufactured by C&K, designed for through-hole mounting applications requiring 100mA at 25VDC switching capability. This component features a slide actuator with flush, recessed positioning and gold-plated copper alloy contacts. The SD02H0K is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement planning.

Substiute Parts

SD02H0K

C&KIn Stock: 827SD02H0K Datasheet

Current PartRFQ

SD02H0B

C&KIn Stock: 5391SD02H0B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SD02H0K is based on strict equivalence across the following critical parameters:

• Circuit configuration (SPST)
• Number of positions (2)
• Current and voltage ratings (100mA, 25VDC)
• Actuator type and level (Slide, Flush/Recessed)
• Mounting method (Through Hole)
• Termination style (PC Pin)
• Pitch spacing (0.100" / 2.54mm)
• Physical height above board (0.178" / 4.52mm)
• Operating temperature range (-40°C to 85°C)
• Mechanical and electrical life cycles (2,000 cycles)

The SD02H0B qualifies as a direct substitute, maintaining all functional and mechanical parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The SD02H0B is the qualified substitute for the obsolete SD02H0K. Both components maintain identical electrical performance specifications, mechanical dimensions, and environmental operating parameters. The SD02H0B offers the advantage of active product status with ROHS3 compliance, whereas the SD02H0K is non-compliant and obsolete. For new designs or ongoing production requiring this switch type, the SD02H0B is the appropriate selection. Both components share the same base product number (SD02H0) and are manufactured by C&K within the SD series.

Frequently Asked Questions (FAQ)

Q: Can the SD02H0B be used as a direct replacement for the SD02H0K in existing designs?

A: Yes. The SD02H0B maintains all functional and mechanical parameters of the SD02H0K, including circuit configuration, current/voltage ratings, actuator type, mounting method, pitch spacing, and physical dimensions. No design modifications are required.

Q: What is the primary difference between these two parts?

A: The SD02H0K is obsolete with non-compliant RoHS status, while the SD02H0B is an active product with ROHS3 compliance. Contact material differs (copper alloy versus beryllium copper) and body material differs (PBT versus PPA), but electrical and mechanical performance remain equivalent.

Q: Are there packaging differences between SD02H0K and SD02H0B?

A: The SD02H0K is supplied with dash packaging, while the SD02H0B is supplied in tube packaging. This affects procurement and handling but does not impact component functionality or performance.

Q: Do both parts meet the same environmental and regulatory requirements?

A: Both components operate across -40°C to 85°C, have unlimited moisture sensitivity level (MSL 1), and maintain REACH unaffected status. The SD02H0B additionally meets ROHS3 compliance requirements.

Q: What are the critical parameters that define substitution eligibility for this DIP switch?

A: Substitution is determined by matching SPST circuit configuration, 2-position design, 100mA/25VDC ratings, slide actuator with flush/recessed level, through-hole mounting, PC pin termination, 0.100" pitch, 0.178" height above board, -40°C to 85°C operating range, and 2,000-cycle mechanical/electrical life specifications.