SD07H0K DIP Switch Equivalent & Substitute Parts

Part Overview

The SD07H0K is a 7-position DIP switch manufactured by C&K, featuring SPST (Single Pole Single Throw) circuit configuration with 100mA current rating at 25VDC. This component is designed for through-hole mounting applications requiring slide actuator operation. The SD07H0K is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

SD07H0K

C&KIn Stock: 784SD07H0K Datasheet

Current PartRFQ

SD07H0B

C&KIn Stock: 1264SD07H0B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD07H0K with the SD07H0B is permissible based on the following critical parameters that remain constant across both parts:

• Circuit configuration (SPST)
• Number of positions (7)
• Current rating (100mA)
• Voltage rating (25VDC)
• Actuator type (Slide Standard)
• Mounting type (Through Hole)
• Pitch spacing (0.100" / 2.54mm)
• Height above board (0.178" / 4.52mm)
• Termination style (PC Pin)
• Operating temperature range (-40°C to 85°C)
• Mechanical and electrical life (2,000 cycles each)

These parameters define the functional and physical compatibility envelope for DIP switch substitution within the SD series.

Parameter Comparison

Engineering Selection Recommendations

The SD07H0B serves as the direct active substitute for the obsolete SD07H0K. Both components maintain identical electrical and mechanical specifications across all critical parameters, ensuring functional interchangeability in circuit applications.

The primary distinction between these parts is regulatory compliance status. The SD07H0B achieves ROHS3 compliance, whereas the SD07H0K is RoHS non-compliant. For new designs or systems requiring regulatory adherence to RoHS directives, the SD07H0B is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, either part satisfies the electrical and mechanical requirements.

Contact material differs between the two parts: the SD07H0K uses Copper Alloy contacts while the SD07H0B uses Beryllium Copper contacts. Both materials are gold-finished and maintain equivalent performance within the specified electrical parameters. Body material also differs, with the SD07H0K constructed from Polyphthalamide (PPA) and the SD07H0B from Polybutylene Terephthalate (PBT). These material variations do not affect functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SD07H0B directly replace the SD07H0K in existing circuit boards?

A: Yes. The SD07H0B is a direct functional substitute. Both parts share identical pitch spacing (0.100" / 2.54mm), height above board (0.178" / 4.52mm), and termination style (PC Pin), ensuring mechanical compatibility with existing through-hole PCB layouts. Electrical specifications including current rating (100mA), voltage rating (25VDC), and circuit configuration (SPST) are identical.

Q: What is the significance of the contact material difference between these parts?

A: The SD07H0K uses Copper Alloy contacts while the SD07H0B uses Beryllium Copper contacts. Both materials are gold-finished and perform equivalently within the specified electrical parameters of 100mA at 25VDC. The contact material change does not affect substitution compatibility.

Q: Why is the SD07H0K classified as obsolete?

A: The SD07H0K is listed as obsolete by the manufacturer. The SD07H0B, classified as active, is the current production equivalent. For new designs and ongoing component procurement, the SD07H0B should be specified.

Q: Does the RoHS compliance difference affect substitution?

A: The SD07H0B is ROHS3 compliant while the SD07H0K is RoHS non-compliant. For applications or markets requiring RoHS compliance, the SD07H0B must be selected. For legacy systems without RoHS requirements, both parts are functionally equivalent.

Q: Are the packaging differences significant?

A: The SD07H0K is supplied with dash packaging while the SD07H0B is supplied in tube packaging. This affects handling and storage but does not impact electrical or mechanical performance. Component selection should be based on procurement and assembly requirements.

Q: What is the base product number relationship?

A: The SD07H0B references base product number SD07H0, indicating it is part of the current SD series product line. The SD07H0K, though obsolete, shares the same functional design within this series.