SDA07H0K Equivalent & Substitute Parts

Part Overview

The SDA07H0K is a DIP slide switch manufactured by C&K, featuring SPST (Single Pole Single Throw) configuration with 7 positions, rated for 25mA at 24VDC. This component is classified as obsolete product status. Due to its obsolete designation, locating direct inventory may present sourcing challenges. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this switch topology and electrical rating.

Substiute Parts

SDA07H0K

C&KIn Stock: 688SDA07H0K Datasheet

Current PartRFQ

SDA07H0B

C&KIn Stock: 946SDA07H0B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SDA07H0B qualifies as a direct substitute for the SDA07H0K based on the following critical parameters:

• Circuit Configuration: Both parts maintain SPST topology
• Number of Positions: Both feature 7-position configuration
• Current Rating: Both rated at 25mA
• Voltage Rating: Both rated at 24VDC
• Actuator Type: Both use slide (standard) actuator
• Mounting Type: Both are through-hole mounted
• Pitch: Both maintain 0.100" (2.54mm) pitch
• Contact Material: Both use beryllium copper contacts
• Contact Finish: Both feature gold plating
• Termination Style: Both use PC pin termination

The SDA07H0B represents an active product within the same SDA series, providing functional and electrical equivalence to the obsolete SDA07H0K.

Parameter Comparison

Engineering Selection Recommendations

The SDA07H0B is the appropriate substitute for the obsolete SDA07H0K. Both components share identical electrical specifications (SPST, 7-position, 25mA, 24VDC) and mechanical compatibility (through-hole mounting, 0.100" pitch, PC pin termination).

The SDA07H0B offers the following advantages:

• Active Product Status: Currently manufactured and available through standard distribution channels
• RoHS3 Compliance: Meets current regulatory requirements, whereas the SDA07H0K is RoHS non-compliant
• Extended Operating Temperature Range: -40°C to 85°C versus -20°C to 85°C, providing broader thermal performance envelope
• Body Material Upgrade: Polyphenylene Sulfide (PPS) offers enhanced chemical and thermal resistance compared to Polyphthalamide (PPA)
• Reduced Height: 0.183" (4.65mm) versus 0.189" (4.80mm), providing marginal PCB clearance improvement

Both components maintain identical mechanical life and electrical life ratings (1,000 cycles), identical contact materials and finishes, and identical pitch specifications. The height differential of 0.006" (0.15mm) is negligible for standard PCB layout applications.

Frequently Asked Questions (FAQ)

Q: Can SDA07H0B directly replace SDA07H0K in existing designs?

A: Yes. Both components share identical electrical ratings (25mA, 24VDC, SPST, 7-position) and mechanical specifications (through-hole, 0.100" pitch, PC pin termination). The 0.006" height difference is functionally insignificant for standard applications.

Q: What is the primary reason for substitution?

A: The SDA07H0K is classified as obsolete. The SDA07H0B is an active product within the same SDA series, ensuring continued availability and supply chain reliability.

Q: Are there compliance differences between these parts?

A: Yes. The SDA07H0B is ROHS3 compliant, while the SDA07H0K is RoHS non-compliant. For applications subject to RoHS regulations, the SDA07H0B is the required choice.

Q: Do the body material differences affect performance?

A: The SDA07H0B uses Polyphenylene Sulfide (PPS) versus Polyphthalamide (PPA) in the SDA07H0K. PPS provides enhanced chemical and thermal resistance. Both materials are suitable for standard DIP switch applications.

Q: What is the operating temperature difference?

A: The SDA07H0B operates from -40°C to 85°C, while the SDA07H0K operates from -20°C to 85°C. The SDA07H0B provides a 20°C lower temperature rating, expanding the usable thermal envelope.

Q: Are packaging options different?

A: The SDA07H0K packaging is listed as "-" (unspecified), while the SDA07H0B is supplied in Tube packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both parts have identical electrical and mechanical life ratings?

A: Yes. Both components are rated for 1,000 mechanical cycles and 1,000 electrical cycles.

Q: Are there any PCB layout considerations?

A: The height difference of 0.006" (0.15mm) is negligible. Both components use identical 0.100" (2.54mm) pitch and PC pin termination, requiring no PCB layout modifications.