CTS Electrocomponents 209-9LPST DIP Switch Equivalent & Substitute Parts

Part Overview

The CTS Electrocomponents 209-9LPST is a 9-position DIP switch with SPST circuit configuration, rated for 100mA at 20VDC. This through-hole mounted component features a slide actuator with flush, recessed positioning and gold-plated beryllium copper contacts. The part is actively produced and ROHS3 compliant, making it suitable for applications requiring reliable switching in compact form factors. Equivalent parts may be required due to inventory constraints, supply chain considerations, or specific application requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

209-9LPST

CTS ElectrocomponentsIn Stock: 1154209-9LPST Datasheet

Current PartRFQ

SD09H0B

C&KIn Stock: 1550SD09H0B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 209-9LPST is determined by the following critical parameters:

• Circuit Configuration: Must be SPST (Single Pole Single Throw)
• Number of Positions: Must be 9
• Current Rating: Must be 100mA minimum
• Voltage Rating: Must be 20VDC or higher
• Actuator Type: Must be Slide (Standard) with Flush, Recessed level
• Mounting Type: Must be Through Hole
• Pitch: Must be 0.100" (2.54mm)
• Contact Material: Must be Beryllium Copper
• Contact Finish: Must be Gold
• Operating Temperature Range: Must support -40°C ~ 85°C
• Termination Style: Must be PC Pin
• Packaging: Tube format

The C&K SD09H0B meets all substitution criteria within these allowed parameters.

Parameter Comparison

Engineering Selection Recommendations

The C&K SD09H0B is a direct functional equivalent to the CTS 209-9LPST. Both components are actively produced and ROHS3 compliant. The SD09H0B provides a higher voltage rating (25VDC versus 20VDC), which is compatible with applications designed for the 209-9LPST. Physical dimensions are virtually identical, with height above board differing by only 0.05mm (0.002"), which is within standard PCB assembly tolerances. Both parts carry identical electrical life ratings, operating temperature ranges, and regulatory compliance certifications. Selection between these parts may be based on availability, lead time, or supply chain preferences, as electrical and mechanical performance characteristics are equivalent within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the C&K SD09H0B replace the CTS 209-9LPST in existing designs?

A: Yes. The SD09H0B meets all critical electrical and mechanical parameters. The higher voltage rating (25VDC) is compatible with 20VDC applications. Physical dimensions are equivalent within assembly tolerances.

Q: Are there differences in contact reliability between these parts?

A: Both parts feature identical contact material (beryllium copper with gold finish) and electrical life ratings (2,000 cycles). Reliability characteristics are equivalent.

Q: Do both parts support the same operating temperature range?

A: Yes. Both the 209-9LPST and SD09H0B operate across -40°C to 85°C.

Q: Are there packaging differences?

A: Both parts are supplied in tube packaging format.

Q: What is the pitch compatibility?

A: Both parts use 0.100" (2.54mm) pitch with full spacing, ensuring identical PCB footprint compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected.

Q: Is there a mechanical life specification for these parts?

A: The CTS 209-9LPST does not specify mechanical life. The C&K SD09H0B specifies 2,000 cycles mechanical life, matching its electrical life rating.