CTS 210-2MSTF DIP Switch Equivalent & Substitute Parts

Part Overview

The CTS 210-2MSTF is an active-status SPST DIP switch designed for through-hole mounting applications requiring 100mA at 20VDC switching capability. This component features a slide actuator with raised profile, beryllium copper contacts finished in gold, and is sealed with epoxy terminals and tape seal for environmental protection. The part is actively manufactured and stocked, with 1,040 units available in tube packaging.

Equivalent and substitute parts are identified when component availability changes, supply chain constraints occur, or design flexibility permits selection from qualified alternatives that meet the same functional and electrical requirements.

Substiute Parts

210-2MSTF

CTS ElectrocomponentsIn Stock: 1060210-2MSTF Datasheet

Current PartRFQ

SD02H0B

C&KIn Stock: 5391SD02H0B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The C&K SD02H0B qualifies as a direct substitute for the CTS 210-2MSTF based on the following critical parameters:

• Circuit Configuration: Both parts are SPST with 2 positions
• Current Rating: Both rated at 100mA
• Voltage Rating: SD02H0B rated at 25VDC exceeds the 20VDC requirement
• Contact Material & Finish: Both use beryllium copper with gold finish
• Mounting & Pitch: Both are through-hole mounted with 0.100" (2.54mm) pitch
• Operating Temperature: Both operate across -40°C to 85°C
• Compliance: Both are ROHS3 compliant and REACH unaffected
• Packaging: Both supplied in tube format

Substitution is valid when the application voltage requirement does not exceed 20VDC and the mechanical profile differences are accommodated in the PCB layout.

Parameter Comparison

Engineering Selection Recommendations

Both the CTS 210-2MSTF and C&K SD02H0B are active-status components with ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in applications meeting the specified electrical parameters.

Selection between these parts is determined by:

• Voltage Requirement: If the application operates at or below 20VDC, either part is suitable. The SD02H0B's 25VDC rating provides additional margin.
• Mechanical Clearance: The CTS part has a raised actuator profile at 0.190" height, while the SD02H0B has a flush, recessed profile at 0.178" height. PCB layout and enclosure design must accommodate the selected profile.
• Cycle Life: The SD02H0B provides 2,000 electrical and mechanical cycles compared to the CTS part's 1,000 electrical cycles, offering extended operational life in high-cycle applications.
• Availability: Current inventory shows 1,040 units of the CTS part and 5,360 units of the C&K part.

Frequently Asked Questions (FAQ)

Q: Can the C&K SD02H0B directly replace the CTS 210-2MSTF without PCB modification?

A: Electrical substitution is valid. However, the actuator profile difference (raised vs. flush/recessed) and height variance (0.190" vs. 0.178") require verification that the PCB layout and mechanical enclosure accommodate the SD02H0B's lower profile. Pin pitch and termination style are identical.

Q: What is the maximum voltage at which these parts can be used interchangeably?

A: Both parts are suitable for applications operating at 20VDC or below. The CTS 210-2MSTF is rated at 20VDC; the C&K SD02H0B is rated at 25VDC. Applications exceeding 20VDC require the SD02H0B.

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

A: Both use beryllium copper contacts with gold finish. The SD02H0B specifies 2,000 electrical and mechanical cycles, while the CTS part specifies 1,000 electrical cycles. For high-cycle applications, the SD02H0B provides documented extended life.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both are ROHS3 compliant, REACH unaffected, and rated for -40°C to 85°C operation with MSL 1 (unlimited moisture sensitivity level).

Q: What packaging options are available for these parts?

A: Both the CTS 210-2MSTF and C&K SD02H0B are supplied in tube packaging.