CTS Electrocomponents 209-12MS DIP Switch Equivalent & Substitute Parts

Part Overview

The CTS Electrocomponents 209-12MS is a 12-position DIP switch with SPST circuit configuration, rated for 100mA at 20VDC. This component features a slide actuator with beryllium copper contacts finished in gold, designed for through-hole mounting with 0.100" pitch. The product is active and in stock with 724 units available. Alternative equivalent parts may be required due to design specification changes, application voltage/current upgrades, or supply chain considerations.

Substiute Parts

209-12MS

CTS ElectrocomponentsIn Stock: 810209-12MS Datasheet

Current PartRFQ

76SB12T

Grayhill Inc.In Stock: 90676SB12T Datasheet

SimilarRFQ

78B12T

Grayhill Inc.In Stock: 117578B12T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitution for the 209-12MS is determined by the following critical parameters: SPST circuit configuration, 12-position count, through-hole mounting with 0.100" pitch, and operating temperature range of -40°C to 85°C. Substitute parts must maintain these core functional requirements.

The identified substitute parts are grouped as follows:

Group 1 - Rocker Actuator Variant (76SB12T): Grayhill Inc. 76SB12T provides higher electrical ratings (150mA at 30VDC) with rocker actuator instead of slide actuator. Maintains 12-position SPST configuration, through-hole mounting, and 0.100" pitch.

Group 2 - Slide Actuator Variant (78B12T): Grayhill Inc. 78B12T provides higher electrical ratings (150mA at 30VDC) with slide actuator matching the original actuator type. Maintains 12-position SPST configuration, through-hole mounting, and 0.100" pitch.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and ROHS3 compliance with identical moisture sensitivity levels. Selection between the 209-12MS and its substitutes depends on application requirements:

The 209-12MS is suitable for applications requiring 100mA at 20VDC with slide actuator operation and compact height profile (0.190" above board).

The 76SB12T provides higher electrical ratings (150mA at 30VDC) with rocker actuator operation and increased height (0.315" above board). This substitute is applicable when higher voltage/current margins are required and rocker actuation is acceptable for the application.

The 78B12T provides higher electrical ratings (150mA at 30VDC) while maintaining slide actuator operation. This substitute is applicable when higher voltage/current margins are required while preserving the original actuator type. The increased height (0.315" above board) must be verified against PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can the 76SB12T rocker actuator variant be used as a direct replacement for the 209-12MS slide actuator?

A: The 76SB12T maintains the same SPST 12-position configuration, pitch, and mounting type. However, the rocker actuator differs from the slide actuator, and the height above board increases from 0.190" to 0.315". PCB layout and user interface requirements must accommodate these mechanical differences.

Q: What are the key differences between the 78B12T and 209-12MS?

A: Both parts use slide actuators and maintain identical circuit configuration and position count. The 78B12T provides higher electrical ratings (150mA at 30VDC versus 100mA at 20VDC) and increased height above board (0.315" versus 0.190"). Contact material differs: beryllium copper in the 209-12MS versus copper alloy in the 78B12T.

Q: Are all substitute parts packaged identically?

A: All three parts are supplied in tube packaging. Pitch and mounting type are identical at 0.100" (2.54mm) and through-hole respectively.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 with identical HTSUS codes. Moisture sensitivity level is 1 (Unlimited) for all parts.

Q: What is the impact of the height difference on PCB design?

A: The 209-12MS has a height of 0.190" above board, while both Grayhill substitutes measure 0.315" above board. This 0.125" increase must be evaluated against available vertical clearance in the application enclosure or assembly.