CTS Electrocomponents 206-9ST DIP Switch Equivalent & Substitute Parts

Part Overview

The CTS Electrocomponents 206-9ST is a 9-position DIP switch with SPST circuit configuration, rated for 50mA at 24VDC. This through-hole mounted component features a slide actuator with gold-plated contacts and is designed for applications requiring reliable switching in industrial and commercial environments. The part is currently active in production with 831 units in stock. Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameter ranges for DIP switch applications.

Substiute Parts

206-9ST

CTS ElectrocomponentsIn Stock: 876206-9ST Datasheet

Current PartRFQ

78B09ST

Grayhill Inc.In Stock: 576778B09ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Grayhill Inc. 78B09ST is identified as a substitute for the CTS 206-9ST based on the following substitution criteria:

Matching Parameters:

• Circuit configuration: SPST
• Number of positions: 9
• Actuator type: Slide (Standard)
• Mounting type: Through Hole
• Pitch: 0.100" (2.54mm)
• Contact finish: Gold
• Packaging: Tube
• RoHS compliance: ROHS3 Compliant

Allowable Parameter Variations: The 78B09ST operates at higher electrical ratings (150mA at 30VDC) compared to the 206-9ST (50mA at 24VDC). This represents an upward compatibility margin, allowing the substitute to handle the original part's electrical requirements. The operating temperature range of the 78B09ST (-40°C ~ 85°C) encompasses the critical upper limit of the original part's range (-55°C ~ 85°C), with the exception of the lower temperature extreme. Physical dimensions remain compatible within through-hole PCB mounting constraints.

Parameter Comparison

Engineering Selection Recommendations

Both the CTS 206-9ST and Grayhill 78B09ST are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

The 206-9ST is the primary selection when the application requires the extended lower operating temperature range (-55°C) or when the higher electrical life rating of 10,000 cycles is specified. The 206-9ST also features epoxy sealed terminals in addition to tape seal, providing enhanced environmental protection.

The 78B09ST serves as a substitute when the application operates within the -40°C to 85°C temperature range and the electrical life requirement does not exceed 2,000 cycles. The higher current and voltage ratings of the 78B09ST provide operational margin for applications at or near the 206-9ST's rated limits. The 78B09ST's slightly lower profile (0.315" versus 0.334") may be advantageous in space-constrained PCB layouts.

Selection between these parts should be based on specific application temperature requirements, cycle life expectations, and available inventory.

Frequently Asked Questions (FAQ)

Q: Can the Grayhill 78B09ST directly replace the CTS 206-9ST in an existing design?

A: Direct replacement is possible for applications operating within -40°C to 85°C and requiring electrical life of 2,000 cycles or less. The matching circuit type (SPST), position count (9), actuator style (slide), pitch (0.100"), and contact finish (gold) ensure functional compatibility. The higher current and voltage ratings of the 78B09ST provide operational margin. However, applications requiring the -55°C lower temperature limit or 10,000-cycle electrical life must use the 206-9ST.

Q: What are the key differences between these two parts?

A: The primary differences are electrical ratings, operating temperature range, and electrical life. The 78B09ST is rated for 150mA at 30VDC compared to the 206-9ST's 50mA at 24VDC. The 206-9ST operates from -55°C to 85°C while the 78B09ST operates from -40°C to 85°C. The 206-9ST provides 10,000 electrical cycles versus 2,000 cycles for the 78B09ST. Physical dimensions are similar, with the 78B09ST slightly lower in profile.

Q: Are both parts available in the same packaging?

A: Yes, both the 206-9ST and 78B09ST are supplied in tube packaging, ensuring compatibility with standard component handling and placement equipment.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component use in industrial and commercial applications.

Q: Does the lower electrical life rating of the 78B09ST affect reliability?

A: The electrical life rating indicates the number of switching cycles the component is rated to withstand. The 78B09ST's 2,000-cycle rating is suitable for applications with moderate switching frequency. Applications requiring frequent switching or long service life should specify the 206-9ST with its 10,000-cycle rating.