DIP Switch Piano 194-12MST Equivalent & Substitute Parts

Part Overview

The CTS Electrocomponents 194-12MST is a 12-position DIP switch with SPST circuit configuration, designed for through-hole, right-angle mounting applications. This component operates at 24VDC with a 50mA current rating and features a piano-style actuator with gold-plated contacts. The part is Active status and RoHS3 compliant, making it suitable for modern electronic assemblies requiring reliable switching functionality in compact form factors.

Substitute parts become necessary when the primary component faces supply constraints, end-of-life transitions, or when application requirements permit operation at higher electrical ratings while maintaining mechanical and functional compatibility.

Substiute Parts

194-12MST

CTS ElectrocomponentsIn Stock: 1090194-12MST Datasheet

Current PartRFQ

76PSB12ST

Grayhill Inc.In Stock: 576876PSB12ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Grayhill Inc. 76PSB12ST qualifies as a functional substitute for the 194-12MST based on the following critical parameters:

Matching Parameters:

• Circuit configuration: SPST (Single Pole, Single Throw)
• Number of positions: 12
• Actuator type: Piano, raised level
• Mounting configuration: Through hole, right angle
• Pitch spacing: 0.100" (2.54mm)
• Contact finish: Gold plating
• Operating temperature range: -40°C to 85°C
• Packaging: Tube
• Compliance: RoHS3 compliant, REACH unaffected

Electrical Rating Differences: The 76PSB12ST operates at higher electrical ratings (150mA at 30VDC) compared to the 194-12MST (50mA at 24VDC). This represents an upward compatibility margin, allowing the substitute to handle applications within the original part's electrical envelope while providing additional capacity for future design flexibility.

Physical Dimension Variance: Height above board differs by 0.010" (0.25mm), and length differs by 0.006" (0.15mm). These minor variations fall within typical PCB layout tolerances for through-hole components with identical pitch spacing.

Parameter Comparison

Engineering Selection Recommendations

Both the 194-12MST and 76PSB12ST maintain Active product status and full RoHS3 compliance with REACH unaffected designation, ensuring regulatory alignment for current and future manufacturing requirements.

The 194-12MST is the primary selection when electrical life cycle requirements exceed 2,000 cycles, as it provides 7,000 cycles of rated operation. The 76PSB12ST serves as a direct functional substitute when supply availability of the primary part is constrained, provided the application's switching cycle count remains within the 2,000-cycle specification.

Both components share identical circuit topology, position count, actuator mechanics, and thermal operating range. The electrical rating uplift of the 76PSB12ST (150mA/30VDC versus 50mA/24VDC) presents no compatibility risk for applications designed to the original 194-12MST specifications, as the substitute operates with design margin in all electrical parameters.

Physical dimensions are functionally equivalent for PCB layout purposes, with variations of less than 0.015" across all measured axes.

Frequently Asked Questions (FAQ)

Q: Can the 76PSB12ST directly replace the 194-12MST on an existing PCB?

A: Yes. Both components share identical pitch spacing (0.100"), mounting type (through hole, right angle), and actuator configuration (piano, raised). Physical dimension variations are within standard PCB layout tolerances. Pin-to-pin compatibility is confirmed.

Q: What is the significance of the higher current and voltage ratings on the 76PSB12ST?

A: The 76PSB12ST's 150mA/30VDC rating represents upward electrical compatibility. Applications designed for the 194-12MST's 50mA/24VDC envelope operate safely within the substitute's electrical envelope. The higher ratings do not affect switching performance or mechanical function.

Q: Does the difference in electrical life (7,000 cycles vs. 2,000 cycles) affect substitution suitability?

A: Electrical life differences are application-dependent. If your design requires more than 2,000 switching cycles, the 194-12MST is the appropriate selection. For applications with cycle counts below 2,000, the 76PSB12ST is functionally equivalent.

Q: Are both parts equally compliant with current regulatory standards?

A: Yes. Both the 194-12MST and 76PSB12ST are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and assembly.

Q: What packaging format is used for both parts?

A: Both components are supplied in tube packaging, maintaining consistent handling and storage requirements across substitution scenarios.