Equivalent & Substitute Parts for 76PSB12S

Part Overview

The 76PSB12S is a 12-position DIP switch manufactured by Grayhill Inc., featuring SPST (Single Pole Single Throw) circuit configuration with piano actuator design. This component is rated for 150mA at 30VDC and is designed for through-hole, right-angle mounting applications. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations.

Substiute Parts

76PSB12S

Grayhill Inc.In Stock: 123176PSB12S Datasheet

Current PartRFQ

76PSB12ST

Grayhill Inc.In Stock: 576876PSB12ST Datasheet

DirectRFQ

194-12MST

CTS ElectrocomponentsIn Stock: 1090194-12MST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76PSB12S is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Circuit configuration must be SPST
• Number of positions must be 12
• Actuator type must be piano with raised level
• Mounting type must be through-hole, right-angle
• Pitch must be 0.100" (2.54mm)
• Contact finish must be gold
• Operating temperature range must encompass -40°C to 85°C
• Termination style must be PC pin

Electrical Performance Criteria:

• Current rating must be equal to or greater than 150mA
• Voltage rating must be equal to or greater than 30VDC

Two substitute parts meet these criteria with varying degrees of parameter alignment:

76PSB12ST (Grayhill Inc.): Direct manufacturer equivalent with identical electrical specifications and mechanical configuration. Primary difference is active product status and RoHS3 compliance.

194-12MST (CTS Electrocomponents): Alternative manufacturer option with compatible mechanical form factor and mounting characteristics. Electrical specifications differ: 50mA current rating and 24VDC voltage rating represent reduced electrical capacity compared to the main part.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred):

The 76PSB12ST is the primary substitute for the obsolete 76PSB12S. Both components are manufactured by Grayhill Inc. and share identical electrical ratings (150mA, 30VDC), mechanical configuration, and physical dimensions. The 76PSB12ST is currently in active production status and carries ROHS3 compliance certification, making it suitable for new designs and legacy system support. Packaging differs (tube versus bulk), but electrical and mechanical compatibility is complete.

For Alternative Sourcing:

The 194-12MST from CTS Electrocomponents provides a mechanically compatible alternative with the same 12-position SPST configuration and piano actuator design. However, this component has reduced electrical capacity (50mA at 24VDC versus 150mA at 30VDC). Selection of the 194-12MST is appropriate only for applications where the circuit operates within the lower electrical specifications. The 194-12MST offers extended electrical life (7,000 cycles versus 2,000 cycles) and ROHS3 compliance. Height above board is 0.311" (7.90mm) compared to 0.301" (7.65mm) for the main part, requiring PCB layout verification.

Compliance Considerations:

Both substitute parts carry ROHS3 compliance and REACH unaffected status. The main part 76PSB12S is RoHS non-compliant. New designs should prioritize the 76PSB12ST or 194-12MST to meet current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 76PSB12ST be used as a direct replacement for the 76PSB12S?

A: Yes. The 76PSB12ST is electrically and mechanically identical to the 76PSB12S. Both components feature 12-position SPST configuration, 150mA at 30VDC rating, piano actuator design, and 0.100" pitch. The primary difference is product status (active versus obsolete) and packaging format (tube versus bulk). No circuit modifications are required.

Q: What are the limitations of using the 194-12MST as a substitute?

A: The 194-12MST has reduced electrical capacity: 50mA current rating and 24VDC voltage rating compared to the 76PSB12S specifications of 150mA and 30VDC. This component is suitable only for applications operating within these lower electrical parameters. Additionally, the height above board is 0.311" (7.90mm) versus 0.301" (7.65mm), requiring verification that PCB clearances accommodate this 0.010" difference.

Q: Are there packaging differences between the substitute parts?

A: Yes. The 76PSB12S is supplied in bulk packaging. The 76PSB12ST and 194-12MST are supplied in tube packaging. Tube packaging provides improved component protection and is standard for active production parts. Bulk to tube conversion does not affect component functionality.

Q: Do the substitute parts meet current regulatory compliance?

A: Both the 76PSB12ST and 194-12MST carry ROHS3 compliance certification and REACH unaffected status. The original 76PSB12S is RoHS non-compliant. For applications requiring regulatory compliance, either substitute part is appropriate.

Q: What is the mechanical life difference between the main part and 194-12MST?

A: The 76PSB12S and 76PSB12ST both specify 2,000 mechanical cycles. The 194-12MST does not provide mechanical life specification in the available data. However, the 194-12MST specifies 7,000 electrical cycles compared to 2,000 electrical cycles for the other components, indicating extended operational life in electrical switching applications.

Q: Can I use the 194-12MST in a 30VDC circuit?

A: No. The 194-12MST is rated for 24VDC maximum. Operating this component at 30VDC exceeds its voltage specification and creates risk of component failure or electrical hazard. The 76PSB12ST must be used for 30VDC applications.