Grayhill 76SB03 DIP Switch Rocker SPST Equivalent & Substitute Parts

Part Overview

The Grayhill 76SB03 is a DIP switch rocker actuator with SPST circuit configuration, rated for 150mA at 30VDC. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The 76SB03 features a through-hole mounting configuration with PC pin termination, suitable for applications requiring manual circuit configuration in industrial and commercial electronics.

Substiute Parts

76SB03

Grayhill Inc.In Stock: 112676SB03 Datasheet

Current PartRFQ

76SB03T

Grayhill Inc.In Stock: 500176SB03T Datasheet

DirectRFQ

206-3

CTS ElectrocomponentsIn Stock: 6263206-3 Datasheet

DirectRFQ

3-435640-0

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11603-435640-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76SB03 is determined by the following critical parameters: circuit type (SPST), number of positions (3), mounting configuration (through-hole with PC pin termination), pitch spacing (0.100"), and physical envelope constraints (height and length). Current and voltage ratings establish the upper operational limits; substitute parts must not exceed the application requirements but may provide equal or greater capacity within the same form factor.

The substitute parts are grouped into two categories:

Direct Equivalent (Form Factor and Electrical Match): Parts maintaining identical or superior electrical specifications with compatible physical dimensions.

Functional Equivalent (Electrical Compatibility with Parameter Variance): Parts meeting circuit and mounting requirements but with differing actuator types or electrical ratings that require application-level verification.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Grayhill 76SB03T

The 76SB03T is the direct equivalent replacement for the obsolete 76SB03. Both parts share identical electrical specifications (150mA, 30VDC), circuit configuration (SPST), physical dimensions, and mechanical characteristics. The 76SB03T is currently in active production status with ROHS3 compliance certification, addressing regulatory requirements for new designs. Packaging is supplied in tube format. This part provides drop-in compatibility with existing PCB layouts and schematics without design modification.

Secondary Recommendation: CTS Electrocomponents 206-3

The 206-3 is a functional equivalent suitable for applications where current requirements do not exceed 50mA and voltage does not exceed 24VDC. This part maintains identical mounting configuration, pitch spacing, and through-hole termination. The 206-3 features a slide actuator rather than rocker actuator and provides extended electrical life (10,000 cycles versus 2,000 cycles). The 206-3 is ROHS3 compliant and active in production. Selection of this part requires confirmation that application current and voltage specifications are within the 50mA/24VDC envelope.

Tertiary Recommendation: TE Connectivity ALCOSWITCH 3-435640-0

The 3-435640-0 is a functional equivalent for applications operating at 5VDC with current requirements not exceeding 60mA. This part maintains rocker actuator configuration and identical pitch spacing. Operating temperature range extends to 105°C maximum. This part is suitable only for low-voltage applications and requires explicit verification that circuit voltage and current specifications align with 5VDC/60mA ratings. RoHS status is not applicable for this component.

Frequently Asked Questions (FAQ)

Q: Can the 76SB03T be used as a direct replacement for the 76SB03?

A: Yes. The 76SB03T is electrically and mechanically identical to the 76SB03, with identical current rating (150mA), voltage rating (30VDC), actuator type (rocker), and physical dimensions. The 76SB03T is the recommended replacement due to active production status and ROHS3 compliance.

Q: What are the limitations of using the CTS 206-3 as a substitute?

A: The 206-3 has reduced current capacity (50mA maximum versus 150mA) and voltage rating (24VDC versus 30VDC). Applications must operate within these electrical limits. Additionally, the 206-3 uses a slide actuator instead of rocker actuator, which may affect user interface and panel layout considerations.

Q: Is the TE Connectivity 3-435640-0 suitable for 30VDC applications?

A: No. The 3-435640-0 is rated for 5VDC maximum. Use of this part in 30VDC circuits exceeds component specifications and is not permitted.

Q: What is the pitch spacing for all substitute parts?

A: All substitute parts maintain 0.100" (2.54mm) pitch spacing, ensuring compatibility with existing PCB hole patterns and footprints designed for the 76SB03.

Q: Are all substitute parts RoHS compliant?

A: The 76SB03T and 206-3 are ROHS3 compliant. The 3-435640-0 has RoHS status listed as not applicable. The original 76SB03 is RoHS non-compliant. Regulatory requirements for new designs should specify ROHS3 compliant alternatives (76SB03T or 206-3).

Q: What is the difference in height between the main part and substitutes?

A: The 76SB03 and 76SB03T have identical height of 0.315" (8.00mm). The 206-3 is 0.334" (8.48mm) and the 3-435640-0 is 0.340" (8.64mm). Height variance may affect panel cutout and bezel clearance; verify mechanical envelope constraints before selection.

Q: Which substitute part has the longest electrical life rating?

A: The CTS 206-3 specifies 10,000 electrical cycles, compared to 2,000 cycles for the 76SB03, 76SB03T, and 3-435640-0. Extended electrical life may be advantageous for high-cycle applications.