Grayhill 76SB03S DIP Switch Rocker SPST Equivalent & Substitute Parts

Part Overview

The Grayhill 76SB03S is a DIP switch featuring a rocker actuator with SPST (Single Pole Single Throw) circuit configuration, rated for 150mA at 30VDC. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The 76SB03S is designed for through-hole mounting applications requiring washable, sealed terminal construction with gold-plated copper alloy contacts.

Substiute Parts

76SB03S

Grayhill Inc.In Stock: 83076SB03S Datasheet

Current PartRFQ

76SB03ST

Grayhill Inc.In Stock: 551976SB03ST Datasheet

DirectRFQ

206-3ST

CTS ElectrocomponentsIn Stock: 13568206-3ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76SB03S is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPST)
• Number of positions (3)
• Mounting type (Through Hole)
• Pitch spacing (0.100" / 2.54mm)
• Termination style (PC Pin)
• Washable construction capability
• Actuator level (Raised)

Electrical Performance Criteria:

• Current rating must equal or exceed 150mA
• Voltage rating must equal or exceed 30VDC
• Operating temperature range must encompass -40°C to 85°C

Mechanical Compatibility Criteria:

• Height above board and overall dimensions must be compatible with existing PCB layouts
• Contact material and finish must support equivalent switching performance

Two substitute parts are identified based on these parameters:

1. 76SB03ST (Grayhill Inc.) – Direct equivalent with identical electrical and mechanical specifications
2. 206-3ST (CTS Electrocomponents) – Functional substitute with parameter deviations requiring evaluation

Parameter Comparison

Engineering Selection Recommendations

76SB03ST (Grayhill Inc.) – Recommended Primary Substitute

The 76SB03ST is the direct equivalent to the obsolete 76SB03S. All electrical parameters (150mA, 30VDC), mechanical dimensions, and functional characteristics are identical. The 76SB03ST is currently in active production status with 5,432 units available in inventory. The primary distinction is RoHS3 compliance, which represents an improvement over the non-compliant original part. This substitute requires no design modifications and provides direct pin-for-pin compatibility. Packaging is supplied in tube format.

206-3ST (CTS Electrocomponents) – Conditional Functional Substitute

The 206-3ST is a functional substitute suitable only for applications where the following parameter deviations are acceptable:

• Current rating reduced from 150mA to 50mA
• Voltage rating reduced from 30VDC to 24VDC
• Actuator type changed from rocker to slide (standard)
• Height above board increased from 0.315" to 0.334"
• Electrical life extended from 2,000 to 10,000 cycles

The 206-3ST is appropriate for low-current switching applications (≤50mA) at reduced voltage (≤24VDC). The slide actuator presents a different user interface compared to the rocker design. This substitute offers RoHS3 compliance and extended electrical life. Packaging is supplied in tube format with 13,461 units available in inventory.

Frequently Asked Questions (FAQ)

Q: Can the 76SB03ST be used as a direct replacement for the 76SB03S without PCB modifications?

A: Yes. The 76SB03ST is electrically and mechanically identical to the 76SB03S. Pin pitch (0.100"), height above board (0.315"), and all electrical ratings match exactly. No PCB layout changes are required.

Q: What is the primary difference between the 76SB03S and 76SB03ST?

A: The 76SB03ST is the active production equivalent of the obsolete 76SB03S. Both parts share identical specifications. The 76SB03ST carries RoHS3 compliance certification, whereas the original 76SB03S is RoHS non-compliant. Packaging differs: 76SB03S uses tape seal packaging, while 76SB03ST is supplied in tube format.

Q: Can the 206-3ST replace the 76SB03S in all applications?

A: No. The 206-3ST has reduced electrical ratings (50mA vs. 150mA; 24VDC vs. 30VDC) and uses a slide actuator instead of a rocker. Substitution is valid only for applications operating within these lower electrical parameters and where the slide actuator interface is acceptable.

Q: What are the key electrical differences between the 76SB03ST and 206-3ST?

A: The 76SB03ST maintains the original 150mA/30VDC ratings. The 206-3ST is rated for 50mA/24VDC. Applications requiring the full 150mA capacity or 30VDC operation must use the 76SB03ST. The 206-3ST is suitable only for circuits operating at 50mA or less and 24VDC or less.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 76SB03ST and 206-3ST carry RoHS3 compliance certification. The original 76SB03S is RoHS non-compliant. If RoHS compliance is a design requirement, either substitute part is acceptable within their respective electrical parameter ranges.

Q: What is the mechanical life rating for each part?

A: The 76SB03S and 76SB03ST both specify 2,000 mechanical cycles. The 206-3ST does not provide a mechanical life specification in the available data. Both parts specify electrical life ratings: 2,000 cycles for the Grayhill parts and 10,000 cycles for the CTS part.

Q: How do the operating temperature ranges compare?

A: The 76SB03S and 76SB03ST operate from -40°C to 85°C. The 206-3ST operates from -55°C to 85°C, providing a wider low-temperature range. For applications requiring operation below -40°C, the 206-3ST is suitable if electrical parameters are within acceptable limits.

Q: What packaging formats are available for these parts?

A: The 76SB03S uses tape seal packaging. The 76SB03ST and 206-3ST are both supplied in tube packaging. Verify packaging compatibility with assembly equipment and procurement workflows.