Grayhill 90B10S DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 90B10S is a 10-position DIP switch with SPST (Single Pole Single Throw) circuit configuration, rated for 25mA at 24VDC. This component features a slide actuator with flush, recessed level and gold-plated copper alloy contacts. The 90B10S is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

The primary reason for identifying substitutes is the obsolete product status of the 90B10S. Active equivalent models ensure design continuity and supply chain reliability for applications requiring 10-position DIP switches with comparable electrical and mechanical specifications.

Substiute Parts

90B10S

Grayhill Inc.In Stock: 92290B10S Datasheet

Current PartRFQ

90B10ST

Grayhill Inc.In Stock: 189390B10ST Datasheet

DirectRFQ

209-10LPST

CTS ElectrocomponentsIn Stock: 8301209-10LPST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Grayhill 90B10S is determined by the following critical parameters:

Primary Compatibility Criteria:

• SPST circuit configuration
• 10-position switch array
• Slide actuator type with flush, recessed level
• Through-hole mounting with 0.100" (2.54mm) pitch
• Gold-plated contact finish
• Operating temperature range of -40°C to 85°C

Electrical Compatibility Criteria:

• Current rating equal to or greater than 25mA
• Voltage rating equal to or greater than 24VDC

Mechanical Compatibility Criteria:

• PC pin termination style
• Height above board within acceptable tolerance for PCB assembly

The substitute parts identified meet these core criteria, ensuring functional and mechanical interchangeability within the specified electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

90B10ST (Grayhill Inc.) - Primary Substitute

The 90B10ST is the direct active equivalent of the 90B10S. Both parts share identical electrical ratings (25mA at 24VDC), mechanical dimensions, and actuator specifications. The 90B10ST differs only in product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant). For applications requiring RoHS3 compliance or long-term supply assurance, the 90B10ST is the recommended substitute. Packaging is supplied in tube format.

209-10LPST (CTS Electrocomponents) - Alternative Substitute

The 209-10LPST is a cross-manufacturer substitute suitable for applications where the electrical operating envelope permits. This part provides higher current capacity (100mA versus 25mA) and is ROHS3 compliant. The voltage rating is 20VDC, which is lower than the 90B10S specification of 24VDC. The 209-10LPST is appropriate for designs operating at 20VDC or lower with current requirements up to 100mA. Height above board is 0.180" (4.57mm), compared to 0.195" (4.95mm) for the 90B10S, which may affect PCB layout considerations. Packaging is supplied in tube format.

Both substitute parts maintain SPST circuit configuration, 10-position array, slide actuator with flush recessed level, through-hole mounting, 0.100" pitch, and gold-plated contacts. Both operate across the -40°C to 85°C temperature range and achieve 2,000 electrical cycles.

Frequently Asked Questions (FAQ)

Q: Can the 90B10ST directly replace the 90B10S without circuit modification?

A: Yes. The 90B10ST is electrically and mechanically identical to the 90B10S. Both are rated for 25mA at 24VDC with identical actuator type, pitch, and termination style. Direct substitution is supported without circuit redesign.

Q: What is the primary difference between the 90B10S and 90B10ST?

A: The 90B10S is obsolete, while the 90B10ST is active. The 90B10ST is ROHS3 compliant, whereas the 90B10S is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Can the 209-10LPST replace the 90B10S in a 24VDC circuit?

A: The 209-10LPST is rated for 20VDC maximum, which is below the 90B10S specification of 24VDC. Use of the 209-10LPST in a 24VDC circuit exceeds its voltage rating and is not supported. The 209-10LPST is suitable only for applications operating at 20VDC or lower.

Q: What are the packaging differences between these substitutes?

A: The 90B10S is supplied with standard packaging (dash notation). The 90B10ST and 209-10LPST are both supplied in tube packaging. Verify tube packaging compatibility with your assembly process before procurement.

Q: Does the 209-10LPST offer any advantages over the 90B10ST?

A: The 209-10LPST provides higher current capacity (100mA versus 25mA) and is suitable for applications requiring greater current handling. However, its 20VDC voltage rating limits use to lower-voltage designs. For 24VDC applications, the 90B10ST is the appropriate choice.

Q: Are all three parts washable?

A: Yes. The 90B10S, 90B10ST, and 209-10LPST are all washable, supporting aqueous and semi-aqueous cleaning processes.

Q: What is the mechanical life specification for these switches?

A: The 90B10S and 90B10ST both specify 2,000 mechanical cycles. The 209-10LPST does not provide a mechanical life specification in the available data.

Q: How do the physical dimensions compare?

A: The 90B10S and 90B10ST are identical at 1.070" (27.18mm) length and 0.195" (4.95mm) height above board. The 209-10LPST is slightly shorter at 1.058" (26.87mm) length and 0.180" (4.95mm) height above board. These dimensional differences are minor and typically do not affect PCB layout compatibility.

Q: Are these parts suitable for high-reliability applications?

A: All three parts achieve MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status. The 90B10ST and 209-10LPST are ROHS3 compliant, supporting compliance-driven applications. Verify specific reliability requirements against the 2,000-cycle electrical and mechanical life specifications.