Grayhill 97C02S DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 97C02S is a surface mount DIP switch featuring SPST (Single Pole Single Throw) configuration with 2 positions, rated for 25mA at 24VDC. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The 97C02S employs a slide actuator with flush, recessed actuation level and gold-plated copper alloy contacts suitable for applications requiring reliable switching in compact form factors.

Substiute Parts

97C02S

Grayhill Inc.In Stock: 72897C02S Datasheet

Current PartRFQ

97C02ST

Grayhill Inc.In Stock: 207197C02ST Datasheet

DirectRFQ

1571983-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 84781571983-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 97C02S are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitutability:

Primary Matching Criteria:

• Circuit configuration: SPST
• Number of positions: 2
• Current rating: 25mA
• Voltage rating: 24VDC
• Actuator type: Slide (Standard)
• Actuator level: Flush, Recessed
• Contact material: Copper Alloy
• Contact finish: Gold
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Pitch: 0.050" (1.27mm), Half
• Mechanical life: 1,000 Cycles

Substitute parts are grouped into two categories: direct manufacturer equivalents from Grayhill Inc. and cross-manufacturer alternatives from TE Connectivity ALCOSWITCH Switches. All identified substitutes maintain the core electrical specifications and mechanical interface requirements necessary for direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

97C02ST (Grayhill Inc.) is the primary direct equivalent for the obsolete 97C02S. Both components share identical electrical ratings, mechanical dimensions, and actuator specifications. The 97C02ST is currently in active production status with ROHS3 compliance, providing a seamless replacement path for designs currently utilizing the 97C02S. The packaging format differs (Tube versus Tape Seal), which may affect procurement and assembly processes but does not impact functional compatibility.

1571983-1 (TE Connectivity ALCOSWITCH Switches) serves as a cross-manufacturer alternative meeting all core electrical and mechanical requirements. This component maintains the same circuit configuration, current and voltage ratings, actuator type, and pitch specifications. Notable differences include a higher height above board (0.091" versus 0.063"), different body material composition (Polyphenylene Sulfide versus Polyamide), and a narrower operating temperature range (-30°C to 85°C versus -40°C to 85°C). The 1571983-1 includes specified electrical life rating (1,000 Cycles) and carries ROHS3 compliance. Selection of this alternative requires verification that the increased height and modified temperature range are acceptable within the target application.

Both substitute parts carry REACH Unaffected status and EAR99 ECCN classification, matching the regulatory profile of the original component.

Frequently Asked Questions (FAQ)

Q: Can the 97C02ST directly replace the 97C02S without PCB modifications?

A: Yes. The 97C02ST maintains identical electrical specifications, mechanical dimensions, actuator configuration, and gull wing termination style. No PCB layout changes are required for functional substitution.

Q: What are the key differences between the 97C02ST and 1571983-1?

A: Both parts meet the core electrical requirements (SPST, 2-position, 25mA, 24VDC) and mechanical interface specifications (slide actuator, flush/recessed level, gull wing termination, 0.050" pitch). The 1571983-1 has a higher profile above the PCB (0.091" versus 0.063"), uses a different body material (PPS versus Nylon), and operates across a narrower temperature range (-30°C to 85°C versus -40°C to 85°C). These differences may impact suitability depending on application constraints.

Q: Is the 97C02S still available for procurement?

A: The 97C02S is classified as obsolete. The 97C02ST (active status) is the recommended replacement from the same manufacturer. The 1571983-1 provides an alternative from TE Connectivity with current production availability.

Q: What packaging formats are available for these substitutes?

A: The 97C02ST is supplied in Tube packaging. The 1571983-1 is also supplied in Tube packaging. Original 97C02S inventory may be available in Tape Seal format, but new procurement should plan for Tube packaging.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 97C02ST and 1571983-1 carry ROHS3 compliance status. The original 97C02S is RoHS non-compliant, making the substitutes suitable for applications with RoHS requirements.

Q: Does the operating temperature range difference affect substitution suitability?

A: The 1571983-1 operates from -30°C to 85°C, compared to the 97C02S/-40°C to 85°C range. If the application requires operation below -30°C, the 1571983-1 is not suitable. The 97C02ST maintains the full -40°C to 85°C range and is preferred for temperature-critical applications.

Q: What is the significance of the height above board difference?

A: The 97C02S and 97C02ST have 0.063" (1.60mm) height, while the 1571983-1 has 0.091" (2.30mm) height. This difference may impact PCB clearance, component stacking, or enclosure fit. Verify mechanical constraints before selecting the TE Connectivity alternative.