Grayhill 97C04SR DIP Switch SPST Equivalent & Substitute Parts

Part Overview

The Grayhill 97C04SR is a surface mount DIP switch featuring SPST (Single Pole Single Throw) configuration with 4 positions, rated for 25mA at 24VDC. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance where the original part number is no longer in active production.

Substiute Parts

97C04SR

Grayhill Inc.In Stock: 121897C04SR Datasheet

Current PartRFQ

97C04SRT

Grayhill Inc.In Stock: 167897C04SRT Datasheet

DirectRFQ

1571983-5

TE Connectivity ALCOSWITCH SwitchesIn Stock: 16371571983-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 97C04SR are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Primary Matching Criteria:

• Circuit configuration: SPST
• Number of positions: 4
• Current rating: 25mA
• Voltage rating: 24VDC
• Actuator type: Slide (Standard)
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Pitch: 0.050" (1.27mm), Half
• Contact material: Copper Alloy
• Contact finish: Gold

Acceptable Variation Parameters:

• Height above board (minor dimensional variance)
• Body material (alternative polymers with equivalent performance)
• Operating temperature range (extended lower limit acceptable)
• Mechanical life (equal or greater cycles)
• Product status (active status preferred for ongoing availability)

The 97C04SR has two identified substitutes: the Grayhill 97C04SRT and the TE Connectivity 1571983-5. Both maintain all critical electrical parameters and mounting specifications required for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Grayhill 97C04SRT (Direct Manufacturer Substitute)

The 97C04SRT is the primary recommended substitute for the obsolete 97C04SR. Both parts are manufactured by Grayhill Inc. and share identical electrical specifications, physical dimensions, and material composition. The 97C04SRT maintains active product status, ensuring ongoing availability and supply chain continuity. This part is available in Cut Tape (CT) and Digi-Reel® packaging formats. All compliance certifications including ROHS3 and EAR99 classification are maintained. Selection of the 97C04SRT eliminates design modification requirements and provides direct functional equivalence.

TE Connectivity 1571983-5 (Cross-Manufacturer Substitute)

The 1571983-5 from TE Connectivity ALCOSWITCH Switches series GDH is a functional equivalent that maintains all critical electrical parameters: SPST configuration, 4 positions, 25mA current rating, and 24VDC voltage rating. This part is active in production and available in Cut Tape (CT) and Digi-Reel® packaging. Dimensional variations exist: the 1571983-5 has a height above board of 0.091" (2.30mm) compared to 0.063" (1.60mm) for the 97C04SR, and body material differs (Polyphenylene Sulfide versus Polyamide). The operating temperature range is -30°C to 85°C, which is acceptable for applications not requiring the full -40°C lower limit. This part is suitable for applications where cross-manufacturer sourcing is acceptable and PCB layout accommodates the increased height dimension.

Frequently Asked Questions (FAQ)

Q: Can the 97C04SRT be used as a direct replacement for the 97C04SR without PCB modification?

A: Yes. The 97C04SRT is dimensionally and functionally identical to the 97C04SR. Both parts share the same height above board (0.063"), length (0.248"), pitch (0.050"), and gull wing termination style. No PCB layout changes are required.

Q: What are the key differences between the 97C04SRT and the 1571983-5?

A: The primary differences are manufacturer (Grayhill versus TE Connectivity), body material (Polyamide versus Polyphenylene Sulfide), and height above board (0.063" versus 0.091"). All electrical specifications remain identical. The 1571983-5 requires verification that the increased height does not conflict with PCB assembly constraints or component clearances.

Q: Is the 1571983-5 suitable for applications requiring -40°C operation?

A: The 1571983-5 has an operating temperature range of -30°C to 85°C. Applications requiring -40°C operation must use the 97C04SR or 97C04SRT, which are rated to -40°C.

Q: Are all three parts RoHS3 compliant?

A: Yes. The 97C04SR, 97C04SRT, and 1571983-5 are all ROHS3 compliant. All three parts carry EAR99 export classification and HTSUS code 8536.50.9065.

Q: What packaging options are available for substitute parts?

A: The 97C04SRT and 1571983-5 are both available in Cut Tape (CT) and Digi-Reel® packaging formats. The original 97C04SR is listed with standard packaging designation.

Q: Can the 1571983-5 be used in high-reliability applications?

A: The 1571983-5 meets the same mechanical life specification (1,000 cycles) as the 97C04SR and additionally specifies electrical life (1,000 cycles). Both parts are suitable for applications within these cycle specifications. Compliance certifications (ROHS3, EAR99) are equivalent.

Q: What is the moisture sensitivity level for the 1571983-5?

A: The 1571983-5 has moisture sensitivity level listed as Not Applicable, indicating it does not require moisture-controlled storage. The 97C04SR and 97C04SRT both have MSL 1 (Unlimited), also indicating no moisture sensitivity restrictions.

Q: Are there inventory considerations when selecting between substitutes?

A: Current inventory levels are: 97C04SR (1,139 pcs), 97C04SRT (1,585 pcs), and 1571983-5 (1,545 pcs). The 97C04SRT offers the highest inventory availability among active products.