Grayhill 97R04SR DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 97R04SR 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, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part employs a slide actuator with flush, recessed positioning and gold-plated copper alloy contacts suitable for washable applications.

Substiute Parts

97R04SR

Grayhill Inc.In Stock: 123597R04SR Datasheet

Current PartRFQ

97R04SRT

Grayhill Inc.In Stock: 97797R04SRT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Grayhill 97R04SR is based on strict electrical and mechanical parameter matching within the Grayhill 97 series. The substitute part must maintain identical specifications across the following critical parameters:

• Circuit topology: SPST configuration
• Position count: 4 positions
• Electrical ratings: 25mA current, 24VDC voltage
• Physical form factor: Surface mount with gull wing termination, 0.050" pitch
• Actuator characteristics: Slide type with flush, recessed level
• Contact system: Copper alloy with gold plating
• Environmental tolerance: -40°C to 85°C operating range
• Mechanical durability: 1,000 cycle mechanical life rating

The Grayhill 97R04SRT satisfies all these parameters and represents the direct functional equivalent within the active product portfolio.

Parameter Comparison

Engineering Selection Recommendations

The Grayhill 97R04SRT is the direct functional equivalent for the obsolete 97R04SR. Selection of the 97R04SRT is based on the following engineering criteria:

Product Status: The 97R04SR is classified as obsolete, making the active-status 97R04SRT the appropriate replacement for new designs and ongoing procurement.

Electrical and Mechanical Compatibility: All electrical ratings (25mA, 24VDC, SPST), mechanical specifications (4-position slide actuator, surface mount gull wing termination, 0.050" pitch), and environmental parameters (-40°C to 85°C) are identical between the two parts.

Compliance Enhancement: The 97R04SRT achieves ROHS3 compliance, whereas the 97R04SR is RoHS non-compliant. This represents an improvement in regulatory alignment for applications subject to RoHS requirements.

Packaging Consideration: The 97R04SRT is supplied in Tape & Reel (TR) packaging, whereas the 97R04SR was supplied in bulk packaging. This difference affects procurement volume handling and automated assembly processes but does not impact electrical or mechanical function.

Regulatory Status: Both parts maintain identical REACH unaffected status and EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can the 97R04SRT be used as a direct replacement for the 97R04SR in existing designs?

A: Yes. The 97R04SRT is electrically and mechanically identical to the 97R04SR across all functional parameters. The parts share identical circuit configuration, electrical ratings, physical dimensions, actuator characteristics, and environmental specifications. The primary difference is product status (active versus obsolete) and improved RoHS compliance.

Q: What is the difference between the bulk packaging of the 97R04SR and the Tape & Reel packaging of the 97R04SRT?

A: Packaging format affects procurement and assembly logistics. Tape & Reel (TR) packaging is standard for automated surface mount assembly processes and provides better component protection during handling. Bulk packaging was the original format for the obsolete 97R04SR. The electrical and mechanical function of the component is unchanged by packaging format.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are rated for 25mA at 24VDC with SPST switching configuration. Contact material (copper alloy with gold plating), mechanical life (1,000 cycles), operating temperature range (-40°C to 85°C), and all other electrical specifications are identical.

Q: Why is the 97R04SRT RoHS3 compliant while the 97R04SR is not?

A: The 97R04SR predates current RoHS3 requirements and was manufactured under earlier standards. The 97R04SRT represents the current production version of this component and incorporates materials and manufacturing processes that satisfy ROHS3 compliance requirements. This does not affect functional equivalence.

Q: Are the physical dimensions and PCB footprint identical?

A: Yes. Both parts have identical height above board (0.061" / 1.55mm), length (0.248" / 6.31mm), pitch (0.050" / 1.27mm half pitch), and gull wing termination style. PCB footprints are identical, allowing direct substitution without layout modifications.

Q: What is the mechanical life rating for both parts?

A: Both the 97R04SR and 97R04SRT are rated for 1,000 mechanical cycles, representing the number of actuator position changes the switch can withstand under normal operating conditions.

Q: Are both parts suitable for washable applications?

A: Yes. Both parts are rated as washable with tape seal features, making them suitable for applications requiring post-assembly cleaning processes.