GDH10S Equivalent & Substitute Parts

Part Overview

The GDH10S is a 10-position surface mount DIP switch manufactured by TE Connectivity ALCOSWITCH Switches. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing production support and design continuity. The GDH10S operates as a single-pole single-throw (SPST) switch rated for 25mA at 24VDC with a slide actuator and gold-plated copper alloy contacts. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with minor parameter variations that remain within acceptable operating ranges for this switch category.

Substiute Parts

GDH10S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 866GDH10S Datasheet

Current PartRFQ

1-1571983-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 33161-1571983-3 Datasheet

DirectRFQ

218-10LPST

CTS ElectrocomponentsIn Stock: 2128218-10LPST Datasheet

DirectRFQ

97R10ST

Grayhill Inc.In Stock: 101197R10ST Datasheet

SimilarRFQ

97R10T

Grayhill Inc.In Stock: 80297R10T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GDH10S is determined by strict equivalence across the following critical parameters: circuit configuration (SPST), number of positions (10), current rating (25mA), voltage rating (24VDC), actuator type (slide standard), mounting type (surface mount), termination style (gull wing), and pitch (0.050" half). All identified substitute parts maintain these core electrical and mechanical specifications.

Substitute parts are grouped into two categories:

Direct Equivalents maintain all specified parameters with identical or superior compliance status. The part 1-1571983-3 from TE Connectivity ALCOSWITCH Switches is a direct equivalent with active product status and ROHS3 compliance, distinguishing it from the obsolete GDH10S.

Functional Substitutes provide equivalent electrical performance with minor mechanical or material variations. The CTS Electrocomponents 218-10LPST features beryllium copper contacts and extended operating temperature range (-55°C to 85°C). The Grayhill Inc. 97R10T and 97R10ST models utilize polyamide body material and reduced height above board (0.061" versus 0.091"), with extended operating temperature range (-40°C to 85°C).

All substitute parts maintain MSL 1 rating, gull wing termination, gold contact finish, and surface mount configuration. Variations in body material, contact material composition, height, and operating temperature do not affect functional substitution within the specified 24VDC, 25mA application envelope.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 1-1571983-3

The TE Connectivity ALCOSWITCH Switches part number 1-1571983-3 is the preferred direct equivalent for GDH10S replacement. This part maintains identical electrical specifications (SPST, 10 positions, 25mA, 24VDC) and mechanical configuration (slide actuator, surface mount, gull wing termination, 0.050" pitch). The 1-1571983-3 carries active product status with ROHS3 compliance, providing superior long-term supply chain availability compared to the obsolete GDH10S. Inventory availability of 3,300 pieces supports production continuity. This part is supplied in tube packaging and is fully compatible with existing GDH10S PCB layouts and assembly processes.

Secondary Recommendation: 218-10LPST

The CTS Electrocomponents 218-10LPST provides functional substitution with extended operating temperature range (-55°C to 85°C versus -30°C to 85°C). This part is suitable for applications requiring enhanced low-temperature performance. The beryllium copper contact material and epoxy-sealed terminals offer improved environmental resistance. Height above board is 0.104" (2.65mm) compared to 0.091" (2.30mm) for the GDH10S, requiring PCB layout verification for clearance compatibility. ROHS3 compliance and active product status ensure supply continuity. Inventory of 2,100 pieces supports production requirements.

Tertiary Recommendation: 97R10T or 97R10ST

The Grayhill Inc. 97R10T and 97R10ST models provide functional substitution with reduced profile (0.061" height above board). These parts are suitable for space-constrained applications where lower profile is advantageous. Extended operating temperature range (-40°C to 85°C) supports broader environmental applications. Both models carry ROHS3 compliance and active product status. The 97R10T is supplied in tube packaging (748 pieces available), while 97R10ST is supplied in bulk packaging (916 pieces available). PCB layout verification is required due to height variation.

All substitute parts maintain MSL 1 rating, eliminating moisture sensitivity concerns. REACH unaffected status is consistent across all options. Selection should prioritize 1-1571983-3 for direct replacement applications, with secondary options selected based on specific thermal or spatial requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1-1571983-3 be used as a direct replacement for GDH10S without PCB modification?

A: Yes. The 1-1571983-3 maintains identical electrical specifications (SPST, 10 positions, 25mA, 24VDC), actuator type (slide standard), mounting type (surface mount), termination style (gull wing), and pitch (0.050" half). Height above board is identical at 0.091" (2.30mm). No PCB layout modification is required.

Q: What is the primary difference between the GDH10S and its direct equivalent 1-1571983-3?

A: The GDH10S is obsolete with RoHS non-compliance status, while the 1-1571983-3 is active with ROHS3 compliance. All electrical and mechanical parameters are identical. The 1-1571983-3 provides superior supply chain continuity and regulatory compliance for new designs and production support.

Q: Are the Grayhill 97R10T and 97R10ST suitable for direct PCB replacement of GDH10S?

A: The Grayhill parts maintain electrical equivalence (SPST, 10 positions, 25mA, 24VDC) and pitch (0.050" half), but height above board is reduced to 0.061" (1.55mm) compared to 0.091" (2.30mm) for GDH10S. PCB layout verification is required to confirm clearance compatibility with surrounding components and solder mask design. If clearance is adequate, these parts are functionally compatible.

Q: Does the CTS 218-10LPST require PCB modification for GDH10S replacement?

A: The 218-10LPST maintains electrical equivalence and pitch (0.050" half), but height above board is 0.104" (2.65mm) compared to 0.091" (2.30mm) for GDH10S. PCB layout verification is required to confirm clearance compatibility. If clearance is adequate, this part is functionally compatible. The extended operating temperature range (-55°C to 85°C) provides enhanced low-temperature performance.

Q: What is the significance of contact material differences between substitute parts?

A: The GDH10S and most substitutes use copper alloy contacts, while the CTS 218-10LPST uses beryllium copper. Both materials are gold-plated and suitable for 24VDC, 25mA applications. Beryllium copper offers superior spring properties and environmental resistance. Contact material selection does not affect functional compatibility within the specified electrical envelope.

Q: Are all substitute parts RoHS compliant?

A: The 1-1571983-3, 218-10LPST, 97R10T, and 97R10ST are all ROHS3 compliant. The original GDH10S is RoHS non-compliant. For applications requiring RoHS compliance, any of the substitute parts are suitable.

Q: What packaging options are available for substitute parts?

A: The 1-1571983-3 is supplied in tube packaging (3,300 pieces available). The 218-10LPST is supplied in tube packaging (2,100 pieces available). The 97R10T is supplied in tube packaging (748 pieces available). The 97R10ST is supplied in bulk packaging (916 pieces available). Packaging selection should align with production assembly requirements and inventory management practices.

Q: Do all substitute parts maintain the same mechanical life rating as GDH10S?

A: The GDH10S, 1-1571983-3, 97R10T, and 97R10ST all specify 1,000 mechanical cycles. The CTS 218-10LPST does not specify mechanical life in the provided data. For applications requiring documented mechanical life specification, the TE Connectivity or Grayhill options are preferred.

Q: Is the washable feature consistent across all substitute parts?

A: The GDH10S and 218-10LPST are washable. The 97R10ST is washable. The 97R10T is not washable. For applications requiring post-assembly cleaning, verify washable status before selection.

Q: Can substitute parts be mixed in the same assembly?

A: All substitute parts maintain identical electrical specifications (SPST, 10 positions, 25mA, 24VDC) and are functionally interchangeable within the specified application envelope. However, height variations (0.061" to 0.104") may require separate PCB layout verification for each part type. Mixed usage in the same assembly is not recommended without individual clearance confirmation for each part location.