Equivalent & Substitute Parts for Grayhill 78RB10S DIP Switch

Part Overview

The Grayhill 78RB10S is a 10-position slide actuator DIP switch designed for through-hole mounting applications requiring SPST (Single Pole Single Throw) switching at 150mA and 30VDC. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure long-term component availability for production and field service applications.

Substiute Parts

78RB10S

Grayhill Inc.In Stock: 115378RB10S Datasheet

Current PartRFQ

78RB10ST

Grayhill Inc.In Stock: 129578RB10ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 78RB10S is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for circuit configuration, position count, current and voltage ratings, actuator type, mounting method, pitch, and physical dimensions. These parameters define the functional and physical compatibility required for direct replacement in existing PCB designs and assemblies.

The 78RB10ST qualifies as a direct substitute based on complete parameter alignment across all critical electrical and mechanical characteristics. The substitution is valid regardless of packaging format differences, as packaging does not affect component performance or PCB integration.

Parameter Comparison

Engineering Selection Recommendations

The 78RB10ST is the direct active equivalent for the obsolete 78RB10S. All electrical performance parameters, mechanical dimensions, and functional characteristics are identical. The 78RB10ST maintains the same base product number (78RB series) and is manufactured by Grayhill Inc., ensuring design continuity.

The 78RB10ST provides an additional compliance advantage: it carries ROHS3 certification, whereas the 78RB10S is RoHS non-compliant. For new designs or production runs subject to RoHS requirements, the 78RB10ST satisfies regulatory mandates while maintaining complete functional equivalence.

Both parts share identical REACH and ECCN classifications, confirming regulatory parity across environmental and export control frameworks. The substitution is valid for all applications where the 78RB10S was originally specified.

Frequently Asked Questions (FAQ)

Q: Can the 78RB10ST be used as a direct replacement for the 78RB10S in existing designs?

A: Yes. The 78RB10ST is electrically and mechanically identical to the 78RB10S across all specified parameters. No design modifications are required for substitution.

Q: What is the difference between the 78RB10S and 78RB10ST?

A: The primary differences are product status and RoHS compliance. The 78RB10S is obsolete and RoHS non-compliant. The 78RB10ST is active and ROHS3 compliant. All functional and dimensional specifications are identical.

Q: Does packaging format affect compatibility?

A: No. The 78RB10S is supplied in standard packaging, while the 78RB10ST is supplied in tube packaging. Packaging format does not affect component performance, electrical characteristics, or PCB integration.

Q: Are there any temperature or current rating differences?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and carry the same current rating (150mA at 30VDC).

Q: Is the 78RB10ST suitable for applications requiring RoHS compliance?

A: Yes. The 78RB10ST carries ROHS3 certification and is suitable for all applications subject to RoHS requirements.

Q: What is the mechanical life expectancy?

A: Both the 78RB10S and 78RB10ST are rated for 2,000 mechanical cycles and 2,000 electrical cycles.

Q: Are moisture sensitivity considerations the same?

A: Yes. Both parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.