Grayhill 94HAB08RA Rotary DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 94HAB08RA is an octal rotary DIP switch designed for through-hole, right-angle mounting applications. This component features an 8-position rotary actuator with tool actuation capability, rated for 100mA at 50VDC operation. The 94HAB08RA is classified as obsolete product status, making identification of active equivalent parts essential for ongoing production support and design continuity. Substitute parts maintain identical electrical and mechanical specifications while offering improved availability through active manufacturing status.

Substiute Parts

94HAB08RA

Grayhill Inc.In Stock: 111594HAB08RA Datasheet

Current PartRFQ

94HAB08RAT

Grayhill Inc.In Stock: 158994HAB08RAT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 94HAB08RA is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Circuit configuration (Octal), current rating (100mA), and voltage rating (50VDC) must be identical. These parameters define the switch's load-handling capability and circuit compatibility.

Mechanical Parameters: Actuator type (Rotary for Tool), mounting configuration (Through Hole, Right Angle), and pitch spacing (0.100" / 2.54mm) must match exactly. These parameters ensure physical and functional interchangeability in existing PCB layouts.

Environmental & Compliance Parameters: Operating temperature range (-40°C to 85°C), contact material (Copper Alloy with Gold finish), and RoHS3 compliance status must be maintained. These parameters ensure reliability and regulatory conformance.

Packaging Consideration: The primary difference between the main part and substitute relates to packaging format (bulk versus tube), which does not affect electrical or mechanical performance.

The 94HAB08RAT substitute part maintains 100% equivalence across all specified parameters while offering active product status and improved inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The 94HAB08RAT is the direct substitute for the obsolete 94HAB08RA. Both parts are manufactured by Grayhill Inc. within the 94H series and maintain identical electrical, mechanical, and environmental specifications. The substitute part offers the advantage of active product status, ensuring continued manufacturing support and supply chain availability.

Selection between these parts should be based on packaging requirements and supply chain considerations. The 94HAB08RA (bulk packaging) is suitable for applications where component packaging format is not a constraint. The 94HAB08RAT (tube packaging) is appropriate for standard production environments and automated assembly processes.

Both parts satisfy ROHS3 compliance and REACH regulatory requirements. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions for either part. All electrical parameters, including the 100mA current rating and 50VDC voltage rating, are identical, confirming full functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 94HAB08RAT directly replace the 94HAB08RA in existing designs?

A: Yes. The 94HAB08RAT is electrically and mechanically equivalent to the 94HAB08RA. All critical parameters including circuit configuration, current rating, voltage rating, actuator type, mounting configuration, and pitch spacing are identical. Direct substitution is supported without design modification.

Q: What is the primary difference between these two parts?

A: The primary difference is product status and packaging format. The 94HAB08RA is obsolete and supplied in bulk packaging. The 94HAB08RAT is active product and supplied in tube packaging. All electrical and mechanical specifications are identical.

Q: Are there any compliance or regulatory differences between the parts?

A: No. Both parts maintain identical RoHS3 compliance status, REACH unaffected status, and MSL rating of 1 (Unlimited). Regulatory and environmental compliance is equivalent.

Q: Does packaging format affect component performance?

A: No. Packaging format (bulk versus tube) does not affect electrical performance, mechanical function, or reliability. Packaging selection should be based on production process requirements and inventory management practices.

Q: What is the mechanical life expectancy for these rotary DIP switches?

A: Both parts are rated for 10,000 mechanical cycles. This specification applies to the rotary actuator mechanism and represents the expected operational life under normal use conditions.

Q: Are these parts suitable for high-temperature applications?

A: Both parts are rated for operation across the temperature range of -40°C to 85°C. Applications requiring operation outside this range are not supported by these components.

Q: What is the significance of the sealed feature?

A: The sealed feature indicates that the switch mechanism is protected from environmental contamination, dust, and moisture ingress. This design supports washable assembly processes and enhances reliability in industrial environments.