Grayhill 94HBB10RA Rotary DIP Switch - Equivalent & Substitute Parts

Part Overview

The Grayhill 94HBB10RA is a 10-position rotary DIP switch with BCD encoding, rated for 100mA at 50VDC. This component features a through-hole, right-angle mounting configuration with a rotary shaft actuator and sealed design suitable for industrial control and instrumentation applications.

The 94HBB10RA is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component.

Key Parameters

Parameter	Value
Manufacturer	Grayhill Inc.
Series	94H
Circuit Type	BCD
Number of Positions	10
Current Rating	100mA
Voltage Rating	50VDC
Actuator Type	Rotary with Shaft
Mounting Type	Through Hole, Right Angle
Contact Material	Copper Alloy
Contact Finish	Gold
Height Above Board	0.400" (10.16mm)
Pitch	0.100" (2.54mm)
Operating Temperature Range	-40°C to 85°C
Mechanical Life	10,000 Cycles
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 94HBB10RA is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

BCD circuit encoding (10-position configuration)
100mA current rating
50VDC voltage rating

Mechanical Compatibility:

Rotary shaft actuator with raised actuator level
Through-hole, right-angle mounting orientation
0.100" (2.54mm) pitch spacing
0.400" (10.16mm) height above board
PC pin termination style

Material & Environmental Specifications:

Copper alloy contacts with gold finish
Sealed design
Operating temperature range -40°C to 85°C
ROHS3 compliance
MSL 1 rating

The substitute part 94HBB10RAT maintains identical electrical and mechanical specifications. The primary distinction is product status and packaging configuration.

Parameter Comparison

Parameter	94HBB10RA (Main Part)	94HBB10RAT (Substitute)
Manufacturer	Grayhill Inc.	Grayhill Inc.
Series	94H	94H
Circuit Type	BCD	BCD
Number of Positions	10	10
Current Rating (Amps)	100mA	100mA
Voltage Rating	50VDC	50VDC
Actuator Type	Rotary with Shaft	Rotary with Shaft
Actuator Level	Raised	Raised
Contact Material	Copper Alloy	Copper Alloy
Contact Finish	Gold	Gold
Height Above Board	0.400" (10.16mm)	0.400" (10.16mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Termination Style	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Washable	Yes	Yes
Features	Sealed	Sealed
Operating Temperature	-40°C to 85°C	-40°C to 85°C
Body Material	Plastic	Plastic
Length	0.430" (10.92mm)	0.430" (10.92mm)
Mechanical Life	10,000 Cycles	10,000 Cycles
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active
Packaging	Standard	Tube

Engineering Selection Recommendations

The 94HBB10RAT serves as the direct substitute for the obsolete 94HBB10RA. Both components are manufactured by Grayhill Inc. within the 94H series and maintain identical electrical and mechanical specifications.

Product Status Consideration: The 94HBB10RA is classified as obsolete, while the 94HBB10RAT maintains active product status. For new designs or component replenishment, the 94HBB10RAT is the appropriate selection to ensure long-term supply availability and manufacturer support.

Compliance & Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. MSL 1 rating indicates unlimited shelf life under standard storage conditions.

Packaging Distinction: The 94HBB10RA is supplied in standard packaging, while the 94HBB10RAT is supplied in tube packaging. This distinction affects handling and storage procedures but does not impact functional or electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the 94HBB10RAT directly replace the 94HBB10RA in existing designs?

A: Yes. The 94HBB10RAT is electrically and mechanically identical to the 94HBB10RA. All electrical parameters (BCD encoding, 100mA rating, 50VDC), mechanical dimensions, mounting configuration, and environmental specifications are equivalent. Direct substitution is supported without design modification.

Q: What is the significance of the product status difference between these parts?

A: The 94HBB10RA is obsolete, indicating Grayhill Inc. has discontinued manufacturing. The 94HBB10RAT is active, meaning it remains in current production with ongoing manufacturer support. For applications requiring component replenishment or new designs, the active 94HBB10RAT ensures supply continuity.

Q: Does the packaging difference (standard vs. tube) affect component performance?

A: No. Packaging is a logistics and handling consideration only. Both standard and tube packaging protect the component during storage and transport. The internal component specifications and performance characteristics remain identical.

Q: Are there any compatibility concerns with PCB layout or footprint?

A: No. Both parts share identical dimensions, pitch spacing (0.100"), height above board (0.400"), and through-hole PC pin termination. PCB layouts designed for the 94HBB10RA accommodate the 94HBB10RAT without modification.

Q: What environmental conditions are supported by both parts?

A: Both the 94HBB10RA and 94HBB10RAT operate across -40°C to 85°C. Both are sealed designs suitable for washable applications and maintain MSL 1 rating, indicating unlimited shelf life under standard storage conditions.

Q: Are regulatory certifications identical between the two parts?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across both components for industrial and commercial applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message