Grayhill 90B06S DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 90B06S is a 6-position slide actuator DIP switch with SPST circuit configuration, rated for 25mA at 24VDC. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where the original part is no longer in active production.

Key Parameters

Parameter	Value
Circuit Configuration	SPST (Single Pole Single Throw)
Number of Positions	6
Current Rating	25mA
Voltage Rating	24VDC
Actuator Type	Slide (Standard)
Mounting Type	Through Hole
Pitch	0.100" (2.54mm)
Contact Material	Copper Alloy
Contact Finish	Gold
Operating Temperature Range	-40°C to 85°C

Substitute Part Grouping Explanation

Substitute parts for the 90B06S are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Circuit type: SPST
Number of positions: 6
Actuator type: Slide (Standard)
Mounting type: Through Hole
Pitch: 0.100" (2.54mm)
Operating temperature range: -40°C to 85°C
Contact finish: Gold

Secondary Compatibility Criteria:

Current rating: Equal to or greater than 25mA
Voltage rating: Equal to or greater than 24VDC
Termination style: PC Pin
Washable capability: Yes

The 90B06S has two identified substitutes: the Grayhill 90B06ST and the CTS Electrocomponents 209-6LPST. Both parts satisfy the primary compatibility criteria. Differences in secondary parameters are noted in the comparison table below.

Parameter Comparison

Parameter	90B06S (Main Part)	90B06ST (Substitute)	209-6LPST (Substitute)
Manufacturer	Grayhill Inc.	Grayhill Inc.	CTS Electrocomponents
Product Status	Obsolete	Active	Active
Circuit Configuration	SPST	SPST	SPST
Number of Positions	6	6	6
Current Rating	25mA	25mA	100mA
Voltage Rating	24VDC	24VDC	20VDC
Actuator Type	Slide (Standard)	Slide (Standard)	Slide (Standard)
Actuator Level	Flush, Recessed	Flush, Recessed	Flush, Recessed
Contact Material	Copper Alloy	Copper Alloy	Beryllium Copper
Contact Finish	Gold	Gold	Gold
Height Above Board	0.195" (4.95mm)	0.195" (4.95mm)	0.180" (4.57mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Length	0.670" (17.02mm)	0.670" (17.02mm)	0.658" (16.71mm)
Washable	Yes	Yes	Yes
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Electrical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles
Mechanical Life	2,000 Cycles	2,000 Cycles	Not specified
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Tube	Tube

Engineering Selection Recommendations

90B06ST (Grayhill Inc.): The 90B06ST is the primary recommended substitute for the obsolete 90B06S. Both parts are manufactured by Grayhill Inc. and share identical electrical ratings (25mA at 24VDC), physical dimensions, and mechanical specifications. The 90B06ST is currently in active production status and is ROHS3 compliant, addressing regulatory requirements that the original 90B06S does not meet. This part provides direct functional equivalence with improved compliance posture.

209-6LPST (CTS Electrocomponents): The 209-6LPST is an alternative substitute when Grayhill 90B06ST availability is constrained. This part maintains compatibility with the primary circuit and mechanical parameters. The 209-6LPST provides higher current capacity (100mA versus 25mA) and is ROHS3 compliant. The voltage rating is 20VDC, which is lower than the 90B06S specification of 24VDC. The 209-6LPST is suitable for applications where the circuit operates at or below 20VDC. Physical height above board is 0.015" (0.38mm) lower than the 90B06S, which may require verification in space-constrained PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the 90B06ST directly replace the 90B06S without circuit modification?

A: Yes. The 90B06ST is electrically and mechanically equivalent to the 90B06S. Both parts have identical SPST circuit configuration, 6-position count, 25mA current rating, 24VDC voltage rating, and 0.100" pitch. Physical dimensions and mounting characteristics are identical. No circuit modification is required.

Q: What is the key difference between the 90B06ST and 209-6LPST substitutes?

A: The primary difference is voltage rating. The 90B06ST maintains the original 24VDC specification, while the 209-6LPST is rated for 20VDC. The 209-6LPST provides higher current capacity (100mA) but lower voltage capability. Selection depends on circuit voltage requirements. For circuits operating above 20VDC, the 90B06ST is required.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 90B06ST and 209-6LPST are ROHS3 compliant. The original 90B06S is RoHS non-compliant. If RoHS compliance is a design requirement, either substitute part satisfies this requirement.

Q: Does the 209-6LPST fit the same PCB footprint as the 90B06S?

A: The 209-6LPST has compatible through-hole mounting and 0.100" pitch, matching the 90B06S footprint. However, the height above board differs by 0.015" (0.38mm). The 209-6LPST is slightly shorter. Verify clearance in applications with height constraints above the PCB.

Q: What is the packaging difference between these parts?

A: The 90B06S is supplied in bulk packaging. Both substitute parts (90B06ST and 209-6LPST) are supplied in tube packaging. Tube packaging provides better component protection during storage and handling.

Q: Can the 209-6LPST be used in a 24VDC circuit?

A: No. The 209-6LPST is rated for 20VDC maximum. Operating this part at 24VDC exceeds its voltage specification and is not permitted. Use the 90B06ST for 24VDC applications.

Q: Are the mechanical life specifications identical across all three parts?

A: The 90B06S and 90B06ST both specify 2,000 mechanical cycles. The 209-6LPST does not provide a mechanical life specification in the available data. For applications requiring documented mechanical life rating, the 90B06ST is the preferred substitute.

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