Equivalent & Substitute Parts for Grayhill 90HBW02

Part Overview

The Grayhill 90HBW02 is a DIP slide switch with SPST (Single Pole Single Throw) configuration, rated for 25mA at 24VDC. This component is classified as Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this switch architecture.

Substiute Parts

90HBW02P

Grayhill Inc.In Stock: 85390HBW02P Datasheet

Current PartRFQ

90HBW02PT

Grayhill Inc.In Stock: 660690HBW02PT Datasheet

DirectRFQ

219-2LPST

CTS ElectrocomponentsIn Stock: 3149219-2LPST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 90HBW02 is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

• Circuit configuration must be SPST
• Number of positions must be 2
• Mounting type must be Surface Mount
• Termination style must be Gull Wing
• Pitch must be 0.100" (2.54mm)
• Actuator type must be Slide (Standard)

Electrical Compatibility Criteria:

• Current rating must equal or exceed 25mA
• Voltage rating must equal or exceed 24VDC
• Operating temperature range must encompass -40°C to 85°C

Mechanical Compatibility Criteria:

• Height above board and overall dimensions must be compatible with existing PCB layouts
• Contact material and finish must support equivalent switching performance

Based on these parameters, the 90HBW02 has been identified with the following substitute parts.

Parameter Comparison

Engineering Selection Recommendations

90HBW02PT (Grayhill Inc.)

The 90HBW02PT is the direct manufacturer equivalent of the obsolete 90HBW02. This part maintains identical electrical ratings (25mA, 24VDC), mechanical dimensions (0.190" height, 0.270" length), and contact specifications (Copper Alloy, Gold finish). The 90HBW02PT carries Active product status, ensuring ongoing availability and supply chain support. Both parts share the same base product number (90HB series) and are functionally interchangeable. Compliance certifications (ROHS3, REACH Unaffected, EAR99) are equivalent. This substitute is the primary recommendation for direct replacement applications.

219-2LPST (CTS Electrocomponents)

The 219-2LPST is a cross-manufacturer substitute manufactured by CTS Electrocomponents. This part maintains SPST configuration, 2-position architecture, Surface Mount mounting, Gull Wing termination, and 0.100" pitch compatibility. The 219-2LPST provides enhanced electrical performance with 100mA current rating (exceeding the 25mA requirement) and extended operating temperature range (-55°C to 85°C). However, the voltage rating is 20VDC, which is below the 90HBW02 specification of 24VDC. The 219-2LPST carries Active product status and superior moisture sensitivity rating (MSL 1 vs. MSL 3). Mechanical height is reduced (0.160" vs. 0.190"), which may require PCB layout verification. This substitute is applicable only in applications where the 20VDC maximum voltage requirement is acceptable and where the reduced height does not create mechanical interference.

Frequently Asked Questions (FAQ)

Q: Can the 90HBW02PT be used as a direct replacement for the 90HBW02?

A: Yes. The 90HBW02PT is the active equivalent from the same manufacturer (Grayhill Inc.). Electrical ratings, mechanical dimensions, contact materials, and termination styles are identical. The primary difference is product status: 90HBW02 is Obsolete, while 90HBW02PT is Active. No design modifications are required.

Q: What are the limitations of using the 219-2LPST as a substitute?

A: The 219-2LPST has a maximum voltage rating of 20VDC, which is lower than the 90HBW02 specification of 24VDC. Applications requiring 24VDC operation cannot use this substitute. Additionally, the reduced height (0.160" vs. 0.190") must be verified against PCB layout constraints to ensure no mechanical interference with adjacent components or solder mask features.

Q: Are all three parts RoHS compliant?

A: Yes. The 90HBW02, 90HBW02PT, and 219-2LPST are all ROHS3 Compliant and REACH Unaffected. All three parts carry EAR99 export classification.

Q: What is the difference in moisture sensitivity between the substitutes?

A: The 90HBW02 and 90HBW02PT both have MSL 3 rating (168 hours maximum floor life). The 219-2LPST has MSL 1 rating (unlimited floor life), indicating superior moisture resistance and more relaxed storage requirements.

Q: Can the 219-2LPST handle higher current than the 90HBW02?

A: Yes. The 219-2LPST is rated for 100mA, compared to the 90HBW02 rating of 25mA. However, this enhanced current capability does not compensate for the lower voltage rating (20VDC vs. 24VDC). Voltage compatibility must be verified before selection.

Q: Are the mechanical dimensions compatible between all three parts?

A: The 90HBW02 and 90HBW02PT have identical dimensions (0.190" height, 0.270" length). The 219-2LPST has a reduced height (0.160") and slightly shorter length (0.258"). PCB layout verification is required before substituting the 219-2LPST to confirm clearance and solder joint accessibility.

Q: What packaging options are available?

A: The 90HBW02 is supplied in standard packaging (not specified). The 90HBW02PT and 219-2LPST are both supplied in Tube packaging, which is standard for DIP switch distribution.