Grayhill 90MB07S DIP Switch SPST Equivalent & Substitute Parts

Part Overview

The Grayhill 90MB07S is a 7-position DIP switch with SPST (Single Pole Single Throw) circuit configuration, rated for 25mA at 24VDC. This component features a slide actuator with standard (flush, recessed) positioning and is designed for through-hole mounting on printed circuit boards.

The 90MB07S carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance and repairs.

Substiute Parts

90MB07S

Grayhill Inc.In Stock: 92290MB07S Datasheet

Current PartRFQ

90B07ST

Grayhill Inc.In Stock: 99990B07ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 90MB07S is determined by strict equivalence across the following critical parameters:

Mandatory Match Parameters:

• Circuit type: SPST
• Position count: 7
• Actuator type: Slide (Standard)
• Mounting method: Through Hole
• Pitch spacing: 0.100" (2.54mm)
• Termination style: PC Pin
• Height above board: 0.195" (4.95mm)

Electrical Performance Parameters (Substitute Must Meet or Exceed):

• Current rating: 25mA minimum
• Voltage rating: 24VDC minimum

The 90B07ST from Grayhill Inc. satisfies all mandatory match parameters and electrical performance requirements, qualifying it as a direct substitute for the obsolete 90MB07S.

Parameter Comparison

Engineering Selection Recommendations

The 90B07ST is the qualified substitute for the obsolete 90MB07S based on the following engineering criteria:

Functional Equivalence: All electrical and mechanical parameters match exactly. The 90B07ST maintains identical circuit configuration, position count, current and voltage ratings, actuator type, mounting method, and physical dimensions. PCB footprint compatibility is assured.

Product Status Advantage: The 90B07ST carries Active product status, ensuring continued availability and manufacturing support. The 90MB07S is Obsolete and subject to supply discontinuation.

Compliance Improvement: The 90B07ST achieves ROHS3 compliance, whereas the 90MB07S is RoHS non-compliant. For new designs or systems requiring regulatory compliance, the 90B07ST is the appropriate selection.

Handling and Storage: The 90B07ST features MSL 1 (Unlimited moisture sensitivity level), compared to MSL 3 (168 Hours) for the 90MB07S. This provides superior protection during storage and handling without additional environmental controls.

Supply Chain Reliability: Current inventory of 90B07ST (969 Pcs) exceeds that of the obsolete 90MB07S (835 Pcs), supporting sustained availability for production and maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can the 90B07ST be used as a direct replacement for the 90MB07S in existing designs?

A: Yes. The 90B07ST is electrically and mechanically equivalent to the 90MB07S. All critical parameters—circuit type, position count, current and voltage ratings, actuator type, mounting method, pitch, height, and termination style—are identical. PCB footprint and form-fit compatibility are assured. No design modifications are required.

Q: What is the difference between the 90MB07S and 90B07ST?

A: The primary differences are product status and compliance certifications. The 90MB07S is Obsolete; the 90B07ST is Active production. The 90B07ST is ROHS3 compliant and features improved moisture sensitivity level (MSL 1 vs. MSL 3). Functionally and mechanically, both parts are identical.

Q: Why should I transition from the 90MB07S to the 90B07ST?

A: The 90MB07S is Obsolete and subject to supply discontinuation. Transitioning to the 90B07ST ensures long-term availability, regulatory compliance (ROHS3), and improved handling characteristics (MSL 1). No design changes are necessary.

Q: Are there packaging differences between the 90MB07S and 90B07ST?

A: Yes. The 90MB07S is supplied with standard packaging (indicated as "-" in the input data). The 90B07ST is supplied in Tube packaging. Both packaging formats are suitable for through-hole assembly. Verify packaging requirements for your specific procurement and assembly processes.

Q: What is the pitch specification, and why does it matter?

A: Both parts feature 0.100" (2.54mm) pitch spacing. This is the center-to-center distance between adjacent pins. Pitch must match exactly to ensure correct alignment with PCB footprints. The identical pitch of both parts confirms footprint compatibility.

Q: Are the operating temperature ranges the same?

A: Yes. Both the 90MB07S and 90B07ST operate across -40°C to 85°C. Temperature performance is identical.

Q: What does MSL (Moisture Sensitivity Level) mean, and why is the 90B07ST better?

A: MSL indicates the component's sensitivity to moisture during storage and handling. MSL 1 (90B07ST) requires no special moisture control and has unlimited shelf life. MSL 3 (90MB07S) requires controlled storage at 23°C/50% RH for a maximum of 168 hours after opening. The 90B07ST eliminates these handling restrictions.

Q: Can I use the 90B07ST in applications requiring RoHS compliance?

A: Yes. The 90B07ST is ROHS3 compliant. The 90MB07S is RoHS non-compliant. If your application or regulatory environment requires RoHS compliance, the 90B07ST is the appropriate selection.

Q: Are the mechanical and electrical life ratings the same?

A: Yes. Both parts are rated for 2,000 mechanical cycles and 2,000 electrical cycles. Operational durability is equivalent.

Q: What is the current and voltage rating, and can I use these parts in higher-rated applications?

A: Both parts are rated for 25mA at 24VDC. These are maximum ratings; do not exceed them. If your application requires higher current or voltage capacity, alternative switch designs must be evaluated.