Equivalent & Substitute Parts for 34ASP43B4M2RT

Part Overview

The 34ASP43B4M2RT is an SPDT toggle switch manufactured by Grayhill Inc., rated for 0.4VA at 20V AC/DC. This through-hole mounted switch features a momentary-off-momentary (Mom-Off-Mom) function with a standard round actuator and PC pin termination. The part is currently active in production with 830 units in stock.

Finding equivalent substitute parts is necessary to ensure supply chain continuity, manage inventory across multiple suppliers, and maintain design flexibility when the primary part becomes unavailable or when alternative sourcing is required for cost optimization or lead time management.

Substiute Parts

34ASP43B4M2RT

Grayhill Inc.In Stock: 87734ASP43B4M2RT Datasheet

Current PartRFQ

7105P3Y9CBE

C&KIn Stock: 11277105P3Y9CBE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 34ASP43B4M2RT is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Circuit configuration must be SPDT
• Switch function must be Mom-Off-Mom
• Current rating must be 0.4VA (AC/DC)
• Voltage ratings must be 20V AC and 20V DC minimum

Mechanical Equivalence Requirements:

• Mounting type must be Through Hole
• Termination style must be PC Pin
• Operating temperature range must encompass -30°C to 85°C
• Electrical life must be 40,000 cycles or greater

Compliance Requirements:

• RoHS3 compliance required
• Product status must be Active

The substitute part 7105P3Y9CBE from C&K meets all electrical, mechanical, and compliance criteria for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The 7105P3Y9CBE from C&K is electrically and mechanically equivalent to the 34ASP43B4M2RT for applications requiring SPDT Mom-Off-Mom toggle switch functionality at 0.4VA and 20V ratings.

Compliance Status: Both parts are ROHS3 compliant and carry EAR99 export classification. The 7105P3Y9CBE is REACH Affected, whereas the 34ASP43B4M2RT is REACH Unaffected. This distinction must be evaluated based on end-use application and regulatory requirements in the target market.

Design Considerations: The 7105P3Y9CBE features a flat anti-rotation actuator design with epoxy sealed terminals, compared to the standard round actuator of the 34ASP43B4M2RT. The actuator length differs by 2.54mm (13.97mm versus 11.43mm). These mechanical differences require verification against panel cutout specifications and mechanical envelope constraints in the target application.

Inventory Status: The 7105P3Y9CBE has 1032 units in stock compared to 830 units for the 34ASP43B4M2RT, providing additional supply availability.

Frequently Asked Questions (FAQ)

Q: Can the 7105P3Y9CBE directly replace the 34ASP43B4M2RT in all applications?

A: Electrical and functional equivalence is confirmed. However, the different actuator design and length require verification against mechanical constraints. Panel cutout dimensions and actuator engagement depth must be evaluated for the specific application.

Q: What is the significance of the different actuator types?

A: The 34ASP43B4M2RT uses a standard round actuator, while the 7105P3Y9CBE uses a flat anti-rotation design. The anti-rotation feature prevents unintended rotation of the actuator. The 2.54mm length difference affects panel mounting depth and may impact user interface ergonomics.

Q: Does the REACH Affected status of the 7105P3Y9CBE affect substitution eligibility?

A: REACH compliance status is determined by end-use application and target market regulations. The 7105P3Y9CBE is REACH Affected, meaning it may contain substances of concern. This must be evaluated against specific regulatory requirements for the application and geographic region.

Q: Are the electrical life ratings identical?

A: Yes. Both parts are rated for 40,000 electrical cycles, ensuring equivalent operational durability for Mom-Off-Mom switching applications.

Q: What is the significance of epoxy sealed terminals on the 7105P3Y9CBE?

A: Epoxy sealed terminals provide enhanced protection against moisture ingress and environmental contamination at the PC pin connections. Both parts carry MSL 1 (Unlimited) ratings, indicating low moisture sensitivity.

Q: Can these parts be used interchangeably in existing PCB designs?

A: PCB footprint compatibility must be verified. While both parts use PC pin termination and through-hole mounting, the different actuator lengths and designs may require mechanical clearance verification. Panel cutout dimensions and actuator engagement specifications must be confirmed against the original design.