Grayhill 34CMDP34B5M2RT Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The Grayhill 34CMDP34B5M2RT is an active-status toggle switch featuring DPDT (Double Pole Double Throw) circuitry with On-Off-On switching function. This panel-mount component is rated for 0.4VA at 20V AC/DC operation and is designed for applications requiring reliable electromechanical switching with sealed terminals. Finding equivalent and substitute parts becomes necessary when addressing supply chain constraints, inventory availability, or application-specific performance requirements while maintaining functional compatibility.

Substiute Parts

34CMDP34B5M2RT

Grayhill Inc.In Stock: 75734CMDP34B5M2RT Datasheet

Current PartRFQ

T203P3TCQE

C&KIn Stock: 1058T203P3TCQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 34CMDP34B5M2RT is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: DPDT
• Switch function: On-Off-On
• Mounting type: Panel Mount
• Termination style: PC Pin
• Panel cutout dimensions: Circular - 6.35mm Dia
• Bushing thread: 1/4-40
• Operating temperature range: -30°C to 85°C
• Electrical life: 30,000 Cycles

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 0.4VA
• Voltage rating (AC): Substitute must equal or exceed 20V
• Voltage rating (DC): Substitute must equal or exceed 20V
• Actuator type and length: May differ
• Actuator material: May differ

The C&K T203P3TCQE qualifies as a substitute part because it maintains all mandatory matching parameters while providing enhanced electrical performance specifications (2A current rating, 120V AC, 28V DC).

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 34CMDP34B5M2RT (Grayhill Inc.)

The Grayhill 34CMDP34B5M2RT maintains active product status with full ROHS3 compliance and REACH unaffected classification. This part is suitable for applications operating within its specified 0.4VA, 20V AC/DC envelope. Current inventory of 732 pieces supports immediate procurement.

Substitute Part: T203P3TCQE (C&K)

The C&K T203P3TCQE is functionally compatible as a substitute, maintaining identical circuit configuration, switching function, mounting interface, and thermal operating range. This part provides enhanced electrical performance with 2A current capacity and 120V AC rating, making it suitable for applications requiring higher power handling. The part carries ROHS3 compliance; however, REACH status is affected. Current inventory of 977 pieces is available. The flat anti-rotation actuator design and increased actuator length (12.45mm versus 10.41mm) represent physical differences that must be evaluated for panel integration and user interface requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can the C&K T203P3TCQE directly replace the Grayhill 34CMDP34B5M2RT in all applications?

A: The C&K T203P3TCQE is mechanically and electrically compatible for panel-mount installation and switching function. However, the actuator design differs (flat anti-rotation versus standard round) and the actuator length is longer (12.45mm versus 10.41mm). Verify that the target application accommodates these physical differences before substitution.

Q: What are the critical parameters that must match for substitution?

A: Circuit configuration (DPDT), switch function (On-Off-On), mounting type (Panel Mount), termination style (PC Pin), panel cutout dimensions (6.35mm circular), bushing thread (1/4-40), operating temperature range (-30°C to 85°C), and electrical life (30,000 cycles) must all match exactly. Current and voltage ratings may be exceeded by the substitute part.

Q: Are both parts RoHS compliant?

A: Both the Grayhill 34CMDP34B5M2RT and C&K T203P3TCQE are ROHS3 compliant. The C&K part has affected REACH status, while the Grayhill part is REACH unaffected. Verify REACH compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the difference in electrical performance between these parts?

A: The Grayhill part is rated for 0.4VA at 20V AC/DC. The C&K substitute is rated for 2A at 120V AC and 28V DC. The substitute provides significantly higher current and voltage capacity, making it suitable for higher-power switching applications while remaining compatible with lower-power applications.

Q: Are the termination styles identical?

A: Yes, both parts use PC Pin termination style, ensuring compatibility with standard PCB mounting and connector interfaces.

Q: What inventory considerations apply?

A: The Grayhill 34CMDP34B5M2RT has 732 pieces in stock. The C&K T203P3TCQE has 977 pieces available. Both are packaged in bulk format.