Equivalent & Substitute Parts for 34CMDP31B3M1RT Toggle Switch DPDT

Part Overview

The 34CMDP31B3M1RT is a DPDT toggle switch manufactured by Grayhill Inc., designed for panel mount applications with On-Off-On switching function. This component operates at 0.4VA with voltage ratings of 20V AC/DC and features a standard round actuator with solder lug termination. The part is currently active in production with 987 units in stock inventory.

Substitute parts are identified when equivalent mechanical mounting, circuit configuration, and termination characteristics are present, allowing for component interchangeability in applications where electrical ratings permit higher performance specifications.

Substiute Parts

34CMDP31B3M1RT

Grayhill Inc.In Stock: 102634CMDP31B3M1RT Datasheet

Current PartRFQ

200MDP3T1B1M1QEH

E-SwitchIn Stock: 953200MDP3T1B1M1QEH Datasheet

SimilarRFQ

T203SHZQE

C&KIn Stock: 909T203SHZQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 34CMDP31B3M1RT toggle switch are identified based on strict mechanical and electrical compatibility criteria. The following parameters must match or exceed the main part specifications to establish a valid substitution relationship:

Mandatory Matching Parameters:

• Mounting Type: Panel Mount
• Circuit Configuration: DPDT
• Switch Function: On-Off-On
• Actuator Type: Standard Round
• Actuator Length: 9.40mm
• Termination Style: Solder Lug
• Panel Cutout Dimensions: Circular - 4.95mm Dia
• Bushing Thread: 10-48
• Operating Temperature Range: -30°C to 85°C minimum
• Electrical Life: 30,000 Cycles minimum

Allowable Parameter Variations:

• Current Rating: May exceed 0.4VA specification
• Voltage Rating (AC/DC): May exceed 20V specification
• RoHS Compliance Status: May differ (RoHS3 acceptable for RoHS Compliant applications)
• Packaging: May vary (Bulk acceptable for original packaging)

The identified substitute parts 200MDP3T1B1M1QEH (E-Switch) and T203SHZQE (C&K) satisfy all mandatory matching parameters while providing enhanced electrical ratings, making them suitable for direct replacement in applications where the higher current and voltage capabilities do not create design conflicts.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 34CMDP31B3M1RT (Grayhill Inc.)

The 34CMDP31B3M1RT remains the primary component choice when the specified 0.4VA current rating and 20V voltage ratings are exact design requirements. This part carries RoHS Compliant certification and is actively produced with adequate inventory availability (987 units in stock).

Secondary Selection: 200MDP3T1B1M1QEH (E-Switch)

The 200MDP3T1B1M1QEH provides enhanced electrical performance with 3A current capacity and 120V AC / 28V DC ratings. This substitute is suitable for applications where the original part's electrical ratings are insufficient or where higher performance margins are required. The part maintains ROHS3 Compliant status and is actively produced with 877 units in stock. Selection of this substitute requires confirmation that the higher electrical ratings do not introduce design conflicts or cost considerations.

Tertiary Selection: T203SHZQE (C&K)

The T203SHZQE offers intermediate electrical performance with 2A current capacity and 120V AC / 28V DC ratings. This substitute provides a middle-ground option between the original part and the E-Switch alternative. The part carries ROHS3 Compliant status and is actively produced with 878 units in stock. Note that this part is subject to REACH regulations, requiring verification of compliance requirements for the end application.

All three parts share identical mechanical specifications, panel mount configuration, and operational characteristics, ensuring direct physical and functional interchangeability within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the 200MDP3T1B1M1QEH be used as a direct replacement for the 34CMDP31B3M1RT?

A: Yes, the 200MDP3T1B1M1QEH is mechanically and functionally compatible with the 34CMDP31B3M1RT. Both parts feature identical panel mount configuration, DPDT circuit, On-Off-On switching function, 9.40mm actuator length, 4.95mm circular panel cutout, 10-48 bushing thread, and solder lug termination. The E-Switch part provides higher electrical ratings (3A vs 0.4VA; 120V AC vs 20V AC; 28V DC vs 20V DC), making it suitable for applications requiring enhanced performance specifications.

Q: What is the difference between the E-Switch and C&K substitute parts?

A: The primary difference between 200MDP3T1B1M1QEH (E-Switch) and T203SHZQE (C&K) is the current rating: E-Switch provides 3A capacity while C&K provides 2A capacity. Both offer 120V AC and 28V DC voltage ratings. The C&K part is subject to REACH regulations, while the E-Switch part is REACH Unaffected. All other mechanical and functional parameters are identical between the two substitutes.

Q: Are there packaging differences between the main part and substitute parts?

A: The 34CMDP31B3M1RT is supplied in standard packaging, while both substitute parts (200MDP3T1B1M1QEH and T203SHZQE) are supplied in Bulk packaging. Packaging differences do not affect component functionality or mechanical compatibility. Verify packaging requirements for your procurement and assembly processes.

Q: What compliance certifications apply to each part?

A: The 34CMDP31B3M1RT carries RoHS Compliant certification. The 200MDP3T1B1M1QEH carries ROHS3 Compliant certification and is REACH Unaffected. The T203SHZQE carries ROHS3 Compliant certification and is REACH Affected. All three parts are classified as EAR99 for export control purposes. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: Can I use a substitute part with higher voltage and current ratings in a low-power application?

A: Yes. The substitute parts with higher electrical ratings (200MDP3T1B1M1QEH and T203SHZQE) can be used in applications designed for the lower-rated 34CMDP31B3M1RT. Higher electrical ratings do not create incompatibility in lower-power applications. However, verify that the higher ratings do not introduce unintended design consequences such as increased cost, different switching characteristics, or supply chain considerations.

Q: What is the electrical life specification for all parts?

A: All three parts (34CMDP31B3M1RT, 200MDP3T1B1M1QEH, and T203SHZQE) are rated for 30,000 electrical cycles, indicating identical mechanical durability and switching life performance.

Q: Are the actuator specifications identical across all three parts?

A: Yes. All three parts feature a Standard Round actuator with 9.40mm length, Brass and Chrome Plated material construction, and identical mechanical engagement characteristics. This ensures consistent user interface and operational feel across all substitution options.

Q: What is the operating temperature range for these parts?

A: All three parts operate across the identical temperature range of -30°C to 85°C, ensuring thermal compatibility across all substitution scenarios.