Equivalent & Substitute Parts for 34CMDP33B3M1RT

Part Overview

The 34CMDP33B3M1RT is a toggle switch manufactured by Grayhill Inc., classified as a DPDT (Double Pole Double Throw) panel mount switch with On-Off-On functionality. This component operates at 0.4VA with voltage ratings of 20V AC/DC and features a non-illuminated standard round actuator with solder lug termination. The part is currently active in production with 810 units in stock.

Equivalent and substitute parts are identified when applications require higher current or voltage ratings, alternative sourcing for supply chain continuity, or when the original part becomes unavailable. The substitute parts listed maintain compatibility through identical mechanical interfaces, circuit topology, and environmental specifications while offering enhanced electrical performance characteristics.

Substiute Parts

34CMDP33B3M1RT

Grayhill Inc.In Stock: 91434CMDP33B3M1RT 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 34CMDP33B3M1RT are qualified based on the following substitution criteria:

Mandatory Compatibility Parameters:

• Circuit configuration must be DPDT
• Switch function must be On-Off-On
• Mounting type must be Panel Mount
• Panel cutout dimensions must be Circular - 4.95mm Dia
• Bushing thread must be 10-48
• Termination style must be Solder Lug
• Operating temperature range must encompass -30°C ~ 85°C
• Electrical life must be 30,000 cycles or greater

Electrical Performance Parameters:

• Current rating must be equal to or greater than 0.4VA
• Voltage rating (AC) must be equal to or greater than 20V
• Voltage rating (DC) must be equal to or greater than 20V

Compliance Parameters:

• RoHS compliance status must be maintained
• REACH status must be documented
• ECCN classification must be EAR99

The two substitute parts identified—200MDP3T1B1M1QEH (E-Switch) and T203SHZQE (C&K)—satisfy all mandatory compatibility parameters and exceed the electrical performance requirements of the original part, making them suitable for direct substitution in applications where the original part is unavailable or where enhanced electrical ratings are beneficial.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 34CMDP33B3M1RT (Grayhill Inc.)

The original Grayhill part maintains RoHS Compliant status and REACH Unaffected classification. This part is currently active in production with adequate inventory (810 units in stock). Selection of the original part is recommended when supply is available and the specified electrical ratings (0.4VA, 20V AC/DC) are sufficient for the application.

First Substitute: 200MDP3T1B1M1QEH (E-Switch)

The E-Switch 200MDP3T1B1M1QEH provides enhanced electrical performance with 3A current rating and 120V AC / 28V DC voltage ratings. This part maintains ROHS3 Compliant status and REACH Unaffected classification. The increased electrical ratings provide margin for applications requiring higher power handling. Inventory availability is 877 units. This substitute is suitable when the original part is unavailable or when application requirements exceed the original part's electrical specifications.

Second Substitute: T203SHZQE (C&K)

The C&K T203SHZQE offers 2A current rating and 120V AC / 28V DC voltage ratings with ROHS3 Compliant status. This part carries REACH Affected classification, indicating regulatory documentation requirements. Inventory availability is 878 units. This substitute is suitable for applications requiring higher electrical performance than the original part, with the understanding that REACH compliance documentation must be verified for the specific application jurisdiction.

Actuator Length Consideration:

The substitute parts feature a 9.40mm actuator length compared to the original part's 7.37mm length. This dimensional difference must be evaluated for panel clearance and user interface requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can the 200MDP3T1B1M1QEH be used as a direct replacement for the 34CMDP33B3M1RT?

A: Yes, the 200MDP3T1B1M1QEH qualifies as a direct substitute. Both parts share identical DPDT circuit configuration, On-Off-On switch function, panel mount installation method, 4.95mm circular panel cutout, 10-48 bushing thread, and solder lug termination. The substitute part exceeds the electrical performance requirements with 3A current rating and 120V AC / 28V DC voltage ratings. The 9.40mm actuator length is 2.03mm longer than the original part and must be verified for panel clearance compatibility.

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

A: The primary electrical difference is current rating: the E-Switch 200MDP3T1B1M1QEH is rated for 3A while the C&K T203SHZQE is rated for 2A. Both provide 120V AC / 28V DC voltage ratings. The C&K part carries REACH Affected status, requiring regulatory compliance verification, while the E-Switch part maintains REACH Unaffected status. Both parts feature identical mechanical interfaces and operating specifications.

Q: Are the substitute parts compatible with the original part's panel cutout?

A: Yes. All three parts—the original 34CMDP33B3M1RT and both substitutes (200MDP3T1B1M1QEH and T203SHZQE)—feature identical circular panel cutout dimensions of 4.95mm diameter and 10-48 bushing thread specifications. Panel cutout modification is not required for mechanical installation.

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

A: The original Grayhill part has a 7.37mm actuator length, while both E-Switch and C&K substitutes have 9.40mm actuator lengths. This 2.03mm difference affects the physical protrusion of the toggle lever from the panel surface. Applications with limited clearance above the panel or specific user interface requirements must verify that the longer actuator length is acceptable.

Q: Do the substitute parts maintain the same electrical life specification?

A: Yes. All three parts—34CMDP33B3M1RT, 200MDP3T1B1M1QEH, and T203SHZQE—are rated for 30,000 electrical cycles, ensuring equivalent durability and operational lifespan.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant status?

A: The original Grayhill part carries RoHS Compliant status, indicating compliance with the original Restriction of Hazardous Substances directive. Both substitute parts carry ROHS3 Compliant status, indicating compliance with the updated RoHS 3 directive (2011/65/EU as amended). ROHS3 Compliant status encompasses and exceeds RoHS Compliant requirements, making the substitutes suitable for applications requiring either standard.

Q: What does REACH Affected status mean for the C&K part?

A: REACH Affected status indicates that the C&K T203SHZQE part contains substances subject to the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulation. This requires verification of compliance documentation and may impose additional regulatory requirements depending on the application jurisdiction and end-use classification. The E-Switch and original Grayhill parts maintain REACH Unaffected status, indicating no REACH-regulated substances.

Q: Can these switches handle higher voltage applications than specified?

A: No. The voltage ratings specified for each part represent the maximum operating voltage. The original part is rated for 20V AC/DC maximum. The substitute parts are rated for 120V AC / 28V DC maximum. Operating above these ratings may cause component failure or safety hazards. Application voltage requirements must not exceed the specified ratings of the selected part.

Q: Are all three parts suitable for the same operating temperature range?

A: Yes. All three parts—34CMDP33B3M1RT, 200MDP3T1B1M1QEH, and T203SHZQE—are rated for -30°C to 85°C operating temperature range. Environmental temperature requirements within this range are satisfied by any of the three parts.