Grayhill 34CMDP12B2M6RT Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The Grayhill 34CMDP12B2M6RT is an industrial-grade toggle switch with DPDT (Double Pole Double Throw) configuration, rated for 0.4VA at 20V AC/DC. This through-hole, right-angle mounted switch features epoxy sealed terminals and is designed for applications requiring reliable on-on switching functionality. The part is currently active in production with 947 units in stock. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

34CMDP12B2M6RT

Grayhill Inc.In Stock: 97434CMDP12B2M6RT Datasheet

Current PartRFQ

ET21MD1ABE

C&KIn Stock: 1053ET21MD1ABE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 34CMDP12B2M6RT is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Circuit configuration must be DPDT
• Switch function must be On-On
• 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, Right Angle
• Termination style must be PC Pin
• Actuator type must be Standard Round
• Operating temperature range must encompass -30°C to 85°C

Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) required

The C&K ET21MD1ABE meets all electrical and mechanical equivalence criteria. Variations in actuator length (5.33mm versus 6.10mm), electrical life cycles (30,000 versus 60,000), and ingress protection rating (none versus IP57) do not disqualify substitution, as these represent enhanced or different performance characteristics rather than incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: Grayhill 34CMDP12B2M6RT

The Grayhill 34CMDP12B2M6RT is the specified component and remains the primary choice when availability and lead time permit. This part is ROHS3 compliant, MSL 1 rated, and actively produced with current inventory of 947 units.

Substitute Selection: C&K ET21MD1ABE

The C&K ET21MD1ABE is a direct functional equivalent meeting all critical electrical and mechanical parameters. This substitute is appropriate when:

• Grayhill 34CMDP12B2M6RT availability is constrained
• Supply chain continuity requires alternative sourcing
• Extended lead times on the primary part necessitate substitution

Both parts are ROHS3 compliant, MSL 1 rated, and actively produced. The C&K part offers enhanced electrical life (60,000 cycles versus 30,000 cycles) and IP57 ingress protection, which may provide additional performance margin in certain applications. The 0.77mm difference in actuator length (6.10mm versus 5.33mm) must be verified against mechanical clearance constraints in the target application.

Frequently Asked Questions (FAQ)

Q: Can the C&K ET21MD1ABE be used as a direct replacement for the Grayhill 34CMDP12B2M6RT?

A: Yes, the C&K ET21MD1ABE is electrically and mechanically equivalent. Both parts feature identical DPDT on-on switching, 0.4VA current rating, 20V AC/DC voltage rating, through-hole right-angle mounting, and PC pin termination. Mechanical clearance verification is required due to the 0.77mm difference in actuator length.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in circuit configuration (DPDT), switch function (On-On), current rating (0.4VA AC/DC), voltage ratings (20V AC/DC), mounting type (through-hole right-angle), termination style (PC pin), actuator type (standard round), operating temperature range (-30°C to 85°C), and compliance certifications (ROHS3, MSL 1).

Q: Does the difference in electrical life affect substitution suitability?

A: No. The C&K ET21MD1ABE provides 60,000 electrical life cycles compared to 30,000 cycles for the Grayhill part. This represents enhanced performance rather than incompatibility and does not disqualify substitution.

Q: Is the IP57 ingress protection rating on the C&K part a concern?

A: No. The C&K ET21MD1ABE includes IP57 dust and water protection, which the Grayhill part does not specify. This represents an additional feature that does not create incompatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the Grayhill 34CMDP12B2M6RT and C&K ET21MD1ABE are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What should be verified before implementing the C&K substitute?

A: Verify mechanical clearance for the 0.77mm longer actuator (6.10mm versus 5.33mm) in the target application. Confirm that panel cutout dimensions and surrounding component placement accommodate the substitute part's physical dimensions.