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Equivalent & Substitute Parts for 34CMDP31B2M6RT
Part Overview
The 34CMDP31B2M6RT is an active-status toggle switch manufactured by Grayhill Inc., configured as a DPDT (Double Pole Double Throw) On-Off-On switch. This through-hole, right-angle mounted component operates at 0.4VA across 20V AC/DC ratings with a standard round brass chrome-plated actuator. The part is specified for applications requiring reliable switching with epoxy-sealed terminals and an electrical life of 30,000 cycles. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when inventory requirements necessitate qualified alternatives meeting identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Circuit Configuration | DPDT |
| Switch Function | On-Off-On |
| Current Rating | 0.4VA (AC/DC) |
| Voltage Rating - AC | 20V |
| Voltage Rating - DC | 20V |
| Mounting Type | Through Hole, Right Angle |
| Termination Style | PC Pin |
| Operating Temperature Range | -30°C to 85°C |
| Electrical Life | 30,000 Cycles |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the 34CMDP31B2M6RT is determined by strict equivalence across the following critical parameters:
Electrical Parameters: Circuit configuration (DPDT), switch function (On-Off-On), current rating (0.4VA AC/DC), and voltage ratings (20V AC and 20V DC) must be identical.
Mechanical Parameters: Mounting type (through hole, right angle), termination style (PC pin), and actuator type (standard round) must match exactly.
Environmental Parameters: Operating temperature range (-30°C to 85°C) and electrical life (30,000 cycles) establish the performance envelope.
Compliance Parameters: RoHS3 compliance and MSL Level 1 (unlimited moisture sensitivity) are required for substitution validity.
The T203MH9ABE from C&K satisfies all these criteria, establishing it as a qualified equivalent substitute despite differences in actuator length (5.33mm versus 9.40mm) and REACH status classification.
Parameter Comparison
| Parameter | 34CMDP31B2M6RT (Grayhill) | T203MH9ABE (C&K) | Match Status |
|---|---|---|---|
| Manufacturer | Grayhill Inc. | C&K | Different |
| Circuit Configuration | DPDT | DPDT | Identical |
| Switch Function | On-Off-On | On-Off-On | Identical |
| Current Rating (Amps) | 0.4VA (AC/DC) | 0.4VA (AC/DC) | Identical |
| Voltage Rating - AC | 20V | 20V | Identical |
| Voltage Rating - DC | 20V | 20V | Identical |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Identical |
| Termination Style | PC Pin | PC Pin | Identical |
| Actuator Type | Standard Round | Standard Round | Identical |
| Actuator Length | 9.40mm | 5.33mm | Different |
| Operating Temperature | -30°C to 85°C | -30°C to 85°C | Identical |
| Electrical Life | 30,000 Cycles | 30,000 Cycles | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| MSL Level | 1 (Unlimited) | 1 (Unlimited) | Identical |
| Features | Epoxy Sealed Terminals | Epoxy Sealed Terminals | Identical |
Engineering Selection Recommendations
Both the 34CMDP31B2M6RT and T203MH9ABE are active-status products with ROHS3 compliance, establishing them as functionally equivalent for electrical circuit applications. Selection between these parts should be based on the following engineering considerations:
Primary Part (34CMDP31B2M6RT): Grayhill Inc. manufacture with 9.40mm actuator length. Current inventory: 795 pieces. REACH Unaffected status. Suitable for applications where the longer actuator length accommodates panel thickness or operational ergonomics.
Substitute Part (T203MH9ABE): C&K manufacture with 5.33mm actuator length. Current inventory: 803 pieces. REACH Affected status. Suitable for applications with space constraints or thinner panel installations where the shorter actuator is mechanically compatible.
Both parts maintain identical electrical performance across the specified 20V AC/DC, 0.4VA operating envelope and support the full -30°C to 85°C temperature range. The actuator length differential is the sole mechanical distinction and must be evaluated against specific panel cutout and installation geometry requirements.
Frequently Asked Questions (FAQ)
Q: Can T203MH9ABE replace 34CMDP31B2M6RT in all applications?
A: Electrical and functional equivalence is confirmed across all rated parameters. However, the 4.07mm actuator length difference (9.40mm versus 5.33mm) requires verification against panel thickness, cutout depth, and operator reach requirements specific to your installation.
Q: Are the voltage and current ratings identical?
A: Yes. Both parts are rated for 0.4VA at 20V AC/DC with identical DPDT On-Off-On switching function and 30,000-cycle electrical life.
Q: What is the significance of the different REACH status classifications?
A: The 34CMDP31B2M6RT is REACH Unaffected, while T203MH9ABE is REACH Affected. This distinction reflects regulatory substance classification but does not affect electrical performance or functional compatibility. Compliance requirements depend on your end-use application and regional regulations.
Q: Are both parts RoHS3 compliant?
A: Yes. Both 34CMDP31B2M6RT and T203MH9ABE meet ROHS3 compliance standards with MSL Level 1 (unlimited moisture sensitivity).
Q: What is the operating temperature range for both parts?
A: Both parts operate across -30°C to 85°C, providing identical thermal performance envelope.
Q: Are the termination styles compatible with standard PCB through-hole mounting?
A: Yes. Both parts feature PC Pin termination style suitable for standard through-hole PCB assembly processes.
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