AZ165-2C-24D Equivalent & Substitute Parts

Part Overview

The AZ165-2C-24D is a general purpose relay manufactured by American Zettler, featuring a DPDT (2 Form C) contact configuration with a 24VDC coil. This socketable relay is designed for applications requiring switching of AC and DC loads with a maximum current rating of 7A. The part is currently active in production with 763 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement without circuit redesign. Substitution becomes necessary due to component availability, supply chain considerations, or inventory management requirements.

Substiute Parts

AZ165-2C-24D

American ZettlerIn Stock: 852AZ165-2C-24D Datasheet

Current PartRFQ

MY2 DC24 (S)

Omron Automation and SafetyIn Stock: 930MY2 DC24 (S) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AZ165-2C-24D is determined by the following critical parameters:

Mandatory Matching Parameters:

• Coil voltage: 24VDC
• Contact form: DPDT (2 Form C)
• Mounting type: Socketable
• Termination style: Plug In
• Coil type: Non Latching
• Operating temperature range: -55°C ~ 70°C
• Must operate voltage: 19.2 VDC
• Must release voltage: 2.4 VDC

Allowable Variation Parameters:

• Contact rating (current): Substitute must equal or exceed 7A
• Switching voltage: Substitute must support 250VAC minimum and 30VDC minimum
• Coil current: Minor variations acceptable within normal manufacturing tolerance
• Operate/Release time: Variations acceptable if within application timing requirements
• Contact material: Variations acceptable based on load type

The MY2 DC24 (S) manufactured by Omron Automation and Safety meets all mandatory matching parameters and qualifies as a substitute part.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - Current Rating: The MY2 DC24 (S) has a contact rating of 5A, which is lower than the AZ165-2C-24D at 7A. Substitution is permissible only in applications where the actual load current does not exceed 5A. Applications requiring the full 7A capability must use the AZ165-2C-24D.

Compliance and Certifications: Both parts carry appropriate regulatory approvals. The AZ165-2C-24D holds CE, CUR, TUV, and UL certifications. The MY2 DC24 (S) is RoHS compliant with MSL 1 rating and REACH unaffected status. Both parts are classified as EAR99 for export control purposes.

Switching Voltage Capability: The MY2 DC24 (S) exceeds the DC switching voltage specification of the main part (125VDC vs. 30VDC), providing additional margin for DC load applications. Both parts support 250VAC switching voltage equally.

Timing Characteristics: The MY2 DC24 (S) operates and releases 5 milliseconds faster than the AZ165-2C-24D. This difference is acceptable in general purpose relay applications but must be verified for time-critical circuits.

Contact Material Difference: The AZ165-2C-24D uses Silver Cerium (AgCe) contacts while the MY2 DC24 (S) uses Silver (Ag) contacts. Both materials are suitable for general purpose switching. Contact material selection does not prevent substitution in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the MY2 DC24 (S) directly replace the AZ165-2C-24D in all applications?

A: No. The MY2 DC24 (S) has a maximum contact rating of 5A compared to 7A for the AZ165-2C-24D. Direct replacement is limited to applications where the actual switching current does not exceed 5A. Applications requiring 5A to 7A switching capability must use the AZ165-2C-24D.

Q: Are the socketable mounting interfaces compatible between these two relays?

A: Both relays feature socketable mounting with plug-in termination style. Physical socket compatibility must be verified with the specific relay socket model used in the application, as socket designs vary by manufacturer.

Q: What is the significance of the different coil currents (36.9 mA vs. 37.7 mA)?

A: The coil current difference of 0.8 mA is within normal manufacturing tolerance and does not affect substitution eligibility. Both values are functionally equivalent for circuit design purposes.

Q: Does the faster switching time of the MY2 DC24 (S) create compatibility issues?

A: The 5 millisecond faster operate and release times of the MY2 DC24 (S) are generally acceptable in general purpose relay applications. However, applications with specific timing requirements or synchronization constraints must verify that the faster switching does not affect circuit performance.

Q: Are there any environmental or compliance differences between these parts?

A: Both parts operate across the same temperature range (-55°C to 70°C) and meet RoHS compliance requirements. The MY2 DC24 (S) carries MSL 1 rating, indicating no moisture sensitivity limitations. Both parts are suitable for equivalent environmental conditions.

Q: What is the practical difference between Silver Cerium and Silver contact materials?

A: Both contact materials are suitable for general purpose relay applications. Silver Cerium (AgCe) provides enhanced arc resistance, while pure Silver (Ag) offers excellent conductivity. For standard switching applications, both materials perform equivalently. Contact material selection becomes significant only in high-frequency or high-inrush current applications.