Omron MY2F-DC12 General Purpose Relay - Equivalent & Substitute Parts

Part Overview

The Omron MY2F-DC12 is a general purpose relay with DPDT (2 Form C) contact configuration rated for 5A at 12VDC coil voltage. This relay features chassis mount termination with solder lug connections and is designed for standard switching applications in industrial control systems. The MY2F-DC12 is classified as obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

MY2F-DC12

Omron Automation and SafetyIn Stock: 1240MY2F-DC12 Datasheet

Current PartRFQ

KHAU-11D12-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 3229KHAU-11D12-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MY2F-DC12 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil voltage: 12VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 5A minimum
• Coil current: 75 mA
• Coil resistance: 160 Ohms
• Coil type: Non Latching

Acceptable Variation Parameters:

• Mounting type: Chassis mount substitutes may be replaced with socketable alternatives when circuit board layout permits
• Termination style: Solder lug may be substituted with plug-in termination when socket compatibility exists
• Operating temperature range: Substitute must meet or exceed the minimum operating range of -55°C to 70°C
• Contact material: Silver-based contact materials (Ag, AgCdO) are functionally equivalent for general purpose switching
• Switching voltage: Substitute must support minimum 250VAC or 125VDC switching capability
• Operate/Release time: Substitute timing must not exceed specified values to maintain system response requirements

The TE Connectivity Potter & Brumfield KHAU-11D12-12 meets all mandatory matching parameters and acceptable variation criteria, qualifying it as a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity KHAU-11D12-12

The KHAU-11D12-12 qualifies as a functional substitute based on matching coil voltage, contact form, current rating, coil current, coil resistance, and coil type. The substitute demonstrates improved performance characteristics with faster operate and release times (13 ms and 6 ms respectively versus 20 ms each).

Application Considerations:

The KHAU-11D12-12 is classified as active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete MY2F-DC12.

Compliance and Regulatory Factors:

The MY2F-DC12 carries RoHS Compliant certification, while the KHAU-11D12-12 is RoHS non-compliant. Applications subject to RoHS regulations (EU Directive 2011/65/EU or equivalent) must evaluate whether this compliance difference affects system certification or market approval requirements.

The MY2F-DC12 is REACH Unaffected, while the KHAU-11D12-12 is REACH Affected. Systems requiring REACH compliance documentation must account for this regulatory difference.

Environmental and Temperature Limitations:

The KHAU-11D12-12 operating temperature range (-45°C to 70°C) is narrower than the MY2F-DC12 (-55°C to 70°C). Applications requiring operation below -45°C must retain the MY2F-DC12 or identify alternative substitutes with extended low-temperature ratings.

Electrical Performance Differences:

The KHAU-11D12-12 must-operate voltage is 9 VDC compared to 9.6 VDC for the MY2F-DC12, indicating slightly more sensitive coil activation. The maximum switching voltage for the KHAU-11D12-12 is 240VAC, compared to 250VAC for the MY2F-DC12. Applications switching at voltages between 240VAC and 250VAC must use the MY2F-DC12.

Mechanical and Installation Differences:

The MY2F-DC12 uses chassis mount with solder lug termination, while the KHAU-11D12-12 uses socketable mounting with plug-in termination. Direct substitution requires either a compatible relay socket or circuit board redesign to accommodate the different mounting and termination style.

Frequently Asked Questions (FAQ)

Q: Can the KHAU-11D12-12 directly replace the MY2F-DC12 without modifications?

A: Direct replacement requires mechanical adaptation. The MY2F-DC12 is chassis mount with solder lug termination, while the KHAU-11D12-12 is socketable with plug-in termination. A compatible relay socket or wiring harness adapter is necessary for installation.

Q: What is the impact of the faster operate and release times in the KHAU-11D12-12?

A: The KHAU-11D12-12 operates in 13 ms and releases in 6 ms, compared to 20 ms for both functions in the MY2F-DC12. This faster response may improve system switching speed but must be evaluated against circuit timing requirements to ensure compatibility with downstream control logic.

Q: Are there temperature limitations when using the KHAU-11D12-12 as a substitute?

A: Yes. The KHAU-11D12-12 operates from -45°C to 70°C, while the MY2F-DC12 operates from -55°C to 70°C. Applications requiring operation below -45°C cannot use the KHAU-11D12-12 and must identify alternative substitutes or retain the original MY2F-DC12.

Q: What are the RoHS and REACH compliance implications of substitution?

A: The MY2F-DC12 is RoHS Compliant and REACH Unaffected. The KHAU-11D12-12 is RoHS non-compliant and REACH Affected. Systems subject to EU RoHS Directive 2011/65/EU or REACH Regulation (EC) 1907/2006 must evaluate whether this compliance difference affects product certification, market approval, or regulatory documentation requirements.

Q: Can the KHAU-11D12-12 switch the same voltage levels as the MY2F-DC12?

A: The KHAU-11D12-12 is rated for 240VAC maximum switching voltage, while the MY2F-DC12 supports 250VAC and 125VDC. Applications requiring switching at 250VAC or 125VDC must use the MY2F-DC12 or identify alternative substitutes with equivalent voltage ratings.

Q: What is the difference in coil activation sensitivity between these relays?

A: The KHAU-11D12-12 must-operate voltage is 9 VDC, compared to 9.6 VDC for the MY2F-DC12. The KHAU-11D12-12 activates at a lower voltage threshold, which may affect circuit behavior in applications with marginal coil supply voltage. Verify that the control circuit voltage remains above 9 VDC under all operating conditions.

Q: Is the KHAU-11D12-12 available for long-term supply?

A: Yes. The KHAU-11D12-12 is classified as active product status, ensuring ongoing manufacturing and availability. The MY2F-DC12 is obsolete, making the KHAU-11D12-12 the preferred choice for new designs and long-term system support.