Equivalent & Substitute Parts for MK2P-S-DC24

Part Overview

The MK2P-S-DC24 is a general purpose relay manufactured by Omron Automation and Safety, featuring a DPDT (2 Form C) contact configuration with a 24VDC coil and 10A contact rating. This socketable, 8-pin octal relay is designed for general industrial switching applications. The product is currently listed as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring compatible functionality.

Substiute Parts

MK2P-S-DC24

Omron Automation and SafetyIn Stock: 1069MK2P-S-DC24 Datasheet

Current PartRFQ

KRPA-11DG-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 1264KRPA-11DG-24 Datasheet

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KRPA-11DN-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 2382KRPA-11DN-24 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MK2P-S-DC24 are qualified based on the following critical parameters that must match or exceed the original specification:

Mandatory Matching Parameters:

• Coil Voltage: 24VDC
• Contact Form: DPDT (2 Form C)
• Contact Rating: 10A minimum
• Mounting Type: Socketable
• Termination Style: 8 Pin Octal plug-in configuration
• Coil Type: Non Latching

Allowable Variations:

• Switching Voltage: Substitute parts may have equal or higher maximum switching voltage ratings
• Operating Temperature Range: Substitute parts may have equal or wider temperature ranges
• Contact Material: Silver-based materials (Ag or AgCdO) are acceptable alternatives
• Coil Current: Minor variations (±10%) are acceptable within the 24VDC coil specification
• Coil Resistance: Variations within ±10% are acceptable

The KRPA-11DN-24 and KRPA-11DG-24 from TE Connectivity Potter & Brumfield Relays meet all mandatory parameters and are direct functional equivalents for the obsolete MK2P-S-DC24.

Parameter Comparison

Engineering Selection Recommendations

Both KRPA-11DN-24 and KRPA-11DG-24 are active production parts from TE Connectivity Potter & Brumfield Relays and provide direct functional equivalence to the obsolete MK2P-S-DC24. The following factors support their selection:

KRPA-11DN-24: This variant includes a lighted indicator feature and is ROHS3 compliant. It offers an extended operating temperature range (-45°C to 70°C) compared to the original part, providing greater flexibility for diverse environmental applications. Coil current is slightly lower at 51 mA versus 56 mA, reducing power consumption.

KRPA-11DG-24: This variant provides the same core electrical and mechanical specifications as the KRPA-11DN-24 without the lighted indicator feature. It is also ROHS3 compliant with the same extended temperature range and reduced coil current.

Both substitutes have lower must-operate voltage requirements (18 VDC versus 19.2 VDC), ensuring reliable operation across a wider input voltage margin. The contact material change from pure silver to silver cadmium oxide maintains switching performance while offering enhanced contact durability.

Frequently Asked Questions (FAQ)

Q: Can KRPA-11DN-24 and KRPA-11DG-24 be used interchangeably with MK2P-S-DC24?

A: Yes. Both parts share identical electrical specifications for coil voltage, contact form, contact rating, and termination style. The primary difference is that KRPA-11DN-24 includes a lighted indicator, while KRPA-11DG-24 does not. Selection depends on whether the indicator feature is required for your application.

Q: What is the difference between KRPA-11DN-24 and KRPA-11DG-24?

A: The KRPA-11DN-24 includes a lighted indicator feature; the KRPA-11DG-24 does not. All other electrical and mechanical parameters are identical. Choose based on whether visual indication of relay state is needed in your circuit.

Q: Are there any compatibility concerns with the 8-pin octal socket?

A: No. All three parts use the same 8-pin octal plug-in termination style and socketable mounting configuration, ensuring direct mechanical and electrical compatibility with existing relay sockets.

Q: How do the operating temperature ranges compare?

A: The MK2P-S-DC24 operates from -10°C to 40°C. Both KRPA substitutes operate from -45°C to 70°C, providing a significantly wider temperature envelope suitable for more demanding environmental conditions.

Q: Is the change in contact material from silver to silver cadmium oxide acceptable?

A: Yes. Silver cadmium oxide (AgCdO) is a standard contact material for general purpose relays and provides equivalent or superior switching performance compared to pure silver, with enhanced contact durability and resistance to wear.

Q: What is the impact of the lower coil current (51 mA vs. 56 mA)?

A: The lower coil current in the KRPA substitutes reduces power consumption and heat generation in the coil, which is a beneficial characteristic. This does not affect switching performance or reliability.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both KRPA-11DN-24 and KRPA-11DG-24 are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.