MK2PN-S-AC220 Equivalent & Substitute Parts

Part Overview

The MK2PN-S-AC220 is a general purpose relay manufactured by Omron Automation and Safety, featuring a DPDT (2 Form C) contact configuration with a 220VAC coil. This socketable, 8-pin octal relay is designed for general industrial switching applications with a 10A contact rating. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in legacy installations.

Substiute Parts

MK2PN-S-AC220

Omron Automation and SafetyIn Stock: 847MK2PN-S-AC220 Datasheet

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MKS2PIN AC220

Omron Automation and SafetyIn Stock: 710MKS2PIN AC220 Datasheet

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MT228230

TE Connectivity Potter & Brumfield RelaysIn Stock: 1183MT228230 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MK2PN-S-AC220 are identified based on the following critical parameters that must align for functional compatibility:

• Coil voltage: 220VAC or 230VAC (within acceptable operating range)
• Contact form: DPDT (2 Form C) configuration
• Contact rating: 10A minimum
• Termination style: Plug In, 8 Pin (Octal)
• Mounting type: Socketable
• Coil type: Non Latching

Two substitute parts meet these criteria: the MKS2PIN AC220 (Omron, active product) and the MT228230 (TE Connectivity Potter & Brumfield, obsolete product). Both maintain the essential electrical and mechanical characteristics required for direct substitution in applications originally designed for the MK2PN-S-AC220.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring replacement of the obsolete MK2PN-S-AC220, the MKS2PIN AC220 is the preferred substitute. This Omron part maintains identical coil voltage (220VAC), contact configuration (DPDT), current rating (10A), and termination style (8-pin octal socketable). The MKS2PIN AC220 is an active product with RoHS compliance, ensuring long-term availability and regulatory alignment. Operating temperature range extends to -25°C ~ 60°C, providing broader environmental compatibility than the original part.

The MT228230 from TE Connectivity Potter & Brumfield Relays is an alternative substitute with compatible electrical and mechanical characteristics. However, this part operates at 230VAC coil voltage (versus 220VAC) and is also obsolete. The MT228230 offers higher maximum switching voltage (400VAC) and faster switching times (15ms operate, 10ms release), but higher must-release voltage (92VAC) may affect circuit behavior in low-voltage applications.

For new designs or long-term system support, the MKS2PIN AC220 is recommended due to active product status and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the MKS2PIN AC220 be used as a direct replacement for the MK2PN-S-AC220?

A: Yes. Both parts share identical coil voltage (220VAC), contact form (DPDT), current rating (10A), and 8-pin octal socketable termination. The MKS2PIN AC220 is a direct functional equivalent and will operate in circuits designed for the MK2PN-S-AC220.

Q: What is the difference between 220VAC and 230VAC coil specifications?

A: The MT228230 operates at 230VAC nominal coil voltage, while the MK2PN-S-AC220 and MKS2PIN AC220 operate at 220VAC. The MT228230 has a higher must-operate voltage (184VAC) and must-release voltage (92VAC) compared to the other two parts (176VAC and 66VAC respectively). In applications with voltage regulation or tolerance concerns, verify that the 230VAC specification is acceptable for your power supply.

Q: Are there packaging differences between these substitutes?

A: The MK2PN-S-AC220 is packaged individually, while both MKS2PIN AC220 and MT228230 are supplied in bulk packaging. All three parts use identical 8-pin octal socketable termination, ensuring mechanical compatibility in relay socket applications.

Q: What compliance certifications apply to these parts?

A: The MKS2PIN AC220 is RoHS Compliant. The MT228230 is ROHS3 Compliant. The original MK2PN-S-AC220 compliance status is not specified. All three parts are classified as EAR99 for export control purposes.

Q: How do switching voltage ratings affect substitution?

A: The MK2PN-S-AC220 and MKS2PIN AC220 are rated for 250VAC and 250VDC maximum switching voltage. The MT228230 is rated for 400VAC maximum switching voltage. For applications switching voltages below 250VAC, all three parts are suitable. For applications requiring 250VDC switching capability, the MT228230 is not suitable as it does not specify DC switching voltage.

Q: What is the significance of contact material differences?

A: The MK2PN-S-AC220 uses pure Silver (Ag) contacts, while the MKS2PIN AC220 uses Silver Tin Indium (AgSnIn) and the MT228230 uses Silver Nickel (AgNi). These contact materials affect contact resistance, wear characteristics, and suitability for specific load types. For general purpose switching applications, all three materials are acceptable.