Equivalent & Substitute Parts for MKS2PI-2 AC12

Part Overview

The MKS2PI-2 AC12 is a general purpose relay manufactured by Omron Automation and Safety. This DPDT (2 Form C) relay operates on a 12VAC coil and is rated for 10A switching capacity. The device features a socketable mounting configuration with an 8-pin octal termination style, mechanical indicator, and test button. It is classified as an active product with RoHS compliance and is suitable for applications requiring reliable electromechanical switching in industrial control systems.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits component standardization across multiple suppliers or product variants.

Key Parameters

Parameter	Value
Coil Voltage	12VAC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	10 A
Switching Voltage	250VAC, 30VDC - Max
Mounting Type	Socketable
Termination Style	Plug In, 8 Pin (Octal)
Coil Current	193 mA
Operating Temperature Range	-40°C ~ 60°C
Contact Material	Silver Tin Indium (AgSnIn)
Coil Resistance	13.7 Ohms

Substitute Part Grouping Explanation

Substitution of the MKS2PI-2 AC12 is determined by strict equivalence across the following critical parameters:

Coil Voltage: 12VAC (exact match required)
Contact Form: DPDT (2 Form C) configuration
Current Rating: 10A minimum
Switching Voltage Capability: 250VAC, 30VDC maximum
Mounting Configuration: Socketable with 8-pin octal termination
Coil Characteristics: 193 mA coil current, 13.7 Ohms coil resistance
Operating Temperature: -40°C to 60°C range
Contact Material: Silver Tin Indium composition

The MKS2PI AC12 (without the "-2" designation) meets all specified parameters and qualifies as a parametric equivalent. Both parts share identical electrical and mechanical specifications, including coil voltage, contact configuration, current rating, and termination style.

Parameter Comparison

Parameter	MKS2PI-2 AC12	MKS2PI AC12
Manufacturer	Omron Automation and Safety	Omron Automation and Safety
Series	MKS	MKS
Coil Voltage	12VAC	12VAC
Contact Form	DPDT (2 Form C)	DPDT (2 Form C)
Contact Rating	10 A	10 A
Switching Voltage	250VAC, 30VDC - Max	250VAC, 30VDC - Max
Mounting Type	Socketable	Socketable
Termination Style	Plug In, 8 Pin (Octal)	Plug In, 8 Pin (Octal)
Coil Current	193 mA	193 mA
Coil Type	Non Latching	Non Latching
Features	Mechanical Indicator, Test Button	Mechanical Indicator, Test Button
Must Operate Voltage	9.6 VAC	9.6 VAC
Must Release Voltage	3.6 VAC	3.6 VAC
Operate Time	20 ms	20 ms
Release Time	20 ms	20 ms
Operating Temperature	-40°C ~ 60°C	-40°C ~ 60°C
Contact Material	Silver Tin Indium (AgSnIn)	Silver Tin Indium (AgSnIn)
Coil Resistance	13.7 Ohms	13.7 Ohms
Base Product Number	MKS2P	MKS2P
Product Status	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.41.0050	8536.41.0050

Engineering Selection Recommendations

Both the MKS2PI-2 AC12 and MKS2PI AC12 are active products from Omron Automation and Safety with full compliance certifications. The MKS2PI AC12 carries ROHS3 compliance, representing a more recent compliance standard than the RoHS Compliant designation of the MKS2PI-2 AC12. Both parts maintain identical electrical and mechanical specifications, making them functionally interchangeable in applications requiring 12VAC DPDT relays with 10A switching capacity and 8-pin octal socketable mounting.

Selection between these parts should be based on inventory availability, supply chain considerations, and compliance requirements specific to the end application. The ROHS3 designation of the MKS2PI AC12 may be preferred for new designs or applications with stringent environmental compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can the MKS2PI AC12 be used as a direct replacement for the MKS2PI-2 AC12?

A: Yes. Both parts are manufactured by Omron Automation and Safety and share identical electrical and mechanical specifications. They feature the same 12VAC coil voltage, DPDT contact configuration, 10A current rating, and 8-pin octal socketable termination. No circuit modifications are required for substitution.

Q: What are the critical parameters that define substitution eligibility for this relay?

A: Substitution is determined by exact equivalence in coil voltage (12VAC), contact form (DPDT), current rating (10A), switching voltage capability (250VAC/30VDC), mounting type (socketable), termination style (8-pin octal), and operating temperature range (-40°C to 60°C).

Q: Are there differences in compliance certifications between the two parts?

A: The MKS2PI AC12 carries ROHS3 compliance, while the MKS2PI-2 AC12 carries RoHS compliance. Both meet environmental and safety standards. The ROHS3 designation indicates compliance with the more recent Restriction of Hazardous Substances directive revision.

Q: What is the significance of the "-2" designation in the MKS2PI-2 AC12 part number?

A: The "-2" designation does not affect electrical or mechanical performance. Both variants are functionally equivalent and interchangeable in circuit applications.

Q: Are both parts available in the same packaging configuration?

A: Yes. Both the MKS2PI-2 AC12 and MKS2PI AC12 are supplied in bulk packaging with 8-pin octal plug-in termination suitable for socketable relay bases.

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