MK3P-S DC12 Equivalent & Substitute Parts

Part Overview

The MK3P-S DC12 is a general purpose relay manufactured by Omron Automation and Safety, featuring a 3PDT (3 Form C) contact configuration with 10A switching capacity at 12VDC coil voltage. This relay is designed for socketable mounting with an 11-pin octal termination style and includes mechanical indicator and test button features.

The MK3P-S DC12 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality, ensure continued availability for maintenance and replacement applications, and support long-term product lifecycle management.

Substiute Parts

MK3P-S DC12

Omron Automation and SafetyIn Stock: 1058MK3P-S DC12 Datasheet

Current PartRFQ

KRPA-14DG-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 959KRPA-14DG-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MK3P-S DC12 are identified based on the following critical parameters that must match or exceed the original specification:

• Coil voltage: 12VDC (exact match required)
• Contact form: 3PDT (3 Form C) (exact match required)
• Contact rating: 10A minimum (exact match required)
• Mounting type: Socketable (exact match required)
• Termination style: Plug In, 11 Pin (Octal) (exact match required)
• Coil type: Non Latching (exact match required)
• Relay type: General Purpose (exact match required)

The KRPA-14DG-12 manufactured by TE Connectivity Potter & Brumfield Relays meets all critical substitution criteria and is classified as an active product with current availability.

Parameter Comparison

Engineering Selection Recommendations

The KRPA-14DG-12 is a direct substitute for the obsolete MK3P-S DC12. Both relays share identical critical specifications: 12VDC coil voltage, 3PDT contact configuration, 10A contact rating, socketable mounting, and 11-pin octal termination.

The KRPA-14DG-12 offers the advantage of active product status, ensuring ongoing availability and supply chain continuity. The substitute part demonstrates superior environmental performance with an extended operating temperature range of -45°C to 70°C compared to the original -10°C to 40°C specification. The KRPA-14DG-12 also features lower coil current consumption at 100 mA versus 126 mA, reducing power requirements in the application circuit.

Both parts maintain RoHS compliance. The KRPA-14DG-12 is ROHS3 compliant and REACH affected, meeting current regulatory standards for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can the KRPA-14DG-12 be used as a direct replacement for the MK3P-S DC12?

A: Yes. Both relays share identical coil voltage (12VDC), contact form (3PDT), contact rating (10A), mounting type (socketable), and termination style (11-pin octal). The KRPA-14DG-12 is mechanically and electrically compatible for direct substitution in applications designed for the MK3P-S DC12.

Q: What are the differences in switching voltage between these relays?

A: The MK3P-S DC12 supports switching voltages up to 250VAC and 250VDC. The KRPA-14DG-12 supports switching voltages up to 240VAC. For applications requiring 250VAC switching capability, the original specification must be verified against the actual circuit requirements.

Q: How do the operating temperature ranges differ?

A: The MK3P-S DC12 operates from -10°C to 40°C. The KRPA-14DG-12 operates from -45°C to 70°C, providing a wider temperature envelope suitable for more demanding environmental conditions.

Q: Are there differences in coil current consumption?

A: The MK3P-S DC12 draws 126 mA at 12VDC. The KRPA-14DG-12 draws 100 mA at 12VDC. The lower coil current of the substitute part reduces power dissipation and may improve overall circuit efficiency.

Q: What is the packaging difference?

A: The MK3P-S DC12 is supplied with standard packaging. The KRPA-14DG-12 is supplied in tray packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Are both relays RoHS compliant?

A: Yes. The MK3P-S DC12 is RoHS compliant. The KRPA-14DG-12 is ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions in electrical and electronic equipment.