MK2P-I-DC48 Equivalent & Substitute Parts

Part Overview

The MK2P-I-DC48 is a general purpose relay manufactured by Omron Automation and Safety, featuring a DPDT (2 Form C) contact configuration with a 48VDC coil and 10A contact rating. This socketable, 8-pin octal relay is designed for industrial control applications requiring reliable switching of AC and DC loads.

The MK2P-I-DC48 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support legacy equipment maintenance where original components are no longer readily available or have been discontinued by the manufacturer.

Substiute Parts

MK2P-I-DC48

Omron Automation and SafetyIn Stock: 828MK2P-I-DC48 Datasheet

Current PartRFQ

KRPA-11DG-48

TE Connectivity Potter & Brumfield RelaysIn Stock: 875KRPA-11DG-48 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MK2P-I-DC48 is determined by the following critical parameters:

• Coil Voltage: 48VDC (exact match required for direct circuit compatibility)
• Contact Form: DPDT (2 Form C) (functional switching configuration must match)
• Contact Rating: 10A minimum (load-carrying capacity requirement)
• Mounting Type: Socketable (physical installation compatibility)
• Termination Style: Plug In, 8 Pin (Octal) (socket interface compatibility)
• Coil Type: Non Latching (operational behavior requirement)
• Relay Type: General Purpose (application category)

The KRPA-11DG-48 manufactured by TE Connectivity Potter & Brumfield Relays meets all critical substitution criteria. Both relays share identical coil voltage, contact form, current rating, mounting type, termination style, coil type, and relay classification, establishing functional equivalence for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The KRPA-11DG-48 is the qualified substitute for the obsolete MK2P-I-DC48 based on the following engineering criteria:

Functional Equivalence: Both relays share identical coil voltage (48VDC), contact configuration (DPDT), current rating (10A), mounting type (socketable), and termination interface (8-pin octal). These parameters ensure direct functional replacement in existing circuit designs.

Product Status: The MK2P-I-DC48 is obsolete and no longer manufactured. The KRPA-11DG-48 is active and currently produced by TE Connectivity, ensuring long-term supply availability and support.

Compliance & Standards: The KRPA-11DG-48 is ROHS3 compliant, meeting current environmental and regulatory requirements. The MK2P-I-DC48 compliance status is not specified.

Performance Characteristics: The KRPA-11DG-48 demonstrates superior performance in several areas: lower coil current draw (26.7 mA vs. 29.5 mA), wider operating temperature range (-45°C to 70°C vs. -10°C to 40°C), and lower must-operate voltage threshold (36 VDC vs. 38.4 VDC). The AgCdO contact material in the KRPA-11DG-48 provides enhanced arc resistance compared to the silver contacts in the MK2P-I-DC48.

Application Consideration: The KRPA-11DG-48 has a maximum AC switching voltage of 240VAC compared to the MK2P-I-DC48's 250VAC. For DC-only or lower AC voltage applications, this difference is not significant. Applications requiring 250VAC switching should be evaluated against the 240VAC rating.

Frequently Asked Questions (FAQ)

Q: Can the KRPA-11DG-48 directly replace the MK2P-I-DC48 in existing equipment?

A: Yes. Both relays have identical coil voltage (48VDC), contact form (DPDT), current rating (10A), mounting type (socketable), and 8-pin octal termination. Direct socket replacement is possible without circuit modification.

Q: What is the difference in contact material between these relays?

A: The MK2P-I-DC48 uses silver (Ag) contacts, while the KRPA-11DG-48 uses silver cadmium oxide (AgCdO) contacts. AgCdO provides superior arc resistance and contact life in high-switching-frequency applications. Both materials are suitable for general purpose relay applications.

Q: Does the lower AC switching voltage rating of the KRPA-11DG-48 affect compatibility?

A: The KRPA-11DG-48 is rated for 240VAC maximum switching voltage, compared to the MK2P-I-DC48's 250VAC. For applications switching at or below 240VAC, there is no compatibility issue. Applications requiring 250VAC switching capability should be evaluated against the substitute's rating.

Q: Why does the KRPA-11DG-48 have a lower must-operate voltage?

A: The KRPA-11DG-48 must operate at 36VDC compared to the MK2P-I-DC48's 38.4VDC. This lower threshold is an advantage, as it allows the relay to function reliably at lower supply voltages. This does not affect compatibility in standard 48VDC applications.

Q: Is the KRPA-11DG-48 available in the same packaging as the MK2P-I-DC48?

A: Both relays are socketable with 8-pin octal termination, ensuring mechanical compatibility. The KRPA-11DG-48 is supplied in tray packaging, while the MK2P-I-DC48 packaging is not specified. Socket compatibility is maintained regardless of bulk packaging format.

Q: What is the inventory status of these parts?

A: The MK2P-I-DC48 has 761 pieces in stock as new original inventory. The KRPA-11DG-48 has 808 pieces in stock as new original inventory. Both parts are currently available.

Q: Are there any compliance or regulatory differences between these relays?

A: The KRPA-11DG-48 is ROHS3 compliant, meeting current environmental standards. The MK2P-I-DC48 compliance status is not specified. Both relays carry the same ECCN (EAR99) and HTSUS (8536.41.0050) classifications.