MK2PD-S-DC48 Equivalent & Substitute Parts

Part Overview

The MK2PD-S-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 MK2PD-S-DC48 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system continuity, ensure procurement availability, and support long-term maintenance of equipment utilizing this relay in active installations.

Substiute Parts

MK2PD-S-DC48

Omron Automation and SafetyIn Stock: 986MK2PD-S-DC48 Datasheet

Current PartRFQ

KRPA-11DG-48

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MK2PD-S-DC48 are identified based on strict equivalence of the following critical parameters:

• Coil voltage: 48VDC
• Contact configuration: DPDT (2 Form C)
• Contact current rating: 10A minimum
• Termination style: Plug In, 8 Pin (Octal)
• Mounting type: Socketable
• Coil type: Non Latching

The KRPA-11DG-48 manufactured by TE Connectivity Potter & Brumfield Relays meets all mandatory substitution criteria. Both relays share identical coil voltage, contact form, current rating, and termination specifications, enabling direct functional replacement in socketable relay applications.

Parameter Comparison

Engineering Selection Recommendations

The KRPA-11DG-48 is the direct functional equivalent for the obsolete MK2PD-S-DC48. Both relays are electrically and mechanically compatible for socketable 48VDC DPDT applications.

The KRPA-11DG-48 offers the advantage of active product status, ensuring ongoing availability and manufacturer support. The substitute part operates across a wider temperature range (-45°C ~ 70°C versus -10°C ~ 40°C), providing greater environmental flexibility for extended installations.

The KRPA-11DG-48 is RoHS3 compliant, meeting current regulatory requirements for new equipment designs and procurement. The MK2PD-S-DC48 compliance status is not specified in available documentation.

Selection between these parts should be based on application temperature requirements and regulatory compliance mandates. For applications within the MK2PD-S-DC48 operating range, both parts are functionally interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the KRPA-11DG-48 directly replace the MK2PD-S-DC48 in existing equipment?

A: Yes. Both relays share identical coil voltage (48VDC), contact configuration (DPDT), current rating (10A), and 8-pin octal socketable termination. Direct mechanical and electrical substitution is supported without circuit modification.

Q: What are the differences in switching voltage ratings?

A: The MK2PD-S-DC48 is rated for 250VAC and 250VDC maximum switching voltage. The KRPA-11DG-48 is rated for 240VAC maximum. For applications requiring 250VDC switching capability, the MK2PD-S-DC48 specification is more conservative. For standard AC applications at 240VAC or below, both parts are equivalent.

Q: Why does the KRPA-11DG-48 have lower coil current?

A: The KRPA-11DG-48 requires 26.7 mA coil current compared to 29.5 mA for the MK2PD-S-DC48. This difference reflects different coil design and resistance (1.8 kOhms versus 1.63 kOhms). Both values are within normal manufacturing tolerance for 48VDC relay coils and do not affect functional compatibility.

Q: Is the KRPA-11DG-48 suitable for low-temperature applications?

A: The KRPA-11DG-48 operates from -45°C to 70°C, exceeding the MK2PD-S-DC48 range of -10°C to 40°C. For applications requiring operation below -10°C, the KRPA-11DG-48 provides superior performance.

Q: What is the significance of contact material differences?

A: The MK2PD-S-DC48 uses silver (Ag) contacts, while the KRPA-11DG-48 uses silver cadmium oxide (AgCdO) contacts. Both materials are standard for general purpose relays. Contact material selection does not affect substitution compatibility for standard industrial switching applications.

Q: Are there packaging differences between these relays?

A: The MK2PD-S-DC48 packaging is not specified in available data. The KRPA-11DG-48 is supplied in tray packaging. Both relays use identical 8-pin octal socketable termination, ensuring compatibility with standard relay sockets regardless of bulk packaging format.