MK2PD-I-DC110 Equivalent & Substitute Parts

Part Overview

The MK2PD-I-DC110 is a general purpose relay manufactured by Omron Automation and Safety, featuring a DPDT (2 Form C) contact configuration with a 110VDC coil. This socketable, 8-pin octal relay is designed for applications requiring 10A switching capacity at up to 250VAC or 250VDC. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations.

Substiute Parts

MK2PD-I-DC110

Omron Automation and SafetyIn Stock: 771MK2PD-I-DC110 Datasheet

Current PartRFQ

MKS2P-D DC110

Omron Automation and SafetyIn Stock: 831MKS2P-D DC110 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MKS2P-D DC110 qualifies as a direct substitute based on the following critical parameters:

Matching electrical specifications: Both relays operate at 110VDC coil voltage, feature DPDT contact configuration, and support 10A switching capacity. Both are socketable with 8-pin octal termination, enabling direct mechanical and electrical compatibility in existing relay sockets.

Matching functional characteristics: Both relays include diode and mechanical indicator features, operate at 30 ms, and share identical must-operate and must-release voltage thresholds (88 VDC and 16.5 VDC respectively).

Matching packaging and mounting: Both employ plug-in, 8-pin octal termination with socketable mounting, ensuring physical interchangeability in standard relay bases.

The substitute part operates within the same electrical envelope and maintains functional equivalence for applications designed around the MK2PD-I-DC110 specifications.

Parameter Comparison

Engineering Selection Recommendations

The MKS2P-D DC110 is the recommended substitute for the obsolete MK2PD-I-DC110. The substitute part maintains active product status with Omron, ensuring ongoing availability and supply chain continuity. Both relays share identical coil voltage, contact configuration, current rating, and termination style, providing direct functional replacement.

The MKS2P-D DC110 offers improved operating temperature range (-40°C to 60°C versus -10°C to 40°C) and RoHS compliance certification, making it suitable for applications requiring extended environmental performance or regulatory compliance. The substitute exhibits lower coil current (12.3 mA versus 15.1 mA), reducing power consumption in control circuits.

Minor parameter variations exist: the substitute features a higher coil resistance (8.96 kOhms versus 7.3 kOhms), extended release time (40 ms versus 20 ms), and different contact material composition (AgSnIn versus Ag). These differences remain within acceptable substitution tolerances for general purpose relay applications where the core electrical and mechanical specifications align.

Frequently Asked Questions (FAQ)

Q: Can the MKS2P-D DC110 directly replace the MK2PD-I-DC110 in existing installations?

A: Yes. Both relays feature identical 110VDC coil voltage, DPDT contact configuration, 10A current rating, and 8-pin octal socketable termination. Direct mechanical and electrical compatibility is established for relay socket applications.

Q: What are the key differences between these two relays?

A: The primary differences are product status (obsolete versus active), operating temperature range (-10°C to 40°C versus -40°C to 60°C), coil current (15.1 mA versus 12.3 mA), release time (20 ms versus 40 ms), and contact material composition (Ag versus AgSnIn). The substitute includes RoHS compliance certification.

Q: Are there any switching voltage limitations with the substitute part?

A: The MKS2P-D DC110 specifies a maximum DC switching voltage of 30VDC, compared to 250VDC for the original part. Applications requiring switching at 250VDC must verify compatibility with the substitute's reduced DC voltage rating.

Q: Does the lower coil current of the substitute affect circuit design?

A: The MKS2P-D DC110 draws 12.3 mA versus 15.1 mA for the original relay. This reduction decreases power consumption in the control circuit and may reduce heat generation, but does not affect the relay's switching performance or contact rating.

Q: Is the extended release time of the substitute a concern?

A: The substitute exhibits a 40 ms release time compared to 20 ms for the original. Applications with timing-critical release requirements must evaluate whether this 20 ms difference impacts system performance.

Q: What is the significance of the different contact materials?

A: The original uses pure silver (Ag) contacts, while the substitute uses silver tin indium (AgSnIn). Both materials are suitable for general purpose relay applications. The AgSnIn composition may offer improved contact reliability and longevity in certain switching environments.