Omron MY4-GS DC24 General Purpose Relay - Equivalent & Substitute Parts

Part Overview

The Omron MY4-GS DC24 is a general purpose relay with 4PDT (4 Form C) contact configuration and 24VDC coil voltage. This socketable relay is designed for applications requiring 3A contact rating at 250VAC or 220VDC maximum switching voltage. The product is currently listed as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

MY4-GS DC24

Omron Automation and SafetyIn Stock: 1152MY4-GS DC24 Datasheet

Current PartRFQ

MY4-GS-R DC24

Omron Automation and SafetyIn Stock: 2120MY4-GS-R DC24 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MY4-GS DC24 is determined by the following critical parameters that must remain constant or be compatible:

• Coil Voltage: 24VDC (must match exactly)
• Contact Form: 4PDT (4 Form C) configuration (must match exactly)
• Mounting Type: Socketable (must match for mechanical compatibility)
• Termination Style: Plug In compatibility (primary requirement)
• Coil Current: 37.7 mA (must match for circuit design compatibility)
• Operating Temperature Range: -55°C ~ 70°C (must encompass or match)
• Contact Material: Silver (Ag) (must match for electrical performance)
• Coil Resistance: 636 Ohms (must match for circuit compatibility)

The MY4-GS-R DC24 qualifies as a direct substitute based on matching all critical parameters. The contact rating increase from 3A to 6A represents an enhancement that maintains backward compatibility for applications designed for the original 3A specification.

Parameter Comparison

Engineering Selection Recommendations

The MY4-GS-R DC24 is the appropriate substitute for the obsolete MY4-GS DC24 based on the following factors:

Product Status: The MY4-GS DC24 is obsolete, while the MY4-GS-R DC24 maintains active product status with current manufacturing and inventory availability (2029 pcs in stock versus 1059 pcs for the obsolete part).

Compliance and Certifications: The MY4-GS-R DC24 meets ROHS3 compliance and is REACH unaffected, representing current regulatory standards. The original MY4-GS DC24 meets RoHS compliance but does not reflect current environmental standards.

Electrical Compatibility: All critical electrical parameters remain identical between the two parts, including coil voltage, contact form, coil current, operating voltage thresholds, and timing characteristics. The increased contact rating (6A versus 3A) provides enhanced capability while maintaining full backward compatibility for applications designed for 3A operation.

Mechanical Compatibility: Both parts feature identical socketable mounting and plug-in termination, ensuring direct mechanical interchangeability in existing relay sockets and circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the MY4-GS-R DC24 be used as a direct replacement for the MY4-GS DC24?

A: Yes. The MY4-GS-R DC24 is electrically and mechanically compatible with the MY4-GS DC24. All critical parameters including coil voltage (24VDC), contact form (4PDT), coil current (37.7 mA), and timing characteristics (20 ms operate/release) are identical. The socketable mounting and plug-in termination ensure direct interchangeability.

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

A: The MY4-GS DC24 has a 3A contact rating, while the MY4-GS-R DC24 has a 6A contact rating. Both maintain the same 250VAC and 220VDC maximum switching voltage. The higher rating in the substitute part provides additional capacity for applications requiring higher current switching while remaining fully compatible with circuits designed for 3A operation.

Q: Are there packaging differences between these parts?

A: The MY4-GS DC24 is supplied with standard packaging, while the MY4-GS-R DC24 is supplied in bulk packaging. This difference does not affect electrical or mechanical performance and relates only to order quantity and delivery format.

Q: Does the MY4-GS-R DC24 support the same termination options?

A: The MY4-GS DC24 supports plug-in termination. The MY4-GS-R DC24 supports both plug-in termination and quick connect 0.110" (2.8mm) termination, providing additional flexibility. Existing designs using standard plug-in termination remain fully compatible.

Q: What are the compliance differences between these relays?

A: The MY4-GS DC24 is RoHS compliant. The MY4-GS-R DC24 is ROHS3 compliant and REACH unaffected, reflecting current environmental and regulatory standards. Both parts meet the compliance requirements for their respective product lifecycles.

Q: Are the operating temperature ranges identical?

A: Yes. Both the MY4-GS DC24 and MY4-GS-R DC24 operate across the identical temperature range of -55°C to 70°C, ensuring thermal compatibility in all specified environments.