PRD-3DG0-12 Equivalent & Substitute Parts

Part Overview

The PRD-3DG0-12 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays. This SPST-NO (Single Pole Single Throw - Normally Open) relay is rated for 30A at 12VDC coil voltage with chassis mount configuration and screw terminal termination. The product is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this relay type is required.

Substiute Parts

PRD-3DG0-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 1003PRD-3DG0-12 Datasheet

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MGN1X-DC12

Omron Automation and SafetyIn Stock: 1098MGN1X-DC12 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PRD-3DG0-12 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Contact Form: SPST-NO (DM) (1 Form X)
• Coil Voltage: 12VDC
• Contact Rating (Current): 30 A
• Mounting Type: Chassis Mount
• Termination Style: Screw Terminal
• Coil Type: Non Latching
• Relay Type: General Purpose

Allowable Variation Parameters:

• Operating Temperature Range: Substitute may exceed the original range
• Coil Current: Minor variations acceptable (within 5% tolerance)
• Coil Resistance: Minor variations acceptable (within 5% tolerance)
• Operate/Release Time: Substitute may differ within functional requirements
• Coil Insulation Class: Substitute may be equal or superior
• Switching Voltage Rating: Substitute may exceed the original rating
• Product Status: Active status preferred for obsolete parts

The MGN1X-DC12 from Omron Automation and Safety meets all mandatory matching parameters and qualifies as a direct substitute for the PRD-3DG0-12.

Parameter Comparison

Engineering Selection Recommendations

The MGN1X-DC12 is a direct functional equivalent to the PRD-3DG0-12 for applications requiring a 12VDC, 30A SPST-NO general purpose relay with chassis mount and screw terminal configuration.

Compliance and Status Advantages:

• MGN1X-DC12 holds Active product status, ensuring long-term availability and supply chain continuity
• Both parts maintain RoHS compliance; MGN1X-DC12 carries RoHS Compliant certification
• Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating

Performance Characteristics:

• MGN1X-DC12 demonstrates superior operating temperature range (-40°C ~ 115°C versus -55°C ~ 80°C), providing extended thermal operating envelope
• MGN1X-DC12 features Class F coil insulation versus Class B, offering enhanced thermal stability
• MGN1X-DC12 provides higher switching voltage rating (600VAC, 28VDC maximum versus 277VAC nominal)
• Coil current and resistance values are within acceptable tolerance ranges (167 mA versus 169 mA; 72 Ohms versus 71 Ohms)

Operational Timing:

• MGN1X-DC12 operates faster (30 ms versus 40 ms operate time)
• Release time is slightly longer (30 ms versus 20 ms), which remains within acceptable functional parameters for general purpose relay applications

The MGN1X-DC12 substitution is suitable for direct replacement in existing designs and for new implementations where PRD-3DG0-12 specifications are required.

Frequently Asked Questions (FAQ)

Q: Can the MGN1X-DC12 directly replace the PRD-3DG0-12 in existing applications?

A: Yes. The MGN1X-DC12 meets all mandatory electrical and mechanical parameters: identical SPST-NO contact form, 12VDC coil voltage, 30A current rating, chassis mount configuration, and screw terminal termination. Both parts are non-latching general purpose relays with matching must-operate voltage specifications.

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

A: The MGN1X-DC12 offers superior specifications in three areas: extended operating temperature range (-40°C to 115°C versus -55°C to 80°C), higher coil insulation class (Class F versus Class B), and increased switching voltage rating (600VAC/28VDC maximum versus 277VAC nominal). The MGN1X-DC12 also maintains Active product status, whereas the PRD-3DG0-12 is obsolete.

Q: Are there any timing differences that would affect circuit performance?

A: The MGN1X-DC12 operates faster (30 ms versus 40 ms) and releases slightly slower (30 ms versus 20 ms). These timing variations are within acceptable ranges for general purpose relay applications and do not create functional incompatibility.

Q: Do both relays meet the same compliance standards?

A: Both parts are RoHS compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. The PRD-3DG0-12 is ROHS3 Compliant, while the MGN1X-DC12 is RoHS Compliant. Both certifications satisfy regulatory requirements for their respective product generations.

Q: What is the coil current difference between these relays?

A: The PRD-3DG0-12 draws 169 mA while the MGN1X-DC12 draws 167 mA. This 2 mA difference represents a 1.2% variation and falls within standard engineering tolerance for relay coil specifications.

Q: Are the coil resistance values compatible?

A: Yes. The PRD-3DG0-12 has 71 Ohms coil resistance while the MGN1X-DC12 has 72 Ohms. This 1 Ohm difference represents a 1.4% variation and is within acceptable tolerance for general purpose relay applications.

Q: Why is the MGN1X-DC12 preferred for new designs?

A: The MGN1X-DC12 is preferred because it maintains Active product status, ensuring ongoing availability and supply chain support. It also provides superior thermal operating range, higher coil insulation class, and increased switching voltage rating compared to the obsolete PRD-3DG0-12.