HC3-DC6V-D-F Equivalent & Substitute Parts

Part Overview

The HC3-DC6V-D-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a 3PDT (3 Form C) contact configuration with a 6VDC coil. This relay is designed for applications requiring simultaneous switching of three independent circuits. The product is currently obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and legacy system support.

Substiute Parts

HC3-DC6V-D-F

Panasonic Electric WorksIn Stock: 1171HC3-DC6V-D-F Datasheet

Current PartRFQ

MKS3P-D-5 DC6

Omron Automation and SafetyIn Stock: 1198MKS3P-D-5 DC6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC3-DC6V-D-F is determined by the following critical parameters:

• Coil Voltage: Must be 6VDC to maintain circuit compatibility
• Contact Form: Must be 3PDT (3 Form C) to preserve switching functionality
• Coil Type: Must be Non Latching to match operational behavior
• Contact Rating (Current): Substitute must meet or exceed 7 A minimum
• Switching Voltage: Substitute must support 250VAC operation
• Operating Temperature Range: Substitute must cover the required temperature envelope
• Moisture Sensitivity Level: Must be MSL 1 or equivalent

The MKS3P-D-5 DC6 meets these substitution criteria while offering enhanced specifications in contact current rating and additional features.

Parameter Comparison

Engineering Selection Recommendations

The MKS3P-D-5 DC6 is a suitable substitute for the obsolete HC3-DC6V-D-F based on the following factors:

• Product Status: The MKS3P-D-5 DC6 is active and currently available, whereas the HC3-DC6V-D-F is obsolete
• Compliance: The MKS3P-D-5 DC6 is RoHS Compliant, meeting modern environmental standards
• Functional Equivalence: Both relays share identical coil voltage (6VDC), contact form (3PDT), coil type (Non Latching), and moisture sensitivity level (MSL 1)
• Enhanced Specifications: The MKS3P-D-5 DC6 provides higher contact current rating (10 A vs. 7 A) and extended switching voltage support (30VDC capability)

The substitute part is suitable for direct replacement in applications where the HC3-DC6V-D-F was originally specified, provided that the slightly longer operate and release times (30 ms and 40 ms respectively, versus 20 ms for both) are acceptable within the system design constraints.

Frequently Asked Questions (FAQ)

Q: Can the MKS3P-D-5 DC6 directly replace the HC3-DC6V-D-F?

A: Yes. Both relays share the same coil voltage (6VDC), contact configuration (3PDT), and coil type (Non Latching). The substitute provides equal or superior electrical performance across all critical parameters.

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

A: The MKS3P-D-5 DC6 offers higher contact current rating (10 A vs. 7 A), extended switching voltage support (30VDC), RoHS compliance, and a mechanical indicator feature. Operating and release times are slightly longer (30 ms and 40 ms vs. 20 ms). The operating temperature range of the substitute is narrower (-40°C ~ 60°C vs. -50°C ~ 70°C).

Q: Are there mounting compatibility considerations?

A: The MKS3P-D-5 DC6 is socketable with an 11-pin octal plug-in termination style, whereas the HC3-DC6V-D-F termination style is not specified. Verify mechanical mounting compatibility with your application before implementation.

Q: Does the higher coil current of the MKS3P-D-5 DC6 affect circuit design?

A: The substitute draws 224 mA versus 150 mA for the original part. Ensure your power supply and control circuitry can accommodate this increased current draw.

Q: Is the MKS3P-D-5 DC6 suitable for low-temperature applications below -40°C?

A: No. The MKS3P-D-5 DC6 operating temperature range is -40°C ~ 60°C. If your application requires operation below -40°C, the original HC3-DC6V-D-F specification of -50°C ~ 70°C may be necessary. Consult alternative relay options for extended low-temperature requirements.