HC1-DC12V-D-F Equivalent & Substitute Parts

Part Overview

The HC1-DC12V-D-F is a general purpose relay manufactured by Panasonic Electric Works, featuring SPDT (1 Form C) contact configuration with 12VDC coil voltage and 10A contact rating. This socketable relay is designed for standard switching applications with 250VAC maximum switching voltage. The product is currently obsolete, making equivalent substitutes necessary for ongoing maintenance and new designs requiring compatible functionality.

Substiute Parts

HC1-DC12V-D-F

Panasonic Electric WorksIn Stock: 1066HC1-DC12V-D-F Datasheet

Current PartRFQ

LY1-D-DC12

Omron Automation and SafetyIn Stock: 768LY1-D-DC12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HC1-DC12V-D-F is determined by the following critical parameters:

• Coil Voltage: Must be 12VDC to ensure direct compatibility with existing control circuits
• Contact Form: Must be SPDT (1 Form C) to maintain switching functionality
• Mounting Type: Must be socketable to fit existing relay sockets
• Termination Style: Must be plug-in to ensure mechanical and electrical compatibility
• Coil Current: Must be 75 mA to match control circuit design specifications
• Coil Resistance: Must be 160 Ohms for proper circuit operation

The LY1-D-DC12 meets all critical substitution criteria. While it offers higher contact rating (15A vs 10A) and extended switching voltage capability (250VAC and 125VDC), these represent functional improvements that do not compromise compatibility. The identical coil specifications, contact form, mounting type, and termination style ensure direct replacement capability.

Parameter Comparison

Engineering Selection Recommendations

The LY1-D-DC12 is a direct functional substitute for the HC1-DC12V-D-F. Selection should be based on the following factors:

Product Status: The HC1-DC12V-D-F is obsolete, while the LY1-D-DC12 is actively manufactured by Omron Automation and Safety, ensuring long-term availability and supply chain continuity.

Compliance and Certifications: The LY1-D-DC12 is ROHS3 compliant and REACH affected, meeting current regulatory requirements for electronic components. This is advantageous for new designs and applications subject to environmental compliance mandates.

Operating Temperature Consideration: The HC1-DC12V-D-F operates across -50°C to 70°C, while the LY1-D-DC12 operates across -25°C to 55°C. Applications requiring operation below -25°C or above 55°C must verify compatibility with the substitute's narrower temperature range.

Enhanced Electrical Ratings: The LY1-D-DC12 provides 15A contact rating versus 10A, and supports both 250VAC and 125VDC switching voltages. These enhanced specifications do not compromise compatibility and provide additional design margin for switching applications.

Frequently Asked Questions (FAQ)

Q: Can the LY1-D-DC12 directly replace the HC1-DC12V-D-F in existing applications?

A: Yes. Both relays share identical coil voltage (12VDC), coil current (75 mA), coil resistance (160 Ohms), contact form (SPDT), mounting type (socketable), and termination style (plug-in). The LY1-D-DC12 will function as a direct replacement in existing relay sockets and control circuits.

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

A: The HC1-DC12V-D-F is rated for 10A maximum contact current, while the LY1-D-DC12 is rated for 15A. The higher rating of the substitute provides additional capacity without affecting compatibility with circuits designed for 10A operation.

Q: Are there temperature limitations when substituting the LY1-D-DC12?

A: The HC1-DC12V-D-F operates from -50°C to 70°C, while the LY1-D-DC12 operates from -25°C to 55°C. Applications requiring operation below -25°C or above 55°C must confirm the substitute meets temperature requirements before implementation.

Q: Does the LY1-D-DC12 meet current regulatory standards?

A: Yes. The LY1-D-DC12 is ROHS3 compliant and REACH affected, meeting current environmental and regulatory requirements for electronic components in most jurisdictions.

Q: What is the switching voltage capability of each relay?

A: The HC1-DC12V-D-F switches up to 250VAC maximum. The LY1-D-DC12 switches up to 250VAC and 125VDC maximum, providing extended voltage range capability.

Q: Are the coil specifications identical between these relays?

A: Yes. Both relays have 12VDC coil voltage, 75 mA coil current, 160 Ohms coil resistance, and non-latching coil type with integrated diode protection.