HC4-HPL-DC12V Equivalent & Substitute Parts

Part Overview

The HC4-HPL-DC12V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 12VDC coil. This through-hole mounted relay is designed for applications requiring simultaneous switching of four independent circuits at 5A contact rating and 250VAC maximum switching voltage. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

HC4-HPL-DC12V

Panasonic Electric WorksIn Stock: 1088HC4-HPL-DC12V Datasheet

Current PartRFQ

PT571012

TE Connectivity Potter & Brumfield RelaysIn Stock: 1676PT571012 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HC4-HPL-DC12V are identified based on the following critical parameters that must remain consistent or exceed the original specification:

• Coil Voltage: 12VDC (exact match required for direct circuit compatibility)
• Contact Form: 4PDT (4 Form C) configuration (exact match required for switching topology)
• Mounting Type: Through Hole (exact match required for PCB layout compatibility)
• Termination Style: PC Pin (exact match required for board connection)
• Contact Rating (Current): Minimum 5A (equal or greater acceptable)
• Switching Voltage: Minimum 250VAC (equal or greater acceptable)
• Coil Type: Non Latching (exact match required for operational behavior)

The PT571012 relay from TE Connectivity Potter & Brumfield meets all critical substitution criteria, with enhanced specifications in contact current rating (6A vs. 5A) and improved switching voltage tolerance (240VAC vs. 250VAC maximum).

Parameter Comparison

Engineering Selection Recommendations

The PT571012 is a direct functional substitute for the HC4-HPL-DC12V based on matching critical electrical and mechanical parameters. The substitute part offers the following advantages:

• Active Product Status: The PT571012 is currently in active production, ensuring long-term availability and supply chain stability compared to the obsolete HC4-HPL-DC12V.
• Regulatory Compliance: The PT571012 is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for new designs and manufacturing.
• Enhanced Performance Characteristics: The substitute provides faster switching times (15ms operate, 10ms release vs. 20ms each) and lower coil current draw (62.5mA vs. 75mA), resulting in reduced power consumption and improved circuit responsiveness.
• Equivalent Electrical Ratings: Contact current rating of 6A exceeds the original 5A specification, and switching voltage tolerance of 240VAC is within the original 250VAC maximum specification.

Selection of the PT571012 is appropriate for direct replacement in existing applications and for new designs requiring 4PDT 12VDC relay functionality with through-hole PC pin termination.

Frequently Asked Questions (FAQ)

Q: Can the PT571012 be used as a direct drop-in replacement for the HC4-HPL-DC12V?

A: Yes. Both relays share identical coil voltage (12VDC), contact form (4PDT), mounting type (through hole), and termination style (PC pin). The PT571012 meets or exceeds all critical electrical specifications of the HC4-HPL-DC12V.

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

A: The PT571012 provides higher contact current rating (6A vs. 5A), faster switching response times (15ms/10ms vs. 20ms/20ms), lower coil current consumption (62.5mA vs. 75mA), and active product status with RoHS3 and REACH compliance. The HC4-HPL-DC12V has a wider lower operating temperature limit (-50°C vs. -40°C).

Q: Are there any circuit design considerations when substituting the PT571012 for the HC4-HPL-DC12V?

A: The higher coil resistance of the PT571012 (192 Ohms vs. 160 Ohms) results in lower coil current draw. Verify that existing coil drive circuits can accommodate this resistance difference. The faster switching times of the PT571012 may require evaluation in timing-sensitive applications.

Q: What is the packaging difference between these parts?

A: The HC4-HPL-DC12V is supplied in standard packaging, while the PT571012 is supplied in bulk packaging. Both are through-hole mounted components with PC pin termination suitable for PCB assembly.

Q: Is the PT571012 suitable for applications requiring the full -50°C to 60°C operating temperature range of the HC4-HPL-DC12V?

A: The PT571012 operates from -40°C to 70°C. Applications requiring operation below -40°C would exceed the substitute part's lower temperature specification and require alternative component selection.