HC2E-H-AC12V-F Equivalent & Substitute Parts

Part Overview

The HC2E-H-AC12V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 12VAC coil. This socketable, 8-pin relay is rated for 3A switching at 250VAC maximum and operates across -40°C to 60°C. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in legacy applications.

Substiute Parts

HC2E-H-AC12V-F

Panasonic Electric WorksIn Stock: 1078HC2E-H-AC12V-F Datasheet

Current PartRFQ

NC2EBD-DC12V

Panasonic Electric WorksIn Stock: 980NC2EBD-DC12V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC2E-H-AC12V-F is determined by the following critical parameters:

• Contact form must remain DPDT (2 Form C) to maintain circuit switching capability
• Mounting type must be socketable to ensure physical compatibility with existing relay bases
• Termination style must support plug-in connection with 8-pin configuration
• Seal rating must be fully sealed to maintain environmental protection
• Operating temperature range must encompass or exceed the original specification (-40°C ~ 60°C)
• Contact material must be compatible with 250VAC switching applications
• Coil type must be non-latching to match operational behavior

The NC2EBD-DC12V qualifies as a substitute based on these parameters. While the coil voltage differs (12VDC vs. 12VAC), the contact form, mounting type, termination style, seal rating, and socketable design enable functional replacement in applications where the coil supply can be adapted to DC operation.

Parameter Comparison

Engineering Selection Recommendations

The NC2EBD-DC12V is an active product with ROHS3 compliance, providing a path forward from the obsolete HC2E-H-AC12V-F. The substitute maintains identical contact form (DPDT), socketable mounting, and fully sealed construction. The NC2EBD-DC12V offers higher current rating (5A vs. 3A) and extended operating temperature range (-40°C to 70°C vs. -40°C to 60°C), providing operational margin in both thermal and electrical domains.

The primary consideration is coil supply: the substitute requires 12VDC instead of 12VAC. Applications currently powered by AC coil supplies must incorporate appropriate rectification or power supply modification. The reduced coil current (30 mA vs. 100 mA) in the substitute represents a secondary benefit for power efficiency.

Frequently Asked Questions (FAQ)

Q: Can the NC2EBD-DC12V directly replace the HC2E-H-AC12V-F without modification?

A: Physical and electrical contact compatibility is maintained. However, the coil supply must be changed from 12VAC to 12VDC. Direct socket substitution is possible only if the control circuit can supply 12VDC.

Q: What is the significance of the contact form DPDT (2 Form C)?

A: DPDT (Double Pole Double Throw) with 2 Form C contacts means the relay has two independent switching circuits, each capable of switching between two positions. This configuration must be preserved in any substitute to maintain circuit functionality.

Q: Why does the substitute have a higher current rating (5A vs. 3A)?

A: The NC2EBD-DC12V is rated for 5A continuous contact current, compared to 3A for the HC2E-H-AC12V-F. This higher rating does not affect compatibility; applications requiring only 3A operation remain fully supported.

Q: Are there packaging differences between these parts?

A: The HC2E-H-AC12V-F uses 8-pin plug-in termination. The NC2EBD-DC12V specifies plug-in termination with tube packaging. Both maintain socketable mounting compatibility.

Q: What is the operating temperature difference, and does it matter?

A: The HC2E-H-AC12V-F operates from -40°C to 60°C, while the NC2EBD-DC12V extends to 70°C. The substitute provides additional thermal margin and is suitable for applications across the original temperature range.

Q: How do the contact materials differ?

A: The HC2E-H-AC12V-F uses Silver Alloy with Cadmium-Free and Gold plating. The NC2EBD-DC12V uses Silver Nickel (AgNi). Both materials are suitable for 250VAC switching applications and fully sealed relay construction.