HC4-HP-AC100V Equivalent & Substitute Parts

Part Overview

The HC4-HP-AC100V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 100VAC coil. This through-hole mounted relay is rated for 5A switching capacity at 250VAC maximum and operates across a temperature range of -50°C to 70°C. The product is currently obsolete, making identification of compatible substitute components essential for system maintenance, repair, and redesign applications where this relay is specified in existing designs.

Substiute Parts

HC4-HP-AC100V

Panasonic Electric WorksIn Stock: 1069HC4-HP-AC100V Datasheet

Current PartRFQ

MY4-02-AC100/110

Omron Automation and SafetyIn Stock: 1082MY4-02-AC100/110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC4-HP-AC100V is determined by the following critical parameters:

• Contact Configuration: 4PDT (4 Form C) contact form is mandatory for functional equivalence
• Coil Voltage Class: 100VAC nominal coil voltage with acceptable operating range between 80VAC (must operate) and 30VAC (must release)
• Current Rating: Minimum 5A contact rating required for equivalent switching capacity
• Mounting and Termination: Through-hole mounting with PC pin termination for direct PCB compatibility
• Switching Voltage Capability: Minimum 250VAC switching voltage rating required

The MY4-02-AC100/110 from Omron Automation and Safety meets these substitution criteria with compatible electrical characteristics and identical contact configuration, though with a reduced current rating of 3A and slightly different coil voltage specification (110VAC nominal).

Parameter Comparison

Engineering Selection Recommendations

The MY4-02-AC100/110 serves as an active substitute for the obsolete HC4-HP-AC100V. Both relays share identical contact configuration (4PDT), mounting type (through-hole), and termination style (PC pin), enabling direct functional replacement in circuit designs.

Key considerations for selection:

• The MY4-02-AC100/110 is currently in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete HC4-HP-AC100V
• The substitute operates at 110VAC nominal coil voltage versus 100VAC, with must-operate and must-release voltage specifications that remain within acceptable operating margins for standard 100VAC supply systems
• The MY4-02-AC100/110 features a reduced contact current rating of 3A compared to the original 5A specification; applications requiring the full 5A switching capacity must evaluate load requirements against this limitation
• The substitute provides extended operating temperature range (-55°C to 70°C) compared to the original (-50°C to 70°C)
• The MY4-02-AC100/110 is RoHS compliant, meeting modern environmental and regulatory standards

Frequently Asked Questions (FAQ)

Q: Can the MY4-02-AC100/110 directly replace the HC4-HP-AC100V in existing designs?

A: Direct replacement is possible for applications where the 3A contact current rating is sufficient. The identical 4PDT contact configuration, through-hole mounting, and PC pin termination enable physical and electrical compatibility. However, applications requiring the full 5A switching capacity of the original relay must evaluate whether the reduced rating of the substitute meets load specifications.

Q: What is the impact of the 110VAC coil voltage specification on a 100VAC supply system?

A: The MY4-02-AC100/110 is designed for 110VAC nominal operation with a must-operate voltage of 88VAC and must-release voltage of 33VAC. Standard 100VAC supply systems typically operate within this range, ensuring reliable relay operation. Voltage regulation and supply stability should be evaluated for the specific application.

Q: Are there packaging differences between these relays?

A: The HC4-HP-AC100V is packaged as individual units, while the MY4-02-AC100/110 is supplied in bulk packaging. Both utilize identical through-hole PC pin termination for PCB mounting.

Q: What are the contact material differences and their implications?

A: The HC4-HP-AC100V uses Silver Nickel (AgNi) contact material, while the MY4-02-AC100/110 uses Silver (Ag). Both materials are suitable for general purpose relay applications with 250VAC switching capability. Contact material selection does not affect functional compatibility for standard switching applications.

Q: How do the operating temperature ranges compare?

A: The MY4-02-AC100/110 provides a slightly extended lower temperature limit (-55°C versus -50°C), offering improved performance in cold environment applications. Both relays maintain the same upper temperature limit of 70°C.