HC2-HTM-AC24V-F Equivalent & Substitute Parts

Part Overview

The HC2-HTM-AC24V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 24VAC coil and 7A contact rating. This relay is designed for chassis mount applications with plug-in termination. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance, repair, and redesign applications where continued availability is required.

Substiute Parts

HC2-HTM-AC24V-F

Panasonic Electric WorksIn Stock: 985HC2-HTM-AC24V-F Datasheet

Current PartRFQ

LY2F-AC24

Omron Automation and SafetyIn Stock: 857LY2F-AC24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LY2F-AC24 from Omron Automation and Safety qualifies as a substitute for the HC2-HTM-AC24V-F based on the following critical parameters:

• Coil Voltage: Both operate at 24VAC
• Contact Form: Both feature DPDT (2 Form C) configuration
• Coil Type: Both are non-latching relays
• Termination Style: Both use plug-in termination
• Mounting Type: Both are chassis mount
• Must Operate Voltage: Both require 19.2 VAC minimum
• Must Release Voltage: Both release at 7.2 VAC maximum
• Contact Material: Both use silver alloy contacts
• Relay Type: Both are general purpose relays

The LY2F-AC24 provides a higher contact rating (10A versus 7A), which ensures compatibility in applications where the original 7A rating is sufficient. The substitute maintains equivalent electrical performance characteristics and mechanical interface compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LY2F-AC24 is an active product from Omron Automation and Safety and represents the primary substitute option for the obsolete HC2-HTM-AC24V-F. The substitute maintains all critical electrical parameters including coil voltage, contact form, operating and release voltages, and termination compatibility.

The LY2F-AC24 provides enhanced contact rating (10A versus 7A), which offers improved margin for applications originally designed for the 7A HC2-HTM-AC24V-F. The substitute is RoHS compliant, supporting modern manufacturing and environmental compliance requirements.

Operating temperature range differs between the two models. The HC2-HTM-AC24V-F operates from -50°C to 70°C, while the LY2F-AC24 operates from -25°C to 55°C. Applications requiring operation below -25°C or above 55°C must evaluate alternative substitutes or confirm the HC2-HTM-AC24V-F operating range is not a critical design requirement.

Switching voltage capability is expanded in the LY2F-AC24, which supports both 250VAC and 125VDC maximum switching voltages compared to the HC2-HTM-AC24V-F specification of 250VAC maximum.

Frequently Asked Questions (FAQ)

Q: Can the LY2F-AC24 directly replace the HC2-HTM-AC24V-F in existing applications?

A: Yes, the LY2F-AC24 is mechanically and electrically compatible for direct substitution. Both relays feature identical coil voltage (24VAC), contact form (DPDT), termination style (plug-in), and mounting type (chassis mount). The higher contact rating of the LY2F-AC24 (10A) ensures compatibility in applications designed for the 7A HC2-HTM-AC24V-F.

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

A: The primary differences are product status (obsolete versus active), contact rating (7A versus 10A), operating temperature range (-50°C to 70°C versus -25°C to 55°C), switching voltage capability (250VAC only versus 250VAC and 125VDC), and response time (20ms versus 25ms). The LY2F-AC24 is RoHS compliant.

Q: Are there any applications where the LY2F-AC24 cannot substitute for the HC2-HTM-AC24V-F?

A: Applications requiring operation below -25°C or above 55°C must verify that the reduced operating temperature range of the LY2F-AC24 is acceptable. Applications with timing-critical requirements may need to evaluate the 5ms difference in operate and release times (20ms versus 25ms).

Q: What is the packaging difference between these relays?

A: The HC2-HTM-AC24V-F is supplied with standard packaging, while the LY2F-AC24 is supplied in bulk packaging. Both use identical plug-in termination and chassis mount configuration.

Q: Are both relays RoHS compliant?

A: The LY2F-AC24 is RoHS compliant. RoHS compliance status for the HC2-HTM-AC24V-F is not specified in the available data.