HC1-HTM-AC120V-F Equivalent & Substitute Parts

Part Overview

The HC1-HTM-AC120V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a Single Pole Double Throw (SPDT) contact configuration with a 120VAC coil. This chassis-mount relay is rated for 10A switching capacity at 250VAC maximum and operates with a 20ms response time. The product is currently obsolete, making equivalent substitutes necessary for system maintenance, repair, and new design implementations where this relay specification remains applicable.

Substiute Parts

HC1-HTM-AC120V-F

Panasonic Electric WorksIn Stock: 799HC1-HTM-AC120V-F Datasheet

Current PartRFQ

LY1F-AC100/110

Omron Automation and SafetyIn Stock: 891LY1F-AC100/110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC1-HTM-AC120V-F is determined by the following critical parameters:

Functional Equivalence Requirements:

• Contact form must be SPDT (1 Form C)
• Relay type must be General Purpose
• Mounting type must be Chassis Mount
• Termination style must be Plug In

Electrical Compatibility Parameters:

• Coil voltage must operate within the system's 120VAC supply specification
• Contact rating (current) must meet or exceed 10A minimum
• Switching voltage capability must support 250VAC operation
• Coil type must be Non Latching

Environmental & Operational Parameters:

• Operating temperature range must encompass the application environment
• Contact material must provide equivalent switching reliability
• Moisture sensitivity level must be compatible with storage and operational conditions

The LY1F-AC100/110 meets these substitution criteria through equivalent contact configuration, general purpose relay classification, chassis mount design, and plug-in termination. Electrical parameters remain within acceptable operating margins for the specified application.

Parameter Comparison

Engineering Selection Recommendations

The LY1F-AC100/110 is an active product substitute for the obsolete HC1-HTM-AC120V-F. Both relays share identical contact form (SPDT), relay classification (General Purpose), mounting configuration (Chassis Mount), and termination method (Plug In).

The LY1F-AC100/110 provides higher contact current rating (15A versus 10A), offering improved margin for the application. Coil voltage operates at 110VAC compared to the original 120VAC specification, representing a 8.3% reduction that remains within acceptable operating parameters given the must-operate voltage of 88VAC. Both products maintain equivalent coil current draw (11mA versus 11.9mA) and non-latching coil type.

The substitute part is RoHS compliant and maintains MSL 1 rating identical to the original. Both products carry EAR99 export classification and identical HTSUS codes, confirming regulatory equivalence.

Response time increases marginally from 20ms to 25ms for both operate and release functions, which is acceptable for general purpose relay applications unless timing-critical specifications exist in the system design.

Frequently Asked Questions (FAQ)

Q: Can the LY1F-AC100/110 directly replace the HC1-HTM-AC120V-F in existing installations?

A: Yes, for applications where the coil voltage tolerance permits 110VAC operation. The 10VAC difference falls within the must-operate voltage margin (88VAC minimum). Verify that the system power supply can accommodate 110VAC coil voltage before installation.

Q: What is the significance of the higher 15A contact rating on the substitute part?

A: The LY1F-AC100/110 is rated for 15A switching capacity compared to the original 10A rating. This provides additional safety margin and allows the relay to handle higher current loads without derating. The substitute is suitable for applications requiring the original 10A specification.

Q: Are there differences in operating temperature ranges between these relays?

A: Yes. The HC1-HTM-AC120V-F operates from -50°C to 70°C, while the LY1F-AC100/110 operates from -25°C to 55°C. For applications requiring operation below -25°C or above 55°C, the original specification must be maintained or alternative substitutes identified.

Q: How do the response times compare?

A: The HC1-HTM-AC120V-F operates and releases in 20ms. The LY1F-AC100/110 requires 25ms for both functions. This 5ms difference is negligible for general purpose relay applications but should be verified if timing-critical circuit functions depend on relay response speed.

Q: What is the packaging difference between these parts?

A: The HC1-HTM-AC120V-F is supplied in standard packaging, while the LY1F-AC100/110 is supplied in bulk packaging. Verify packaging requirements for your procurement and inventory management processes.

Q: Are both relays RoHS compliant?

A: The HC1-HTM-AC120V-F product status is obsolete with no RoHS compliance statement provided. The LY1F-AC100/110 is explicitly RoHS compliant, meeting current environmental regulations for electronic components.