HC1E-HTM-AC12V-F Equivalent & Substitute Parts

Part Overview

The HC1E-HTM-AC12V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a Single Pole Double Throw (SPDT) contact configuration with a 12VAC coil. This chassis-mounted relay is rated for 5A switching capacity at 250VAC maximum and operates with a 100mA coil current. 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 legacy equipment.

Substiute Parts

HC1E-HTM-AC12V-F

Panasonic Electric WorksIn Stock: 869HC1E-HTM-AC12V-F Datasheet

Current PartRFQ

G2R-1-T AC12

Omron Automation and SafetyIn Stock: 1246G2R-1-T AC12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC1E-HTM-AC12V-F is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 12VAC
• Contact Form: SPDT (1 Form C)
• Coil Type: Non Latching
• Must Operate Voltage: 9.6VAC minimum
• Must Release Voltage: 3.6VAC maximum

Allowable Variation Parameters:

• Contact Rating (Current): Substitute must equal or exceed 5A
• Switching Voltage: Substitute must equal or exceed 250VAC
• Coil Current: May vary within design tolerance
• Operate/Release Time: May vary within acceptable switching performance windows
• Operating Temperature Range: May extend beyond -40°C to 60°C
• Termination Style: May differ if mechanical integration is accommodated
• Seal Rating: May vary based on application environment requirements

The G2R-1-T AC12 meets all mandatory parameters while exceeding current and voltage ratings, making it a valid substitute for applications where the HC1E-HTM-AC12V-F is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The G2R-1-T AC12 is an active product from Omron Automation and Safety, providing immediate availability as a substitute for the obsolete HC1E-HTM-AC12V-F. Both relays share identical coil voltage (12VAC), contact configuration (SPDT), and operating thresholds (9.6VAC must-operate, 3.6VAC must-release).

The G2R-1-T AC12 provides enhanced electrical performance with doubled contact current rating (10A versus 5A) and increased switching voltage capability (380VAC/125VDC versus 250VAC). The substitute operates at lower coil current (75mA versus 100mA), reducing power consumption in the control circuit.

Termination style differs between the two relays: the original uses plug-in termination while the substitute employs quick-connect 0.187" terminals. Mechanical integration must be verified during design transition. The substitute's extended operating temperature range (-40°C to 70°C) provides additional thermal margin compared to the original specification.

Both relays carry MSL 1 (Unlimited) moisture sensitivity rating and are compliant with applicable regulatory standards (ECCN EAR99).

Frequently Asked Questions (FAQ)

Q: Can the G2R-1-T AC12 directly replace the HC1E-HTM-AC12V-F without circuit modification?

A: The G2R-1-T AC12 matches all critical electrical parameters (coil voltage, contact form, operating thresholds). However, termination style differs (quick-connect versus plug-in), requiring mechanical adapter verification or terminal redesign. Coil current reduction (75mA versus 100mA) benefits the control circuit but does not require modification.

Q: What is the significance of the 5ms difference in operate time (10ms versus 15ms)?

A: The G2R-1-T AC12 operates 5ms slower than the original. Applications with strict switching speed requirements must evaluate whether this delay affects system performance. Release time remains identical at 10ms.

Q: Are there compatibility concerns with the different termination styles?

A: Yes. The HC1E-HTM-AC12V-F uses plug-in termination while the G2R-1-T AC12 uses quick-connect 0.187" terminals. Physical mounting and electrical connection methods differ. Mechanical integration must be assessed during substitution planning.

Q: Does the higher contact current rating (10A versus 5A) create any issues?

A: No. Higher current rating provides design margin and does not create compatibility issues. The substitute can safely handle all loads within the original 5A specification.

Q: What is the impact of the extended operating temperature range?

A: The G2R-1-T AC12 operates to 70°C versus 60°C for the original. This provides additional thermal margin in high-temperature environments and does not restrict operation in the original temperature range.

Q: Are both relays RoHS compliant?

A: The G2R-1-T AC12 is explicitly RoHS compliant. The HC1E-HTM-AC12V-F uses cadmium-free silver alloy contacts, indicating RoHS alignment, though explicit RoHS certification status is not provided in the original specification.