HC3-H-DC110V Equivalent & Substitute Parts

Part Overview

The HC3-H-DC110V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 3PDT (3 Form C) contact configuration with 110VDC coil voltage and 7A contact rating. This socketable relay is designed for industrial control applications requiring reliable switching across multiple circuits. The product is currently obsolete, making equivalent substitute parts necessary for system maintenance, repair, and new design implementations where legacy component compatibility is required.

Substiute Parts

HC3-H-DC110V

Panasonic Electric WorksIn Stock: 1102HC3-H-DC110V Datasheet

Current PartRFQ

MY3-DC100/110

Omron Automation and SafetyIn Stock: 1000MY3-DC100/110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC3-H-DC110V is determined by the following critical parameters:

Primary Compatibility Criteria:

• Contact form must be 3PDT (3 Form C) to maintain circuit switching architecture
• Coil voltage must be 110VDC to ensure direct compatibility with existing control circuits
• Mounting type must be socketable to fit existing relay sockets
• Termination style must be plug-in to match existing wiring configurations
• Must operate voltage and must release voltage must fall within acceptable control system tolerances

Secondary Compatibility Criteria:

• Contact rating current should meet or exceed application requirements (minimum 7A for direct replacement)
• Switching voltage capability must support the maximum voltage levels in the application circuit
• Operating temperature range must encompass the installation environment
• Coil resistance should be within acceptable tolerance for control circuit design

The MY3-DC100/110 from Omron Automation and Safety meets all primary compatibility criteria and is classified as an active substitute for the obsolete HC3-H-DC110V.

Parameter Comparison

Engineering Selection Recommendations

The MY3-DC100/110 is a direct functional substitute for the HC3-H-DC110V based on matching contact form, coil voltage, mounting type, and termination style. The substitute is an active product from Omron Automation and Safety, ensuring ongoing availability and supply chain reliability compared to the obsolete Panasonic part.

Key selection considerations:

Electrical Performance: The MY3-DC100/110 operates at identical coil voltage (110VDC) with matching must-operate and must-release voltage thresholds. The substitute draws 9.1 mA coil current versus 10 mA for the original, representing a 9% reduction in control circuit power consumption. Coil resistance increases from 10 kOhms to 11 kOhms, a 10% variance within standard engineering tolerance.

Contact Rating Differential: The substitute contact rating is 5A compared to the original 7A. Applications requiring the full 7A contact capacity must verify that actual circuit current demands do not exceed 5A. For applications operating below 5A, the substitute provides equivalent performance.

Switching Characteristics: The MY3-DC100/110 exhibits slower switching times (20 ms operate and release versus 10 ms and 5 ms respectively). Applications with timing-critical switching requirements must confirm that the extended switching delays are acceptable for system operation.

Compliance and Availability: The substitute meets RoHS compliance requirements and is actively manufactured, providing superior long-term supply security compared to the obsolete original part. Both parts share identical ECCN (EAR99) and HTSUS (8536.49.0050) classifications.

Frequently Asked Questions (FAQ)

Q: Can the MY3-DC100/110 directly replace the HC3-H-DC110V in existing installations?

A: The MY3-DC100/110 is mechanically and electrically compatible for socketable installations. Both relays feature identical 3PDT contact form, 110VDC coil voltage, and plug-in termination. However, verify that application current requirements do not exceed 5A and that switching time delays of 20 ms are acceptable for system operation.

Q: What is the significance of the 5A versus 7A contact rating difference?

A: The contact rating indicates the maximum continuous current the relay contacts can safely switch. The HC3-H-DC110V is rated for 7A while the MY3-DC100/110 is rated for 5A. If your application requires switching currents between 5A and 7A, the substitute cannot be used. For applications operating below 5A, the substitute provides equivalent performance.

Q: How do the switching time differences affect system performance?

A: The HC3-H-DC110V operates in 10 ms and releases in 5 ms. The MY3-DC100/110 operates and releases in 20 ms each. This 2x to 4x increase in switching time may impact applications requiring rapid relay response. Verify that your system timing tolerances accommodate these extended delays.

Q: Are both relays compatible with the same socket?

A: Yes. Both the HC3-H-DC110V and MY3-DC100/110 are socketable relays with plug-in termination, designed for standard relay sockets. Physical dimensions and pin configurations are compatible for direct socket installation.

Q: What compliance certifications apply to the substitute part?

A: The MY3-DC100/110 is RoHS compliant. Both parts share identical ECCN (EAR99) and HTSUS (8536.49.0050) classifications for export and tariff purposes. The original HC3-H-DC110V RoHS status is not specified in available documentation.

Q: Is the MY3-DC100/110 available in the same packaging as the original?

A: The MY3-DC100/110 is supplied in bulk packaging. The original HC3-H-DC110V packaging specification is not provided. Confirm packaging requirements with your procurement process.

Q: What is the coil resistance tolerance between the two relays?

A: The HC3-H-DC110V has 10 kOhms coil resistance while the MY3-DC100/110 has 11 kOhms. This 10% difference is within standard engineering tolerance and does not affect control circuit compatibility at 110VDC coil voltage.