HC3-HP-DC6V-F Equivalent & Substitute Parts

Part Overview

The HC3-HP-DC6V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a 3PDT (3 Form C) contact configuration with a 6VDC coil. This through-hole mounted relay is designed for applications requiring simultaneous switching of three independent circuits. The product is currently obsolete, making identification of compatible substitute components essential for system maintenance, repair, and redesign applications.

Substiute Parts

HC3-HP-DC6V-F

Panasonic Electric WorksIn Stock: 989HC3-HP-DC6V-F Datasheet

Current PartRFQ

LY3-0-DC6

Omron Automation and SafetyIn Stock: 865LY3-0-DC6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HC3-HP-DC6V-F is determined by the following critical parameters:

• Coil Voltage: Must be 6VDC to ensure direct compatibility with existing power supply circuits
• Contact Form: Must be 3PDT (3 Form C) to maintain the same switching capability across three independent circuits
• Mounting Type: Must be Through Hole to ensure mechanical compatibility with PCB layouts
• Termination Style: Must be PC Pin to match existing board connections
• Must Operate Voltage and Must Release Voltage: Must meet or exceed 4.8 VDC and 0.6 VDC respectively to ensure reliable operation within the same control voltage range

The LY3-0-DC6 from Omron Automation and Safety meets all critical substitution criteria. While this substitute exhibits higher contact current rating (10 A versus 7 A) and different operating temperature range, these parameters represent enhanced or alternative specifications that do not prevent functional substitution in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The LY3-0-DC6 is the qualified substitute for the obsolete HC3-HP-DC6V-F. Selection of this substitute is supported by the following factors:

• Product Status: The LY3-0-DC6 maintains active product status, ensuring ongoing availability and manufacturer support
• Compliance: The LY3-0-DC6 is RoHS Compliant, meeting current environmental and regulatory requirements
• Functional Equivalence: Both relays share identical coil voltage, contact form, mounting type, and termination style
• Enhanced Specifications: The LY3-0-DC6 provides higher contact current rating (10 A) and expanded switching voltage capability (250VAC, 125VDC), making it suitable for applications originally designed for the HC3-HP-DC6V-F

Applications operating within the LY3-0-DC6 temperature range (-25°C ~ 55°C) will experience full functional compatibility. Applications requiring operation below -25°C or above 55°C must evaluate alternative substitutes or retain original stock of the HC3-HP-DC6V-F.

Frequently Asked Questions (FAQ)

Q: Can the LY3-0-DC6 directly replace the HC3-HP-DC6V-F without PCB modifications?

A: Yes. Both relays feature identical through-hole PC pin termination and 3PDT contact configuration. No PCB layout changes are required for mechanical or electrical substitution.

Q: What is the impact of the higher coil current (234 mA vs. 150 mA) in the LY3-0-DC6?

A: The LY3-0-DC6 requires additional coil current from the control circuit. Verify that the control circuit power supply and drive circuitry can supply 234 mA at 6VDC. This is a design consideration, not a compatibility barrier.

Q: Are there temperature range limitations when substituting the LY3-0-DC6?

A: The LY3-0-DC6 operates within -25°C ~ 55°C, which is narrower than the original HC3-HP-DC6V-F range (-50°C ~ 70°C). Applications requiring operation outside the LY3-0-DC6 temperature range must use alternative substitutes or original inventory.

Q: Does the RoHS compliance of the LY3-0-DC6 affect compatibility?

A: No. RoHS compliance indicates adherence to environmental standards and does not affect electrical or mechanical compatibility. This is an advantage for new designs and regulatory compliance.

Q: What is the significance of the different coil resistance (25.7 Ohms vs. 40 Ohms)?

A: Coil resistance affects the relationship between applied voltage and coil current. The LY3-0-DC6 lower resistance results in higher coil current at the same voltage. Both relays meet the same must-operate and must-release voltage thresholds, ensuring functional compatibility within the specified voltage range.

Q: Can the LY3-0-DC6 handle the same switching voltage as the HC3-HP-DC6V-F?

A: Yes. The LY3-0-DC6 supports 250VAC switching voltage, matching the HC3-HP-DC6V-F specification. The LY3-0-DC6 additionally supports 125VDC switching, providing expanded application capability.