HC4-HP-DC100V Equivalent & Substitute Parts

Part Overview

The HC4-HP-DC100V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 100VDC coil. This through-hole mounted relay is designed for applications requiring simultaneous switching of four independent circuits at 5A contact rating. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

HC4-HP-DC100V

Panasonic Electric WorksIn Stock: 781HC4-HP-DC100V Datasheet

Current PartRFQ

LY4-0-DC100/110

Omron Automation and SafetyIn Stock: 910LY4-0-DC100/110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LY4-0-DC100/110 manufactured by Omron Automation and Safety qualifies as a substitute for the HC4-HP-DC100V based on the following critical parameters:

Matching Parameters:

• Contact Form: 4PDT (4 Form C) — identical switching configuration
• Mounting Type: Through Hole — compatible with existing PCB layouts
• Coil Type: Non Latching — same operational behavior
• Termination Style: PC Pin — compatible with through-hole assembly
• Moisture Sensitivity Level: 1 (Unlimited) — equivalent environmental rating

Acceptable Parameter Variations:

• Coil Voltage: 110VDC (substitute) vs. 100VDC (original) — within typical relay operating margin; must operate voltage of 88VDC ensures functionality at 100VDC supply
• Contact Rating: 10A (substitute) vs. 5A (original) — higher rating provides equivalent or superior performance
• Switching Voltage: 250VAC, 125VDC (substitute) vs. 250VAC (original) — expanded capability
• Operating Temperature: -25°C ~ 40°C (substitute) vs. -50°C ~ 70°C (original) — narrower range; verify application requirements

Parameter Comparison

Engineering Selection Recommendations

The LY4-0-DC100/110 is an active product with current manufacturing support, providing supply chain continuity for applications previously using the obsolete HC4-HP-DC100V. The substitute maintains identical contact configuration and through-hole mounting compatibility, enabling direct functional replacement in most applications.

Key considerations for selection:

Supply Chain Status: The LY4-0-DC100/110 is in active production with 881 units in stock, compared to the HC4-HP-DC100V which is obsolete with limited remaining inventory.

Compliance: The LY4-0-DC100/110 carries RoHS Compliant certification, providing environmental compliance assurance for new designs and regulatory requirements.

Operating Temperature Range: Applications requiring operation below -25°C or above 40°C must retain the original HC4-HP-DC100V or identify alternative substitutes with expanded temperature ratings.

Coil Voltage Tolerance: The 110VDC coil voltage of the substitute is compatible with 100VDC supply circuits within standard relay operating margins. Verify that the application supply voltage remains within the must-operate threshold of 88VDC.

Frequently Asked Questions (FAQ)

Q: Can the LY4-0-DC100/110 directly replace the HC4-HP-DC100V in existing designs?

A: Yes, for applications operating within -25°C to 40°C temperature range. Both relays feature identical 4PDT contact configuration, through-hole mounting, and PC pin termination. The 110VDC coil voltage is compatible with 100VDC supply circuits.

Q: What is the impact of the 10A contact rating on the LY4-0-DC100/110 versus the 5A rating of the HC4-HP-DC100V?

A: The higher 10A contact rating of the substitute provides equivalent or superior performance for applications designed for 5A switching. No circuit modification is required.

Q: Are there temperature limitations when substituting the LY4-0-DC100/110?

A: Yes. The substitute operates within -25°C to 40°C, compared to the original -50°C to 70°C range. Applications requiring operation outside this narrower range must use alternative parts.

Q: What is the difference in coil current between these relays?

A: The LY4-0-DC100/110 requires 15.9 mA coil current versus 10 mA for the HC4-HP-DC100V. Verify that the control circuit can supply this increased current without exceeding design limits.

Q: How do the switching times compare?

A: The LY4-0-DC100/110 has 25 ms operate and release times, compared to 20 ms for the HC4-HP-DC100V. For timing-critical applications, this 5 ms difference must be evaluated against system requirements.

Q: Is the LY4-0-DC100/110 RoHS compliant?

A: Yes, the LY4-0-DC100/110 is RoHS Compliant, meeting environmental and regulatory requirements for new product designs and manufacturing.