HC4-DC100V-D Equivalent & Substitute Parts

Part Overview

The HC4-DC100V-D is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 100VDC coil. This relay is rated for 5A switching capacity at up to 250VAC maximum switching voltage. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications where this relay is specified in existing designs.

Substiute Parts

HC4-DC100V-D

Panasonic Electric WorksIn Stock: 1093HC4-DC100V-D Datasheet

Current PartRFQ

MM4XP-D DC100/110

Omron Automation and SafetyIn Stock: 1119MM4XP-D DC100/110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC4-DC100V-D is determined by the following critical parameters:

Primary Substitution Criteria:

• Contact form must be 4PDT (4 Form C) to maintain circuit topology compatibility
• Coil voltage must be within the operating range of the control circuit (100VDC nominal specification)
• Contact current rating must equal or exceed 5A to handle the load without derating
• Coil type must be Non Latching to match functional behavior
• Diode feature must be present for transient suppression compatibility

Secondary Compatibility Parameters:

• Must Operate Voltage and Must Release Voltage must fall within acceptable control circuit tolerances
• Operating temperature range must encompass the application environment
• Switching voltage capability must support the circuit's maximum voltage requirements

The MM4XP-D DC100/110 qualifies as a substitute based on matching contact form (4PDT), coil type (Non Latching), diode feature, and exceeding the current rating requirement (7A vs. 5A). The 110VDC coil voltage is compatible with 100VDC control circuits within standard relay operating margins.

Parameter Comparison

Engineering Selection Recommendations

The MM4XP-D DC100/110 is an active product from Omron Automation and Safety and serves as the primary substitute for the obsolete HC4-DC100V-D. Selection of this substitute is supported by:

Product Status: The MM4XP-D DC100/110 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete HC4-DC100V-D.

Compliance: The MM4XP-D DC100/110 is RoHS Compliant, meeting current environmental and regulatory standards. Both parts share identical ECCN (EAR99) and HTSUS (8536.49.0050) classifications.

Functional Equivalence: Both relays maintain 4PDT contact configuration, Non Latching coil type, and integrated diode protection. The MM4XP-D DC100/110 provides higher current capacity (7A vs. 5A), offering improved margin for load handling.

Operational Differences: The MM4XP-D DC100/110 exhibits longer switching times (50ms operate, 100ms release vs. 20ms for both) and a narrower operating temperature range (-10°C ~ 55°C vs. -50°C ~ 70°C). These differences must be evaluated against specific application requirements.

Mounting Consideration: The MM4XP-D DC100/110 is socketable with 15-pin octal termination, differing from the HC4-DC100V-D. Socket compatibility and PCB layout modifications may be required during implementation.

Frequently Asked Questions (FAQ)

Q: Can the MM4XP-D DC100/110 directly replace the HC4-DC100V-D in existing designs?

A: Functional substitution is possible based on matching contact form, coil type, and diode features. However, physical mounting differences (socketable vs. non-socketable) and termination style (15-pin octal vs. unspecified) require mechanical evaluation. Switching time differences (50ms/100ms vs. 20ms/20ms) must be assessed against timing-critical circuit requirements.

Q: What are the key electrical compatibility factors?

A: The 110VDC coil voltage of the MM4XP-D DC100/110 is compatible with 100VDC control circuits, as the Must Operate Voltage (77VDC) and Must Release Voltage (11VDC) fall within acceptable operating margins. The higher coil current (22mA vs. 10mA) requires verification that the control circuit can supply this additional current without exceeding driver specifications.

Q: Are there temperature range limitations with the substitute?

A: The MM4XP-D DC100/110 operates within -10°C ~ 55°C, which is narrower than the HC4-DC100V-D range of -50°C ~ 70°C. Applications requiring operation below -10°C or above 55°C cannot use this substitute without additional thermal management or alternative solutions.

Q: What is the significance of the higher current rating on the substitute?

A: The MM4XP-D DC100/110 is rated for 7A contact current versus 5A for the HC4-DC100V-D. This provides additional capacity margin and reduces contact stress during switching operations, potentially extending relay life in the application.

Q: How do switching time differences affect circuit performance?

A: The MM4XP-D DC100/110 has longer switching times (50ms operate, 100ms release) compared to the HC4-DC100V-D (20ms for both). In time-sensitive applications such as fast switching sequences or high-frequency control circuits, these differences may impact system performance and require circuit redesign or alternative component selection.