HC3-DC100V-D-F Equivalent & Substitute Parts

Part Overview

The HC3-DC100V-D-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a 3PDT (3 Form C) contact configuration with a 100VDC coil. This relay is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this functionality is required.

Substiute Parts

HC3-DC100V-D-F

Panasonic Electric WorksIn Stock: 1161HC3-DC100V-D-F Datasheet

Current PartRFQ

8957120000

WeidmüllerIn Stock: 10788957120000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC3-DC100V-D-F is determined by the following critical parameters:

• Contact Configuration: 3PDT (3 Form C) contact form is mandatory for functional equivalence
• Coil Voltage: 100VDC nominal operation; substitute parts with 110VDC coil voltage fall within acceptable operating range based on must-operate and must-release voltage specifications
• Contact Current Rating: Minimum 7 A; substitute parts with equal or higher current ratings are acceptable
• Switching Voltage: Maximum 250VAC; substitute parts with equal or higher switching voltage ratings maintain compatibility
• Coil Type: Non-latching operation is required
• Features: Diode protection is present in the main part; substitute parts may include additional features without affecting core functionality
• Operating Temperature Range: -50°C ~ 70°C minimum requirement; substitute parts with equal or wider temperature ranges are acceptable
• Moisture Sensitivity Level: MSL 1 (Unlimited) classification must be maintained

The Weidmüller RCM series relay 8957120000 meets these substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 8957120000 is an active product with current manufacturing support, providing supply chain continuity for applications currently using the obsolete HC3-DC100V-D-F. Both parts maintain EAR99 export classification and MSL 1 moisture sensitivity rating.

The 110VDC coil voltage of the substitute part operates within the must-operate and must-release voltage envelope of the original design. The 10 A contact rating exceeds the 7 A requirement, and the 400VAC maximum switching voltage provides additional margin over the 250VAC specification of the original part.

The Weidmüller relay includes socketable mounting with plug-in quick-connect termination, differing from the original part's termination style. This substitution is suitable for applications where mounting compatibility can be accommodated. The RoHS Compliant and REACH Unaffected status of the substitute part aligns with current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 8957120000 directly replace the HC3-DC100V-D-F in existing applications?

A: Functional substitution is possible based on matching contact configuration (3PDT), coil type (non-latching), and operating voltage envelope. Physical mounting compatibility must be verified, as the Weidmüller part features socketable mounting with quick-connect termination, whereas the original part's mounting type is not specified.

Q: What is the impact of the 110VDC coil voltage difference?

A: The 110VDC coil voltage of the substitute part is compatible with the original 100VDC design. The must-operate voltage of 82.5 VDC and must-release voltage of 11 VDC for the substitute part fall within acceptable operating margins for systems designed around the original 80 VDC must-operate and 10 VDC must-release specifications.

Q: Are there differences in switching performance?

A: The Weidmüller 8957120000 exhibits faster switching times: 15 ms operate time and 10 ms release time, compared to 20 ms for both parameters on the original part. This represents improved performance and does not create compatibility issues in applications designed for the original timing specifications.

Q: What is the significance of the contact material difference?

A: The original part uses Silver Alloy with Cadmium-Free and Gold plating, while the substitute uses Silver Nickel (AgNi). Both materials are suitable for general-purpose relay applications. Contact material selection should be verified against specific application requirements regarding arc resistance, contact wear, and environmental exposure.

Q: Does the higher current rating of the substitute part affect compatibility?

A: The 10 A contact rating of the Weidmüller part exceeds the 7 A requirement of the original design. Higher current ratings do not create compatibility issues and provide additional design margin for the application.

Q: What packaging and termination differences exist?

A: The Weidmüller 8957120000 is supplied in bulk packaging with plug-in quick-connect 0.110" (2.8mm) termination and socketable mounting. The original part's packaging and termination style are not specified. Physical integration into existing circuit boards or relay sockets must be evaluated based on specific application requirements.