RP420110 General Purpose Relay DPDT 110VDC Equivalent & Substitute Parts

Part Overview

The RP420110 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, featuring a DPDT (2 Form C) contact configuration with an 110VDC coil. This through-hole mounted relay is designed for applications requiring 8A contact switching at up to 400VAC maximum switching voltage. The RP420110 is classified as obsolete product status, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for new production and field service applications.

Substiute Parts

RP420110

TE Connectivity Potter & Brumfield RelaysIn Stock: 1000RP420110 Datasheet

Current PartRFQ

RP424110

TE Connectivity Potter & Brumfield RelaysIn Stock: 769RP424110 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RP420110 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil voltage: 110VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 8 A minimum
• Switching voltage: 400VAC maximum or greater
• Mounting type: Through hole
• Termination style: PC pin
• Operating temperature range: -40°C ~ 70°C minimum
• Coil type: Non latching
• Seal rating: Sealed - flux protection
• RoHS compliance status

The RP424110 satisfies all mandatory matching parameters and is classified as an active product, providing direct functional and mechanical compatibility with the obsolete RP420110. Both parts share identical electrical performance specifications including coil current (4.8 mA), must-operate voltage (77 VDC), must-release voltage (11 VDC), operate time (9 ms), and release time (3 ms).

Parameter Comparison

Engineering Selection Recommendations

The RP424110 is the direct active equivalent for the obsolete RP420110. Both parts are manufactured by TE Connectivity Potter & Brumfield Relays within the RP II/2 SCHRACK series and provide identical electrical and mechanical performance across all critical operating parameters.

Product Status Consideration: The RP420110 is classified as obsolete, while the RP424110 maintains active product status. This distinction ensures long-term component availability and continued manufacturer support for the RP424110.

Compliance and Certification: Both parts maintain RoHS compliance and share identical ECCN (EAR99) and HTSUS (8536.49.0050) classifications, ensuring regulatory equivalence for procurement and export purposes.

Contact Material Difference: The RP420110 utilizes Silver Cadmium Oxide (AgCdO) contact material, while the RP424110 employs Silver Nickel (AgNi) contact material. Both materials are suitable for the specified 8A contact rating and 400VAC maximum switching voltage. The contact material difference does not affect functional compatibility or electrical performance within the stated operating parameters.

Packaging: Both parts are supplied in tube packaging, maintaining consistency in handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the RP424110 directly replace the RP420110 in existing designs?

A: Yes. The RP424110 provides direct functional and mechanical replacement for the RP420110. Both parts share identical coil voltage (110VDC), contact configuration (DPDT), current rating (8A), switching voltage (400VAC), mounting type (through hole), and termination style (PC pin). All electrical performance parameters including operate time, release time, and coil current are identical.

Q: What is the significance of the contact material difference between these parts?

A: The RP420110 uses Silver Cadmium Oxide (AgCdO) contact material, while the RP424110 uses Silver Nickel (AgNi). Both materials are rated for the same 8A contact current and 400VAC maximum switching voltage. The contact material difference does not affect compatibility or performance within the specified operating parameters.

Q: Why is the RP420110 classified as obsolete?

A: The RP420110 is no longer in active production. The RP424110 serves as the active equivalent part, ensuring continued availability and manufacturer support for new designs and field service applications.

Q: Are there any differences in packaging between these parts?

A: Both the RP420110 and RP424110 are supplied in tube packaging. No packaging differences exist between these parts.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the RP420110 and RP424110 are RoHS compliant and share identical ECCN (EAR99) and HTSUS (8536.49.0050) classifications.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching coil voltage (110VDC), contact form (DPDT), contact rating (8A), switching voltage (400VAC maximum), mounting type (through hole), termination style (PC pin), operating temperature range (-40°C ~ 70°C), coil type (non latching), and seal rating (sealed - flux protection). The RP424110 meets all these criteria.