TE Connectivity Potter & Brumfield Relays 1887100-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield Relays 1887100-3 is a general purpose relay with SPDT (1 Form C) contact configuration, rated for 16A at 24VDC coil voltage. This socketable relay is designed for plug-in termination applications requiring switching up to 400VAC maximum. The part is classified as obsolete, making identification of equivalent substitute components necessary for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

1887100-3

TE Connectivity Potter & Brumfield RelaysIn Stock: 12371887100-3 Datasheet

Current PartRFQ

40.61.9.024.0000

Finder Relays, Inc.In Stock: 152540.61.9.024.0000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1887100-3 is determined by strict equivalence across the following critical parameters:

Contact Configuration & Current Rating: Both the main part and substitute must maintain SPDT (1 Form C) contact form with 16A contact rating to ensure functional compatibility within the circuit.

Coil Specifications: The 24VDC coil voltage is a primary selection criterion. Substitute parts must operate at identical coil voltage to maintain compatibility with existing power supply circuits.

Switching Capability: Maximum switching voltage of 400VAC establishes the upper limit for load voltage applications. Substitute parts must support this voltage threshold.

Mounting & Termination: Socketable mounting type with plug-in termination style ensures physical and electrical compatibility with existing relay sockets and PCB layouts.

Coil Type: Non-latching operation is required to maintain the relay's momentary switching behavior in the application circuit.

Compliance & Environmental: RoHS3 compliance and operating temperature range compatibility ensure regulatory and operational suitability.

The Finder Relays 40.61.9.024.0000 meets these critical substitution criteria while maintaining functional equivalence for general purpose relay applications.

Parameter Comparison

Engineering Selection Recommendations

The Finder Relays 40.61.9.024.0000 serves as a direct functional equivalent for the obsolete TE Connectivity 1887100-3. Both components share identical contact configuration, current rating, coil voltage, and switching voltage specifications, establishing electrical interchangeability for general purpose relay applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements. The Finder substitute demonstrates an extended operating temperature range (-40°C ~ 85°C versus -40°C ~ 70°C), providing additional thermal margin in applications operating at elevated ambient temperatures.

Both components carry identical ECCN (EAR99) and HTSUS (8536.41.0050) classifications, ensuring consistent export and tariff treatment.

The socketable mounting configuration with plug-in termination ensures direct physical compatibility with existing relay socket installations designed for the original TE Connectivity part.

Frequently Asked Questions (FAQ)

Q: Can the Finder Relays 40.61.9.024.0000 directly replace the TE Connectivity 1887100-3 in existing applications?

A: Yes. Both relays share identical SPDT contact form, 16A current rating, 24VDC coil voltage, 400VAC maximum switching voltage, socketable mounting, and plug-in termination. The Finder part is electrically and mechanically compatible for direct substitution in existing relay sockets.

Q: What are the key differences between these two relay models?

A: The primary differences are: (1) Coil current: TE Connectivity draws 16.7 mA versus Finder's 27 mA; (2) Coil resistance: TE Connectivity 1.44 kOhms versus Finder 900 Ohms; (3) Operating temperature range: TE Connectivity -40°C ~ 70°C versus Finder -40°C ~ 85°C; (4) Contact material: TE Connectivity uses Silver Nickel (AgNi) versus Finder's Silver Cadmium Oxide (AgCdO); (5) Operate/Release times: TE Connectivity 9ms/6ms versus Finder 7ms/3ms. These differences do not affect functional substitution for general purpose relay applications.

Q: Are both relays RoHS compliant?

A: Yes. Both the TE Connectivity 1887100-3 and Finder Relays 40.61.9.024.0000 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the significance of the socketable mounting type?

A: Socketable mounting indicates both relays are designed for plug-in installation into standardized relay sockets. This ensures physical compatibility with existing PCB layouts and relay base installations without requiring modifications to the circuit board or socket hardware.

Q: Can the Finder relay operate at the extended temperature range in all applications?

A: The Finder relay's extended operating range (-40°C ~ 85°C) provides additional thermal capability compared to the TE Connectivity part (-40°C ~ 70°C). Applications operating within the TE Connectivity's original temperature specification will function identically with the Finder substitute. Applications requiring operation above 70°C benefit from the Finder's extended range.

Q: Are there any compliance or export considerations when substituting these parts?

A: Both relays carry identical ECCN (EAR99) and HTSUS (8536.41.0050) classifications, ensuring consistent export control and tariff treatment. No additional compliance documentation is required for substitution.