Equivalent & Substitute Parts for TRP Connector B.V. 1840156-4

Part Overview

The TRP Connector B.V. 1840156-4 is a 4-port RJ45 modular connector jack designed for 10/100/1000 Base-T Ethernet applications with AutoMDIX capability. This component features a 90° right-angle through-hole mounting configuration with shielded design and EMI finger protection. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

1840156-4

TRP Connector B.V.In Stock: 8271840156-4 Datasheet

Current PartRFQ

1840697-4

TRP Connector B.V.In Stock: 8821840697-4 Datasheet

DirectRFQ

0879-2C2R-54

Bel Fuse Inc.In Stock: 13830879-2C2R-54 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1840156-4 is determined by strict alignment with the following core parameters: connector type (RJ45), port configuration (4 ports in 2 rows), mounting method (through hole), orientation (90° right angle), termination type (solder), application support (10/100/1000 Base-T with AutoMDIX), shielding design (shielded with EMI finger), and core count (8 cores per jack). All identified substitutes maintain these critical specifications, ensuring functional compatibility at the circuit board level. Variations in secondary parameters such as contact finish thickness, shield material composition, housing material, and specific feature implementations (board guide versus board lock) do not affect core electrical or mechanical substitutability.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full functional and mechanical compatibility with the 1840156-4 specification. The TRP Connector B.V. 1840697-4 is an active product from the original manufacturer, providing direct lineage and design continuity. The Bel Fuse Inc. 0879-2C2R-54 (MagJack® series) is an active alternative from an established connector manufacturer, offering equivalent electrical performance and compliance certifications. Both substitutes are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. Selection between these alternatives should be based on supply chain availability, lead time requirements, and existing qualification status within your organization's component database.

Frequently Asked Questions (FAQ)

Q: Can the 1840697-4 directly replace the obsolete 1840156-4 in existing designs? A: Yes. Both parts share identical connector type, port configuration, mounting method, orientation, termination type, application support, shielding design, and core count. The 1840697-4 is an active product from the original manufacturer.

Q: What is the height difference between the main part and substitutes? A: The 1840156-4 has a height of 0.992" (25.19mm), while both the 1840697-4 and 0879-2C2R-54 measure 1.004" (25.50mm). This 0.012" (0.31mm) difference must be evaluated against your PCB layout constraints and enclosure clearances.

Q: Are there material differences between the TRP and Bel Fuse alternatives? A: Yes. The 1840156-4 and 1840697-4 use phosphor bronze contacts with brass shielding and thermoplastic housing. The 0879-2C2R-54 uses copper alloy contacts with copper alloy shielding and polybutylene terephthalate (PBT) housing. All configurations support the same electrical performance for 10/100/1000 Base-T applications.

Q: What is the contact finish thickness difference? A: The 1840156-4 and 0879-2C2R-54 specify 50.0µin (1.27µm) contact finish thickness, while the 1840697-4 specifies 30.0µin (0.76µm). Both thicknesses are within acceptable ranges for solder termination reliability.

Q: Are both substitutes available in the same packaging? A: The 1840697-4 packaging is listed as unspecified. The 0879-2C2R-54 is supplied in tray packaging. Confirm packaging requirements with your procurement process.

Q: Do all parts support AutoMDIX functionality? A: Yes. All three parts are specified for 10/100/1000 Base-T with AutoMDIX capability.