1840377-4 Equivalent & Substitute Parts Reference

Part Overview

The 1840377-4 is a 16-port RJ45 modular connector manufactured by TRP Connector B.V., designed for board edge, through-hole mounting applications supporting 10/100/1000 Base-T Ethernet with AutoMDIX functionality. This connector is part of the MagJack® series and is currently in active production with 1026 units available in stock.

Equivalent and substitute parts are identified when they maintain functional compatibility across critical electrical and mechanical parameters, including port configuration, mounting type, termination method, and performance specifications for gigabit Ethernet applications.

Substiute Parts

1840377-4

TRP Connector B.V.In Stock: 11031840377-4 Datasheet

Current PartRFQ

C850-2G8R-54

Bel Fuse Inc.In Stock: 727C850-2G8R-54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1840377-4 are qualified based on the following critical parameters:

• Connector Type & Port Configuration: RJ45 connector with 16 ports in 2-row arrangement
• Mounting & Termination: Board edge, through-hole solder termination
• Electrical Performance: Support for 10/100/1000 Base-T Ethernet with AutoMDIX capability
• Physical Characteristics: 90° right-angle orientation, 8 cores per jack, shielded design with EMI finger
• Material & Environmental Compliance: Gold-plated copper alloy contacts, PBT housing, ROHS3 compliance, operating range 0°C to 70°C

The C850-2G8R-54 from Bel Fuse Inc. meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the 1840377-4 and C850-2G8R-54 are active production components with full ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations and regulatory requirements.

The C850-2G8R-54 is packaged in trays and maintains identical electrical and mechanical specifications to the 1840377-4. Selection between these parts should be based on:

• Availability and lead time requirements
• Packaging format compatibility with assembly processes
• Supplier relationship and pricing considerations
• PCB layout and mechanical clearance validation for the specific application

Both connectors support identical Ethernet performance specifications and environmental operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the C850-2G8R-54 be used as a direct replacement for the 1840377-4?

A: Yes. Both connectors share identical electrical and mechanical specifications, including 16-port RJ45 configuration, board edge through-hole mounting, 10/100/1000 Base-T support with AutoMDIX, shielded design, and operating temperature range. They are functionally interchangeable.

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

A: Substitution is determined by matching: connector type (RJ45), port count (16), row configuration (2), mounting method (board edge through-hole), orientation (90° right angle), termination type (solder), Ethernet performance (10/100/1000 Base-T with AutoMDIX), shielding (EMI finger), contact materials (gold-plated copper alloy), and operating temperature range (0°C to 70°C).

Q: Are there packaging differences between these parts?

A: The 1840377-4 packaging format is not specified in the reference data. The C850-2G8R-54 is supplied in trays. Verify packaging compatibility with your assembly process requirements.

Q: Do both parts meet current regulatory compliance?

A: Yes. Both the 1840377-4 and C850-2G8R-54 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the height above board for these connectors?

A: The C850-2G8R-54 has a height above board of 0.775" (19.69mm). Verify this dimension against your PCB layout and enclosure clearance requirements.