1-1840775-1 RJ45 Modular Connector Equivalent & Substitute Parts

Part Overview

The 1-1840775-1 is a 1-port RJ45 through-hole modular connector manufactured by TRP Connector B.V. under the MagJack® series. This connector is designed for 10/100 Base-T and AutoMDIX applications with a 90° right-angle orientation and solder termination. The part is Active in product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or operational requirements across manufacturing environments.

Substiute Parts

1-1840775-1

TRP Connector B.V.In Stock: 7831-1840775-1 Datasheet

Current PartRFQ

6605841-1

TRP Connector B.V.In Stock: 61546605841-1 Datasheet

DirectRFQ

JD1-0003NL

Pulse ElectronicsIn Stock: 1170JD1-0003NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1-1840775-1 are classified based on strict electrical and mechanical parameter alignment:

Direct Substitute (6605841-1): This TRP Connector B.V. part maintains identical core specifications including RJ45 connector type, 1-port configuration, through-hole mounting, 90° right-angle orientation, solder termination, 4 cores per jack, shielded design with EMI finger, phosphor bronze contacts with gold finish, and ROHS3 compliance. The primary difference is packaging format (Tray vs. standard) and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C). This part is a direct functional equivalent suitable for applications requiring broader thermal performance.

Similar Substitute (JD1-0003NL): This Pulse Electronics part from the PULSEJACK™ JD1 series shares the same connector type (RJ45), port count (1), mounting method (through-hole), orientation (90° right-angle), termination (solder), and core count (4). However, it differs in contact material (copper alloy vs. phosphor bronze), contact finish thickness (6.00µin vs. 50.0µin), height above board (0.543" vs. 0.555"), shielding design (standard vs. EMI finger), and housing material (thermoplastic vs. PET/polyester). This part is suitable for applications where these parameter variations are acceptable and RoHS compliance is required.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution: Part 6605841-1 is the primary equivalent for 1-1840775-1. Both parts are manufactured by TRP Connector B.V., maintain identical mechanical and electrical specifications, and carry ROHS3 compliance. The extended operating temperature range (-40°C ~ 85°C) of 6605841-1 makes it suitable for applications requiring broader thermal performance while maintaining all other functional parameters. Packaging format differs (Tray), which may affect procurement and handling procedures but does not impact electrical or mechanical compatibility.

For Alternative Selection: Part JD1-0003NL from Pulse Electronics is a functional alternative when supply constraints or design requirements necessitate a different manufacturer. This part maintains core RJ45 connector functionality, through-hole mounting, and AutoMDIX capability. However, differences in contact material composition, contact finish thickness, and shielding design (absence of EMI finger) require design validation. The reduced height above board (0.543" vs. 0.555") may affect PCB layout compatibility. RoHS compliance is confirmed for all three parts, supporting regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can 6605841-1 be used as a direct replacement for 1-1840775-1 in all applications?

A: Yes. Both parts are manufactured by TRP Connector B.V. and share identical core specifications including connector type, port count, mounting method, orientation, termination, shielding design with EMI finger, and contact materials. The extended operating temperature range of 6605841-1 (-40°C ~ 85°C vs. 0°C ~ 70°C) provides additional thermal capability without compromising compatibility. Packaging format differs but does not affect electrical or mechanical function.

Q: What are the key differences between JD1-0003NL and the main part 1-1840775-1?

A: JD1-0003NL differs in four primary areas: contact material (copper alloy vs. phosphor bronze), contact finish thickness (6.00µin vs. 50.0µin), shielding design (standard vs. EMI finger), and height above board (0.543" vs. 0.555"). These differences may impact long-term contact reliability, EMI performance, and PCB layout compatibility. Both parts support 10/100 Base-T and AutoMDIX applications with identical core functionality.

Q: Are all three parts RoHS compliant?

A: Yes. The main part 1-1840775-1 and direct substitute 6605841-1 are ROHS3 compliant. The alternative part JD1-0003NL is RoHS compliant. All three parts meet regulatory requirements for hazardous substance restrictions.

Q: Does packaging format affect electrical performance?

A: No. The packaging difference between 1-1840775-1 (standard packaging) and 6605841-1 (Tray packaging) is a logistics and handling consideration only. Electrical and mechanical specifications remain identical, and both parts are functionally equivalent.

Q: Which part should be selected for high-temperature applications?

A: Part 6605841-1 is specified for -40°C ~ 85°C operating temperature, making it suitable for applications requiring extended thermal performance. The main part 1-1840775-1 and JD1-0003NL are both specified for 0°C ~ 70°C. Selection depends on specific application temperature requirements.

Q: Is the reduced height of JD1-0003NL (0.543" vs. 0.555") a compatibility concern?

A: The 0.012" (0.30mm) height difference may affect PCB layout and clearance calculations. Design validation is required to confirm compatibility with existing board designs, component spacing, and mechanical constraints before substitution.