ARJ11B-MASBR-QU2 Shielded RJ45 modular jack with magnetics for 10/100 Base-T Ethernet. Features one through-hole port, gold contacts, and board lock.
Mfr Part #:

ARJ11B-MASBR-QU2

Available from 1 distributors
Mfr Name: Abracon LLC
Abracon LLC
Shielded RJ45 modular jack with magnetics for 10/100 Base-T Ethernet. Features one through-hole port, gold contacts, and board lock.
Total Stock: 493 pcs

ARJ11B-MASBR-QU2 Available from 1 distributor

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493 pcs
493 pcs On Request 1 On Request On Request 16+ On Request On Request

ARJ11B-MASBR-QU2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Connector Type
Contact Finish
Features
Height Above Board
Insertion Loss
LED Color
Lead Style
Mounting Type
Number of Cores per Jack
Number of Ports
Number of Rows
Operating Temperature
Orientation
Package Dimensions
Return Loss (Minimum @ 30 MHz)
Return Loss (Minimum @ 40 MHz)
Return Loss (Minimum @ 50 MHz)
Return Loss (Minimum @ 60–100 MHz)
Shielding
Storage Temperature
Tab Direction
Termination
Turns Ratio (@ RX)
Turns Ratio (@ TX)

ARJ11B-MASBR-QU2 Description

Short technical summary and product information.

ARJ11B-MASBR-QU2 is a single-port RJ45 modular jack with integrated magnetics from Abracon's ARJ11B series. Designed for 10/100 Base-T Ethernet applications, it supports AutoMDIX and meets IEEE 802.3 standards for LAN-on-Motherboard and SOHO networking equipment. The connector is shielded with EMI fingers and includes board locks for secure PCB mounting.

 

Key electrical specifications include a transmitter turns ratio of 1CT:1.414CT and a receiver turns ratio of 1CT:1CT. Maximum insertion loss is -1.0 dB across the frequency range, and minimum return loss is -18 dB at 30 MHz, -16 dB at 40 MHz, -12 dB at 50 MHz, and -10 dB from 60 to 100 MHz. The operating temperature range is 0°C to 70°C.

 

The right-angle orientation with a down tab and through-hole solder termination makes this jack suitable for standard PCB assembly. The connector's overall package dimensions are 16.26 x 13.84 x 21.59 mm, with a height above board of 13.84 mm. Gold contact finish ensures reliable connectivity.

 

This component is appropriate for Ethernet interfaces in routers, switches, hubs, and industrial control equipment where 10/100 Base-T performance is required. The integrated magnetics simplify layout by incorporating the transformer and common-mode termination into the connector.

ARJ11B-MASBR-QU2 Quick Information

Product Type: Modular Connector Jack with Magnetics
Series: ARJ11B
Canonical Name: RJ45 Modular Jack with Magnetics, Single Port, 10/100 Base-T, Through Hole
Subcategory: Modular Connector Jacks With Magnetics

ARJ11B-MASBR-QU2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1
REACH Status: REACH Unaffected

ARJ11B-MASBR-QU2 Features

  • Single port RJ45 jack with integrated magnetics.
  • Supports 10/100 Base-T and AutoMDIX.
  • Shielded with EMI fingers and board lock.
  • Through-hole solder termination, right-angle orientation.
  • Gold plated contacts for reliable connectivity.

ARJ11B-MASBR-QU2 Applications

  • Used in LAN-on-Motherboard (LOM) designs.
  • Ideal for SOHO network routers and modems.
  • Suitable for hubs and network switches.
  • Fits CAT 5 and CAT 6 Ethernet cabling.

ARJ11B-MASBR-QU2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the mounting type for the ARJ11B-MASBR-QU2?

Through hole with solder termination.

What are the turns ratios for this RJ45 jack?

The TX turns ratio is 1CT:1.414CT and the RX turns ratio is 1CT:1CT.

What is the maximum insertion loss?

The maximum insertion loss is -1.0 dB.

What is the return loss performance?

Minimum return loss is -18 dB at 30 MHz, -16 dB at 40 MHz, -12 dB at 50 MHz, and -10 dB from 60 to 100 MHz.

Does this component contain an LED?

No, it does not contain an LED.

What is the operating temperature range?

0°C to 70°C.

What is the orientation of this connector?

Right-angle (90°) with a down tab.

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