Magnetics & LAN Transformers

Magnetics & LAN Transformers provide galvanic isolation and signal integrity on the Ethernet link – as discrete transformers, integrated MagJacks or common-mode chokes. We supply magnetics from Bel Fuse with dimensioning advice.

What matters when selecting

Component type: LAN transformer (discrete), MagJack (integrated), common-mode choke, PoE transformer
Data rate: 10/100Base-T to 10GBase-T
Port count: 1 to over 4
PoE support: PoE/PoE+/PoE++ (802.3af/at/bt)
Package: SMD, THT or module

Part of the category Connectors, Circuit Protection & Magnetics.

12 products

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Product	Specifications	Availability	Datasheet	Price	Actions
Bel Stewart - 0826-1G1T-23-F / MagJack 1000BASE-T \| 1X1 \| G/G \| Tab Up \| RoHS 0826-1G1T-23-F Manufacturer: Bel StewartMPN: 0826-1G1T-23-F Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	3,60 € * Volume discount on request	Details
Bel Stewart - 0826-1X1T-43-F / MagJack 1000BASE-T \| 1X1 \| OG/Y \| Tab Up \| RoHS 0826-1X1T-43-F MPN: 0826-1G1T-23-F Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	3,22 € * Volume discount on request	Details
Bel Stewart - 0826-1X1T-GH-F / MagJack 1000BASE-T \| PoE+ \| 1X1 \| OG/Y \| -40 to 85ºC \| Tab Up \| RoHS 0826-1X1T-GH-F Manufacturer: Bel StewartMPN: 0826-1X1T-GH-F Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	4,13 € * Volume discount on request	Details
Bel Stewart - 08B0-1X1T-36-F / MagJack 10/100BASE-T \| 1X1 \| OG/Y LEDs \| Tap Up \| -40 to 85ºC \| RoHS 08B0-1X1T-36-F Manufacturer: Bel StewartMPN: 08B0-1X1T-36-F Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	2,36 € * Volume discount on request	Details
Bel Stewart - L829-1J1T-43 / MagJack 1000BASE-T \| 1X1 \| 3w-OG/Y \| Tab Up \| Low Profile \| RoHS L829-1J1T-43 Manufacturer: Bel StewartMPN: L829-1J1T-43 Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	2,89 € * Volume discount on request	Details
Bel Stewart - S811-1X1T-06-F / MagJack 10/100BASE-T \| 1X1 \| No LED \| Tab Down \| RoHS S811-1X1T-06-F Manufacturer: Bel StewartMPN: S811-1X1T-06-F Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	2,26 € * Volume discount on request	Details
Bel Stewart - SI-46001-F MagJack SI-46001-F Manufacturer: Bel StewartMPN: SI-46001-F 10/100BASE-T Number of Ports: 1x1 LED (Y/G) Operating Temp.: 0 to 70ºC	–	Lead time on request	PDF	2,19 € * Volume discount on request	Details
Bel Stewart - SI-46004-F MagJack SI-46004-F Manufacturer: Bel StewartMPN: SI-46004-F Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	2,19 € * Volume discount on request	Details
Bel Stewart - SI-46014-F MagJack SI-46014-F Manufacturer: Bel StewartMPN: SI-46014-F MagJack Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	PDF	2,19 € * Volume discount on request	Details
Bel Stewart - SI-52008-F MagJack SI-52008-F Manufacturer: Bel StewartMPN: SI-52008-F MagJack Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	2,67 € * Volume discount on request	Details
Bel Stewart - SI-60062-F MagJack SI-60062-F Manufacturer: Bel StewartMPN: SI-60062-F MagJack Low profile height, less than .400” off the PCB High speed capable, from 10/100BT up to 10GBT Can be used in low profile applications Can be used in half U height applications Compatible with up to OCP 3.0 mechanical card requirements Applicaitons Blade servers or cards Network Interface cards Laptop computers Storage systems Mezzanine cards Specifications Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters 100% hi-pot tested in production Comes with many different LED color combinations and options 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. Lead-free wave-solder compatible, with some IR reflow compatible designs UL recognized RoHS 6/6 compliant	–	Lead time on request	–	2,18 € * Volume discount on request	Details
Bel Stewart - V890-1AX1-A1 MagJack V890-1AX1-A1 Manufacturer: Bel StewartMPN: V890-1AX1-A1 MagJack Vertical mount configuration Available with POE compatibility Can be used on non-traditional PCB mount applications Forward compatible to 2.5G, 5G and 10G Includes options for two LEDs – yellow, green, orange, or bi-colors Single port configuration for 10/100BASE-T, 1GBASE-T, 2.5BASE-T & 10GBASE-T Ethernet Same mechanical package and footprint as existing passive vertical mount connectors Available circuit options: 10/100BASE-T, 1GBASE-T, 2.5BASE-T & 10GBASE-T Can be used on next generation PoE products where 30W of power is not enough Applications Single-board motherboards Industrial controllers Industrial PCs Daughter cards Printers	–	Lead time on request	–	2,95 € * Volume discount on request	Details

Frequently asked questions from developers and buyers

Discrete magnetics or MagJack?

Discrete transformers offer layout flexibility; a MagJack integrates everything into the jack and saves space.

Which data rate must the transformer support?

It must match the PHY speed (e.g. 1000Base-T, 10GBase-T). We choose to match the chipset.

Which PoE class?

The PoE requirement (802.3af/at/bt) determines the right transformer. We dimension it to the power class.

Do I get advice?

Yes – we support selection to match the PHY and layout. Request your project now

Contact: info@atlantikelektronik.com · +49 89 895050

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