The 0826-1K1T-23-F is a premium single-port Integrated Connector Module (ICM), widely recognized under the MagJack® series. Engineered for high-speed network communication, it fully supports 10/100/1000 Base-T (Gigabit Ethernet) applications.
Designed with a Tab Up orientation and Through-Hole Technology (THT) mounting, this horizontal/right-angle RJ45 connector integrates 12-core internal magnetics. By combining the isolation transformer, common-mode chokes, and the RJ45 jack into a single shielded housing, the 0826-1K1T-23-F significantly reduces PCB real estate, simplifies layout, and minimizes EMI radiation. It is the go-to networking component for hardware designers, OEM manufacturers, and EMS providers demanding high reliability and robust signal integrity.
- Complies with IEEE 802.3 specification
- High performance for maximum EMI suppression
- Suitable for 100 Base-TX KVM Over IP Switch applications
- Embedded mini PCI Express Cellular modem from Sierra Wireless
- Certified with ISO9001, SGS, UL, CE, REACH
- Certified on all major carrier networks, ideal for industrial motherboards
1. General & Environmental Parameters
| Part Number |
0826-1K1T-23-F |
| Product Type |
Gigabit MagJack (Magnetic RJ45 Connector) |
| Data Rate |
10/100/1000 Base-T (Gigabit Ethernet) |
| Configuration / Orientation |
1 Port (8P8C) / Tab Up / Right-Angle (Horizontal) |
| Internal Magnetics |
12 Cores Included |
| Certifications |
UL Recognized (File #E196366 & E169987), RoHS Compliant |
2. Electrical & Magnetic Characteristics (@ 25°C)
| Turns Ratio (TP1-TP4) |
1CT : 1CT ±2% |
| Inductance (OCL) |
350µH MIN. (@ 100kHz / 100mVRMS, 8mA DC BIAS) |
| HiPot (Isolation Voltage) |
1500 Vrms or 2250 VDC |
| Insertion Loss |
0.1-1MHz: -1.1dB MAX | 1-65MHz: -0.5dB MAX | 65-100MHz: -0.8dB MAX | 100-125MHz: -1.2dB MAX |
| Return Loss (MIN) |
0.5-40MHz: -18dB | 40-100MHz: -12 + 20LOG(f/80MHz) dB |
| CM to CM Rejection |
-30 dB MIN (100kHz to 100MHz) |
| CM to DM Rejection |
-35 dB MIN (100kHz to 100MHz) |
3. LED Specifications
| Left LED 2 (Pins 15/16) |
Bi-Color (Green/Yellow) |
Yellow: 2.1V / Green: 2.2V TYP (@ 20mA) |
Yellow: 590nm / Green: 565nm TYP |
| Right LED 1 (Pins 13/14) |
Green |
2.2V TYP (@ 20mA) |
565nm TYP |
4. Mechanical & Material Specifications
| Plastic Housing |
Thermoplastic PA 4/6, UL 94V-0 Flammability Rating |
| Contacts |
50 Micro-Inch Hard Gold Plating |
| Output Pins |
Tin-Coated Copper Wire, Dia 0.018 Inch |
| Metal Shield |
Nickel Plated on Copper Alloy (Solder-dipped ground leads) |
| Dimensions (L x W x H) |
1.300" (33.02mm) x 0.642" (16.31mm) x 0.536" (13.61mm) |
0826-1K1T-23-F RJ45 Connector Datasheet



Key Features of 0826-1K1T-23-F Gigabit MagJack
1. Superior Signal Integrity & Electrical Performance
- Gigabit Magnetics: Features an integrated 12-core magnetic design with a minimum OCL of 350µH (at 8mA DC bias), ensuring seamless data transmission for 1000 Base-T networks.
- High Isolation Protection: Provides 1500 Vrms (or 2250 VDC) HiPot isolation, protecting sensitive downstream PHY transceivers from voltage spikes and ground loops.
- Optimized EMI Mitigation: Delivers excellent Common Mode to Differential Mode Rejection (-35 dB MIN) and features a nickel-plated copper alloy shield for superior electromagnetic compatibility.
2. High-Reliability Mechanical Design
- Premium Contact Plating: Features 50 Micro-Inch Hard Gold Plating on the contacts, significantly exceeding standard industrial requirements and ensuring long-term reliability in high mating-cycle environments.
- Robust Housing: Constructed from UL 94V-0 rated Thermoplastic PA 4/6, offering excellent thermal stability during wave soldering and operation.
- Integrated Diagnostics: Built-in LEDs (Left: Bi-Color Green/Yellow, Right: Green) provide immediate visual feedback for link status and network speed, reducing external BOM count.
3. Supply Chain & Compliance Advantages
- Global Compliance: Fully RoHS compliant (Per EU Directive 2002/95/EC) and UL Recognized (File #E196366 and E169987), ensuring your end-product passes global regulatory certifications smoothly.
- Standardized Packaging: Shipped in robust tray packaging (40 pcs/tray, 400 pcs/carton), optimized for automated pick-and-place and EMS assembly lines.
Applications of 0826-1K1T-23-F Integrated Connector Module
The 0826-1K1T-23-F is widely deployed in hardware architectures requiring Gigabit speeds:
- Networking Equipment: Enterprise switches, routers, and broadband gateways.
- Industrial IoT: Industrial PCs (IPCs), PLCs, and automation control systems.
- Telecom & Datacom: Base stations, servers, and media converters.
- Consumer/Prosumer IT: Motherboards, NAS devices, and smart home hubs.
Q&As
Q: What is the network speed supported by the 0826-1K1T-23-F?
A: This MagJack module fully supports 10/100/1000 Base-T network speeds, commonly referred to as Gigabit Ethernet.
Q: Does the 0826-1K1T-23-F have internal magnetics?
A: Yes, it is an Integrated Connector Module (ICM) that includes a 12-core internal magnetic circuit with a 350µH minimum OCL (at 8mA DC Bias).
Q: What is the gold plating thickness on the contacts?
A: The contacts feature 50 micro-inch hard gold plating, providing exceptionally high durability and corrosion resistance for industrial applications.
Q: How are the LEDs configured on this RJ45 connector?
A: Looking at the front of the jack, the Left LED (Pins 15/16) is a Bi-Color Green/Yellow LED, and the Right LED (Pins 13/14) is a single-color Green LED.
Q: What is the orientation of this connector?
A: It is a horizontal, right-angle, through-hole (THT) connector with a "Tab Up" configuration (the locking tab of the Ethernet cable points upwards).
Q: Is the 0826-1K1T-23-F UL recognized and RoHS compliant?
A: Yes, it is RoHS compliant per EU Directive 2002/95/EC and is UL Recognized under File #E196366 and E169987.