TM82440ANL 24-Pin SMT Gigabit LAN Magnetics Support AutoMDIX
TM82440ANL LAN Transformer single-port 1GBase-T Gigabit Ethernet magnetics module. 24-pin SMT package with 1500Vrms isolation, low insertion loss and −40°C to +85°C operating range.
Key Specifications of TM82440ANL 1GBase-T Ethernet Transformer
| Parameter | Specification |
|---|---|
| Part Number | TM82440ANL |
| Ethernet Speed | 1000Base-T |
| Number of Ports | Single Port |
| Package Type | 24-Pin SMT |
| Mounting Type | Surface Mount |
| Isolation Voltage | 1500Vrms |
| Operating Temperature | −40°C to +85°C |
| RoHS Compliance | Yes |
TM82440ANL LAN Transformer Description:
The TM82440ANL LAN Transformer is a single-port 1GBase-T Ethernet transformer module designed for Gigabit Ethernet PHY interfaces. This 24-pin surface-mount LAN magnetics module provides reliable signal isolation, excellent EMI suppression, and stable electrical performance for high-speed Ethernet networks.
With a standard industry footprint, the TM82440ANL is compatible with many common Gigabit LAN transformer designs, allowing easy PCB integration and simplified Ethernet interface design.
Designed for industrial and networking equipment, the transformer operates over a wide temperature range from −40°C to +85°C, making it suitable for demanding environments such as industrial automation systems and communication infrastructure.
Key Features
- Designed for 1GBase-T Gigabit Ethernet
- Single-port LAN transformer
- 24-pin SMT package
- Compatible with industry-standard LAN transformer footprints
- Supports Auto-MDIX capable Ethernet PHYs
- Low insertion loss for high-speed signal integrity
- 1500Vrms isolation
- Wide industrial operating temperature −40°C to +85°C
- RoHS compliant
Electrical Characteristics (@25°C)
| Parameter | Frequency / Condition | Specification |
|---|---|---|
| OCL (Inductance) | 100kHz, 0.1V, 8mA DC Bias | ≥ 350 µH |
| Turns Ratio (TX) | — | 1CT : 1CT ±5% |
| Turns Ratio (RX) | — | 1CT : 1CT ±5% |
| Leakage Inductance (LL) | — | ≤ 0.4 µH |
| DC Resistance (DCR) | — | ≤ 1.2 Ω |
| Insertion Loss | 1 – 100 MHz | ≤ −1 dB |
| Return Loss | 1 – 40 MHz | ≥ 16 dB |
| Return Loss | 40 – 100 MHz | ≥ 10 + 20 log(f/80) dB |
| Crosstalk | 30 MHz | ≥ −45 dB |
| Crosstalk | 60 MHz | ≥ −40 dB |
| Crosstalk | 100 MHz | ≥ −35 dB |
| Differential-to-Common Mode Rejection (DCMR) | 30 MHz | ≥ −40 dB |
| Differential-to-Common Mode Rejection (DCMR) | 60 MHz | ≥ −35 dB |
| Differential-to-Common Mode Rejection (DCMR) | 100 MHz | ≥ −30 dB |
| Isolation Voltage (Hi-Pot) | — | 1500 Vrms |
TM82440ANL Drawing:
1. TM82440ANL Electrical Drawings
2. TM82440ANL Mechanical Drawings
3. TM82440ANL Drawing - Pad Layout
4. TM82440ANL Drawing - Profile of Reflow Solder
- Preheat:Temperature (Ta-Tb): 150-200°CTime (T1-T2): 60-180s
- Holding Temperature: 217°CTime (TL): 60-150s
- Max Temperature (Tp): 250(0/-5°C)Max Time (Tp): 5s
- The average speed: 3°C/S MaxThe average cooling speed: 6°C/S Max
- From 25°C to Products out of the furnace: 6 minutes Max
Typical Applications:
The TM82440ANL Gigabit LAN transformer is widely used in Ethernet networking equipment, including:
- Industrial automation systems
- Ethernet switches
- Routers
- Hubs
- Wireless access points
- Servers
- Network interface cards (NIC)
- Communication systems
- Digital consumer networking devices
Its industrial temperature range makes it particularly suitable for industrial networking equipment and communication infrastructure.
FAQs About TM82440ANL LAN Transformer
1. What is a LAN transformer used for?
A LAN transformer provides electrical isolation, impedance matching, and noise suppression between the Ethernet PHY and the network cable, ensuring reliable data transmission in Ethernet networks.
2. What Ethernet speed does TM82440ANL support?
The TM82440ANL is designed for 1GBase-T (1000Base-T) Gigabit Ethernet applications.
3. Does TM82440ANL support industrial environments?
Yes. With an operating temperature range of −40°C to +85°C, it is suitable for industrial networking equipment.
4. What isolation voltage does it provide?
The transformer provides 1500Vrms isolation, meeting Ethernet safety and signal integrity requirements.
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