TLA-8T104WLF-T TDK LAN Transformer 10/100BASE-TX Automotive SMD
The TLA-8T104WLF-T is an automotive-grade, surface-mount (SMD) LAN pulse transformer originally manufactured by TDK. Engineered specifically for 10/100BASE-TX Ethernet networks, this module ensures robust signal integrity and reliable network communication in demanding environments.
TLA-8T104WLF-T TDK Automotive-Grade LAN Transformer Overview:
The TLA-8T104WLF-T is an obsolete TDK automotive-grade LAN pulse transformer originally developed for 10/100BASE-TX Ethernet applications. Designed as a compact surface-mount Ethernet transformer, it provides 350 μH minimum inductance, 1CT:1CT turns ratio, 1500 Vrms isolation voltage, and compliance with AEC-Q200 reliability requirements for demanding automotive and industrial environments.
Although the original TDK part has reached end-of-life (EOL), many manufacturers continue to require a compatible replacement for legacy designs and long-life products. LINK-PP offers high-quality Ethernet transformer solutions with equivalent electrical performance, helping engineers maintain production without redesigning existing PCBs.
Whether you are maintaining automotive ECUs, industrial Ethernet equipment, embedded controllers, or networking devices, our compatible Ethernet transformers provide dependable performance, long-term availability, and technical support.
Key Features & Benefits
- Automotive Certified: Fully AEC-Q200 compliant, guaranteeing high reliability and performance under harsh thermal and mechanical stress.
- Optimized Signal Integrity: Features a standard 1CT:1CT turns ratio (for both TX and RX channels) and an insertion loss of ≤ 1 dB (0.1 to 100 MHz), ensuring clean data transmission.
- Robust Isolation: Provides 1500 Vrms isolation voltage (50 Hz for 1 minute), protecting sensitive ICs from electrical surges and ground loop noise.
- Standardized Inductance: Delivers a minimum inductance of 350 µH (at 100 kHz, 8 mA DC bias), meeting strict IEEE 802.3 standards for Fast Ethernet.
- Extreme Temperature Tolerance: Operates flawlessly in extreme conditions with a wide operating temperature range of -40°C to +85°C.
- Eco-Friendly: Fully RoHS compliant and REACH SVHC-Free.
Technical Specifications of 10/100BASE-TX TLA-8T104WLF-T Transformer
| Parameter | Specification |
|---|---|
| Part Number | TLA-8T104WLF-T |
| Product Type | Ethernet LAN Pulse Transformer |
| Ethernet Standard | 10/100BASE-TX |
| Transformer Type | Isolation Pulse Transformer |
| Package | Surface Mount (SMT) |
| Turns Ratio | 1CT:1CT (TX), 1CT:1CT (RX) |
| OCL (Open Circuit Inductance) | 350 μH Min. @100 kHz, 8 mA DC Bias |
| Isolation Voltage | 1500 Vrms, 50 Hz, 1 Minute |
| Insertion Loss | ≤1 dB (0.1–100 MHz) |
| Interwinding Capacitance | ≤30 pF |
| Operating Temperature | -40°C to +85°C |
| AEC-Q200 | Qualified |
| Compliance | RoHS, REACH SVHC-Free |
| Packaging | Embossed Tape & Reel |
| Reel Quantity | 1000 pcs |
| Unit Weight | Approx. 0.6 g |
TLA-8T104WLF-T LAN Transformer Mechanical Dimensions
The compact SMT footprint enables automated assembly while minimizing PCB space requirements for high-density networking products.
| Dimension | Value |
|---|---|
| Length (L) | 11.60 mm Max. |
| Width (W) | 6.50 ±0.20 mm |
| Height (H) | 5.90 mm Max. |
| Mounting | Surface Mount (SMT) |
Electrical Characteristics
The TLA-8T104WLF-T is engineered to meet the signal integrity requirements of IEEE 802.3 Fast Ethernet interfaces.
| Electrical Parameter | Value |
|---|---|
| Inductance | 350 μH Min. |
| Test Frequency | 100 kHz |
| DC Bias | 8 mA |
| Turns Ratio | 1CT:1CT |
| Insertion Loss | ≤1 dB |
| Frequency Range | 0.1–100 MHz |
| Interwinding Capacitance | ≤30 pF |
| Isolation Voltage | 1500 Vrms |
TLA-8T104WLF-T Datasheet
Applications of TLA-8T104WLF-T Automotive Ethernet Transformer
The TLA-8T104WLF-T is widely used in Fast Ethernet communication equipment requiring electrical isolation and signal conditioning.
Typical applications include:
- Automotive Ethernet gateways
- Vehicle infotainment systems
- Industrial Ethernet controllers
- PLC communication modules
- Network interface cards (NIC)
- Ethernet switches
- IP cameras
- Wireless access points
- Embedded networking devices
- IoT gateways
- Building automation systems
- Security equipment
- Medical networking devices
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