GST5009C LF / LP82455NL – 1000BASE-T Gigabit Ethernet Transformer
Key Features:
- Coil Number: 8
- Coil Structure: Toroidal
- Package: SMT, 24 Pins
- Type: Single-Port Gigabit Ethernet Transformer
- Applications: Optimized for 1000BASE-T full-duplex Ethernet, including long-haul transmission systems.
- Cable Support: Designed to support 4 pairs of Category 5 UTP cable for reliable gigabit data transfer.
- Performance Benefits: Provides cable interface isolation and ensures low common-mode emissions for stable operation.
- Standards Compliance:
- IEEE 802.3ab (1000BASE-T Gigabit Ethernet)
- IEEE 802.3af (PoE / Power over Ethernet)
- RoHS & Halogen-Free compliant
- Environmental Ratings:
- Operating Temperature: 0℃ to +70℃
- Storage Temperature: -25℃ to +85℃
Electrical Specifications (25°C):
Parameter | Test Condition | Value |
Turns Ratio | 50KHz, 0.5V | 1CT : 1CT ± 2% |
Inductance (Ls) | 100KHz, 0.1V, 12mA DC Bias | 350 µH Min |
Insertion Loss | 1–100 MHz | -1.4 dB Max |
Return Loss | 1–30 MHz | -16 dB Min |
Return Loss | 40 MHz | -14.4 dB Min |
Return Loss | 50 MHz | -13.1 dB Min |
Return Loss | 60–80 MHz | -12 dB Min |
Return Loss | 100 MHz | -10 dB Min |
Differential to Common Mode Rejection | 30 MHz | -45 dB Min |
Differential to Common Mode Rejection | 60 MHz | -40 dB Min |
Differential to Common Mode Rejection | 100 MHz | -35 dB Min |
Crosstalk | 30 MHz | -40 dB Min |
Crosstalk | 60 MHz | -35 dB Min |
Crosstalk | 100 MHz | -30 dB Min |
Hi-Pot Test | — | 1500 Vrms Min |
GST5009C LF SMD 1000Base-T Discrete LAN Magnetics Drawing:


Competitive Advantages:
- 100% tested for reliability and performance
- Backed by 2600+ professional staff
- Flexible delivery time to meet customer demands
- Proven compatibility with multiple networking platforms