Product Details
Place of Origin: Guangdong,China
Brand Name: LINK-PP
Certification: UL,RoHS,Reach,ISO
Model Number: GST5009 LF
Document: LP82440ANL.pdf
Payment & Shipping Terms
Minimum Order Quantity: 400/2000/10K/25K
Price: $0.06-$0.5
Packaging Details: T&R
Delivery Time: Stock
Payment Terms: TT,NET30/60/90 Days
Supply Ability: 3KK/Month
Spec: |
GST5009 LF |
Substitute: |
LP82440ANL |
Turns Ratio: |
1CT : 1CT |
Size / Dimension: |
15.10mm L X 7.10mm W |
Hipot: |
1500V |
Samples: |
Free Available |
Package: |
24-Pin SOP / SMD |
Operating Temperature Range: |
0℃ To +70℃ |
Current: |
350mA |
ROHS & Halogen Free: |
Yes |
Spec: |
GST5009 LF |
Substitute: |
LP82440ANL |
Turns Ratio: |
1CT : 1CT |
Size / Dimension: |
15.10mm L X 7.10mm W |
Hipot: |
1500V |
Samples: |
Free Available |
Package: |
24-Pin SOP / SMD |
Operating Temperature Range: |
0℃ To +70℃ |
Current: |
350mA |
ROHS & Halogen Free: |
Yes |
| Parameter | Specification | Engineering Significance |
|---|---|---|
| Ethernet Speed | 100/1000 BASE-T (Gigabit) | Full-duplex compliance per IEEE 802.3af and ANSI X3.263 |
| PoE Compatibility | IEEE 802.3af (350 mA Current) | Dedicated line-side center taps (MCT1–MCT4) for DC power injection |
| Package Height | 4.00 mm [0.157 in] (Ultra-Low Profile) | Perfect fit for 1U blade servers, slim routers, and PCIe daughter cards |
| Package / Pinout | 24-Pin SOP Surface Mount (SMD) | Standard 1.00 mm pin pitch for high-yield automated SMT pick-and-place |
| Turns Ratio | 1CT : 1CT (±5%) (All 4 Pairs) | Symmetrical topology compatible with voltage-mode & current-mode PHYs |
| Inductance (OCL) | 350 µH Min. (@ 100 kHz, 0.1 V, 8 mA DC) | High saturation resistance under continuous DC unbalanced current |
| Insertion Loss | -1.0 dB Max. (1 ~ 100 MHz) | Exceptional transmission efficiency with minimal signal attenuation |
| Return Loss (100 Ω) | -18.0 dB Min. (1 ~ 30 MHz) | Exceeds industry standards to minimize high-frequency reflections |
| Cross Talk Attenuation | -45 dB Min. (@ 30 MHz) | Superior channel-to-channel isolation preventing packet cross-coupling |
| Hi-Pot Isolation | 1500 Vrms Minimum | Certified galvanic boundary protecting core silicon from cable transients |
| Parameter | Test Condition | Specification Limit |
|---|---|---|
| Turns Ratio (TX & RX) | 100 kHz, 0.1 V | 1CT : 1CT (±5%) |
| Open Circuit Inductance (OCL) | 100 kHz, 0.1 V, 8 mA DC Bias | 350 µH Minimum |
| Current Capability | Line-Side Continuous Current | 350 mA (IEEE 802.3af PoE) |
| Insertion Loss | 1 ~ 100 MHz | -1.0 dB Maximum |
| Return Loss (100 Ω Load) | 1 ~ 30 MHz | -18.0 dB Minimum |
| Return Loss (100 Ω Load) | 40 MHz | -14.4 dB Minimum |
| Return Loss (100 Ω Load) | 50 MHz | -13.1 dB Minimum |
| Return Loss (100 Ω Load) | 60 ~ 80 MHz | -12.0 dB Minimum |
| Return Loss (100 Ω Load) | 100 MHz | -10.0 dB Minimum |
| Cross Talk Attenuation | 30 MHz | -45.0 dB Minimum |
| Cross Talk Attenuation | 60 MHz | -40.0 dB Minimum |
| Cross Talk Attenuation | 100 MHz | -35.0 dB Minimum |
| Differential to Common Mode (DCMR) | 30 MHz | -40.0 dB Minimum |
| Differential to Common Mode (DCMR) | 60 MHz | -35.0 dB Minimum |
| Differential to Common Mode (DCMR) | 100 MHz | -30.0 dB Minimum |
| Dielectric Hi-Pot (Isolation) | 60 Seconds (Primary to Secondary) | 1500 Vrms Minimum |
| Operating Temperature Range | Ambient | 0°C to +70°C |
| Storage Temperature Range | Non-Operating | -25°C to +85°C |
| Parameter | Specification |
|---|---|
| Body Dimensions | 15.10 mm [0.594 in] × 7.10 mm [0.280 in] |
| Total Outer Span | 10.00 mm [0.394 in] |
| Module Height | 4.00 mm [0.157 in] Max. |
| Pin Pitch | 1.00 mm [0.039 in] |
| Span Across 12 Pins | 11.00 mm [0.433 in] |
| Coplanarity | ≤0.10 mm [0.004 in] |
| Suggested PCB Solder Land Pattern — Pad Width | 0.60 mm [0.024 in] |
| Suggested PCB Solder Land Pattern — Pad Length | 1.35 mm [0.053 in] |
| Inner Pad Row Distance | 8.00 mm [0.315 in] |
| Outer Pad Row Span | 10.70 mm [0.421 in] |
Answer: Yes. The GST5009 LF is fully compliant with IEEE 802.3af standards, supporting up to 350 mA continuous balanced DC current via dedicated center taps (Pins 15, 18, 21, and 24). It is engineered for PoE Powered Devices (PD) and Power Sourcing Equipment (PSE) operating up to 15.4 W.
Answer: Direct 100% pin-for-pin drop-in replacements include the LINK-PP LP82440ANL (which offers an upgraded -40°C to +85°C industrial temperature range), Pulse Electronics H5008NL / HX5008NL, and Würth Elektronik 749020011. All share the 24-pin SOP footprint, 4.0 mm height, and 1CT:1CT turns ratio.
Answer: Standard RJ45 integrated connectors (Magjacks) require 13.5 mm to 16 mm of vertical space. The 4.00 mm height of the GST5009 LF allows network hardware engineers to fit high-density Gigabit Ethernet magnetics into compact 1U telecom racks, low-profile PCIe cards, and ultra-slim embedded IoT enclosures.
