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WHDG96504PTG Quad Ports DIP Gigabit Base-T PIN96 PoE LAN Transformer
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LAN Transformer

WHDG96504PTG Gigabit PoE+ LAN Transformer

Quad-port 10/100/1000BASE-T LAN transformer (Ethernet transformer): 96-pin DIP, 1500 Vrms isolation, PoE+ (up to 720 mA). Operating temperature −40 to +85 °C.

Data rate
10/100/1000BASE-T
Ports
Quad port
Mounting
DIP
Isolation voltage
1500 Vrms
PoE
PoE+ (up to 720 mA)
Operating temperature
−40 to +85 °C
WHDG96504PTG LAN Transformer perspective view

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01Specifications

WHDG96504PTG specifications

Key attributes

ParameterValue
Data rate 10/100/1000BASE-T
Ports Quad port
Operating temperature −40 to +85 °C
PoE PoE+ (up to 720 mA)
Mounting DIP
Pins 96
Pitch 2.0 mm

Electrical

ParameterValue
Isolation voltage 1500 Vrms

Values from published data for this part (parameters, FAQ and evaluation report). The datasheet prevails.

WHDG96504PTGNeed samples, or a value that is not in this table? Ask our FAE team. Get a Quote or Samples + Add to Inquiry

02Applications

Where WHDG96504PTG is used

  • Switches and routers
  • Wireless access points
  • IP cameras
  • Industrial control devices

Typical application

Ethernet PHYWHDG96504PTGRJ45 jackTD+1 TX+TD−2 TX−RD+3 RX+RD−6 RX−ESD / TVS (optional)TX · 1CT:1CTRX · 1CT:1CTCTCTPHY-side CT: bias per PHY typeR1 75 ΩR2 75 ΩC1 1000 pF / 2 kVBob Smith terminationShield to chassis

The transformer isolates the PHY from the cable and couples the TX and RX differential pairs to the RJ45 jack.

Center-tap biasing on the PHY side depends on the PHY type (voltage-mode or current-mode).

Typical application for reference. Follow the PHY vendor's reference design.

Design notes

  1. 01Connect the center taps according to your PHY type.Voltage-mode and current-mode PHYs need different center-tap biasing; a mismatch can break auto-negotiation.Check with your PHY →
  2. 02Terminate the line-side center taps with a Bob Smith network.It gives common-mode noise a defined path to chassis ground and helps EMC.
  3. 03Add line-side surge protection for outdoor or long-cable ports.Residual surge energy through the transformer can still damage the PHY.Troubleshooting guide →

Reference designs by application:Industrial ControlSecurity MonitoringData Communication

WHDG96504PTGNot sure it fits your PHY and layout? An engineer can check your design. Get a Quote or Samples + Add to Inquiry
  • WHDG96504PTG Datasheet (PDF)2024-11-25 · This part Download ↓
  • 3D model (STEP)2026-06-05 · This part Download ↓
  • PCB Layout / Package2025-12-29 · This part Download ↓
  • LAN Transformer Reliability TestLatest · Product family View →
  • LAN Transformer EU RoHS ReportLatest · Product family View →
  • REACH SVHC test reportLatest · Communication electronic components View →
WHDG96504PTGNeed another file format, or samples to test? Ask our FAE team. Get a Quote or Samples + Add to Inquiry

04Quality

Quality and compliance

DocumentNo.Issued / tested byDateApplies toActions
Certificate Certificate · Company ISO 9001:2015No. 19826Q02503R101 Quality management systemBeijing Xinjiyuan Certification Co., Ltd.Valid 2026-10-17 to 2029-10-16
19826Q02503R101 Beijing Xinjiyuan Certification Co., Ltd. Valid2026-10-17 to 2029-10-16 Company View PDF → Verify → Scope: R&D and sales of precision electronic connectors
Certificate Certificate · Company ISO 14001:2015No. 19826E01323R101 Environmental management systemBeijing Xinjiyuan Certification Co., Ltd.Valid 2026-10-17 to 2029-10-16
19826E01323R101 Beijing Xinjiyuan Certification Co., Ltd. Valid2026-10-17 to 2029-10-16 Company View PDF → Verify → Scope: R&D and sales of precision electronic connectors
Test report Test report · LAN transformers EU RoHSNo. WTH26H06190301C 2011/65/EU and (EU) 2015/863, 10 substancesWaltek Testing Group HCT (Shenzhen) Co., Ltd.Issued 2026-07-31
WTH26H06190301C Waltek Testing Group HCT (Shenzhen) Co., Ltd. Issued2026-07-31 LAN transformers View PDF →
Test report Test report · Communication electronic components REACH SVHCNo. WTH26H06167853C 253 substancesWaltek Testing Group HCT (Shenzhen) Co., Ltd.Issued 2026-07-01
WTH26H06167853C Waltek Testing Group HCT (Shenzhen) Co., Ltd. Issued2026-07-01 Communication electronic components View PDF →
Test report Test report · Product family Reliability test report
— — — Product family View PDF →

ISO certificates cover VOOHU's management systems. RoHS and REACH test reports cover tested samples of each product family.

05Ordering

Ordering and delivery

05.1

Samples

Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project.

Get a Quote or Samples →

06Compare

Same-series Comparison

Red marks values that differ from this part; data from the published parameters of each part.

Parameter WHDG96504PTGThis part WHDG96503PTG WHDG96503G
Data rate 10/100/1000BASE-T 10/100/1000BASE-T 10/100/1000BASE-T
Mounting DIP DIP DIP
Ports Quad port Quad port Quad port
Pins 96 96 96
Pitch 2.0 mm 2.0 mm 2.0 mm
Operating temperature −40 to +85 °C −40 to +85 °C 0 to +70 °C
Isolation voltage 1500 Vrms 1500 Vrms 1500 Vrms
PoE PoE+ (up to 720 mA) PoE+ (up to 720 mA) PoE (up to 350 mA)
WHDG96504PTGNot sure which part in the series fits? Ask our FAE team which one to sample. Get a Quote or Samples + Add to Inquiry

07FAQ

FAQ LAN Transformer: WHDG96504PTG

Are the WHDG96504PTG and the WHDG96503PTG interchangeable?

Mechanically yes, in orientation no. On the WHDG96504PTG pins 1–48 are the chip side, matching the WHDG96502PTG; on the WHDG96503PTG pins 1–48 are the cable side.

All three PTG parts share one 96-pin land pattern and one pin-numbering scheme, and only the side labelling splits into two camps. Before changing from one to another, check the chip-side and cable-side labels on each drawing rather than inferring from pin numbers.

Can the WHDG96504PTG be used on an IEEE 802.3bt port?

Not as an 802.3bt part. The WHDG96504PTG datasheet states IEEE 802.3at compliant performance with 720 mA current capability.

Type 3 and Type 4 under 802.3bt draw more current than the 802.3at class, and the figure cannot be extrapolated upward. A port running 802.3bt needs a device rated for that class; tell us the per-port current you are targeting and VOOHU will confirm the applicable scope against the current controlled document. Higher-current parts are listed in the 100/1000 BASE-T range.

What equipment suits the WHDG96504PTG?

Four-port Gigabit PoE+ equipment where the component temperature can reach -40 °C or +85 °C.

The WHDG96504PTG needs roughly a 28 × 29 mm square area on the PCB with more than 14.50 mm of clearance above it, and is a through-hole part assembled by wave soldering. All four ports have the same structure, four channels each, with cross talk between them held to -30 dB Min across 1–100 MHz. Other port counts sit in the 100/1000 BASE-T range.

08Support

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  • Founded in 2018
  • Suzhou, China
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