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WHSQ24015-1PG Single Port SMD 2.5G/5G PIN24 PoE+ Ethernet transformer
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LAN Transformer

WHSQ24015-1PG 2.5G/5GBASE-T PoE+ LAN Transformer

Single-port 2.5G/5GBASE-T LAN transformer (Ethernet transformer): 24-pin SMD, 1500 Vrms isolation, PoE+ (up to 720 mA). Operating temperature −40 to +85 °C.

Data rate
2.5G/5GBASE-T
Ports
Single port
Mounting
SMD
Isolation voltage
1500 Vrms
PoE
PoE+ (up to 720 mA)
Operating temperature
−40 to +85 °C
WHSQ24015-1PG LAN Transformer perspective view

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01Specifications

WHSQ24015-1PG specifications

Key attributes

ParameterValue
Data rate 2.5G/5GBASE-T
Ports Single port
Operating temperature −40 to +85 °C
PoE PoE+ (up to 720 mA)
Mounting SMD
Pins 24
Pitch 1.0 mm

Electrical

ParameterValue
Isolation voltage 1500 Vrms

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

WHSQ24015-1PGNeed samples, or a value that is not in this table? Ask our FAE team. Get a Quote or Samples + Add to Inquiry

02Applications

Where WHSQ24015-1PG is used

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

Typical application

Ethernet PHYWHSQ24015-1PGRJ45 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

WHSQ24015-1PGNot sure it fits your PHY and layout? An engineer can check your design. Get a Quote or Samples + Add to Inquiry
  • WHSQ24015-1PG Datasheet (PDF)2026-05-13 · This part Download
  • 3D model (STEP)2026-06-24 · This part Download
  • PCB Layout / Package2025-12-26 · 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
WHSQ24015-1PGNeed 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 WHSQ24015-1PGThis part WHSQ24002TG WHSQ24301G
Data rate 2.5G/5GBASE-T 2.5G/5GBASE-T 2.5G/5GBASE-T
Mounting SMD SMD SMD (low profile)
Ports Single port Single port Single port
Pins 24 24 24
Pitch 1.0 mm 1.0 mm 1.27 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) Not PoE rated Not PoE rated
WHSQ24015-1PGNot 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: WHSQ24015-1PG

WHSQ24015-1PG how much PoE load

Specify PoE Support 30W, each magnetic channel supports 720 ma DC balance curent. 720 MA is the capacity of a single central pump path, and the specifications do not print the totals of the entire channel and therefore cannot be multiplied by four to produce the total current of the port. Neither the IEEE 802.3 clause nor the PoE grade name are printed in the WHSQ24015-1PG specifications, 30 W is the formulation of this paragraph itself. Bronze is designed on a balanced basis of four paths per article 720 MA, and the copper width is calculated by the actual copper thickness and permitted temperature rise.

WHICH EQUIPMENT SHOULD WE CHOOSE

2.5G/5G equipment that requires work in the range -40 & Deg; C to +85 & Deg; C and which simultaneously requires power from the centre's head. WHSQ24015-1PG is a single-end, 24 PIN-based 2.5/5G BASE-T transformer with typical scenarios of multiple gigabytes of power, wide-temperature wireless access points and Internet camera ports in industry and outdoors. Note that -40 & Deg; C is the working temperature threshold for the device, which does not mean that the whole machine has been certified for cryogenic start, and that cryogenic uplifting is still measured on target PHY and cable.

WHSQ24015-1PG AND WHSQ24015G BOTH WRITE 30 W, HOW DO WE DISTINGUISH

Wats are the same, but different for each channel current: WHSQ24015-1PG for each magnetic channel 720 ma DC balance curent and WHSQ24015G for 350 ma. The temperature ranges for both sections are also different — — WHSQ24015-1PG Cover -40 & Deg; C to +85 & Deg; C, WHSQ24015G to 0 & Deg; C to +70 & Deg; C. See 30 W, this sentence does not represent the same current abundance in both paragraphs, and the selection should be based on the DC balance current instead of the watts per channel. A single-centre pump path may have a steady current of more than 350 mA, or a device should be selected for WHSQ24015-1PG if it is to be powered at 0 & dig; C below.

08Support

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  • VOOHU
  • Founded in 2018
  • Suzhou, China
  • 1,500+ customers
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