Skip to main content
WHSQ24302G Single Port SMD(Low height) 2.5G/5G PIN24 non-PoE LAN Transformer
Homepage   /   Products
LAN Transformer

WHSQ24302G 2.5G/5GBASE-T LAN Transformer

Single-port 2.5G/5GBASE-T LAN transformer (Ethernet transformer): 24-pin SMD (low profile), 1500 Vrms isolation, not PoE rated. Operating temperature 0 to +70 °C.

Data rate
2.5G/5GBASE-T
Ports
Single port
Mounting
SMD (low profile)
Isolation voltage
1500 Vrms
PoE
Not PoE rated
Operating temperature
0 to +70 °C
WHSQ24302G LAN Transformer perspective view

When you click Get a Quote or Samples or Add to Inquiry, part number WHSQ24302G is filled in automatically.

Request a Quote

Leave your details and we will send a tailored volume quote.

Our sales team will contact you within 1 business day.

Contact Sales

Reach our sales team for pricing and lead time.

Contact Sales
Sales Hotline: +86 133 3865 5578
Email: voohu@voohuele.com
✓

Submitted

We have received your request. Our sales team will contact you within 1 business day.

01Specifications

WHSQ24302G specifications

Key attributes

ParameterValue
Data rate 2.5G/5GBASE-T
Ports Single port
Operating temperature 0 to +70 °C
PoE Not PoE rated
Mounting SMD (low profile)
Pins 24
Pitch 1.27 mm

Electrical

ParameterValue
Isolation voltage 1500 Vrms

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

WHSQ24302GNeed samples, or a value that is not in this table? Ask our FAE team. Get a Quote or Samples + Add to Inquiry

02Applications

Where WHSQ24302G is used

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

Typical application

Ethernet PHYWHSQ24302GRJ45 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

WHSQ24302GNot sure it fits your PHY and layout? An engineer can check your design. Get a Quote or Samples + Add to Inquiry
  • WHSQ24302G Datasheet (PDF)2024-11-25 · This part Download ↓
  • 3D model (STEP)2026-06-24 · 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 →
WHSQ24302GNeed 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 WHSQ24302GThis part WHSQ24301G WHSQ24701G
Data rate 2.5G/5GBASE-T 2.5G/5GBASE-T 2.5G/5GBASE-T
Mounting SMD (low profile) SMD (low profile) SMD
Ports Single port Single port Single port
Pins 24 24 24
Pitch 1.27 mm 1.27 mm 1.27 mm
Operating temperature 0 to +70 °C 0 to +70 °C 0 to +70 °C
Isolation voltage 1500 Vrms 1500 Vrms 1500 Vrms
PoE Not PoE rated Not PoE rated Not PoE rated
WHSQ24302GNot 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: WHSQ24302G

How tall is the WHSQ24302G, and will it fit a height-restricted board?

The WHSQ24302G stands 2.50 mm tall at most, over a 16.60 mm × 9.00 mm body, which makes it one of the low-profile packages in the single-port 2.5G/5G range. The conventional 24-pin package at the same data rate is 6.00 mm tall, more than double, so where a lid clearance is fixed, or the part has to sit between a daughter card and a backplane, a low-profile part is often the only one that fits.

The trade-off is a standoff of only 0.05 mm typical, so the WHSQ24302G sits almost flat against the board, leaving little room for post-reflow cleaning and little viewing angle for inspection. Confirm both against the line process when selecting it. Other options are listed in the 2.5G/5G BASE-T range.

Does the WHSQ24302G support PoE?

No. The datasheet of the WHSQ24302G assigns no DC balance current capability to the centre taps – there is no current item among its eleven electrical entries, so the taps cannot be used as a supply path. Terminate the centre taps as the reference design for the target PHY requires.

Note that the single-port 2.5G/5G parts which do publish PoE current, the WHSQ24702-1PTG and the WHSQ24706-2PTG, sit in the taller conventional package rather than the low-profile outline of the WHSQ24302G, so moving to one of them means redoing the layout. Where a port is both height-constrained and has to deliver power, send VOOHU the height limit, the steady current expected in each centre-tap path and the temperature range.

How many pieces are on a reel of the WHSQ24302G?

A reel of the WHSQ24302G holds 1500 pcs on a Ø330 mm reel. The conventional 24-pin package at the same data rate holds 350 pcs on a reel of the same diameter, so the thinner low-profile body carries more than three times as many parts per reel. That changes how often the line reloads and how a small pilot build is stocked.

Confirm inner and export carton quantities against the order. The carrier tape and reel dimensions are printed in full on the WHSQ24302G datasheet and can be handed straight to placement programming.

08Support

Talk to an engineer

REQUEST TYPE

Choose a Request Type and Fill in the Fields

WHSQ24302G

Choose a type, fill in the fields, and leave your contact details. Enter "Not sure" for any unknown parameter.

Contact Details

Have attachments? Send datasheets, BOMs, or drawings to voohu@voohu.cn with your name and company, and our engineers will handle them together with this request.

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