05.1
Samples
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LAN Transformer
WHSM24706-2PG 10GBASE-T 4PPoE LAN Transformer
Single-port 10GBASE-T LAN transformer (Ethernet transformer): 24-pin SMD, 1500 Vrms isolation, 4PPoE (up to 1200 mA). Operating temperature 0 to +70 °C.
- Data rate
- 10GBASE-T
- Ports
- Single port
- Mounting
- SMD
- Isolation voltage
- 1500 Vrms
- PoE
- 4PPoE (up to 1200 mA)
- Operating temperature
- 0 to +70 °C
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01Specifications
WHSM24706-2PG specifications
Key attributes
ParameterValue
Data rate
10GBASE-T
Ports
Single port
Operating temperature
0 to +70 °C
PoE
4PPoE (up to 1200 mA)
Mounting
SMD
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.
WHSM24706-2PGNeed samples, or a value that is not in this table? Ask our FAE team.
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02Applications
Where WHSM24706-2PG is used
- Switches and routers
- Wireless access points
- IP cameras
- Industrial control devices
Typical application
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
- 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 →
- 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.
- 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
WHSM24706-2PGNot sure it fits your PHY and layout? An engineer can check your design.
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03Documents
Datasheet, CAD and reports
-
WHSM24706-2PG 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 ↓
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LAN Transformer Reliability TestLatest · Product family View →
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LAN Transformer EU RoHS ReportLatest · Product family View →
-
REACH SVHC test reportLatest · Communication electronic components View →
WHSM24706-2PGNeed another file format, or samples to test? Ask our FAE team.
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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 →
ISO certificates cover VOOHU's management systems. RoHS and REACH test reports cover tested samples of each product family.
05Ordering
Ordering and delivery
06Compare
Same-series Comparison
Red marks values that differ from this part; data from the published parameters of each part.
Data rate
10GBASE-T
10GBASE-T
10GBASE-T
Mounting
SMD
SMD
SMD
Ports
Single port
Single port
Single port
Pins
24
24
24
Pitch
1.27 mm
1.0 mm
1.0 mm
Operating temperature
0 to +70 °C
0 to +70 °C
0 to +70 °C
Isolation voltage
1500 Vrms
1500 Vrms
1500 Vrms
PoE
4PPoE (up to 1200 mA)
4PPoE (up to 2000 mA)
PoE+ (up to 720 mA)
WHSM24706-2PGNot sure which part in the series fits? Ask our FAE team which one to sample.
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07FAQ
FAQ LAN Transformer: WHSM24706-2PG
How much PoE load can the WHSM24706-2PG carry?
The WHSM24706-2PG is rated PoE Support 60W, with 1200 mA of DC balance current per magnetic channel and 2400 mA across full channels. The 2400 mA figure is what the port carries with its two channels working together – not the rating of any single centre-tap path, and not 1200 mA multiplied by the coil count.
Size four balanced copper paths against 1200 mA each, taking the width from your actual copper thickness and permitted rise. Both figures are per VOOHU's current controlled documents.
The WHSM24706-2PG is stored from -25 °C to +125 °C — can it operate over that range?
No. The WHSM24706-2PG operates from 0 °C to +70 °C; the -25 °C to +125 °C figure is its non-powered storage range only. A wide storage range says the part survives a larger temperature span while unpowered, which is a different thing from electrical performance and service life under power.
Design the thermal budget and the cold power-up case against 0 °C to +70 °C. If the equipment must power up below 0 °C, move to a wide-temperature part whose operating range reaches -40 °C; the choices are listed in the 10G BASE-T range.
The WHSM24706-2PG and WHSM24P02-1PG are both single-port 10G PoE parts — how do I choose?
Choose on how much current each centre-tap path has to carry: the WHSM24706-2PG supports 1200 mA per magnetic channel and the WHSM24P02-1PG supports 720 mA. Both figures use the same scope – DC balance current per magnetic channel – so they compare directly.
The PoE positioning differs too: PoE Support 60W on the WHSM24706-2PG, IEEE 802.3at compliant performance on the other part. Little else separates them: both operate from 0 °C to +70 °C and share the same 10G electrical block, so the choice comes down to supply capability.
08Support
Talk to an engineer
01Replace your current partSend the part number you use today. An engineer compares pinout, package and electrical ratings and lists the differences.Start a replacement review →
02Match it to your PHYTell us your PHY. We check center-tap wiring, termination and the matching RJ45 jack.Check my design →
03Link drops, hi-pot or EMC failuresSend the symptoms and test conditions. Get an FAE-reviewed troubleshooting checklist.Start troubleshooting →
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- VOOHU
- Founded in 2018
- Suzhou, China
- 1,500+ customers
- FAE support
Typical application
