05.1
Samples
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LAN Transformer
WHSM24015T0 10GBASE-T PoE+ LAN Transformer
Single-port 10GBASE-T LAN transformer (Ethernet transformer): 24-pin SMD, 1500 Vrms isolation, PoE+ (up to 720 mA). Operating temperature −40 to +85 °C.
- Data rate
- 10GBASE-T
- Ports
- Single port
- Mounting
- SMD
- Isolation voltage
- 1500 Vrms
- PoE
- PoE+ (up to 720 mA)
- Operating temperature
- −40 to +85 °C
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Product Datasheet
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Support
3D Model
PCB Layout / Package
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01Specifications
WHSM24015T0 specifications
Key attributes
ParameterValue
Data rate
10GBASE-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.
WHSM24015T0Need samples, or a value that is not in this table? Ask our FAE team.
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02Applications
Where WHSM24015T0 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
WHSM24015T0Not sure it fits your PHY and layout? An engineer can check your design.
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03Documents
Datasheet, CAD and reports
-
WHSM24015T0 Datasheet (PDF)2025-08-18 · 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
WHSM24015T0Need 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
1.0 mm
1.0 mm
1.0 mm
Operating temperature
−40 to +85 °C
0 to +70 °C
0 to +70 °C
Isolation voltage
1500 Vrms
1500 Vrms
1500 Vrms
PoE
PoE+ (up to 720 mA)
PoE+ (up to 720 mA)
Not PoE rated
WHSM24015T0Not sure which part in the series fits? Ask our FAE team which one to sample.
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07FAQ
FAQ LAN Transformer: WHSM24015T0
WHSM 24015T0, WHAT EQUIPMENT
Fitrware temperature may fall at -40 & Deg; C to +85 & Deg; C Industrial 10G power port. The typical scenes are industrial exchanges, 10G power lines and wide temperature edges in outdoors. WHSM2415T0 is a single port 10G BASE-T transformer with specifications for PoE Support 30W. The port power supply budget is based on this level and does not rank higher. Note -40 & Deg; C is the working temperature of the device, which is not equal to the confirmed cryogenic and cold start of the whole machine, which still needs to be measured on the target Phy and cable.
HOW MUCH POWER DOES THE WHSM 24015T0 GO IN THE CENTER
Each magnetic channel supports 360 maA DC balance current, with two channels totalling 720 maA. 720 MA is not a 360 MA multiplied by the number of wires, but the total caliber of the port at the same time as the channel; the copper aluminum is designed to be equal to 360 MA per piece, and the width is calculated according to the actual copper thickness and the permitted temperature rise. The working temperature limit for WHSM2415T0 already contains the temperature increase of the device and is not superseded to the upper limit for the full-load budget.
WHSM 24015T0 AND WHSM 24015N0
Working temperature of
viewers: Require -40 & Deg; C to +85 & Deg; C select WHSM24015T0, 0 & Deg; C to +70 & Deg; C select WHSM2415N0, which is usually more advantageous in terms of cost and supply. The PoE caliber in both sections is fully consistent with the rest of the electrical block, and the temperature ceilings include the temperature of the device. The remodel does not change the electrical design.
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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- Founded in 2018
- Suzhou, China
- 1,500+ customers
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Typical application
