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.
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Network Connector (RJ45/RJ11)
WH52B388121101 RJ45 Jack without Magnetics
3-port (1 × 3) vertical RJ45 jack: tab up, no LEDs, through-hole (DIP), no integrated magnetics (use it with a LAN transformer). Rated −40 to +85 °C.
- Orientation
- 180° (vertical)
- Ports
- 1 × 3
- Tab
- Up
- LED
- No
- Integrated magnetics
- No
- Operating temperature
- −40 to +85 °C
Left click: Rotate | Right click: Pan | Scroll: Zoom
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01Specifications
WH52B388121101 specifications
ParameterValue
Orientation
180° (vertical)
Ports
1 × 3
Tab
Up
LED
No
Integrated magnetics
NoUse it with an external LAN transformer
Data rate
Not limited by the jackSet by the external LAN transformer
PoE
Not PoE rated
Mounting
DIP
Shield tabs
No
EMI gasket
No
Operating temperature
−40 to +85 °C
Values from published data for this part (parameters, FAQ and evaluation report). The datasheet prevails.
WH52B388121101Need samples, or a value that is not in this table? Ask our FAE team.
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02Applications
Where WH52B388121101 is used
- Switches and routers
- Industrial controllers
- IP cameras and NVRs
- Embedded boards
Typical application
A jack without magnetics passes the signals straight to the cable; the LAN transformer between the PHY and the jack provides isolation and common-mode termination.
Match the jack's tab orientation and LED pins to your enclosure and the PHY's LED outputs.
Typical application for reference. Follow the PHY vendor's reference design.
Design notes
- 01Check tab orientation and LED positions against the enclosure opening.Tab Up / Tab Down and LED placement are the most common selection errors for RJ45 jacks.Check my layout →
- 02Bond the shield to chassis ground according to your grounding scheme.A floating or poorly bonded shield can make radiated emissions worse.EMC troubleshooting →
- 03For PoE or isolation, the magnetics decide — not the jack.A jack without magnetics provides neither PoE nor isolation by itself; choose a PoE-rated LAN transformer or a jack with integrated PoE magnetics.See LAN transformers →
Reference designs by application:Industrial ControlSecurity MonitoringData Communication
WH52B388121101Not sure it fits your PHY and layout? An engineer can check your design.
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+ Add to Inquiry
03Documents
Datasheet, CAD and reports
-
WH52B388121101 Datasheet (PDF)2026-05-14 · This part Download ↓
-
3D model (STEP)2026-05-14 · This part Download ↓
-
RJ45 Connector Reliability TestLatest · Product family View →
-
RJ45 EU RoHS ReportLatest · Product family View →
-
REACH SVHC test reportLatest · Communication electronic components View →
WH52B388121101Need 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 · RJ45 connectors
EU RoHSNo. WTH26H08256842R1C
2011/65/EU and (EU) 2015/863, 10 substancesWaltek Testing Group HCT (Shenzhen) Co., Ltd.Issued 2026-09-24
WTH26H08256842R1C
Waltek Testing Group HCT (Shenzhen) Co., Ltd.
Issued2026-09-24
RJ45 connectors
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.
Orientation
180° (vertical)
90° (right angle)
90° (right angle)
Ports
1 × 3
1 × 3
2 × 8
Tab
Up
Up
Up/Down
Integrated magnetics
No
No
No
Data rate
Not limited by the jack
Not limited by the jack
Not limited by the jack
PoE
Not PoE rated
Not PoE rated
Not PoE rated
LED
No
Yellow / Green
Yellow / Green
Mounting
DIP
DIP
DIP
Shield tabs
No
Yes
Yes
EMI gasket
No
Yes
No
Operating temperature
−40 to +85 °C
−40 to +85 °C
−40 to +85 °C
WH52B388121101Not sure which part in the series fits? Ask our FAE team which one to sample.
Get a Quote or Samples
+ Add to Inquiry
07FAQ
WH52B388121101 FAQ
Does WH52B388121101 have integrated magnetics?
No. WH52B388121101 is an RJ45 jack without magnetics.
Place a LAN transformer between the PHY and the jack, or choose an RJ45 jack with integrated magnetics if board space is tight. Data rate and PoE capability are then set by the transformer.
What does Tab Up mean for WH52B388121101?
Tab Up describes where the latch sits relative to the PCB.
With Tab Up the latch faces away from the board; with Tab Down it faces the board. Choose the orientation that matches your enclosure opening and LED placement, and check the mirrored pinout before swapping one for the other.
How do I get samples of WH52B388121101?
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.
Use the form below; the part number is filled in automatically.
08Support
Talk to an engineer
01Replace your current partSend the part number you use today. An engineer compares footprint, tab orientation, LEDs and shielding, and lists the differences.Start a replacement review →
02Match LEDs, tab and footprintSend your enclosure drawing and PHY. We check tab orientation, LED pins and the footprint.Check my layout →
03Port damaged after surge or ESDSend the symptoms and test level. Get an FAE-reviewed protection checklist.Start troubleshooting →
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- VOOHU
- Founded in 2018
- Suzhou, China
- 1,500+ customers
- FAE support
Typical application
