Two mouths on one body — how do I keep the pair routing from crossing underneath?

Bring each port's pairs straight back from its own tails and let the two groups run parallel rather than crossing. The mouths are far enough apart that there is room, provided you do not try to share a via field. If the board is tight, escape the inner port first, then fit the outer one's pairs around it.

The table still lists a one to one turns ratio — what does that mean with no magnetics fitted?

It describes the module we recommend for this jack, not something inside the shell. Because the part is a passive connector, the ratio column is there so a reader can pick a matching transformer without hunting through another document. Confirm the recommended module with the drawing before you commit the land pattern for it.

The shield has no EMI tabs — how do I get a chassis connection?

Through the solder tails and the board ground, or through a separate finger gasket that touches the plate. Without tabs the shell relies on the tails, so give them a solid plated pad and plenty of copper rather than a thin trace. If the enclosure is metal and the seam matters, add the gasket and check continuity from shell to chassis.

There are no magnetics inside — what has to sit on my board instead?

A discrete transformer module per port, plus the termination network the PHY expects. Place each module close to its mouth so the pair length between jack and winding stays short, and treat that link as part of the differential path. Two ports mean two modules; sharing one across both mouths will cost you crosstalk and a layout headache.

Breadcrumb: Home; Products; Modular Jack; RJ45 Jack without Magnetics; 8P8C RJ45 Jack; 104055

WE 615016137621 Compatible LINK-PP LPJEF102DNL Tab Down Without LED 1X2 Port RJ45 Network without Integrated Magnetics

Name: WE 615016137621 Compatible LINK-PP LPJEF102DNL Tab Down Without LED 1X2 Port RJ45 Network without Integrated Magnetics
Brand: LINK-PP
SKU: 104055
Price: 0.72 USD
Availability: InStock
Rating: 5 (46 reviews)

Product: WE 615016137621 Compatible LINK-PP LPJEF102DNL Tab Down Without LED 1X2 Port RJ45 Network without Integrated Magnetics
SKU: 104055
P/N: LPJEF102DNL
Price: $ 0.72
Stock: 2846 in Stock
Sold: 113.5K
Product URL: https://www.l-p.com/products/438733.htm

46 Reviews

4 Questions

113.5KSold

Unit price $ 0.72

New Users: $ 10.00 Coupon on Your First Order

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For Order Over $ 1,000.00 Get $ 15.00 Off

Code Linkpp15

For Order Over $ 3,000.00 Get $ 50.00 Off

Code Linkpp50

For Order Over $ 5,000.00 Get $ 100.00 Off

Code Linkpp100

Manufacture: LINK-PPP/N: LPJEF102DNLSKU: 104055

Compatible with WE 615016137621Datasheet 3D Model All downloads

Compatible:: Amphenol; TE; WE; X Multiple; LINK-PP

Compatible P/N:: 615016137621

Volume pricing Online tiers · larger qty or custom price on request

$ 0.720

1–999 pcs

$ 0.715

1,000–9,999 pcs

$ 0.644

10,000–24,999 pcs

$ 0.622

25,000–49,999 pcs

$ 0.608

50,000–99,999 pcs

$ 0.586

≥100,000 pcs

Need a qty beyond these tiers, or to negotiate price?

Stock:

2846 in Stock

Shipping:

$ 29.47

to United States via FedEx IP

Estimated delivery time : 3 - 6 days.

5-Year Warranty 15-Day Returns 15-Day Exchange

Free shipping over $ 600.00.

Or ship with your own UPS / FedEx / DHL account at checkout ($ 0.00 shipping).

Quantity:

SPQ 50

Total Price:

$ 0.72

Packaging Details

SPQ:50 pcs
Qty/carton:2500 pcs
Package:Tray
Carton size:53×36×31 cm
N.W/pcs:0.012 kg
G.W./carton:31 kg

Description
Specification
Matching Products
Download
Q&A
Customer Reviews

WE 615016137621 Compatible LINK-PP LPJEF102DNL RJ45 Network without Integrated Magnetics for Intercom and router (1X2 Port,Tab Down,Without LED)

The LPJEF102DNL supports speed 10/100 Base-T, it is compliant to IEEE 802.3, UL, Reach, RoHs, ISO19001, ISO14001 standards. It can be used to support application, such as SMPS,Industrial PC, Intercom and router.

LINK-PP Part Number:	LPJEF102DNL	WE Part Number	615016137621
Part Status	Active	Connector Type	Jack
Number of Positions/Contacts	8p8c (RJ45, Ethernet)	Application-Lan	-
Number of Ports	1x2 Port	Speed	-
Latch	Down	Cores per Port	-
Orientation	90° Angle (Right)	PCB Mount Angle	SIDE ENTRY
Shield EMI Tabs	Without	LED Option	Without
PCB	FR4	PCB Retaining Post	T POST
Package Height (Inches/mm)	0.537/13.65	Package Length (Inches/mm)	0.837/21.27
Package Width (Inches/mm)	1.225/31.12	Temperature	-40℃ TO 85℃
Bst Circuit	Yes	AutomDX	YES
Diodes	No	Contact Mating Area Plating	GOLD 6u"/15u"/30u"
Turns Ratio RX/TX	1CT:1CT	Configuration RX/TX	T,C

RJ45 Female Connector

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LPJEF102DNL Drawing LPJEF102DNL-新.pdf

Questions & Answers

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Q:
Two mouths on one body — how do I keep the pair routing from crossing underneath? by T***o

A:
Bring each port's pairs straight back from its own tails and let the two groups run parallel rather than crossing. The mouths are far enough apart that there is room, provided you do not try to share a via field. If the board is tight, escape the inner port first, then fit the outer one's pairs around it. by LINK-PP Technical Support
Q:
The table still lists a one to one turns ratio — what does that mean with no magnetics fitted? by H***k

A:
It describes the module we recommend for this jack, not something inside the shell. Because the part is a passive connector, the ratio column is there so a reader can pick a matching transformer without hunting through another document. Confirm the recommended module with the drawing before you commit the land pattern for it. by LINK-PP Technical Support
Q:
The shield has no EMI tabs — how do I get a chassis connection? by H***k

A:
Through the solder tails and the board ground, or through a separate finger gasket that touches the plate. Without tabs the shell relies on the tails, so give them a solid plated pad and plenty of copper rather than a thin trace. If the enclosure is metal and the seam matters, add the gasket and check continuity from shell to chassis. by LINK-PP Technical Support
Q:
There are no magnetics inside — what has to sit on my board instead? by C***e

A:
A discrete transformer module per port, plus the termination network the PHY expects. Place each module close to its mouth so the pair length between jack and winding stays short, and treat that link as part of the differential path. Two ports mean two modules; sharing one across both mouths will cost you crosstalk and a layout headache. by LINK-PP Technical Support

Customer Reviews

5

46 Reviews
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C***s

Brazil

Verified Purchase

5.0

2024-04-15

great website, good prices....very happy

35 Helpful Comments

V***l

Spain

Verified Purchase

5.0

2024-04-09

Thank you

21 Helpful Comments

R***h

South Africa

Verified Purchase

5.0

2024-01-31

When we needed assistance for product clarification & application, the staff were there to help us. Thank you.

66 Helpful Comments

C***e

United Kingdom

Verified Purchase

5.0

2024-01-23

Product is good, but not entirely as advertised!

19 Helpful Comments

M***h

Taiwan, Province of China

Verified Purchase

5.0

2024-01-14

Website easy to navigate and clear. Product info is comprehensive. Fast delivery and paperwork emailed rapidly. Great.

103 Helpful Comments

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