How do we inspect the press fit tails after assembly?

Turn the board over and look along both rows with a magnifier before anything else goes on the shelf. A tail that has folded back or missed its plated hole is obvious from underneath, while a marginal one can look fine from the top. We also check that the shell sits square to the board edge, since a tilted cage usually means the tool was not supported evenly. Catching it at that stage is far cheaper than a rework.

Do the EMI fingers need a metal panel to work?

Yes, they are formed from the same stamped shell and press against a conductive faceplate around the cutout. Without metal there is nothing to bond to and the springs are just a mechanical feature. A meter across the shell and the faceplate confirmed the bond on the first article, and we repeated that reading after painting, since a coated surface can break the path. Keep that chassis bond separate from the signal reference on the board.

No light pipe is listed. Where do the indicators go?

They stay on the board behind the cage, since this shell has no moulded guide to carry a lamp out to either opening. Host software still reports link and activity per port, and on a two port block the positions are usually labelled anyway. If the operator wants a lamp at the faceplate, that is a separate part with its own cutout. We relied on the switch display and marked both ports on the silkscreen.

Two stacked ports: how much room does the upper patch lead need?

The upper opening sits about twenty five millimetres above the board, and a stiff patch lead needs a clear arc above that before it turns into the cable tray. We left a finger width of free height over the shell and checked it with the enclosure lid closed, because a recessed panel is where this gets tight. The lower latch is reached from underneath, so leave a little space below the bottom opening too. A quick cardboard mock up saved us a panel revision.

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LP21BC01001 SFP+ 2x1 Cage&Connector Press-Fit With EMI Spring Finger

Name: LP21BC01001 SFP+ 2x1 Cage&Connector Press-Fit With EMI Spring Finger
Brand: LINK-PP
SKU: 169981
Price: 3.58 USD
Availability: InStock
Rating: 5 (52 reviews)

Product: LP21BC01001 SFP+ 2x1 Cage&Connector Press-Fit With EMI Spring Finger
SKU: 169981
P/N: LP21BC01001
Price: $ 3.58
Stock: 1996 in Stock
Sold: 4.8K
Product URL: https://www.l-p.com/products/468747.htm

52 Reviews

4 Questions

4.8KSold

Unit price $ 3.58

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P/N: LP21BC01001SKU: 169981

LINK-PP originalDatasheet All downloads

Compatible:: TE; Pulse; LINK-PP

Compatible P/N:: LP21BC01001

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$ 3.580

1–99 pcs

$ 2.983

100–999 pcs

$ 2.754

1,000–4,999 pcs

$ 2.429

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$ 2.301

≥10,000 pcs

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Stock:

1996 in Stock

Shipping:

$ 29.47

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Estimated delivery time : 3 - 6 days.

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$ 3.58

Description
Specification
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Q&A
Customer Reviews

LINK-PP LP21BC01001 2x1 Port SFP+ Cage Connector External Springs

LINK-PP Part Number	LP21BC01001	Part Status	Active
Product Type	Receptacle with Cage, Ganged (2x1)	Form Factor	SFP+
Data Rate (Max)(Gb/s)	-	Mounting Type	Through Hole, Right Angle
Termination	Press-Fit	Features	EMI Shielded
Port Matrix Configuration	2x1 Ports	Number of Ports	2
Operating Temperature Range	-40 – 85°C	Pluggable I/O Applications	SFP+
Circuit Application	-	EMI Containment Feature Type	External Springs
Included Lightpipe	NO	Cage Material	COPPER ALL OY 30u”
Length (Inches/mm)	63.25/2.490	Width (Inches/mm)	14.00/0.551
Height (Inches/mm)	25.53/1.005	PCB Thickness (Recommended)	2.36MM( .093 INCH)

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Product Drawing LP21BC01001-Drawing.pdf

Questions & Answers

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Q:
How do we inspect the press fit tails after assembly? by D***n

A:
Turn the board over and look along both rows with a magnifier before anything else goes on the shelf. A tail that has folded back or missed its plated hole is obvious from underneath, while a marginal one can look fine from the top. We also check that the shell sits square to the board edge, since a tilted cage usually means the tool was not supported evenly. Catching it at that stage is far cheaper than a rework. by LINK-PP Technical Support
Q:
Do the EMI fingers need a metal panel to work? by D***d

A:
Yes, they are formed from the same stamped shell and press against a conductive faceplate around the cutout. Without metal there is nothing to bond to and the springs are just a mechanical feature. A meter across the shell and the faceplate confirmed the bond on the first article, and we repeated that reading after painting, since a coated surface can break the path. Keep that chassis bond separate from the signal reference on the board. by LINK-PP Technical Support
Q:
No light pipe is listed. Where do the indicators go? by R***n

A:
They stay on the board behind the cage, since this shell has no moulded guide to carry a lamp out to either opening. Host software still reports link and activity per port, and on a two port block the positions are usually labelled anyway. If the operator wants a lamp at the faceplate, that is a separate part with its own cutout. We relied on the switch display and marked both ports on the silkscreen. by LINK-PP Technical Support
Q:
Two stacked ports: how much room does the upper patch lead need? by M***k

A:
The upper opening sits about twenty five millimetres above the board, and a stiff patch lead needs a clear arc above that before it turns into the cable tray. We left a finger width of free height over the shell and checked it with the enclosure lid closed, because a recessed panel is where this gets tight. The lower latch is reached from underneath, so leave a little space below the bottom opening too. A quick cardboard mock up saved us a panel revision. by LINK-PP Technical Support

Customer Reviews

5

52 Reviews
5 Stars

98%

4 Stars

2%

3 Stars

0%

2 Stars

0%

1 Star

0%

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N***e

Israel

Verified Purchase

5.0

2026-11-14

1.005 inch high and 0.551 inch wide comes to 25.53 by 14.00 mm, which slid into the tower box slot. The tails took the press without cracking the board, good ;)

57 Helpful Comments

D***t

Japan

Verified Purchase

5.0

2026-05-26

Two mouths in one row, good.

42 Helpful Comments

G***e

Sweden

Verified Purchase

5.0

2025-08-11

30 micro inch walls and the springs sit outside, good.

24 Helpful Comments

D***k

Greece

Verified Purchase

5.0

2025-02-09

Two cages share one press fit frame, so our bracket shop drills one opening instead of two. We pressed three into a 2.36 mm board on the bench and measured 63.25 mm across the pair, which matched the drawing. No solder at the cage at all.

20 Helpful Comments

H***e

New Zealand

Verified Purchase

5.0

2024-06-04

No light pipe, the module shows its own state, good.

52 Helpful Comments

Verified Purchase

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