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Accessory - Z-shape clip

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Z-SHAPE CLIP AND ANCHOR
AHK PictureANC PictureZCLIP Picture

Z-shape clips & anchors are a popular mechanical attachment option.
Anchors are mounted to the PCB, and the Z-shape clip secures the heat sink to the anchors while generating the attachment force and pressure. PCB thickness, device height, and anchor spacing will vary for each application. Review the following in order to select the most appropriate Z-shape clip, anchor, and heat sink combination.

ZCLIP PictureAHK PictureANC PictureHeatsink with Zclip

EZ clip

Z-clip

Solderless Anchor

Solder Anchor

Installation image

INDEX

1. Z-shape Clip Specification 4. Clip Load
2. Anchor Specification 5. Custom Clip Design Request
3. Pairing table with Standard Heat Sinks6. Related Links
1. Z-shape Clip Specification

We offer two basic types of Z-shape clips:

ezclip sampleezclip install

EZ clip

Shape allows for Easier installation/Toolless. No twisting of the heatsink is required for installation. This will prevent/minimize any possible damage to the device or interface material.

zclip samplezclip install

Z-clip

Traditional Z-shape clip. Installation typically requires slight twisting of the heat sink.


ModelAnchor Pitch
X x Y (mm)		DownloadAvailability / Price / Order
Data SheetOthers

EZ-clip

Anchor Position EZR type clip		30 x 15catalogRoHSREACHDXF

 

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Model Name: 
Quantity
40 x 25catalog
50 x 35catalog
60 x 45catalog
70 x 55catalog
Anchor Position EZL type clip30 x 15catalog
40 x 25catalog
50 x 35catalog
60 x 45catalog
70 x 55catalog

Model
Anchor Pitch
X x Y (mm)		DownloadAvailability / Price / Order
Data SheetOthers

Z-clip

Anchor Position:35.5x48.2		35.5 x 48.2catalogRoHSREACHDXF

 

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Model Name: 
Quantity
44.9 x 53.5catalog
48.2 x 60.9catalog
55.8 x 60.9catalog
47.5 x 76.2catalog
Anchor Position:35.5x48.235.5 x 48.2catalog
44.9 x 53.5catalog
48.2 x 60.9catalog
55.8 x 60.9catalog
47.5 x 76.2catalog

2. Anchor Specification
Model* PCB thickness
Max (mm)		* Recommended
PCB thickness (mm)		DownloadAvailability / Price / Order
Data SheetOthers

Solderless Anchor

AHK-1.6

AHK-2.6

AHK-3.4

SolderlessAnchor
2.151.60catalogRoHSREACHDXF

 

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Model Name: 
Quantity
3.002.60catalog
3.803.40catalog

Features

  • checkSnaps into a slot from the backside of the board
  • checkNo soldering, easy attachment
  • checkStronger retention

 

  • check Requires oblong slot in PCB
  • check Inexpensive
  •  

Solder Anchor

SolderAnchor
NA1.60catalogRoHSREACH
2.54-2.794

Features

  • checkInstalled from the component side of the PCB and soldered in place
  • checkSolder attachment
  • checkRequires holes in PCB

* When selecting the appropriate anchor, please consider the clip attchment load for your heat source.

3. Pairing Table with Standard Heat Sinks

V (vertical) type

QSZ clip V

AIR FLOW

H (horizontal) type

QSZ clip H

AIR FLOW

Regarding pairing with standard heat sinks, please refer to the following paring table.

  • Please consult Selecting a heat sink to determine if the heat sink will meet the thermal requirements.
  • In some cases, the clip may not be able to contact the exact center of a particular heat sink. This will depend on the fin pattern, air direction, and other factors.
  • Please check for fit and ease of attachment when using one of these wire clips. In some cases, installation can be difficult, requiring a twisting motion to install the clip and heat sink.
  • This table displays heat sink and Z-shape clip pairings based on the direction of clip attachment. With the V type (right above photo), the Z-shape clip runs perpendicular (opposite) of airflow/fin direction. The H type (right bottom photo) runs parallel (inline) with the airflow/fin direction. Please refer to the photos and check the airflow direction prior to pairing selection.

The meaning of each Symbol

SymbolDescription
OKZ-shape clip can be assembled at the center of heat sink.
△ Z-shape clip can NOT be assembled at the center of heat sink. We do not recommend this attachment in the case of a "V" type. The clip pressure point would be too far from center.
BlankZ-shape clip can NOT be used at all.
** The heat sink may interfere with the solder anchors. The heat sink will NOT interfere with the solderless anchors.

Please click part number for detail information such as specification, performance data.

EZ clipZ-clip
EZR-30x15
EZL-30x15 		EZR-40x25
EZL-40x25 		EZR-50x35
EZL-50x35 		EZR-60x45
EZL-60x45 		EZR-70x55
EZL-70x55 		35.5x48.2
35.5Rx48.2 		44.9x53.5
44.9Rx53.5 		48.2x60.9
48.2Rx60.9 		55.8x60.9
55.8Rx60.9 		47.5x76.2
47.5Rx76.2
VHVHVHVHVHVHVHVHVHVH
LPD15OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD17OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD19OK△OK△△△△△△△△△
LPD22OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD25 △ △ △ △ △ △ △ △ △
LPD28OK △OK △OK △OK △OK △OK △OK △OK △OK △
LPD30OKOKOKOKOKOKOKOKOK
LPD32OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD35 △ △ △ △ △ △ △ △
LPD38OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD40OKOKOKOKOKOKOKOK
LPD42OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD45OK △ OK △ OK △ OK △ OK △ OK △
LPD50OKOKOKOKOK
LPD52OKOKOKOKOKOKOKOKOKOK
LPD54 △ △
LPD60OKOKOKOK
LPD2030OK△OK△OK△OK△OK△OK△OK△OK△OK△
LPD2040OK△OK△OK△OK△OK△OK△OK△OK△
LPD3020OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD3040OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD3550OK△OK△OKOKOK△OK△OK△
LPD4020OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD4030OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
LPD4060OKOKOKOKOKOKOK
LPD5035OKOKOKOKOKOKOKOKOKOKOKOK
LPD5070OKOK
LPD6040OKOKOKOKOKOKOK
LPD7050OKOK
MD30OKOKOKOKOKOKOKOKOK
MD35 △ △ △ △ △ △ △ △
MD40OKOKOKOKOKOKOKOK
MD45OK △ OK △ OK △ OK △ OK △ OK △
MD50 △ △ △ △ △
MD54OKOK
MD60OK △** OK △
MD4050OKOKOKOKOKOKOKOKOKOKOKOKOK
ULP50OKOKOKOKOKOKOKOKOKOK
ULP60OKOKOKOK
W15OK △ OK △ △ △ △ △ △ △ △ △
W30OKOKOKOKOKOKOKOKOK
W35OKOKOKOKOKOKOKOK
W40OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
W45OKOKOKOKOKOKOKOKOKOKOKOK
W48OK △ OK △ OK △ OK △ OK △
W54 △ △
W60 △** △
TL19OKOKOKOKOKOKOKOKOKOK
TL25OKOKOKOKOKOKOKOKOK
TL30OKOKOKOKOKOKOKOKOK
TL35OKOKOKOKOKOKOKOK
TL40△△△△△△△△
EZ clipZ-clip
EZR-30x15
EZL-30x15		EZR-40x25
EZL-40x25		EZR-50x35
EZL-50x35		EZR-60x45
EZL-60x45		EZR-70x55
EZL-70x55		35.5x48.2
35.5Rx48.2		44.9x53.5
44.9Rx53.5		48.2x60.9
48.2Rx60.9		55.8x60.9
55.8Rx60.9		47.5x76.2
47.5Rx76.2
VHVHVHVHVHVHVHVHVHVH
UB seriesWe can offer the equivalent UBZ series heatsinks, designed specifically for use with clips in both vertical and horizontal directions, in the exact center.
UB10OKOKOKOKOKOKOKOKOKOK
UB15OK △OK △OK △OK △OK △OK △OK △OK △OK △OK △
UB17OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB19OK △ OK △ △ △ △ △ △ △ △ △
UB22OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB25OKOKOKOKOKOKOKOKOKOK
UB28OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB30OKOKOKOKOKOKOKOKOK
UB32OK △ OK △ OK △ OK △ OK △ OK △ OK △ OK △
UB35OKOKOKOKOKOKOKOK
UB38OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB40 △ △ △ △ △ △ △ △
UB42OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB45 △ △ △ △ △ △
UB48OKOKOKOKOK
UB50 △ △ △ △ △
UB52OKOKOKOKOKOKOKOKOKOK
UB54 △ △
UB60 △** △
UB2010△△△△△△△△△△
UB2030OK△OK△OK△OK△OK△OK△OK△OK△OK△
UB2035OK△OK△OK△OK△OK△OK△OK△OK△
UB2040OK△OK△OK△OK△OK△OK△OK△OK△
UB3020OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB3040OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB3550OKOKOKOKOKOKOKOKOKOKOKOKOK
UB4020OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB4030OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UB4060OKOKOKOKOKOKOK
UB5035OKOK△OK△△OK△OK△OK△OK△
UB5070OKOK
UB6040OKOKOKOKOKOKOK
UB7050OKOK
UBC60 △** △
UBZ40OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
UBZ45OKOKOKOKOKOKOKOKOKOKOKOK
UBZ50OKOKOKOKOKOKOKOKOKOK
UBZ54OKOKOKOK
UBZ60OKOKOKOK
Z series Z-shape clip can NOT be used for Z series, except Z19.
We can offer the equivalent ZZ series heatsinks, designed specifically for use with clips in both verticaland horizontal directions, in the exact center.
Z19OKOK
ZZ40OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
ZZ45OKOKOKOKOKOKOKOKOKOKOKOK
ZZ50OKOKOKOKOKOKOKOKOKOK
ZZ54OKOKOKOK
ZZ60OKOKOKOK
T series Z-shape clip can not be used for T series.
N19 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
N25 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
N30 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
N35 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
N40 △** △** △ △ △ △ △ △ △ △ △ △ △ △ △ △
N45 △ △ △ △ △ △ △ △ △ △ △ △
N50 △** △** △ △ △ △ △ △ △ △
N54 △ △ △ △
N60 △** △** △ △
CS40OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
CS45OKOKOKOKOKOKOKOKOKOKOKOK
S1510△△△△△△△△△△△△△△△△△△△△
S1515OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
S1519 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
S1525 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
S1530OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
S1535 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △
S1540 △** △** △ △ △ △ △ △ △ △ △ △ △ △ △ △
S1545 △ △ △ △ △ △ △ △ △ △ △ △
S1550OKOKOKOKOKOKOKOKOKOK
S1555 △ △ △ △
S1560OKOKOKOK
ST15△△△△
ST19△△△△
ST25△△
ST30△△
ST35
ST40
ST60
VHVHVHVHVHVHVHVHVHVH
EZR-30x15
EZL-30x15		EZR-40x25
EZL-40x25		EZR-50x35
EZL-50x35		EZR-60x45
EZL-60x45		EZR-70x55
EZL-70x55		35.5x48.2
35.5Rx48.2		44.9x53.5
44.9Rx53.5		48.2x60.9
48.2Rx60.9		55.8x60.9
55.8Rx60.9		47.5x76.2
47.5Rx76.2
EZ clipZ-clip

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4. Clip Load
Clip load diagram

The clip load on the heat source can be calculated by the following tool. Please note that this data is just for reference. Unknown dimensions and tolerances can significantly affect the load on the heat source.





1st, Calculate X value for the graph below based on the formula provided below the graph.
2nd, Y value (Clip load) can be found from the intersection of "X value" and "Z-shape clip performance line".

Clip load graph


  • Clip Load Calculator
Z-Clip

Force

**.**   kgf

Pressure

**.**   kgf/cm2
Anchor
Heat Sink Base Thicknessmm
Chip Contact Areammxmm

Input Unit:

   
Chip Heightmm
PCB thicknessmm

5. Custom Clip Design Request

A custom clip can be created if a standard clip will not work with your application.
Please contact Alpha Sales for details.

  • Cost & Lead time Information :
  •   Prototype cost is approximately $300. No NRE/Tooling fee is required.
  •   Prototype lead time is approximately 2 weeks. Production lead time is 2-4 weeks.

© 2007 Alpha Novatech, Inc.