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Accessory - Z-shape clip

Z-SHAPE CLIP AND ANCHOR
AHK Picture ANC Picture ZCLIP 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 Picture AHK Picture ANC Picture Heatsink with Zclip

EZ clip

Z-clip

Solderless Anchor

Solder Anchor

Installation image

We offer two basic types of Z-shape clips:


ezclip sample ezclip 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 sample zclip install

Z-clip

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



Model Anchor Pitch
X x Y (mm)
Download Availability / Price / Order
Data Sheet Others

EZ-clip

Anchor Position EZR type clip
30 x 15 catalog RoHS REACH DXF
40 x 25 catalog
50 x 35 catalog
60 x 45 catalog
70 x 55 catalog
Anchor Position EZL type clip 30 x 15 catalog
40 x 25 catalog
50 x 35 catalog
60 x 45 catalog
70 x 55 catalog

Model
Anchor Pitch
X x Y (mm)
Download Availability / Price / Order
Data Sheet Others

Z-clip

Anchor Position:35.5x48.2
35.5 x 48.2 catalog RoHS REACH DXF
44.9 x 53.5 catalog
48.2 x 60.9 catalog
55.8 x 60.9 catalog
47.5 x 76.2 catalog
Anchor Position:35.5x48.2 35.5 x 48.2 catalog
44.9 x 53.5 catalog
48.2 x 60.9 catalog
55.8 x 60.9 catalog
47.5 x 76.2 catalog

Model * PCB thickness
Max (mm)
* Recommended
PCB thickness (mm)
Download Availability / Price / Order
Data Sheet Others

Solderless Anchor

AHK-1.6

AHK-2.6

AHK-3.4

SolderlessAnchor
2.15 1.60 catalog RoHS REACH DXF
3.00 2.60 catalog
3.80 3.40 catalog

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
NA 1.60 catalog RoHS REACH
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.

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

Symbol Description
OK Z-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.
Blank Z-shape clip can NOT be used at all.
* Due to installation difficulty, we do not recommend the use of Z-shape clips with these series of heat sinks if they are taller than 15mm.
** 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 clip Z-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
V H V H V H V H V H V H V H V H V H V H
LPD15 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD17 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD19 OK OK
LPD22 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD25
LPD28 OK OK OK OK OK OK OK OK OK
LPD30 OK OK OK OK OK OK OK OK OK
LPD32 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD35
LPD38 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD40 OK OK OK OK OK OK OK OK
LPD42 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD45 OK OK OK OK OK OK
LPD50 OK OK OK OK OK
LPD52 OK OK OK OK OK OK OK OK OK OK
LPD54
LPD60 OK OK OK OK
LPD2030 OK OK OK OK OK OK OK OK OK
LPD2040 OK OK OK OK OK OK OK OK
LPD3020 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD3040 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD3550 OK OK OK OK OK OK OK
LPD4020 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD4030 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
LPD4060 OK OK OK OK OK OK OK
LPD5035 OK OK OK OK OK OK OK OK OK OK OK OK
LPD5070 OK OK
LPD6040 OK OK OK OK OK OK OK
LPD7050 OK OK
MD30 OK OK OK OK OK OK OK OK OK
MD35
MD40 OK OK OK OK OK OK OK OK
MD45 OK OK OK OK OK OK
MD50
MD54 OK OK
MD60 OK △** OK
MD4050 OK OK OK OK OK OK OK OK OK OK OK OK OK
ULP50 OK OK OK OK OK OK OK OK OK OK
ULP60 OK OK OK OK
W15 OK OK
W30 OK OK OK OK OK OK OK OK OK
W35 OK OK OK OK OK OK OK OK
W40 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
W45 OK OK OK OK OK OK OK OK OK OK OK OK
W48 OK OK OK OK OK
W54
W60 △**
TL19 OK OK OK OK OK OK OK OK OK OK
TL25 OK OK OK OK OK OK OK OK OK
TL30 OK OK OK OK OK OK OK OK OK
TL35 OK OK OK OK OK OK OK OK
TL40
EZ clip Z-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
V H V H V H V H V H V H V H V H V H V H
UB series We can offer the equivalent UBZ series heatsinks, designed specifically for use with clips in both vertical and horizontal directions, in the exact center.
UB10 OK OK OK OK OK OK OK OK OK OK
UB15 OK OK OK OK OK OK OK OK OK OK
UB17 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB19 OK OK
UB22 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB25 OK OK OK OK OK OK OK OK OK OK
UB28 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB30 OK OK OK OK OK OK OK OK OK
UB32 OK OK OK OK OK OK OK OK
UB35 OK OK OK OK OK OK OK OK
UB38 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB40
UB42 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB45
UB48 OK OK OK OK OK
UB50
UB52 OK OK OK OK OK OK OK OK OK OK
UB54
UB60 △**
UB2010
UB2030 OK OK OK OK OK OK OK OK OK
UB2035 OK OK OK OK OK OK OK OK
UB2040 OK OK OK OK OK OK OK OK
UB3020 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB3040 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB3550 OK OK OK OK OK OK OK OK OK OK OK OK OK
UB4020 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB4030 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UB4060 OK OK OK OK OK OK OK
UB5035 OK OK OK OK OK OK OK
UB5070 OK OK
UB6040 OK OK OK OK OK OK OK
UB7050 OK OK
UBC60 △**
UBZ40 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
UBZ45 OK OK OK OK OK OK OK OK OK OK OK OK
UBZ50 OK OK OK OK OK OK OK OK OK OK
UBZ54 OK OK OK OK
UBZ60 OK OK OK OK
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.
Z19 OK OK
ZZ40 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
ZZ45 OK OK OK OK OK OK OK OK OK OK OK OK
ZZ50 OK OK OK OK OK OK OK OK OK OK
ZZ54 OK OK OK OK
ZZ60 OK OK OK OK
T series Z-shape clip can not be used for T series.
N19
N25
N30
N35
N40 △** △**
N45
N50 △** △**
N54
N60 △** △**
CS40 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
CS45 OK OK OK OK OK OK OK OK OK OK OK OK
S1510
S1515 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
S1519
S1525
S1530 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
S1535
S1540 △** △**
S1545
S1550 OK OK OK OK OK OK OK OK OK OK
S1555
S1560 OK OK OK OK
ST15
ST19
ST25
ST30
ST35
ST40
ST60
V H V H V H V H V H V H V H V H V H V H
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 clip Z-clip

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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 Thickness mm
Chip Contact Area mmx mm

Input Unit:

   
Chip Height mm
PCB thickness mm

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.