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QSZ CLIP

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Based on the conditions you entered, the selected clip / anchor combination can not be used.
Please change the clip and/or anchor combination, or contact Alpha Sales.
Please input/select the followings:
    Please select Clip type.
    CQZ & QSZ CLIPS
    QSZClips and Anchor Pins

    Clips and Anchor pins

    Installation Image

    CQZ & QSZ clips are an original mechanical attachment option developed by Alpha.
    Anchor pins are mounted in the PCB, and the CQZ & QSZ clips secure the heat sink to the anchor pins 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 CQZ & QSZ clip, anchor pin, and heat sink combination.

    1. CQZ (Compact QSZ) versus QSZ

    Alpha offers CQZ and QSZ clips, depending on PCB hole diameter and load capacity.

    CQZ clip & CNCR anchor pin
    QSZ clip & ANCR anchor pin
     CQZ clip and anchor
    PCB hole diameter (mm)
    Φ 1.5 +/-0.05
    Φ 1.8 +/-0.05
    Suggested Heatsink Size
    Max 50x50mm
    Max 60x60mm
    Clip Name PrefixCQZQSZ
    Anchor Name PrefixCNCRANCR
    CQZ ModelAnchor Pin Layout
    X x Y (mm)
    DownloadsAvailability / Price / Order
    Data SheetOthers

    PCB Hole

    Φ1.5

    +/-0.05

    CQZ Clip
    25 x 25catalogRoHSREACHDXF

     

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    Model Name: 
    Quantity
    30 x 30catalog
    30 x 35catalog
    35 x 40catalog
    40 x 45catalog
    40 x 50catalog
    40 x 55catalog

    PCB Hole

    Φ1.5

    +/-0.05

    CQZ Clip
    25 x 25catalog
    30 x 30catalog
    30 x 35catalog
    35 x 40catalog
    40 x 45catalog
    40 x 50catalog
    40 x 55catalog
    QSZ ModelAnchor Pin Layout
    X x Y (mm)
    DownloadsAvailability / Price / Order
    Data SheetOthers

    PCB Hole

    Φ1.8

    +/-0.05

    QSZ Clip
    24 x 24catalogRoHSREACHDXF

     

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    Model Name: 
    Quantity
    29 x 29catalog
    34 x 34catalog
    39 x 39catalog
    44 x 44catalog
    49 x 49catalog
    54 x 54catalog
    58 x58catalog
    64 x 64catalog

    PCB Hole

    Φ1.8

    +/-0.05

    QSZ Clip
    24 x 24catalog
    29 x 29catalog
    34 x 34catalog
    39 x 39catalog
    44 x 44catalog
    49 x 49catalog
    54 x 54catalog
    58 x 58catalog
    64 x 64catalog
      Create Custom Size

    3. Anchor Pin (CNCR & ANCR) Specification

    Anchor pins remain captive to the PCB, with no solder required.

    CNCR ModelSize
    Z (mm)
    DownloadsAvailability / Price / Order
    Data SheetOthers

    PCB Hole

    Φ1.5

    +/-0.05

    Anchor Pin
    8catalogRoHSREACHDXF

     

    Close
    Model Name: 
    Quantity
    9
    10
    11
    12
    13
    14
    15
    16
    ANCR ModelSize
    Z (mm)
    DownloadsAvailability / Price / Order
    Data SheetOthers

    PCB Hole

    Φ1.8

    +/-0.05

    Anchor Pin
    8catalogRoHSREACHDXF

     

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    Model Name: 
    Quantity
    9
    10
    11
    12
    13
    14
    15
    16

    Small PCB Area

    Easy-Install

    quick set1

    Anchor pins require very small holes in the PCB as followings:

    • - CNCR anchor pin : 1.5 +/-0.05mm diameter
    • - ANCR anchor pin : 1.8 +/-0.05mm diameter

    Small footprint greatly reduces the amount of PCB space sacrificed for heat sink attachment, minimizing or eliminating the need to move board traces.

    Z-Clip and QSZ-Clip

    During heat sink installation, traditional Z-Clips may require the heat sink to be slightly twisted or tilted in order for the clip to engage with the board mounted anchor. This could possibly damage any pre-applied thermal interface material or even the device package or exposed die. The CQZ & QSZ clip can be installed without requiring any twisting or tilting of the heat sink.

    Location and Orientation Guide

    Minimize bare-die damage during heat sink installation

    Location and Orientation Guide

    If a heat sink is accidentally installed in the wrong orientation relative to the airflow direction, this could result in serious thermal issues. The heat sink layout can be designed to incorporate anchor pin locations inside the heat sink footprint. The anchor pins would have to pass through holes in the heat sink, ensuring proper orientation.

    Kept horizontal position

    Exposed dies can be damaged if the heat sink attachment load is applied to the edges or corners of the die. This can happen if the heat is tilted during installation. If the anchor pins are located inside of the heat sink footprint, they will act as guides when the heat sink is installed. The tight clearance between the anchor pins and the clearance holes will greatly reduce the ability of the heat sink to tip or tilt during installation, preventing contact with the edges or corners of the die.


    Guidance for installing procedure

    1. Insert anchor pins

    1. Align the heat sink with the chip and anchor pins.

    1-1. Inspect anchor pins

    1-1. Confirm that the anchor pin is fully inserted.

    2. set heatsink

    2. Gently place the heatsink on the top of the chip.

    3. Set clip

    3. Attach one end of the clip’s hook plate to the anchor pin. Attach the hook plate by bringing it in from the outside and locking it into the pin.
    (follow arrow direction)

    4. Reverse side

    4. While applying light pressure to the heat sink to keep it level, lock in the hook plate on the opposite side.

    4-1. Press

    4-1. Detail of locking procedure:Push the hook plate down.

    4-2. Lock

    4-2. Slide the hook plate in, toward the anchor pin. Make sure the hook plate slides in under the anchor pin head. Release the hook plate, locking it in place. Inspect the hook plate and pin head to ensure the hook plate is firmly seated and locked.

    5. Done

    5. Done!

    Back to Top

    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.

    • This table only lists the physical dimensions as OK or not OK. 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 CQZ & QSZ clip pairings based on the direction of clip attachment. With the V type (right above photo), the CQZ & QSZ clip run 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
    OKCQZ & QSZ clip can be assembled at the center of Heat sink.
    CQZ & QSZ 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 the center.
    BlankCQZ & QSZ clip can not be used at all.

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

    CQZ
    -
    -
    QSZ
    VHVHVHVHVHVHVHVHVH
    LPD15OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    LPD17OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    LPD19OKOKOK
    LPD22OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    LPD25
    LPD28OKOKOKOKOKOKOK
    LPD30OKOKOKOKOKOKOK
    LPD32OKOKOKOKOKOKOKOKOKOKOKOK
    LPD35
    LPD38OKOKOKOKOKOKOKOKOKOK
    LPD40OKOKOKOKOK
    LPD42OKOKOKOKOKOKOKOK
    LPD45OKOKOKOK
    LPD50OKOKOK
    LPD52 OK OK OK OK
    LPD54
    LPD60OKOK
    LPD2030OKOKOKOKOKOKOKOKOK
    LPD2040OKOKOKOKOKOKOKOKOK
    LPD3020OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    LPD3040OKOKOKOKOKOKOKOKOKOKOKOK
    LPD3550OKOKOKOKOKOK
    LPD4020OKOKOKOKOKOKOKOKOKOKOKOKOKOK
    LPD4030OKOKOKOKOKOKOKOKOKOKOKOK
    LPD4060OKOKOKOKOKOK
    LPD5035OKOKOKOKOKOKOKOKOK
    LPD6040OKOKOKOKOKOK
    MD30OKOKOKOKOKOKOK
    MD35
    MD40OKOKOKOKOK
    MD45OKOKOKOK
    MD50
    MD54OKOK
    MD60OK
    MD4050OKOKOKOKOKOKOKOKOK
    ULP50OKOKOKOKOKOK
    ULP60OKOK
    W15OKOKOK
    W30OKOKOKOKOKOKOK
    W35OKOKOKOKOKOK
    W40OKOKOKOKOKOKOKOKOKOK
    W45OKOKOKOKOKOKOKOK
    W48OKOKOK
    W54
    W60
    TL19OKOKOKOKOKOKOKOKOK
    TL25OKOKOKOKOKOKOKOK
    TL30OKOKOKOKOKOKOK
    TL35OKOKOKOKOKOK
    TL40
    For 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.
    UB10OKOKOKOKOKOKOKOKOK
    UB15OKOKOKOKOKOKOKOKOK
    UB17OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    UB19OKOKOK
    UB22OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    UB25OKOKOKOKOKOKOKOKOKOK
    UB28OKOKOKOKOKOKOKOKOKOKOKOKOKOK
    UB30OKOKOKOKOKOKOK
    UB32OKOKOKOKOKOK
    UB35OKOKOKOKOKOK
    UB38OKOKOKOKOKOKOKOKOKOK
    UB40
    UB42 OK OK OK OK OK OK OK OK
    UB45
    UB48OKOKOK
    UB50
    UB52 OK OK OK OK
    UB54
    UB60
    UB2010
    UB2030OKOKOKOKOKOKOKOKOK
    UB2035OKOKOKOKOKOKOKOKOK
    UB2040OKOKOKOKOKOKOKOKOK
    UB3020OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    UB3040OKOKOKOKOKOKOKOKOKOKOKOK
    UB3550OKOKOKOKOKOKOKOKOK
    UB4020OKOKOKOKOKOKOKOKOKOKOKOKOKOK
    UB4030OKOKOKOKOKOKOKOKOKOKOKOK
    UB4060OKOKOKOKOKOK
    UB5035OKOKOK
    UB6040OKOKOKOKOKOK
    UBC60
    UBZ40OKOKOKOKOKOKOKOKOKOK
    UBZ45OKOKOKOKOKOKOKOK
    UBZ50OKOKOKOKOKOK
    UBZ54OKOKOKOK
    UBZ60OKOK
    For Z series We can offer the equivalent ZZ series heatsinks, designed specifically for use with clips in both vertical and horizontal directions, in the exact center.
    Z19OKOK
    ZZ40OKOKOKOKOKOKOKOKOKOK
    ZZ45OKOKOKOKOKOKOKOK
    ZZ50OKOKOKOKOKOK
    ZZ54OKOKOKOK
    ZZ60OKOK
    T QSZ clip can not be used for T series.
    S1515OKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOKOK
    S1519
    S1525
    S1530OKOKOKOKOKOKOKOKOKOKOKOKOKOK
    S1535
    S1540
    S1545
    S1550OKOKOKOKOKOK
    S1555
    S1560OKOK
    ST15
    ST19
    ST25OKOKOKOK
    ST30
    ST35
    ST40
    ST60
    N19
    N25
    N30
    N35
    N40
    N45
    N50
    N54
    N60
    CS40OKOKOKOKOKOKOKOKOKOK
    CS45OKOKOKOKOKOKOKOK

    Back to Top

    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 of graph, using the formula below the graph.
    2nd, Y value (Clip load) can be found from the intersection of "X value" and "CQZ & QSZ clips performance line".

    Clip load graph

    • Clip Load Calculator
    Clip Type
    Clip

    Force

    **.**   kgf

    Pressure

    **.**   kgf/cm2
    Anchor Pin
    Heat Sink Base Thicknessmm
    Chip Contact Areamm   x mm

    Input Unit:

       
    Chip Heightmm
    PCB thicknessmm

    Custom QSZ clip

    A custom clip can be created if none of our standard clips are compatible with your PCB layout.
    Please use our online QSZ Clip Design Tool. Simply enter your design information and submit the request.


    • Cost & Lead time Information :
    •   No NRE/Tooling fee is required.
    •   Estimated unit cost is $20.00 for 10pcs, $3.00 for 100pcs, and $1.50 for 300pcs.
    •   Prototype lead time is approximately 2 weeks. Production lead time is 2-4 weeks.


    © 2011-2023 Alpha Novatech, Inc.