LZ1-00R400 Просмотр технического описания (PDF) - Unspecified

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LZ1-00R400

High Luminous Efficacy 850nm Infrared LED Emitter

Unspecified 

LZ1 MCPCB Family

Part number Type of MCPCB

LZ1-1xxxxx

LZ1-3xxxxx

1-channel Star

1-channel Mini

Diameter

(mm)

19.9

11.5

Emitter + MCPCB

Thermal Resistance

(oC/W)

Typical Vf

(V)

Typical If

(mA)

10.5 + 1.5 = 12.0 2.3

1000

10.5 + 2.0 = 12.5 2.3

1000

Mechanical Mounting of MCPCB

 MCPCB bending should be avoided as it will cause mechanical stress on the emitter, which could lead to

substrate cracking and subsequently LED dies cracking.

 To avoid MCPCB bending:

o Special attention needs to be paid to the flatness of the heat sink surface and the torque on the screws.

o Care must be taken when securing the board to the heat sink. This can be done by tightening three M3

screws (or #4-40) in steps and not all the way through at once. Using fewer than three screws will

increase the likelihood of board bending.

o It is recommended to always use plastics washers in combinations with the three screws.

o If non-taped holes are used with self-tapping screws, it is advised to back out the screws slightly after

tightening (with controlled torque) and then re-tighten the screws again.

Thermal interface material

 To properly transfer heat from LED emitter to heat sink, a thermally conductive material is required when

mounting the MCPCB on to the heat sink.

 There are several varieties of such material: thermal paste, thermal pads, phase change materials and thermal

epoxies. An example of such material is Electrolube EHTC.

 It is critical to verify the material’s thermal resistance to be sufficient for the selected emitter and its operating

conditions.

Wire soldering

 To ease soldering wire to MCPCB process, it is advised to preheat the MCPCB on a hot plate of 125-150oC.

Subsequently, apply the solder and additional heat from the solder iron will initiate a good solder reflow. It is

recommended to use a solder iron of more than 60W.

 It is advised to use lead-free, no-clean solder. For example: SN-96.5 AG-3.0 CU 0.5 #58/275 from Kester (pn:

24-7068-7601)

COPYRIGHT © 2015 LED ENGIN. ALL RIGHTS RESERVED.

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LZ1-00R400 (3.1-02/06/14)

LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | fax +1 408 922 0158 | em sales@ledengin.com | www.ledengin.com

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