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127-514-04-54 PDF预览

127-514-04-54

更新时间: 2024-02-04 19:12:27
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MARL PC
页数 文件大小 规格书
3页 204K
描述
PCB MOUNTING LEDs - Ø 5mm

127-514-04-54 数据手册

 浏览型号127-514-04-54的Datasheet PDF文件第1页浏览型号127-514-04-54的Datasheet PDF文件第3页 
127 Series  
Ø4.8  
Ø6.0  
0.5Sq  
2.54  
Anode  
Dimensions in mm (Typical)  
Not to scale  
Housing Material  
Polycarbonate  
This material offers UL94 V-0 flame retardancy* and a high impact strength. This material has a melt point of 290-340°C and is suitable for use in  
the majority of automatic soldering processes.  
*Material test thickness 1.6mm  
LEDs  
LED Polarity  
Anode identification is shown in the dimensional diagram. The long lead of a non-cropped unit can also be used to help identify the anode. For  
the 2 pin Bi-colour units the standard colour configuration is red anode to the ‘+’ sign.  
Reverse Polarity  
This is offered on all PCB units, with the exception of the 125 series, if requested to help overcome the problem of systems with reverse polarity  
connections. Multiple units can also be supplied in reverse polarity but not with mixed polarities. The 2 pin and 3 pin Bi-colours can be supplied in  
reverse colour configuration.  
Bi-colour  
2 Pin Operation  
To achieve the second colour for a 2 pin Bi-colour unit the supply must be reversed, standard colour configuration for these units is red anode to  
the ‘+’ sign.  
Electro-static Discharge (ESD)  
Build up of electrostatic discharge occurs in many situations involving people moving and handling products. The range of possible situations is  
very diverse but voltage levels as high as several thousand volts can and do arise in many individual situations. When an operator charged up to  
these levels handles a ‘static sensitive device’, there is a very probable likelihood that the device will be irreversibly damaged. It is essential that  
precautions are taken at all stages during manufacture and assembly of these products. Although LEDs were never considered to be static  
sensitive devices, changes in manufacturing technology and materials used to produce higher intensity products over a large range of the  
wavelength spectrum have changed this. Marl has an approved system of ESD control from goods in, through production and into final packing  
and despatch. We recommend all users of LED based products follow the guidelines of BS 100015.  
Note:  
All luminous intensity figures refer to the unmodified discrete LED.  
How to Order:  
website: www.marl.co.uk  
email: sales@marl.co.uk  
Fax: +44 (0)1229 585155  
Telephone +44 (0)1229 582430  
The information contained in this datasheet does not constitute part of any order or contract and should not be regarded as a representation  
relating to either products or service. Marl International reserve the right to alter without notice the specification or any conditions of supply  
for products or service.  
Page 2 of  
3
© MARL INTERNATIONAL LTD 2007 : DS 074/07 Issue 2  
SAMPLES AVAILABLE  

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