SPECIFICATIONS
NAME: Φ1.9 DOT MATRIX
TYPE: LDM0788SRA
SHENZHEN DITELONG INDUSTRIAL CO.,LTD.
SHENZHEN CANDELA ELECTRONIC CO.,LTD.
SHENZHEN SUCCESS PHOTOELECTRONICS CO.,LTD
SHENZHEN OFFICE
Add: Room 1911,Zhongwin Science & Techn.Bldg,Bagua 3th Rd.Bagualing Industry Zone Shenzhen,China
Tel: 86-755-25884151 Fax: 86-755-25884659 Post Code: 518029
E-mail: ditelong@asiansources.com Http://www.asia globalsources.com/ditelong.co Http://www.ditelong.com
SHENZHEN FACTORY
Add:4/F Ranbao Bldg,NO. 189 Industrial Zone,Henggang,ShenZhen,china
Tel:86-755-28630148 28630040 Fax:86-755-28631216 Post Code:518115
NO.：QB/SPS 73 PS 2055A
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SPECIFICATIONS NO.：QB/SPS 73 PS 2055A
LDM—0788SRA
1．FEATURES 2．DESCRIPTION
· High quality and low cost · 8×8 dot matrix displays.
· High reliable and intensity · Φ1.9 mm dot and pitch 2.54 mm
· Low power requirement · Black face
· I.C compatible · White diffusion dots.
3．PACKAGE DIMENSIONS
NOTES:
1.All dimensions are in millimeters.
2.Tolerance are ± 0.25mm unless otherwise noted.
4．CIRCUIT DIAGRAM
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SPECIFICATION NO.：QB/SPS 73 PS 2055A
5．ABSOLUTE MAXIMUM RATINGS Ta=25℃
ITEMS SYMBOL Red UNIT
Power Dissipation Per Dot PD 60 mw
Forward Current Per Dot* IF 20 mA
Peak Forward Current Per Dot** IFP 80 mA
Reverse Voltage Per Dot VR 5 V
Operation Temperature Range Topr -30～+80 ℃
S torage Temperature Range Tstg -35～+85 ℃
Soldering Temperature Tsol ≦260℃/3 sec
NOTES:
* We advise average forward c urrent is 15mA
** pulse width=10mes, duty=1/8
6．ELECTRICAL/OPTICAL CHARACTERISTICS Ta=25℃
RATING
PARAMETER SYMBOL TEST
CONDITIONS PART NO MIN TYP MAX UNIT
Red 1.85 2.0
Forward voltag per
dot VF IF=20mA V
Red
Reverse current per
dot IR VR=5V
50 μA
Red 9 mcd
Luminous intensity
per dot IV IFP=40mA
1/8 duty
Red 640
Peak emission
wavelength per dot λP IF=20mA
nm
Red 35
Spectral line
wavelength per dot △λ IF=20mA
nm
7．CAUTIONS:
a）When being used, do not be over the corresponding limited scale and note in our specification.
b）For some products with the static electricity mark, please operate refer to the rules of static electricity
fence.
c）When designing, please consider the factor of heat, and taking keep away measure to avoid high
temperature.
d）Do not clean the product with organic impregnant as some of them may damage the product.
.
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