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L635-xxU      Red LED Lamp
  
This series of L635 is a InGaAlP LED mounted on a lead frame with clear epoxy lens. On forward bias it emits a spectrally narrow band of visible light which peaks at 635nm.
 
Product Specification
 
Chip Material InGaAlP
Peak Wavelength 635nm typ.
Package Clear epoxy resin
Lead Frame Soldered
 
Maximum Specification
 
Item Max   Ambient Temp.
Power dissipation, PD   140 mW Ta=25°C
Forward current , I 50 mA Ta=25°C
Reverse voltage, V 5 V Ta=25°C
Operation temp., Topr  -30/+85  °C
Storage temp. , Tstg   -30/+100 °C
Solder temp., Tsol   260 °C
 
Electro-Optical Characteristics  
 
Item Condition Min Standard Max
Forward voltage, VF IF =20mA 2.0 2.5 V
Reverse current , IR VR =5V   10 µA  
Total radiated power, PO IF =20mA 0.4 mW  
Peak wavelength, lp IF =20mA 625 nm  635 nm  645 nm 
Half-Width, Dl ½   IF =20mA 30 nm
 
Luminescence Characteristics
 
Part no. Viewing Half Angle Luminescence (IF=20mA)   Dimension 
L635-01U   ±10° 1200 mcd Ø5 mm Fig. no.1
L635-03U ±15°   800 mcd Ø5 mm Fig. no.3
L635-04U   ±20°   500 mcd  Ø5 mm Fig. no.4
L635-06U ±6° 3000 mcd Ø5 mm Fig. no.6
L635-09U   ±25° (long axis)   800 mcd  

Ø5 mm (oval)  

±15° (short axis) Fig. no.7
L635-10U ±6° 2000* mcd  Ø10 mm Fig. no.8
L635-33U   ±15°   400 mcd  Ø3 mm Fig. no.9
L635-36U ±30°     200 mcd Ø3 mm Fig. no.10
 
 * Classification: U=2000, V=4000, W=6000 mcd
 
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