Performance Characteristics
Product Selection Guide
Table 1. Product selection for SignalSure 250 at 20ms MP, 250mA, Tj=25°Cꢀ
dOMIꢁAꢁT WAVEꢂEꢁGTH [1,2]
cOꢂOꢀ
PAꢀT ꢁUMBEꢀ
(nm)
Red Orange
Super Red
Super Red
615
630
635
A1DL - O612L
A1DL - S627L
A1DL - S632L
Notes for Table 1:
1. Dominant wavelength is derived from the CIE 1931 Chromaticity diagram and represents perceived color.
2. Lumileds maintains a tolerance of ±1nm for dominant wavelength measurements.
Optical Characteristics
Table 2. Typical optical characteristics for SignalSure 250 at 20ms MP, 250mA, Tj=25°Cꢀ
TyPIcAꢂ TOTAꢂ IꢁcꢂUdEd AꢁGꢂE [1]
TyPIcAꢂ VIEWIꢁG AꢁGꢂE [2]
PAꢀT ꢁUMBEꢀ
θ0.90V
2θ1/2
A1DL - O612L
A1DL - S627L
A1DL - S632L
140°
140°
140°
110°
110°
110°
Notes for Table 2:
1. Total angle at which 90% of total luminous flux is captured.
2. Viewing angle is the off axis angle from lamp center line where the luminous intensity is ½ of the peak value.
Electrical and Thermal Characteristics
Table 3. Electrical and thermal characteristics for SignalSure 250 at 20ms MP, 250mA, Tj= 25°Cꢀ
PAꢀAMETEꢀ
PEꢀFOꢀMAꢁcE
Forward Voltage, Vf
2.6V
[2]
Electrical Thermal Resistance, Rth j-c electr (Maximum)
25°C/W
33°C/W
Real Thermal Resistance, Rth j-c real [3] (Maximum)
Temperature Coefficient of Vf ,
If = 250mA, 10°C ≤ Tc ≤ 115°C
-3.5mV/°C
Notes for Table 3:
3. All values are typical unless otherwise stated.
4.
R
: Electrical thermal resistance (junction to case).
5. Rtthh jj--cc ereleacl:trReal thermal resistance (junction to case) with wall plug efficiency included. Reference JESD51-51, JESD51-14, 4.1.3.
DS148 SignalSure 250 Product Datasheet 20160508 ©2016 Lumileds Holding B.V. All rights reserved.
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