Nichia STS-DA1-0561 No. 081105>
SPECIFICATIONS FOR NICHIA LUMINOUS INTENSITY BLUE STANDARD LED
MODEL : NLPB01S02
NICHIA CORPORATION
http://www. Datasheet4U. com
Nichia STS-DA1-0561 No. 081105>
1. FEATURES
· Blue LED in a 5mm lamp type package designed and developed for luminous intensity calibration. · Uniform directivity (luminous intensity and color) suitable for calibration. · Excellent accuracy and reproducibility by using a unique temperature stabilization system. · Great versatility in actual use simplifies location adjustment when measuring.
2. APPLICATION
· Calibration for luminous intensity measuring instrument.
3. SPECIFICATIONS
( 1) Absolute Maximum Ratings Item Forward Current Allowable Reverse Current Operating Temperature Storage Temperature Platinum resistance temperature device (RTD) Current Platinum RTD temperature Peltier Device Current Peltier Device Voltage Symbol IF IR 50 Topr Tstg 0 Ipt Tpt Ipel -1 Vpel ( Absolute Maximum Rating 30 20 ~ 30 ~ 40 2 30 ~ 35 ~ 1 3. 7 Ta=25°C) Unit mA mA °C °C mA °C A V
(2) Initial Electrical/Optical Characteristics Item Symbol Forward Voltage VF Luminous Intensity Iv x Chromaticity Coordinate y I (φ,θ)
(Ta=25°C, Platinum RTD Temp. Tpt=30°C) Condition Min. Typ. Max. Unit IF=20[mA] 2. 9 3. 5 V － IF=20[mA] 0. 5 cd － IF=20[mA] - 0. 13 － IF=20[mA] - 0. 07 Within ± 5% of Luminous intensity (Within ± 5° vs. Mechanical axis) Directivity IF=20[mA] x,y (φ,θ) Within ±0. 003 of Chromaticity (x, y) (Within ± 5° vs. Mechanical axis) Please refer to CIE 1931 chromaticity diagram. Measured when the LED is inserted into a socket. Measured after aging (conditions: Ta = 25°C, IF = 20 mA, 200 hours)
(3) Lumen Maintenance Remain in the rage of ± 3% from the initial value. After 100 hours of use. F = 20 mA (±0. 1%), Platinum RTD temp. Tpt = 30°C (±0. 03°C) Ta = 25°C, LED drive current I
4. TYPICAL INITIAL OPTICAL/ELECTRICAL CHARACTERISTICS,
Please
DIRECTIVITY refer to “TYP. CHARACTERISTICS” and “DIRECTIVITY” on the following pages...
NLPB01S02 PDF File
