Through Hole Lamp Product Data Sheet LTL-2251AT Spec No.: DS-20-97-0171 Effective Date: 03/31/2000 Revision: - LITE-ON DCC RELEASE BNS-OD-FC001/A4 LITE-ON Technology Corp. / Optoelectronics No.90,Chien 1 Road, Chung Ho, New Taipei City 23585, Taiwan, R.O.C. Tel: 886-2-2222-6181 Fax: 886-2-2221-1948 / 886-2-2221-0660 http://www.liteon.com/opto LITE-ON ELECTRONICS, INC. Property of Lite-On Only Features * Cylindrical shape. * Low power consumption. * I.C. compatible * Long life solid state reliability. Package Dimensions Part No. Lens Source Color LTL-2251AT Yellow Diffused Yellow NOTES: 1. All dimensions are in millimeters (inches). 2. Tolerance is ±0.25mm(.010") unless otherwise noted. 3. Protruded resin under flange is 1.0mm(.04") max. 4. Lead spacing is measured where the leads emerge from the package. 5. Specifications are subject to change without notice. Part No. : LTL-2251AT BNS-OD-C131/A4 Page : 1 of 4 LITE-ON ELECTRONICS, INC. Property of Lite-On Only Absolute Maximum Ratings at TA=25℃ Maximum Rating Unit 60 mW 80 mA Continuous Forward Current 20 mA Derating Linear From 50℃ 0.25 mA/℃ 5 V Parameter Power Dissipation Peak Forward Current (1/10 Duty Cycle, 0.1ms Pulse Width) Reverse Voltage Operating Temperature Range -55℃ to + 100℃ Storage Temperature Range -55℃ to + 100℃ Lead Soldering Temperature 260℃ for 5 Seconds [1.6mm(.063") From Body] Part No. : LTL-2251AT BNS-OD-C131/A4 Page : 2 of 4 LITE-ON ELECTRONICS, INC. Property of Lite-On Only Electrical / Optical Characteristics at TA=25℃ Parameter Symbol Min. Typ. IV 1.1 2.5 mcd 2θ1/2 180 deg Peak Emission Wavelength λP 585 nm Dominant Wavelength λd 588 nm Δλ 35 nm Forward Voltage VF 2.1 Reverse Current IR Capacitance C Luminous Intensity Viewing Angle Spectral Line Half-Width 15 Max. Unit 2.6 V 100 μA pF Test Condition IF = 10mA Note 1,4 Note 2 (Fig.6) Measurement @Peak (Fig.1) Note 3 IF = 20mA VR = 5V VF = 0 , f = 1MHz Note: 1. Luminous intensity is measured with a light sensor and filter combination that approximates the CIE (Commission International De L'Eclairage) eye-response curve. 2. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity. 3. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single wavelength which defines the color of the device. 4. The Iv guarantee should be added ±15% . Part No. : LTL-2251AT BNS-OD-C131/A4 Page : 3 of 4 LITE-ON ELECTRONICS, INC. Property of Lite-On Only Typical Electrical / Optical Characteristics Curves (25℃ Ambient Temperature Unless Otherwise Noted) Part No. : LTL-2251AT BNS-OD-C131/A4 Page : 4 of 4