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| TEL-2A20 VCSEL for gener al pur pose FEATURES: * Epoxy molded with round emission surface. * Ceramic heat sink. * Low dependence of power output over temperature. * Miniature, easy for mounting. * Driving current between 8 to 15 mA. * Symmetrical beam. ELECTRO-OPTICAL CHARACTERISTICS: PARAMETERS SYMBOL MIN TYP MAX UNIT TEST CONDITIONS(1) Threshold Current Output Power Operating Current Slope Efficiency Wavelength Forward Voltage Breakdown voltage Series Resistance Beam Divergence Ith Po IOP P VF VBD RS 1 5 2 12 10 4 mA mW mA 820 2 10 0.20 850 2.2 15 40 7 870 2.5 mW/mA nm V V degree IF =15 mA(2) Adjustable to establish 1.5 mW output power IF=15 mA(3) IF=15 mA IF=15 mA IR=10 A IF =15 mA IF=15 mA(4) Notes: 1. All parameters except mentioned are measured at IF=15 mA, 25C, CW. 2. Higher power can be provided under request. 3. Slope efficiency is defined as P/(15-Ith) at 25C. 4. Beam divergence is defined as the angle of light intensity at Full Width at Half Maximum (FWHM). THERMAL CHARACTERISTICS: PARAMETERS SYMBOL MIN TYP MAX UNIT TEST CONDITIONS Thermal Resistance Ith Temperature Variation VF Temperature Coefficient Temperature Coefficient P Temperature Coefficient Rth Ith VF/T /T P/T 900 -1.5 -3.0 -0.25 0.07 1.5 C /W mA mV/C %/C nm/C TA=25C TA=0~70C TA=0~70C, IF=15 mA TA=0~70C, IF=15 mA TA=0~70C, IF=15 mA ABSOLUTE MAXIMUM RATINGS: PARAMETERS MIN MAX UNIT CONDITIONS Storage Temperature Operating Temperature Lead Solder Temperature Continuous Forward Current Continuous Reverse Voltage -40 -20 100 85 260 40 10 C C C mA V 5 seconds TEL-2A20 Fig. 1 Typical Optical Characteristics Typical Output Power vs Current 4 4 Fig. 2 Typical Electrical Characteristics Typical Voltage vs Current Out put Po wer (m W) 3 3 Volt age (V) 2 2 1 1 Ith 0 0 5 10 15 20 0 0 5 10 15 20 Current (mA) Current (mA) Fig. 3 Spectrum When Driving Current 15 mA Fig. 4 Temperature Dependence of Threshold Current Typical Threshold Current vs Ambient Temperature 10 9 Threshold Cu rrent (m A) 8 7 6 5 4 3 2 1 0 -40 -20 0 20 40 60 o 80 100 Ambient Temperature ( C) 3 transverse modes typically. OUTLINE DIMENSIONS: * Unit: mm WARNING: The VCSEL is a class IIIb laser in the safety standard ANSI Z136.1 and should be treated as a potential eye hazard. |
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