521-9640

2mm x 4mm Discrete LED Rectangular - Bi-Color Non-Tinted, Diffused 521-9640, -9743 PART NO. 521-9640 2.03 [.080] COLOR Yellow/Green Red/Green 7.01 [.276] 1.50 [.059] GREEN CATHODE 2.54 [.100] 521-9743 3.99 [.157] 25.4 [1.00] .609 [.024] Dimensions in mm [inches] Yellow/Green Red/Green ABSOLUTE MAXIMUM RATINGS (TA=25°C) Power Dissipation (mW) Forward Current (mA) Derating (mA/°C) From 50°C Peak Current (mA) Pulse width = 100 µs -9640 60/100 20/30 .25/.4 80/120 -55/+100 -55/+100 -9743 100/100 30/30 .4/.4 120/120 -55/+100 -55/+100 Operating Temperature (°C) Storage Temperature (°C) Soldering Temperature Solder Adherence per MIL-STD-202E, Method 208C 260°C, 5 seconds, 1.6 mm from case 5 Yellow/Green Red/Green OPERATING CHARACTERISTICS (TA=25°C) Luminous Intensity (mcd) IF=20mA Peak Wavelength (nm) λ Peak Viewing Angle (2Θ ½) Forward Voltage (V) IF=20mA Min. Typical Typical Typical Typical Max. -9640 .7/1.1 2.5/3.7 585/565 140° 2.1/2.1 2.8/2.8 -9743 1.7/1.7 5.6/5.6 630/565 140° 2/2.1 2.8/2.8 Θ  is the off axis angle at which the luminous intensity is half the axial luminous intensity Dialight Corporation • 1501 Route 34 South • Farmingdale, NJ 07727 • TEL: (732) 919-3119 • FAX: (732) 751-5778 •www.dialight.com 5-15