IYD4251 Page 1 of 2 This lamp is a T-1 3/4, 5 mm Round. Chip PART NO. IYD4251 Lens Color Material Emitted Color GaAsP/GaP Yellow Yellow Diffused * Specifications subject to change without notice. Dimensions are in mm±0.25 unless stated otherwise. IDEA, Inc., 1351 Titan Way, Brea, CA 92821 Ph:714-525-3302, 800-LED-IDEA; Fax: 714-525-3304 0507 IYD4251 Page 2 of 2 Absolute Maximum Ratings at Ta = 25 °C Parameter Symbol Rating Units IF 25 mA Operating Temperature Topr -40 to +85 °C Storage Temperature Tstg -40 to +100 °C Soldering Temperature Tsol 260 ± 5 °C Power Dissipation Pd 85 mW IF (Peak) 160 mA VR 5 V Forward Current Pulse Forward Current (Duty 1/10 at 1 KHz) Reverse Voltage Electronic Optical Characteristics Parameter Symbol Min. Typ. Max. Units Condition IV 2 10 — mcd IF = 10 mA 2θ1/2 — 60 — deg IF = 20 mA Peak Wavelength λp — 585 — nm IF = 20 mA Dominant Wavelength λd — 590 — nm IF = 20 mA Spectrum Radiation Bandwidth ∆λ — 35 — nm IF = 20 mA Forward Voltage VF 1.7 2.0 2.4 V IF = 20 mA Reverse Current IR — — 10 µA VR = 5 V Luminous Intensity Viewing Angle * Specifications subject to change without notice. Dimensions are in mm±0.25 unless stated otherwise. IDEA, Inc., 1351 Titan Way, Brea, CA 92821 Ph:714-525-3302, 800-LED-IDEA; Fax: 714-525-3304 0507