IMBD4448 Small Signal Diodes FEATURES SOT-23 ♦ Silicon Epitaxial Planar Diodes .122 (3.1) .118 (3.0) .016 (0.4) .056 (1.43) .052 (1.33) especially suited for automatic insertion. ♦ This diode is also available in other case styles including: the DO-35 case with the type designation 1N4448, the Mini-MELF case with the type designation LL4448, and the SOD-123 case with the type designation 1N4448W .016 (0.4) .045 (1.15) .037 (0.95) .037(0.95) .037(0.95) .007 (0.175) .005 (0.125) 2 max. .004 (0.1) 1 ♦ Fast switching diode in case SOT-23, Top View 3 MECHANICAL DATA .102 (2.6) .094 (2.4) .016 (0.4) Dimensions in inches and (millimeters) Case: SOT-23 Plastic Package Weight: approx. 0.008 g Marking A3 3 Top View 1 2 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 °C ambient temperature unless otherwise specified Symbol Value Unit Reverse Voltage VR 75 V Peak Reverse Voltage V RM 100 V Rectified Current (Average) Half Wave Rectification with Resist. Load at Tamb = 25 °C and ≥ f ≥ 50 Hz I0 1501) mA Surge Forward Current at t < 1 s and Tj = 25 °C IFSM 500 mA Power Dissipation at Tamb = 25 °C Ptot 3501) mW Junction Temperature Tj 150 °C Storage Temperature Range TS –65 to +150 °C 1) Device on fiberglass substrate, see layout 4/98 IMBD4448 ELECTRICAL CHARACTERISTICS Ratings at 25 °C ambient temperature unless otherwise specified Symbol Min. Typ. Max. Unit Forward Voltage at IF = 5 mA at IF = 100 mA VF VF 0.62 – – – 0.72 1 V V Leakage Current at VR = 70 V at VR = 70 V, Tj = 150 °C at VR = 25 V, Tj = 150 °C IR IR IR – – – – – – 2.5 50 30 µA µA µA Capacitance at VF = VR = 0 Ctot – – 4 pF Reverse Recovery Time from IF = 10 mA to IR = 10 mA VR = 6 V, RL = 100 Ω trr – – 4 ns Thermal Resistance Junction to Ambient Air RthJA – – 4501) K/W 1) Device on fiberglass substrate, see layout .30 (7.5) .12 (3) .04 (1) .08 (2) .04 (1) .08 (2) .59 (15) .03 (0.8) .47 (12) 0.2 (5) .06 (1.5) Dimensions in inches (millimeters) .20 (5.1) Layout for RthJA test Thickness: Fiberglass 0.059 in (1.5 mm) Copper leads 0.012 in (0.3 mm) RATINGS AND CHARACTERISTIC CURVES IMBD4448 RATINGS AND CHARACTERISTIC CURVES IMBD4448