CHENMKO ENTERPRISE CO.,LTD CH461FPT SURFACE MOUNT SCHOTTKY BARRIER DIODE VOLTAGE 25 Volts CURRENT 0.7 Ampere APPLICATION * Low power rectification for switching power supply SC-70/SOT-323 FEATURE * Small surface mounting type. (SC-70/SOT-323) * Ultra low VF. (VF=0.45V Typ. at 0.7A) * IF=0.7A guaranteed desite the size (2) (3) CONSTRUCTION (1) 1.3±0.1 0.65 2.0±0.2 0.65 0.3±0.1 1.25±0.1 * Silicon epitaxial planar MARKING * 3F 0.8~1.1 0.05~0.2 0~0.1 0.1Min. CIRCUIT (1) (2) 2.0~2.45 Dimensions in millimeters (3) SC-70/SOT-323 MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) SYMBOL CH461FPT UNITS Maximum Recurrent Peak Reverse Voltage RATINGS VRRM 25 Volts Maximum RMS Voltage VRMS 18 Volts Maximum DC Blocking Voltage VDC 20 Volts IO 0.7 Amps IFSM 3.0 Amps pF Maximum Average Forward Rectified Current Peak Forward Surge Current at 8.3 mSec single half sine-wave Typical Junction Capacitance between Terminal (Note 1) CJ 20 Maximum Operating Temperature Range TJ +125 o C TSTG -40 to +125 o C Storage Temperature Range ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) SYMBOL CH461FPT UNITS Maximum Instantaneous Forward Voltage at IF= 700mA VF 0.49 Volts Maximum Average Reverse Current at VR= 20V IR 200 uAmps CHARACTERISTICS NOTES : 1. Measured at 1.0 MHZ and applied reverse voltage of 10.0 volts. 2. ESD sensitive product handling required. 2002-5 RATING CHARACTERISTIC CURVES ( CH461FPT ) FIG. 1 - FORWARD CHARACTERISTICS FIG. 2 - REVERSE CHARACTERISTICS 1000 REVERSE CURRENT, (mA) 1 100m 25 o C -25 o C 5 o 2 =1 Ta 10m C C o 75 FORWARD CURRENT, (A) 10 1m 0.1m 0.1 0.2 0.3 0.4 0.5 o 75 C 1 100u o 25 C 10u o -25 C 1u 0.6 30 50 40 60 FIG. 4 - FORWARD POWER DISSIPATION CHARACTERISTICS FORWARD POWER DISSIPATION, (W) 100 10 1 5 10 15 20 25 30 35 40 FIG. 5 - DERATING CURVE BY AMBIENT ( ON GLASS EPOXY PCBS ) DC IF IO D=0.8 sine 0.8 D=0.5 Tp 0.6 D=0.3 T D=Tp/T VR=VRM/2 D=0.2 0.4 D=0.1 D=0.05 0.2 0 25 50 75 AMBIENT TEMPERATURE, (oC) 0.6 100 125 70 DC D=0.8 0.5 0.4 D=0.05 0.3 sine D=0.3 D=0.2 D=0.1 D=0.5 IF IO 0.2 Tp 0.1 0 0 0.2 0.4 0.6 0.8 T D=Tp/T Tj=Tj Max. 1.0 AVERAGE FORWARD CURRENT, (A) REVERSE VOLTAGE, (V) 0 20 FIG. 3 - TYPICAL JUNCTION CAPACITANCE 1000 1.0 10 REVERSE VOLTAGE, (V) f=1MHz 0 0 FORWARD VOLTAGE, (V) 10000 JUNCTION CAPACITANCE , (pF) o Ta=125 C 10 0.1u 0 AVERAGE FORWARD CURRENT, (A) 100 1.2