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| WSD421 WSD425 Surface Mount Schottky Barrier Diode SCHOTTKY BARRIER RECTIFIERS 100mAMPERES 40VOLTS Features: *High Reliability *Low Voltage *Small Surface Mounting Type Mechanical Data: *Case : Molded Plastic *Terminals : Solderable per MIL-STD-202,Method 208 *Polarity : See Diagrams Below *Weight : 0.008 grams (approx.) *Mounting Position : Any 1 2 3 SOT-23 SOT-23 Outline Dimensions A Unit:mm TOP VIEW B C E G H D K L J M Dim Min Max A 0.35 0.51 B 1.19 1.40 C 2.10 3.00 D 0.85 1.05 E 0.46 1.00 G 1.70 2.10 H 2.70 3.10 J 0.01 0.13 K 0.89 1.10 L 0.30 0.61 M 0.076 0.25 WEITRON http://www.weitron.com.tw WSD421 WSD425 Maximum Ratings (TJ=25 C Unless otherwise noted) Characteristic Peak Reverse Voltage DC Reverse Voltage Mean Rectifying Current Peak Forward Surge Current (2) Operating Junction Temperature Range Storage Temperature Range Symbol VRM VR Io IFSM TJ Tstg Limits 40 40 0.1 1.0 125 -40 to +125 Unit Volts Volts A A C C Electrical Characteristics Characteristic Forward Voltage(I F =100mA) Forward Voltage(I F =10mA) Reverse Cureent(VF =10V) (TA=25 C Unless otherwise noted) Symbol VF1 VF2 IR CT Min - Typ 6.0 Max 0.55 0.34 30 - Unit Volts Volts uA PF Capacitance Between Terminals (V R =10V, f=1MHz) NOTE: 2. 60HE for 1 Device Marking Item Marking LV3 KL3 Eqivalent Circuit diagram 3 3 1 1 2 WSD421 WSD425 WEITRON http://www.weitron.com.tw WSD421 WSD425 Electrical Characteristic Curves (Ta=25 C) 1 10m Typ. pulse measurement Ta =125 C Typ. pulse measurement 100m 1m FORWARD CURREN T : I F (A) REVERSE CURRENT : IR (A) 10m 100 75 C 12 5 C 75 C 25 C -25 C 1m Ta= 10 25 C 100 1 10 0.1 0 5 10 15 20 25 30 35 0 0.1 0.2 0.3 0.4 0.5 F 0.6 0.7 REVERSE VOLTAGE : V R (V) FORWARD VOLTAGE : V (V) FIG.1 Forward Characteristics FIG.2 Reverse Characteristics 100 CAPACITANCE BETWEEN TERMINALS : C T (pF) 100 10 80 Io CURRENT (%) 60 40 20 1 0.1 0 5 10 15 20 25 0 0 25 50 75 100 125 REVERSE VOLTAGE : VR (V) AMBIENT TEMPERATURE : Ta ( C) FIG.3 Capacitance Between Terminals Characteristics FIG.4 Derating Curve (Mounting on Glass Epoxy PCBS) WEITRON http://www.weitron.com.tw |
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