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| WEITRON Surface Mount Schottky Barrier Diodes Features: *Low Power Rectification *Small Surface Mounting Type *Low I R (IR =50nA Typ) *High Reliability Description: These schottky barrier diodes are designed for high speed switching applications circuit protection, and voltage clamping, Extremely low forward voltage reduces conduction loss, Miniature surface mount package is excellent for hand held and portable applications where space is limited. WSD420 SMALL SIGNAL SCHOTTKY DIODES 100m AMPERES 40 VOLTS 3 1 2 SOT-23 SOT-23 Outline Dimensions 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 Unit:mm A TOP VIEW B C E G H D K L J M WEITRON hpp://www.weitron.com.tw WSD420 Maximum Ratings Peak Reverse Voltage DC Reverse Voltage Mean Rectifying Current Peak Forward Surge Current (1) Junction Temperature Storage Temperature (TA =25 C Unless Otherwise Note) WE IT R ON Characteristic Symbol VRM VR IO I FSM Tj TSTG Limits 40 40 100 1 125 -40 + 125 Unit V V mA A C C Electrical Characteristics Characteristic Forward Voltage, I F =10mA Reverse Current, V F =10V (T A =25 C Unless Otherwise Note) Symbol VF IR CT Min - Typ 6.0 Max 0.45 1 Unit V uA PF Capacitance Between Terminals V R =10V f=1MHz Note: 1. 60Hz for 1 - Device Marking Item Marking LV3 Eqivalent Circuit diagram 3 1 WSD420 WEITRON http://www.weitron.com.tw WSD420 1 1m WE IT R ON REVERSE CURRENT : I R (A) FORWARD CURRENT : I O (A) 100m 100 T a=125u C C uC =1 2 75 Ta 25 uC 10m 10 75u C 5 25 uC 1m 1 25u C 100 100n 10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 10n 0 5 10 15 20 25 30 35 FORWARD VOLTAGE : VF (V) REVERSE VOLTAGE : VR (V) FIG1. Forward characteristics FIG2. Reverse characteristics CAPACITANCE BETWEEN TERMINALS : C T (pF) 100 SURGE CURRENT : I surge (A) 50 T a=25u C 20 20 10 5 I s urge 10 P ULS E WIDT H 2 0 P =50% 0 2 4 6 8 10 12 14 0 100 1m 10m 100m 1 REVERSE VOLTAGE : VR (V) PULSE WIDTH (sec) FIG3. Capacitance between terminals characteristics FIG4. Surge current characteristics 100 Io CURRENT (%) 80 60 40 20 0 0 25 50 75 100 125 AMBIENT TEMPERATURE : Ta( C) FIG5. Derating curve (mounting on glass epoxy PCBs) WEITRON http://www.weitron.com.tw |
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