B0520LWS_09

B0520LWS / B0540WS Surface Mount Schottky Barrier Diode P b Lead(Pb)-Free Features: * Low Forward Voltage Drop * Guard Ring Construction forTransient Protection * High Conductance SCHOTTKY DIODE 500 mAMPERS 20-40 VOLTS Mechanical Data: * Case: SOD-323 * Plastic Material –UL Recognition Flammability Classification 94V-O * Leads: Solderable per MIL-STD-202, Method 208 * Polarity: Cathode Band * Weight: 0.004 grams(approx.) SOD-323 SOD-323 Outline Demensions MILLMETERS Min Max 1.60 1.80 1.15 1.35 0.80 1.00 0.25 0.40 0.15 REF 0.00 0.10 0.089 0.177 2.30 2.70 PIN 1.CATHODE 2.ANODE Unit:mm Dim A B C D E H J K http://www.weitron.com.tw WEITRON 1/3 Rev.A 23-Jun-09 B0520LWS / B0540WS Maximum Ratings ( TA=25°C Unless otherwise noted) Characteristic Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Average Rec Current Symbol VRRM VRWM VR VR(RMS) IO IFSM Pd RθJA TJ TSTG dv/dt B0520LWS 20 14 500 5.5 410 244 +125 B0540WS 40 28 Unit V V mA A mW °C/W °C °C V/µs Peak Forward Surge Current Power Dissipation Thermal Resistance junction to Ambient Operating Temperature Range Storage Temperature Range Voltage Rate of Change -65 to +125 1000 Electrical Characteristics Characteristic Reverse Breakdown Voltage IR=250µA IR=130µA IR=20µA Forward Voltage IF=0.1A IF=0.5A IF=1.0A Reverse Current VR=10V VR=15V VR=20V VR=30V VR=40V Capacitance between terminals VR=1.0V, f=1.0MHz Reverse Recovery Time IF=IR=10mA Irr=0.1 I I IR , RL =100W (TA=25˚C Unless otherwise noted) Symbol V(BR)R B0520LWS 20 B0540WS Unit 40 0.510 0.62 10 20 170 V VF 0.3 0.385 75 250 - V IR µA CT trr pF ns 4.0 Device Marking Item B0520LWS B0540WS Marking SD SF Eqivalent Circuit diagram 1 2 WEITRON http://www.weitron.com.tw 2/3 Rev.A 23-Jun-09 B0520LWS / B0540WS Electrical Characteristic curves(TA=25˚C) 1.0 10 IF, INSTANTANEOUS FWD CURRENT (A) IO, AVERAGE RECTIFIED CURRENT (A) B0540WS 0.75 1.0 0.50 0.1 0.25 B0520LWS 0 0.01 0 25 50 75 100 125 150 0 0.2 0.4 0.6 0.8 1.0 TL, LEAD TEMPERATURE (°C) Fig. 1 Forward Current Derating Curve VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics 1000 f = 1MHz CT, TOTAL CAPACITANCE (pF) 100 10 1.0 0 5 10 15 20 VR, REVERSE VOLTAGE (V) Fig. 3 Typ. Total Capacitance vs Reverse Voltage WEITRON http://www.weitron.com.tw 3/3 Rev.A 23-Jun-09