B5817W/B5819W Surface Mount Schottky Barrier Diodes SMALL SIGNAL SCHOTTKY DIODES 1.0 AMPERES 20-40 VOLTS Features: *Low Forward Voltage *Very Small Conduction Losses *Schottky Barrier Diodes Encapsulated in a SOD-123 Package 1 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. 2 SOD-123 SOD-123 Outline Dimensions Unit:mm SOD-123 Dim A B C D E H J K Min Max 2.55 2.85 1.40 1.80 0.95 1.35 0.50 0.70 0.30 REF 0.10 0.15 3.55 3.85 PIN 1. CATHODE 2. ANODE WEITRON http://www.weitron.com.tw B5817W/B5819W Maximum Ratings ( TA=25 C Unless otherwise noted) Characteristic Symbol Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage VRRM VRWM VR B5817W VR(RMS) IFAV RMS Reverse Voltage Average Rectified Output Current B5819W Unit 20 40 V 14 28 1.0 V A Non-Repetitive Peak Forward Surge Current 8.3ms single half sine-wave superimpose on rated load (JEDEC Method) IFSM 25 A Typical thermal Resistance junction to Ambient Note (1) R JA 244 C/W TJ TSTG -55 to +125 C Operating & Storage Temperature Range E lectr ical C har acter istics Characteristic Minimum Reverse Breakdown Voltage (2) (IR=500 A) ( T A =25 C Unles s otherwis e noted) Symbol B5817W V(BR)R B5819W Unit 20 40 V VF 0.400 0.450 0.450 0.550 V IR 500 Forward Voltage Note(2) IF=0.5A Tj=25 C IF=1.0A Tj=25 C Reverse Current Note(2) VR=20V, Tj=25 C VR=40V, Tj=25 C A 500 Cj Junction Capacitance f=1MHZ, VR=10VDC PF 170 Device Marking Item Marking Eqivalent Circuit diagram B5817W BK , SJ 1 2 B5819W BL , SL 1 2 Note: 1. Valid provited that leads are kept at ambient tememperature. 2. Pulse Test : Pulse width = 300 s, Duty Cycle 2% WEITRON http://www.weitron.com.tw B5817W/B5819W 10 B5819W 1.4 IF, INSTANTNEOUS FWD CURRENT (A) IO, AVERAGE RECITIFIED CURRENT (A) 1.8 1.2 1.0 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 B5817W 1.0 0.1 0.01 0 0.2 0.4 1.0 TL, LEAD TEMPERATURE ( C) Fig, 2 Typical Forward Characterictics Cj , CAPACITANCE (pF) 100 10 1.0 0 5 10 15 20 VR.REVERSE VOLTAGE (V) Fig, 3 Typ, Junction Capacitance vs. Reverse Voltage http://www.weitron.com.tw 0.8 FIG, 1 Forward Current Derating Curve 1000 WEITRON 0.6 VF, INSTANTANEOUS FORWARD VOLTAGE (V)