B5817WS WEITRON | Alldatasheet
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Technical content
Surface Mount Schottky Barrier Diodes Features: *Low Forward Voltage *Very Small Conduction Losses *Schottky Barrier Diodes Encapsulated in a SOD-323 Package 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. WEITRON http://www.weitron.com.tw B5817WS/B5819WS SMALL SIGNAL SCHOTTKY DIODES
1.0 AMPERES
- CATHODE 2. ANODE
Maximum Ratings ( TA=25°C Unless otherwise noted) Characteristic Reverse VoltagePeak Repetitive Working Peak Reverse Voltage DC Blocking Voltage Typical thermal Resistance junction to Ambient Note (1) Symbol VRRM VRWM VR VR(RMS) IFSM PD B5817WS B5819WS Unit 20 40 V V A mW A Operating & Storage Temperature Range TJ TSTG -55 to +150 Electrical Characteristics ( TA=25 °C Unless otherwise noted) Characteristic Symbol V(BR)R B5817W B5819W Unit 40 V Junction Capacitance f=1MHZ, VR=4VDC Device Marking Item Marking Eqivalent Circuit diagram 21B5817WS B5819WS SJ SL 625 200 Non-Repetitive Peak Forward Surge Current 8.3ms single half sine-wave superimpose on rated load (JEDEC Method) RMS Reverse Voltage Power Dissipation 14 28 4.0 Reverse Current Note(2) IR mA IF=1A Tj=25°C IF=3A Tj=25°C VF 0.45 0.75 0.60 0.90 V Average Rectified Output Current IFAV 1.0 °C/W Forward Voltage Note(2) VR=20V, Tj=25°C VR=40V, Tj=25°C Cj 120 PF Note: 1. Valid provited that leads are kept at ambient tememperature. 2. Pulse Test : Pulse width = 300µs, Duty Cycle ≤ 2% WEITRON http://www.weitron.com.tw (2)Minimum Reverse Breakdown Voltage (IR=1mA) R JA 1.0 - - 1.0 B5817WS/B5819WS 2/3 03-Jun-05
http://www.weitron.com.tw 0 25 50 75 100 125 150 TL, LEAD TEMPERATURE ( C) FIG, 1 Forward Current Derating Curve IO, A VERAGE RECITIFIED CURRENT (A) VR.REVERSE VOLTAGE (V) Fig, 3 Typ, Junction Capacitance vs. Reverse Voltage 0 5 10 15 20 1000 100 1.0 Cj , CAPACITANCE (pF) VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig, 2 Typical Forward Characterictics B5819WSB5817WS 1.0 0.1 0.01IF, INSTANTNEOUS FWD CURRENT (A) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.8 B5817WS/B5819WS 3/3 03-Jun-05