BAS19 THRU BAS21 Shanghai Lunsure Electronic Technology Co.,Ltd Tel:0086-21-37185008 Fax:0086-21-57152769 Features Small l Ideally Suited for Automatic Insertion l 150oC Junction Temperature l Fast Switching speed l Epitaxial Planar Die Construction Signal Diodes 250mW Mechanical Data l Case: SOT-23, Molded Plastic SOT-23 l Weight: 0.008 grams ( approx.) l Marking Code A D Continuous Reverse Part Marking Voltage Number VR (V) BAS19 BAS20 BAS21 JP JR JS 100 150 200 Repetitive Peak Reverse Voltage VRRM (V) 120 200 250 C F B E H G J K DIMENSIONS Maximum Ratings @ 25 C Unless Otherwise Specified o Parameter Symbol Value Non-repetitive @ t=1us 2.5 IFSM Peak Reverse Voltage @ t=1s 0.5 IF(AV) Average Rectified Forward Current 200(1) IF Forward DC Current at Tamb=25oC 200(2) IFRM Repetitive Peak Forward Current 625 Unit A mA mA DIM A B C D E F G H J K INCHES MIN .110 .083 .047 .035 .070 .018 .0005 .035 .003 .015 MAX 3.04 2.64 1.40 1.03 2.05 .60 .100 1.12 .180 .51 NOTE .031 .800 .035 .900 .079 2.000 Notes: (1) Measured under pulse conditions; Pulse time = tp <= 0.3ms (2) Device on fiberglass substrate, See layout on next page MM MIN 2.80 2.10 1.20 .89 1.78 .45 .013 .89 .085 .37 Suggested Solder Pad Layout mA Ptot 250 mW Power Dissipation up to Tamb=25oC Thermal Resistance Junction to RqJA 430 oC/W Ambient Operating & Storage Temperature Tj, TSTG -65~150 oC MAX .120 .098 .055 .041 .081 .024 .0039 .044 .007 .020 .037 .950 www.cnelectr.com .037 .950 inches mm BAS19 thru BAS21 Electrical Characteristics (TJ = 25°C unless otherwise noted) Parameter Symbol Test Condition IF = 100mA IF = 200mA Min Typ Max Unit — — — — 1.0 1.25 V V Forward Voltage VF Leakage Current IR VR = VRmax VR = VRmax; Tj = 150°C — — — — 100 100 nA µA Dynamic Forward Resistance rf IF = 10mA — 5 — Ω Ctot VR = 0 f = 1MHz — — 5 pF trr IF = 30mA, IR = 30mA Irr = 3mA, RL = 100Ω — — 50 ns Capacitance Reverse Recovery Time (see figures) (1)Device on fiberglass substrate, see layout (SOT-23). Test Circuit and Waveforms (BAS19, BAS20, BAS21) Ω Input signal Test circuit Waveforms; IR = 3 mA Input Signal - total pulse duration duty factor rise time of reverse pulse reverse pulse duration tp(tot) = 2µs δ = 0.0025 tr = 0.6ns tp = 100ns tr = 0.35ns C < 1pF Oscilloscope - rise time - cicuit capitance* Output signal *C = oscilloscope input capactitance + parasitic capacitance Layout for RΘJA test Thickness: Fiberglass 0.059 in. (1.5 mm) Copper leads 0.012 in. (0.3 mm) 0.30 (7.5) 0.12 (3) .04 (1) .08 (2) .04 (1) .08 (2) 0.59 (15) 0.03 (0.8) 0.47 (12) 0.2 (5) Dimensions in inches (millimeters) 0.06 (1.5) 0.20 (5.1) www.cnelectr.com