BAT 47 BAT 48 SMALL SIGNAL SCHOTTKY DIODE DESCRIPTION General purpose, metal to silicon diodes featuring very low turn-on voltage and fast switching. These devices have integrated protection against excessivevoltage such as electrostaticdischarges. DO 35 (Glass) ABSOLUTE RATINGS (limiting values) Symbol VRRM Parameter Repetitive Peak Reverse Voltage Forward Continuous Current* Ta = 25 °C IFRM Repetitive Peak Fordward Current* tp ≤ 1s δ ≤ 0.5 IFSM Surge non Repetitive Forward Current* IF BAT47 BAT48 Unit 20 40 V 350 mA 1 A tp = 10ms 7.5 A tp = 1s 1.5 Ta = 25 °C 330 mW - 65 to + 150 - 65 to + 125 °C °C 230 °C Value Unit 300 °C/W Ptot Power Dissipation* Tstg Tj Storage and Junction Temperature Range TL Maximum Temperature for Soldering during 10s at 4mm from Case THERMAL RESISTANCE Symbol R th(j-l) Test Conditions Junction-ambient* * On infinite heatsink with 4mm lead length August 1999 Ed: 1A 1/5 BAT 47/BAT 48 ELECTRICAL CHARACTERISTICS STATIC CHARACTERISTICS Symbol V(BR) V F* Test Conditions IR = 10µA 20 IR = 25µA BAT48 40 Tj = 25°C IF = 0.1mA All Types Typ. Max. 0.25 0.3 Tj = 25°C IF = 10mA 0.4 BAT47 0.8 Tj = 25°C IF = 300mA 1 BAT48 0.5 Tj = 25°C IF = 200mA 0.75 Tj = 25°C IF = 500mA 0.9 Tj = 25°C VR = 1.5V V 0.5 Tj = 25°C IF = 150mA Tj = 25°C IF = 50mA Unit V Tj = 25°C IF = 1mA Tj = 25°C IF = 30mA IR* Min. BAT47 All Types 1 Tj = 60°C µA 10 VR = 10V Tj = 25°C BAT47 4 20 Tj = 60°C VR = 20V Tj = 25°C 10 30 Tj = 60°C VR = 10V Tj = 25°C BAT48 2 15 Tj = 60°C VR = 20V Tj = 25°C 5 25 Tj = 60°C VR = 40V Tj = 25°C 25 50 Tj = 60°C DYNAMIC CHARACTERISTICS Symbol C Test Conditions Tj = 25°C VR = 0V Min. f = 1MHz 20 Tj = 25°C * Pulse test: tp ≤ 300µs δ < 2%. 2/5 IF = 10mA Max. Unit pF 12 Tj = 25°C VR = 1V trr Typ. VR = 1V irr = 1mA RL = 100Ω 10 ns BAT 47/BAT 48 Figure 1. Forward current versus forward voltage at different temperatures (typical values). Figure 2. Forward current versus forward voltage (typical values). Figure 3. Reverse current versus junction temperature. Figure 4. Reverse current versus continuous reverse voltage (typical values). 3/5 BAT 47/BAT 48 Figure 5. Capacitance C versus reverse 4/5 BAT 47/BAT 48 PACKAGE MECHANICAL DATA DO 35 Glass DIMENSIONS B A note 1 E B /C O REF. O /D note 2 Inches Min. Max. Min. Max. A 3.05 4.50 0.120 0.177 B 1.53 2.00 0.060 0.079 C 12.7 D 0.458 E note 1 O /D Millimeters 0.500 0.558 0.018 0.022 Cooling method: by convection and conduction. Marking: clear, ring at cathode end. Weight: 0.015g Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Spec ifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorizedfor use as critical components in life support devices or systems withoutexpress written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 1999 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com 5/5