SM2T3V3A Low voltage TRANSIL™ Features ■ Unidirectional Transil Diode ■ High peak pulse power : 200 W (10/1000 µs) ■ Stand-off voltage 3.3 V ■ Low clamping factor VCL/VBR ■ Fast response time ■ JEDEC registered package outline K A Description DO-216AA (STmite) The SM2T3V3A is a Transil diode designed specifically for portable equipment and miniaturized electronic devices subject to ESD transient overvoltages. It's low stand-off voltage makes it suitable for low voltage applications very sensitive to EOS and ESD events. Transil diodes provide high overvoltage protection by clamping action. Order code Part Number Marking SM2T3V3A MUL Absolute rating (limiting value) Symbol PPP P Parameter Peak pulse power dissipation(1) Power dissipation on infinite heatsink IFSM Non repetitive surge peak forward current Tstg Tj Storage temperature range Maximum operating junction temperature Tl Lead solder temperature (10 seconds duration) Value Unit Tj initial = Tamb 200 W Tamb = 100°C 2.5 W tp = 10 ms Tj initial = Tamb 25 A -65 to +175 150 °C 260 °C 1. 10/1000 µs pulse waveform TM: TRANSIL is a trademark of STMicroelectronics October 2005 Rev 1 1/5 www.st.com 5 SM2T3V3A 1 Characteristics 1 Characteristics 1.1 Thermal resistance Symbol 1.2 Parameter Unit Rth(j-l) Junction to leads 20 °C/W Rth(j-a) Junction to ambient on PCB with recommended pad layout 250 °C/W Electrical characteristics (Tamb = 25°C) Symbol Parameter I IF VRM Stand-off voltage. VBR Breakdown voltage. VCL Clamping voltage. IRM Leakage current @ VRM. IPP Peak pulse current. αT Voltage temperature coefficient VF Forward voltage drop Type SM2T3V3A IRM max @ VRM VCL VBR VF V RM V I RM I PP VBR min @ IR Note 1 VCL max @ IPP 10/1000 µs VCL max @ IPP 10/1000 µs αT max Note 2 C max Note 3 µA V V mA V A V A 10-4/°C pF 500 3.3 3.6 1 6.5 25 6.8 30 -5.3 2500 Note: 1 Pulse test tp < 50 ms 2 ∆VBR = αT * (Tamb - 25) + VBR (25 °C) 3 VR = 0 V, F = 1 MHz 2/5 Value SM2T3V3A 2 Package mechanical data (DO216-AA: STmite) 2 Package mechanical data (DO216-AA: STmite) DIMENSIONS REF. Millimetres Inches Min. Typ. Max. Min. Typ. Max. A 0.85 1.00 1.15 0.033 0.039 0.045 A1 -0.05 0.105 -0.002 0.002 b 0.40 0.65 0.016 0.025 b2 0.70 1.00 0.027 0.039 c 0.10 0.25 0.004 0.010 D 1.75 1.90 2.05 0.069 0.007 0.081 E 1.75 1.90 2.05 0.069 0.007 0.081 H 3.60 3.75 3.90 0.142 0.148 0.154 L 0.50 0.63 0.80 0.047 0.025 0.031 L2 1.20 1.35 1.50 0.047 0.053 0.059 L3 0.50 ref 0.019 ref R 0.07 0.003 R1 0.07 0.003 Figure 1. Package dimensions Figure 2. Recommended footprint L3 1.82 D 1.38 b2 b 2.03 0.75 1.10 H L2 L E R 0.50 C A A1 R1 3/5 0.71 0° to 6° Dimensions in mm SM2T3V3A 3 Ordering information 3 4 4/5 Ordering information Ordering type Marking Package Weight Base quantity Delivery mode SM2T3V3A MUL STmite 15.5 mg 12000 Tape & Reel Revision history Date Revision 10-Oct-2005 1 Description of changes First Issue SM2T3V3A 4 Revision history 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. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2005 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 5/5