Low Capacitance Transient Voltage Suppressors/ESD Protectors CM1249-04S9 Features • • • • • • Low I/O capacitance at 5pF typical In-system ESD protection to ±8kV contact discharge, per the IEC 61000-4-2 international standard Four channels of ESD protection Compact SOT-953 package saves board space and facilitates layout in space-critical applications Each I/O pin can withstand over 1000 ESD strikes RoHS (Restriction of Hazard Substances) compliant Applications • • • High-speed consumer electronic ports ESD protection of PC ports, including USB ports, serial ports, parallel ports, IEEE1394 ports, docking ports, proprietary ports, etc. Protection of interface ports or IC pins which are exposed to high ESD levels Electrical Schematic CM1249-04 5 1 4 2 VN 3 SOT- 953 Note: This drawing is not to scale. ©2009 SCILLC. All rights reserved. NMONTH 2009 – Rev. (whole #) Publication Order Number: MASTER/D CM1249-04S9 PIN DESCRIPTIONS LEADS NAME (Refer to package / pinout diagrams) CHx (Refer to package / pinout diagrams) VN DESCRIPTION The cathode of the respective TVS diode, which should be connected to the node requiring transient voltage protection. The anode of the TVS diodes. Ordering Information PART NUMBERING INFORMATION Lead-free Finish Leads Package Ordering Part Number1 Part Marking 5 SOT953 CM1249-04S9 L9 Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER Storage Temperature Range Rev. 2 | Page 2 of 7 | www.onsemi.com RATING UNITS –65 to +150 °C CM1248-04S9 STANDARD OPERATING CONDITIONS PARAMETER Operating Temperature RATING UNITS –40 to +85 °C ELECTRICAL OPERATING CHARACTERISTICS (NOTE 1) SYMBOL PARAMETER CIN CONDITIONS Channel Input Capacitance TA = 25°C, 0VDC, 1MHz ΔC Differential Channel I/O to GND Capacitance TA = 25°C, 2.5VDC, 1MHz ILEAK Leakage Current VIN = 3.5VDC, TA = 25°C VSIG Small Signal Clamp Voltage Positive Clamp Negative Clamp I = 5mA, TA = 25°C I = –5mA, TA = 25°C IN VESD RD ESD Withstand Voltage Contact Discharge per IEC 610004-2 standard Human Body Model, MIL-STD-883, Method 3015 Diode Dynamic Resistance Forward Conduction Reverse Conduction Note 1: Note 2: Note 3: Note 4: MIN TYP MAX UNITS 5 7 pF 0.14 6.1 –1.5 pF 0.75 μA 8.5 –0.4 V V Notes 3 and 4; TA = 25°C ±8 kV Notes 2 and 4; TA = 25°C ±15 kV TA = 25°C; Note 2 0.7 2.1 All parameters specified at TA = –40°C to +85°C unless otherwise noted. Human Body Model per MIL-STD-883, Method 3015, CDischarge = 100pF, RDischarge = 1.5KΩ, VN grounded. Standard IEC 61000-4-2 with CDischarge = 150pF, RDischarge = 330Ω, VN grounded. These measurements performed with no external capacitor on CH. Rev. 2 | Page 3 of 7| www.onsemi.com Ω Ω CM1249-04S9 Performance Information Diode Capacitance Typical diode capacitance with respect to positive TVS cathode voltage (reverse voltage across the diode) is given in Diode Capacitance vs. Reverse Voltage . Figure 1. Diode Capacitance vs. Reverse Voltage Typical High Current Diode Characteristics Measurements 0.7ms. are made in pulsed mode with Rev. 2 | Page 4 of 7 | www.onsemi.com a nominal pulse width of CM1248-04S9 Mechanical Details SOT-953 Mechanical Specifications The 5-pin SOT-953 package dimensions are shown below. PACKAGE DIMENSIONS TOP VIEW Package SOT-953/963 Leads 5 D Millimeters Inches 5 Dim. Min Nom Max Min Nom Max A 0.400 0.450 0.500 0.016 0.018 0.020 b 0.100 0.150 0.200 0.004 0.006 0.008 0.20 4 E CD 1 0.20 0.050 0.100 0.150 0.002 0.004 0.006 D 0.950 1.000 1.050 0.037 0.039 0.041 E 0.750 0.800 0.850 0.029 0.031 0.033 E1 0.950 1.000 1.050 0.037 0.039 0.041 E1 2X 0.20 c C A-B 2X c 2 e 2X 3 b L1 SIDE VIEW A 0.10 e 0.350 BSC 0.014 BSC L 0.050 0.100 0.150 0.002 0.004 0.006 L1 0.125 0.150 0.175 0.005 0.006 0.007 # per tape and reel C SEAT ING PLANE C END VIEW c 8000 pieces L Controlling dimension: millimeters Package Dimensions for SOT-953 Rev. 2 | Page 5 of 7| www.onsemi.com CM1249-04S9 Tape and Reel Specifications PART NUMBER PACKAGE SIZE (mm) POCKET SIZE (mm) B0 X A0 X K0 TAPE WIDTH W REEL DIAMETER QTY PER REEL P0 P1 CM1249-04S9 1.00 X 0.80 X 0.45 1.16 X 1.16 X 0.63 8mm 178mm (7") 8000 4mm 4mm Rev. 2 | Page 6 of 7 | www.onsemi.com CM1248-04S9 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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