LESHAN RADIO COMPANY, LTD. Dual transil array for ESD protection The LESD6V8T1G is a dual monolithic voltage suppressor designed to protect components which are connected to data and transmission lines against ESD. It clamps the voltage just above the logic level supply for positive transients, and to a diode drop below ground for negative transients. It can also work as bidirectionnal suppressor by connecting only pin1 and 2. LESD6V8T1G SC-89 Specification Features • • • • • Low Leakage < 1 A @ 5 Volt Breakdown Voltage: 6.4 – 7.2 Volt @ 5 mA Low Capacitance (40 pF typical) ESD Protection Meeting 61000–4–2 Level 4 and 16 kV Human Body Model We declare that the material of product compliance with RoHS requirements. Mechanical Characteristics • • • • Void Free, Transfer–Molded, Thermosetting Plastic Case Corrosion Resistant Finish, Easily Solderable Package Designed for Optimal Automated Board Assembly Small Package Size for High Density Applications ORDERING INFORMATION Device Marking Shipping LESD6V8T1G 68 3000/Tape & Reel MAXIMUM RATINGS (TA = 25°C unless otherwise noted) Rating Symbol Value Unit Peak Power Dissipation @ 8 x 20 s (Note 1) Ppk 75 Watts Steady State Power Dissipation (Note 2) PD 385 mW 328 3.0 °C/W mW/°C Thermal Resistance – Junction to Ambient Derate Above 25°C RJA Maximum Junction Temperature TJmax 150 °C Operating Junction and Storage Temperature Range TJ, Tstg –55 to +150 °C ESD Discharge MIL STD 883C – Method 3015–6 IEC61000–4–2, Air Discharge IEC61000–4–2, Contact Discharge Lead Solder Temperature (10 seconds duration) VPP kV 16 16 8 TL °C 260 1. Per Waveform Figure 1 2. Mounted on FR–5 Board = 1.0 X 0.75 X 0.062 in. 1/3 LESHAN RADIO COMPANY, LTD. LESD6V8T1G I IF VBR VRWM V IR VF IT V–I Curve ELECTRICAL CHARACTERISTICS Breakdown Voltage VBR @ 5 mA (Volts) Device LESD6V8T1G tr 90 Typical Capacitance @ 0 V Bias Max VF @ IF = 10 mA Max ZZ @ 5 mA Max ZZK @ 0.5 mA Min Nom Max (A) (pF) (V) () () 6.4 6.8 7.2 1.0 40 1.25 30 300 4 5 50 PEAK VALUE IRSM @ 8 s TYPICAL CAPACITANCE (pF) 1 MHz FREQUENCY % OF PEAK PULSE CURRENT 100 Leakage Current IRM @ VRWM = 5 V PULSE WIDTH (tP) IS DEFINED AS THAT POINT WHERE THE PEAK CURRENT DECAY = 8 s 80 70 60 HALF VALUE IRSM/2 @ 20 s 50 40 30 tP 20 10 0 40 35 30 25 20 15 10 0 20 40 60 80 0 3 t, TIME (s) BIAS VOLTAGE (VOLTS) Figure 2. Capacitance Ipp , PEAK PULSE CURRENT (AMPS) 0.1 0.01 0.001 0.0001 0.6 2 1 Figure 1. 8 × 20 s Pulse Waveform 1 IF, FORWARD CURRENT (A) 45 0.7 0.8 0.9 1.0 1.1 1.2 10 8 x 20 s per Figure 1 1 8 9 10 11 VF, FORWARD VOLTAGE (VOLTS) VC, CLAMPING VOLTAGE (VOLTS) Figure 3. Forward Voltage Figure 4. Clamping Voltage versus Peak Pulse Current 12 2/3 LESHAN RADIO COMPANY, LTD. LESD6V8T1G PACKAGE DIMENSIONS SC-89 A -X- 3 1 2 B -Y- NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETERS 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. 4. 463C-01 OBSOLETE, NEW STANDARD 463C-02. S K G 2 PL D 0.08 (0.003) M DIM A B C D G H J K L M N S 3 PL X Y N M C J -T- H MILLIMETERS MIN NOM MAX 1.50 1.60 1.70 0.75 0.85 0.95 0.60 0.70 0.80 0.23 0.28 0.33 0.50 BSC 0.53 REF 0.10 0.15 0.20 0.30 0.40 0.50 1.10 REF −−− −−− 10 _ −−− −−− 10 _ 1.50 1.60 1.70 MIN 0.059 0.030 0.024 0.009 0.004 0.012 −−− −−− 0.059 INCHES NOM 0.063 0.034 0.028 0.011 0.020 BSC 0.021 REF 0.006 0.016 0.043 REF −−− −−− 0.063 MAX 0.067 0.040 0.031 0.013 0.008 0.020 10 _ 10 _ 0.067 SEATING PLANE H L G RECOMMENDED PATTERN OF SOLDER PADS 3/3