SMDA05-18 SURFACE MOUNT ESD PROTECTION ARRAY Standoff Voltage - 5.0 Volts Peak Pulse Power - 175 Watts SO-20/MS-013-AC FEATURES 0.496(12.60) 0.511(13.00) 20 11 0.291(7.40) 0.299(7.60) 10 1 0.050 BSC 1.27 BSC MECHANICAL DATA 0.010(0.25) x 45 0.029(0.75) 0 - 8 0.013(0.33) 0.020(0.51) Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Offers ESD protection in accordance with IEC1000-4-2 (IEC801-2) Monolithic TVS junctions in a wide body package 175W peak pulses power surge capability Excellent clamping capability Protection of up to eighteen data lines Ideal for Centronix Port protection Fast response time: typically less than 1.0ns from 0 Volts to V(BR) High temperature soldering guaranteed: 265C for 5 seconds at terminals 0.009(0.23) 0.012(0.32) 0.394(10.00) 0.419(10.65) 0.016(0.40) 0.050(1.27) Dimensions in inches and (millimeters) Case: JEDEC MS-013-AC molded plastic over passivated junctions Terminal: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: Unidirectional, as marked Mounting Position: Any Weight: 0.10 ounce, 2.50 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25C ambient temperature unless otherwise specified. RATING SYMBOL VALUE UNITS Peak power dissipation with a 8.0/20s waveform (NOTE 1, FIG 1) Peak power pulse current with a 8.0/20s waveform (NOTE 1) Operating junction and storage temperature range PPPM IPPM TJ,TSTG Minimum 175 13.3 -50 to +125 Watts Amps C NOTES: (1) Non-repetitive current pulse, per Fig.3 and derated above TA=25C per Fig. 2 (2) Mounted on copper pad areas of 0.045 x 0.030" (1.14 x 0.076 mm) per leg UNIDIRECTIONAL APPLICATIONS ELECTRICAL CHARACTERISTICS at 25C DEVICE MARKING CODE PART NUMBER STAND-OFF VOLTAGE UNIDIRECTIONAL SMDA05-18 MINIMUM BREAKDOWN VOLTAGE at IT=10mA (NOTE 1) MAXIMUM CLAMPING VOLTAGE at IPP = 1A MAXIMUM CLAMPING VOLTAGE at IPP = 5A VWM Volts V(BR) Volts VC (NOTE 2) Volts VC (NOTE 2) Volts VF Volts ID A CJ pF 5.0 6.0 9.8 11.0 1.25 20.0 120 VEB NOTES: (1) V(BR) measured at pulse width of 300s sq. wave or equivalent (2) Surge current waveform per Fig. 3 and derate per Fig. 2 (3) Junction capacitance measured between I/O pin and ground at 1.0 MHZ and applied VR=0 volts *Application note: Due to the topology of the SMDA array, the VRWM and V(BR) specifications also apply to the differential voltage between any two data line pins. Hence the SMDA05-18 is designed to "see" a maximum voltage excursion of 2.5 volts between any two data lines. SOLDER PAD GEOMETRY CIRCUIT DIAGRAM 20 MAXIMUM MAXIMUM MAXIMUM FORWARD REVERSE JUNCTION VOLTAGE DROP LEAKAGE CAPACITANCE at IF=200 mA CURRENT at VWM (NOTE 3) 0.045 0.005 (1.14 0.127) 11 GND 0.420 (10.66) MIN 1 10 GND 0.307 0.005 (7.8 .82) 0.050 typ. (0.127) 0.030 0.005 (0.762 0.127) RATINGS AND CHARACTERISTIC CURVES FOR SMDA05-18 FIG. 2 - PULSE DERATING CURVE FIG. 1 - PEAK PULSE POWER RATING CURVE 100 PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT, % PPPM, PEAK PULSE POWER, kW 10 WAVEFORM - SEE FIG. 3 NON-REPETITIVE 1 0.1 0.01 100 ns 1s 10s 100s 1 ms 10 ms 75 50 25 0 0 100 125 150 175 200 105 tr=8.0sec. PEAK VALUE IPP PULSE DURATION (td) is DEFINED AS the POINT WHERE the PEAK CURRENT DECAYS to 50% of IPP 84 LET THROUGH VOLTAGE, VOLTS IPPM, PEAK PULSE CURRENT, % 150 HALF VALUE - IPP 2 50 8/20s WAVEFORM as DEFINED by ANSI/IEEE C62.35 td 0 75 FIG. 4 - TYPICAL RESPONSE TO 8KV POSITIVE GOING ESD PULSE FIG. 3 - PULSE WAVEFORM 0 50 TA, AMBIENT TEMPERATURE, C td, PULSE DURATION, sec. 100 25 10 20 30 40 t, TIME, s 50 60 70 80 63 42 21 0V -21 -42 -63 -84 -105 0 10 20 30 40 t, TIME, ns 50 60 70 80