NEW PRODUCT NEW PRODUCT NEW PRODUCT SM15T SERIES TRANSZORBTM SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR Breakdown Voltage - 6.8 to 220 Volts Peak Pulse Power - 1500 Watts FEATURES DO-214AB 0.126 (3.20) 0.114 (2.90) 0.245 (6.22) 0.220 (5.59) 0.280 (7.11) 0.260 (6.60) 0.012 (0.305) 0.006 (0.152) 0.103 (2.62) 0.079 (2.06) For surface mounted applications in order to optimize board space Low profile package Built-in strain relief Glass passivated junction Low inductance Excellent clamping capability Repetition Rate (duty cycle): 0.05% Fast reponse time: typically less than 1ps from 0 volts to VBR min. Typical ID less than 1A above 10V High temperature soldering: 250C/10 seconds at terminals Plastic package has Underwriters Laboratory Flammability Classification 94V-0 MECHANICAL DATA 0.060 (1.52) 0.008 (0.203) MAX. 0.030 (0.76) 0.320 (8.13) 0.305 (7.75) Dimensions in inches and (millimeters) Case: JEDEC DO-214AB (SMC) molded plastic over passivated junction Terminals: Solder plated solderable per MIL-STD-750, Method 2026 Polarity: For uni-directional types: Color band denotes positive end (cathode) Standard Packaging: 12mm tape (EIA STD RS-481) Weight: 0.003 ounces, 0.093 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25C ambient temperature unless otherwise specified SYMBOLS VALUE UNIT Peak Pulse Power Dissipation on 10/1000s waveform (NOTES 1, 2, Fig. 1) PPPM Minimum 1500 Watts Peak Pulse Current on 10/1000s waveform (NOTE 1, Fig. 3) IPPM See Table 1 Amps PM(AV) 6.5 Watts IFSM 200 Amps Max. Junction Temperature TJ 150 C Storage Temperature Range TSTG -65 to +175 C Thermal Resistance Junction to Ambient Air (NOTE 2) RJA 75 C/W Thermal Resistance Junction to Leads RJL 15 C/W Power Dissipation on Infinite Heatsink, TA=50C Peak Forward Surge Current, 10ms Single Half Sine-wave, Undirectional Only NOTES: (1) Non-repetitive current pulse, per Fig. 3 and derated above TA=25C per Fig. 2 (2) Mounted on 5.0mm2 (.013mm thick) land areas. (3) Measured on 8.3ms single half sine-wave or equivalent squarewave, duty cycle 4 pulses per minute maximum. 1/21/99 ELECTRICAL CHARACTERISTICS RATINGS at (TA=25C unless otherwise noted) Type(1) Device Marking Code Uni Standoff Leakage Voltage Current(3) VRM IRM @ VRM Breakdown Voltage VBR @ IT(2) (Volts) Test Current IT Clamping Voltage Clamping Voltage VC @ IPP VC @ IPP 10/1000s 8/20s Bi (Volts) (A) Min Max (mA) (Volts) (Amps) (Volts) (Amps) T Max 10-4/C SM15T6V8A GDE7 GDE7 5.80 1000 6.45 7.14 10 10.5 143 13.4 746 5.7 SM15T7V5A GDK7 BDK7 6.40 500 7.13 7.88 10 11.3 132 14.5 690 6.1 SM15T10A GDT7 BDT7 8.55 10.0 9.50 10.5 1.0 14.5 103 18.6 538 7.3 SM15T12A GDX7 BDX7 10.2 5.00 11.4 12.6 1.0 16.7 90.0 21.7 461 7.8 SM15T15A GEG7 GEG7 12.8 5.00 14.3 15.8 1.0 21.2 71.0 27.2 368 8.4 SM15T18A GEM7 BEM7 15.3 5.00 17.1 18.9 1.0 25.2 59.5 32.5 308 8.8 SM15T22A GET7 BET7 18.8 5.00 20.9 23.1 1.0 30.6 49.0 39.3 254 9.2 SM15T24A GEV7 GEV7 20.5 5.00 22.8 25.2 1.0 33.2 45.0 42.8 234 9.4 SM15T27A GEX7 BEX7 23.1 5.00 25.7 28.4 1.0 37.5 40.0 48.3 207 9.6 SM15T30A GFE7 BFE7 25.6 5.00 28.5 31.5 1.0 41.5 36.0 53.5 187 9.7 SM15T33A GFG7 GFG7 28.2 5.00 31.4 34.7 1.0 45.7 33.0 59.0 169 9.8 SM15T36A GFK7 BFK7 30.8 5.00 34.2 37.8 1.0 49.9 30.0 64.3 156 9.9 SM15T39A GFM7 BFM7 33.3 5.00 37.1 41.0 1.0 53.9 28.0 69.7 143 10.0 SM15T68A GGG7 GGG7 58.1 5.00 64.6 71.4 1.0 92.0 16.3 121 83 10.4 SM15T100A GGV7 GGV7 85.5 5.00 95.0 105 1.0 137 11.0 178 56 10.6 SM15T150A GHK7 GHK7 128 5.00 143 158 1.0 207 7.20 265 38 10.8 SM15T200A GHR7 GHR7 171 5.00 190 210 1.0 274 5.50 353 28 10.8 SM15T220A GHR8 GHR8 188 5.00 209 231 1.0 328 4.60 388 26 10.8 NOTES: (1) For bi-directional devices add "C" for 10% and "CA" for 5% tolerance of VBR (2) VBR measured after IT applied for 300s square wave pulse (3) For bipolar devices with VR=10 Volts or under, the IT limit is doubled APPLICATION NOTES A 1500W (SMC) device is normally selected when the threat of transients is from lightning induced transients, conducted via external leads or I/O lines. It is also used to protect against switching transients induced by large coils or industrial motors. Source impedance at component level in a system is usually high enough to limit the current within the peak pulse current (IPP) rating of this series. In an overstress condition, the failure mode is a short circuit. RECOMMENDED PAD SIZES The pad dimensions should be 0.010" (0.25mm) longer than the contact size, in the lead axis. This allows a solder fillet to form, see figure below. Contact factory for soldering methods 0.190 (4.83) 0.125 (3.17) 0.070 (1.78) RATINGS AND CHARACTERISTIC CURVES SM15T SERIES FIG. 1 - PEAK PULSE POWER RATING CURVE 0.31 X 0.31" (8.0 X 8.0mm) COPPER PAD AREAS td, PULSE WIDTH, sec. FIG. 2 - PULSE DERATING CURVE PEAK PULSE POWER (PPP) or CURRENT (IPP) DERATING IN PERCENTAGE, % PPPM, PEAK PULSE POWER, kW NON-REPETITIVE PULSE WAVEFORM SHOWN in FIG. 3 TA=25C TA, AMBIENT TEMPERATURE, C FIG. 4 - TYPICAL JUNCTION CAPACITANCE UNIDIRECTIONAL tr=10sec. PEAK VALUE IPPM TJ=25C PULSE WIDTH (td) is DEFINED as the POINT WHERE the PEAK CURRENT DECAYS to 50% of IPPM MEASURED at ZERO BIAS CJ, JUNCTION CAPACITANCE, pF IPPM PEAK PULSE CURRENT, % IRSM FIG. 3 - PULSE WAVEFORM HALF VALUE - IPP 2 10/1000sec. WAVEFORM as DEFINED by R.E.A. td t, TIME, ms FIG. 5 - TYPICAL JUNCTION CAPACITANCE BIDIRECTIONAL FIG. 6 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT IFSM, PEAK FORWARD SURGE CURRENT, AMPERES CJ, CAPACITANCE, pF MEASURED at STAND-OFF VOLTAGE, VWM VR, MEASURED at STAND-OFF VOLTAGE, VWM VWM, REVERSE STAND-OFF VOLTAGE, VOLTS TJ=25C f=1.0 MHZ Vsig=50mVp-p MEASURED at ZERO BIAS TJ=25C f=1.0 MHZ Vsig=50mVp-p 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) UNIDIRECTIONAL ONLY NUMBER OF CYCLES AT 60 HZ VWM, STAND-OFF VOLTAGE, VOLTS