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MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA GENERAL DATA APPLICABLE TO ALL SERIES IN THIS GROUP
1SMC5.0AT3 SERIES
1500 WATT PEAK POWER
PLASTIC SURFACE MOUNT ZENER OVERVOLTAGE TRANSIENT SUPPRESSORS 6.8-91 VOLTS 1500 WATT PEAK POWER
Zener Transient Voltage Suppressors
The SMC series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SMC series is supplied in Motorola's exclusive, cost-effective, highly reliable Surmetic package and is ideally suited for use in communication systems, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.
* * * * * * * * *
Specification Features: Standard Zener Breakdown Voltage Range -- 6.8 to 91 V Stand-off Voltage Range -- 5 to 78 V Peak Power -- 1500 Watts @ 1 ms Maximum Clamp Voltage @ Peak Pulse Current Low Leakage < 5 A Above 10 V UL Recognition Maximum Temperature Coefficient Specified Available in Tape and Reel Response Time Typically < 1 ns
Mechanical Characteristics: CASE: Void-free, transfer-molded, thermosetting plastic FINISH: All external surfaces are corrosion resistant and leads are readily solderable POLARITY: Cathode indicated by molded polarity notch. When operated in zener mode, will be positive with respect to anode MOUNTING POSITION: Any LEADS: Modified L-Bend providing more contact area to bond pads MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES: 260C for 10 seconds WAFER FAB LOCATION: Phoenix, Arizona ASSEMBLY/TEST LOCATION: Seremban, Malaysia MAXIMUM RATINGS
Rating Peak Power Dissipation (1) @ TL 25C Forward Surge Current (2) @ TA = 25C Thermal Resistance from Junction to Lead (typical) Operating and Storage Temperature Range
NOTES: 1. Nonrepetitive current pulse per Figure 2 and derated above TA = 25C per Figure 3. NOTES: 2. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
CASE 403 PLASTIC
Symbol PPK IFSM RqJL TJ, Tstg
Value 1500 200 15 - 65 to +150
Unit Watts Amps C/W C
REV 1
Motorola TVS/Zener Device Data
1500 Watt Peak Power Data Sheet 5-1
GENERAL DATA -- 1500 WATT PEAK POWER
ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted).
Breakdown Voltage* Reverse Stand-Off Voltage VR Volts (1) 5.0 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10 11 12 13 14 15 16 17 18 20 22 24 26 28 30 33 36 40 43 45 48 51 54 58 60 64 70 75 78 VBR @ IT Volts Min 6.40 6.67 7.22 7.78 8.33 8.89 9.44 10.0 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20.0 22.2 24.4 26.7 28.9 31.1 33.3 36.7 40.0 44.4 47.8 50.0 53.3 56.7 60.0 64.4 66.7 71.1 77.8 83.3 86.7 mA 10 10 10 10 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Maximum Clamping Voltage VC @ Ipp Volts 9.2 10.3 11.2 12.0 12.9 13.6 14.4 15.4 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 77.4 82.4 87.1 93.6 96.8 103 113 121 126 Peak Pulse Current (See Figure 2) Ipp{ Amps 163.0 145.6 133.9 125.0 116.3 110.3 104.2 97.4 88.2 82.4 75.3 69.7 64.7 61.5 57.7 53.3 51.4 46.3 42.2 38.6 35.6 33.0 31.0 28.1 25.8 23.2 21.6 20.6 19.4 18.2 17.2 16.0 15.5 14.6 13.3 12.4 11.4 Maximum Reverse Re erse Leakage @ VR IR A 1000 1000 500 200 100 50 20 10 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Device{{ 1SMC5.0AT3 1SMC6.0AT3 1SMC6.5AT3 1SMC7.0AT3 1SMC7.5AT3 1SMC8.0AT3 1SMC8.5AT3 1SMC9.0AT3 1SMC10AT3 1SMC11AT3 1SMC12AT3 1SMC13AT3 1SMC14AT3 1SMC15AT3 1SMC16AT3 1SMC17AT3 1SMC18AT3 1SMC20AT3 1SMC22AT3 1SMC24AT3 1SMC26AT3 1SMC28AT3 1SMC30AT3 1SMC33AT3 1SMC36AT3 1SMC40AT3 1SMC43AT3 1SMC45AT3 1SMC48AT3 1SMC51AT3 1SMC54AT3 1SMC58AT3 1SMC60AT3 1SMC64AT3 1SMC70AT3 1SMC75AT3 1SMC78AT3
Device Marking GDE GDG GDK GDM GDP GDR GDT GDV GDX GDZ GEE GEG GEK GEM GEP GER GET GEV GEX GEZ GFE GFG GFK GFM GFP GFR GFT GFV GFX GFZ GGE GGG GGK GGM GGP GGR GGT
{{ Surge current waveform per Figure 2 and derate per Figure 3 of the General Data -- 1500 Watt at the beginning of this group. {{ T3 suffix designates tape and reel of 2500 units.
Note 1: A transient suppressor is normally selected according to the reverse "Stand Off Voltage" (VR) which should be equal to or greater than the DC or continuous peak operating voltage level. * * VBR measured at pulse test current IT at an ambient temperaure of 25C.
ABBREVIATIONS AND SYMBOLS VR Stand Off Voltage. Applied reverse voltage to assure a non-conductive condition (See Note 1). V(BR)min This is the minimum breakdown voltage the device will exhibit and is used to assure that conduction does not occur prior to this voltage level at 25C. VC Maximum Clamping Voltage. The maximum peak voltage appearing across the transient suppressor when
IPP PP IR
subjected to the peak pusle current in a one millisecond time interval. The peak pulse series resistance and thermal rise. Peak Pulse Current -- See Figure 2 Peak Pulse Power Reverse Leakage
1500 Watt Peak Power Data Sheet 5-2
Motorola TVS/Zener Device Data
GENERAL DATA -- 1500 WATT PEAK POWER
100 NONREPETITIVE PULSE WAVEFORM SHOWN IN FIGURE 2 100 10 VALUE (%) tr PEAK VALUE - IRSM PULSE WIDTH (tP) IS DEFINED AS THAT POINT WHERE THE PEAK CURRENT DECAYS TO 50% OF IRSM. tr 10 s
PP, PEAK POWER (kW)
50 tP 1 0.1 s 1 s 10 s 100 s 0
I HALF VALUE - RSM 2
1 ms
10 ms
0
1
2 t, TIME (ms)
3
4
tP, PULSE WIDTH
Figure 1. Pulse Rating Curve
Figure 2. Pulse Waveform
160 PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT @ T = 25 C A 140 120 100 80 60 40 20 0 0 25 50 75 100 125 150 1000 500 I Z , ZENER CURRENT (AMPS) 200 100 50 20 10 5 2 1 0.3 120 V 180 V TL = 25C tP = 10 s VZ (NOM) = 6.8 TO 13 V 20 V 43 V 24 V 75 V
0.5 0.7 1
2
3
5
7
10
20
30
TA, AMBIENT TEMPERATURE (C)
VZ, INSTANTANEOUS INCREASE IN VZ ABOVE VZ (NOM) (VOLTS)
Figure 3. Pulse Derating Curve
Figure 4. Dynamic Impedance
UL RECOGNITION
The entire series has Underwriters Laboratory Recognition for the classification of protectors (QVGV2) under the UL standard for safety 497B and File #116110. Many competitors only have one or two devices recognized or have recognition in a non-protective category. Some competitors have no recognition at all. With the UL497B recognition, our parts successfully passed several tests including Strike Voltage Breakdown test, Endurance Conditioning, Temperature test, Dielectric Voltage-Withstand test, Discharge test and several more. Whereas, some competitors have only passed a flammability test for the package material, we have been recognized for much more to be included in their Protector category.
Motorola TVS/Zener Device Data
1500 Watt Peak Power Data Sheet 5-3
GENERAL DATA -- 1500 WATT PEAK POWER
APPLICATION NOTES
RESPONSE TIME In most applications, the transient suppressor device is placed in parallel with the equipment or component to be protected. In this situation, there is a time delay associated with the capacitance of the device and an overshoot condition associated with the inductance of the device and the inductance of the connection method. The capacitive effect is of minor importance in the parallel protection scheme because it only produces a time delay in the transition from the operating voltage to the clamp voltage as shown in Figure 5. The inductive effects in the device are due to actual turn-on time (time required for the device to go from zero current to full current) and lead inductance. This inductive effect produces an overshoot in the voltage across the equipment or component being protected as shown in Figure 6. Minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is to clamp voltage spikes. The SMC series have a very good response time, typically < 1 ns and negligible inductance. However, external inductive effects could produce unacceptable overshoot. Proper circuit layout, minimum lead lengths and placing the suppressor device as close as possible to the equipment or components to be protected will minimize this overshoot. Some input impedance represented by Zin is essential to prevent overstress of the protection device. This impedance should be as high as possible, without restricting the circuit operation. DUTY CYCLE DERATING The data of Figure 1 applies for non-repetitive conditions and at a lead temperature of 25C. If the duty cycle increases, the peak power must be reduced as indicated by the curves of Figure 7. Average power must be derated as the lead or ambient temperature rises above 25C. The average power derating curve normally given on data sheets may be normalized and used for this purpose. At first glance the derating curves of Figure 7 appear to be in error as the 10 ms pulse has a higher derating factor than the 10 s pulse. However, when the derating factor for a given pulse of Figure 7 is multiplied by the peak power value of Figure 1 for the same pulse, the results follow the expected trend.
TYPICAL PROTECTION CIRCUIT
Zin
Vin
LOAD
VL
Vin (TRANSIENT) V VL V OVERSHOOT DUE TO INDUCTIVE EFFECTS
Vin (TRANSIENT) VL
Vin td tD = TIME DELAY DUE TO CAPACITIVE EFFECT t
t
Figure 5.
1 0.7 0.5 0.3 DERATING FACTOR 0.2 0.1 0.07 0.05 0.03 0.02 10 s 0.01 0.1 0.2 0.5 1 2 5 10 D, DUTY CYCLE (%) 20 50 PULSE WIDTH 10 ms
Figure 6.
1 ms 100 s
100
Figure 7. Typical Derating Factor for Duty Cycle Motorola TVS/Zener Device Data
1500 Watt Peak Power Data Sheet 5-4
GENERAL DATA -- 1500 WATT PEAK POWER
Transient Voltage Suppressors -- Surface Mounted
1500 Watt Peak Power
0.171 4.343 S A 0.150 3.810 D B 0.110 2.794
inches mm
SMC Footprint
C K P J H
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. INCHES MILLIMETERS MIN MAX MIN MAX 6.60 7.11 0.260 0.280 5.59 6.10 0.220 0.240 1.90 2.41 0.075 0.095 2.92 3.07 0.115 0.121 0.0020 0.0060 0.051 0.152 0.15 0.30 0.006 0.012 0.76 1.27 0.030 0.050 0.020 REF 0.51 REF 7.75 8.13 0.305 0.320
CASE 403 (SMC)
(Refer to Section 10 for Surface Mount, Thermal Data and Footprint Information.)
DIM A B C D H J K P S
MULTIPLE PACKAGE QUANTITY (MPQ) REQUIREMENTS
Package Option Tape and Reel Type No. Suffix T3 (13 inch reel) MPQ (Units) 2.5K
(Refer to Section 10 for more information on Packaging Specifications.)
Motorola TVS/Zener Device Data
1500 Watt Peak Power Data Sheet 5-5

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