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SMDA05C-8 THRU SMDA24C-8
SURFACE MOUNT DIODE ARRAY TRANSIENT VOLTAGE SUPPRESSOR
Stand-off Voltage - 5.0 to 24 Volts
SO-14/MS-012-AB
Peak Pulse Power - 300 Watts
FEATURES
Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Offers ESD protection in accordance with IEC1000-4-2 (IEC801-2) Monolithic TVS junctions
0.337(8.55) 0.344(8.75)
14
8 0.150(3.80) 0.157(4.00) 0.228(5.80) 0.244(6.20)
300W peak pulse power surge capability Excellent clamping capability Protection of up to eight data lines Fast response time: typically less than 5.0ns from 0 volts to V(BR)
0.053(1.35) 0.069(1.75) 0.004(0.10) 0.009(0.25)
1
7
0.050(1.27)
0.013(.33) 0.020(.51)
High temperature soldering guaranteed: 265C for 5 seconds at terminals
0.010(0.25) x 45 0.019(0.50)
0.007 (0.19) 0.009 (0.25)
MECHANICAL DATA
Case: JEDEC MS-012-AB molded plastic, over passivated junctions Terminal: Plated, solderable per MIL-STD-750, Method 2026 Polarity: Bidirectional as marked Mounting Position: Any
0 - 8 0.016 (0.40) 0.050(1.27)
Dimensions in inches and (millimeters)
Weight: 0.07 ounce, 1.75 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 SMDA05C-8 8.0/20s waveform (NOTE 1) SMDA12C-8 SMDA15C-8 SMDA24C-8 Operating junction and storage temperature range
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 0.076mm) per leg
PPPM IPPM
TJ,TSTG
Minimum 300 20.0 15.0 12.0 7.5 -50 to +125
Watts Amps
C
BIDIRECTIONAL APPLICATIONS
All electrical characteristics apply in both directions
ELECTRICAL CHARACTERISTICS at 25C
PART NUMBER DEVICE MARKING CODE STAND-OFF VOLTAGE VWM Volts 5.0 12.0 15.0 24.0 MINIMUM BREAKDOWN VOLTAGE at IT=1.0mA (NOTE 1) V(BR) Volts 6.0* 13.4 16.7 26.7 MAXIMUM CLAMPING VOLTAGE at IPP = 1A VC (NOTE 2) Volts 9.8 19.0 24.0 43.0 MAXIMUM CLAMPING VOLTAGE at IPP = 5A VC (NOTE 2) Volts 11.0 24.0 30.0 55.0 MAXIMUM REVERSE LEAKAGE CURRENT at VWM ID A 100.0 1.0 1.0 1.0 MAXIMUM JUNCTION CAPACITANCE
(NOTE 3)
BIDIRECTIONAL SMDA05C-8 SMDA12C-8 SMDA15C-8 SMDA24C-8 SEB SED SEF SEH
CJ pF 350 150 120 100
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 at 1.0 MHZ and applied VR=0 volts * V(BR) test current (IT) is 10 mA
*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 SMDA12C-8 is designed to "see" a maximum voltage excursion of 6 volts between any two data lines.
CIRCUIT DIAGRAM* - top view
GND 14 N/C GND 8
SOLDER PAD GEOMETRY
0.045 0.005 (1.14 .127) .245 (6.22) min 0.160 0.005 (4.06 .127)
0.030 0.005 (.762 .127)
0.050 typ. (.127)
1 GND
N/C
*SMDA05C-8 is common anode configuration
7 GND
Dimensions in inches and (millimeters)
RATING AND CHARACTERISTIC CURVES FOR SMDA05C-8 THRU SMDA24C-8
FIG. 1 - PEAK PULSE POWER RATING CURVE
PEAK PULSE IN DERATING IN OF OF PEAK PULSE OR CURENT, %
FIG. 2 - PULSE DERATING CURVE
10
PPPM, PEAK PULSE POWER, kW WAVEFORM - SEE FIG. 3 NON-REPETITIVE
100 75 50 25 0
1
0.1
0.01 100ns
1s
10s
100s
1ms
10ms
0
25
50
75
100 125 150 175 200
td, PULSE DURATION, sec.
TA, AMBIENT TEMPERATURE, C
FIG. 3 - PULSE WAVEFORM
150
IPPM, PEAK PULSE CURRENT, % tr=8.0 sec PULSE DURATION (td) IS DEFINED as the POINT WHERE the PEAK CURRENT DECAYS to 50% of IPP
100
PEAK VALUE IPP
HALF VALUE - IPP 2
50
8/20s WAVEFORM AS DEFINED BY ANSI/EEE C62.35 td
0
0
10
20
30
40
50
60
70
80
t, TIME, s

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