SMDA05C-4 THRU SMDA24C-4
SURFACE MOUNT DIODE ARRAY TRANSIENT VOLTAGE SUPPRESSOR
Stand-off Voltage - 5.0 to 24 Volts 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
♦300W peak pulse power reverse surge capability
♦Excellent clamping capability
♦Protection of up to four data lines
♦Fast response time: typically less than 5.0ns
from 0 Volts to V(BR)
♦High temperature soldering guaranteed:
265°C for 5 seconds at ter minals
MECHANICAL DATA
Case: JEDEC MS-012-AA molded plastic, over passivated
junctions
Terminal: Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity: Bidirectional as marked
Mounting Position: Any
Weight: 0.04 ounce, 1.00 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
RATING SYMBOL VALUE UNITS
Peak power dissipation with a 8.0/20µs waveform PPPM Minimum 300 Watts
Peak power pulse current with a SMDA05C-4 20.0
8.0/20µs wavefor m SMDA12C-4 IPPM 15.0 Amps
SMDA15C-4 12.0
SMDA24C-4 7.5
Operating junction and storage temperature range TJ, TSTG -50 to +125 °C
NOTES:
(1) Non-repetitive current pulse, per Fig.3 and derated above TA=25°C per Fig. 2
(2) Mounted on copper pad areas of 0.045 x 0.030" (1.14 x 0.076mm) per leg
BIDIRECTIONAL APPLICATIONS
All electrical characteristics apply in both direction
SO-8/MS-012-AA
5
14
0.189 (4.80)
0.197 (5.00)
0.150 (3.80)
0.157 (4.00)
0.228 (5.80)
0.244 (6.20)
0.013 (0.33)
0.020 (0.51)
0.053 (1.35)
0.069 (1.75)
0.004 (0.10)
0.009 (0.25)
0.016 (0.40)
0.050(1.27)
0
o
- 8
o
0.010(0.25)
0.019(0.50)
x 45o
0.007 (0.19)
0.009 (0.25)
8
0.050(1.27)
Dimensions in inches and (millimeters)
ELECTRICAL CHARACTERISTICS at 25°C
MINIMUM MAXIMUM MAXIMUM MAXIMUM MAXIMUM
DEVICE BREAKDOWN CLAMPING CLAMPING REVERSE JUNCTION
PART MARKING STANDOFF VOLTAGE at I T=1.0mA VOLTAGE VOLTAGE LEAKAGE CAPACITANCE
NUMBER CODE VOLTAGE (NOTE 1) at IPP = 1A at IPP = 5A CURRENT at VWM (NOTE 3)
BIDIRECTIONAL VWM V(BR) VC (NOTE 2) VC (NOTE 2) IDCJ
Volts Volts Volts Volts µApF
SMDA05C-4 REB 5.0 *6.0 9.8 11.0 100.0 350
SMDA12C-4 RED 12.0 13.4 19.0 24.0 1.0 150
SMDA15C-4 REF 15.0 16.7 24.0 30.0 1.0 120
SMDA24C-4 REH 24.0 26.7 43.0 55.0 1.0 100
NOTES:
(1) V(BR) measured at pulse width of 300µs sq. wave or equivalent
(2) Surge current waveform per Fig. 3 and derate per Fig. 2
(3) Junction capacitance measured at 1.0 MHZand applied VR=0 volts
*V(BR) test current is (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-4 is designed
to “see” a maximum voltage excursion of ± 6 volts between any two data lines.
CIRCUIT DIAGRAM* - top view SOLDER PAD GEOMETRY
RATING AND CHARACTERISTIC CURVES FOR SMDA05C-4 THRU SMDA24C-4
1
4
58
GND
GND N/CN/C
100ns 1
µ
s10
µ
s100
µ
s 1ms 10ms
0.01
0.1
1
10
0 25 50 75 100 125 150 175 200
0
25
50
75
100
0 1020304050607080
0
50
100
150
FIG. 1 - PEAK PULSE POWER RATING CURVE FIG. 2 - PULSE DERATING CURVE
FIG. 3 - PULSE WAVEFORM
t, TIME, µs
TA, AMBIENT TEMPERATURE, °C
td, PULSE DURATION, sec.
PULSE DURATION (td)
IS DEFINED AS THAT
POINT WHERE THE
PEAK CURRENT
DECAYS TO 50% OF IPP
WAVEFORM - SEE FIG.3
NON-REPETITIVE
8/20µs WAVEFORM AS
DEFINED BY
ANSI/EEE C62.35
HALF VALUE - IPP
2
PEAK VALUE IPP
tr=8.0µsec
IPPM, PEAK PULSE CURRENT, %
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT, %
PPPM, PEAK PULSE POWER, kW
Dimensions in inches and (millimeters)
td
*SMDA05C-4 is common anode configuration
0.05 (1.27)
0.04 (1.02)
0.165 (4.19)
0.155 (3.94)
0.050 typ.
(1.27)
0.245 (6.22)
MIN
0.035 (0.889)
0.025 (0.635)
