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:
265°C 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 25°C ambient temperature unless otherwise specified.
RATING
SYMBOL
VALUE
UNITS
Peak power dissipation with a 8.0/20µs waveform
(NOTE 1, FIG 1)
Peak power pulse current with a
SMDA05C-8
8.0/20µs 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 T
A
=25°C per Fig. 2
(2) Mounted on copper pad areas of 0.045 x 0.030" (1.14 x 0.076mm) per leg
P
PPM
I
PPM
T
J
,T
STG
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 25°C
PART
NUMBER
DEVICE
MARKING
CODE
STAND-OFF
VOLTAGE
V
WM
Volts
5.0
12.0
15.0
24.0
MINIMUM
BREAKDOWN
VOLTAGE at I
T
=1.0mA
(NOTE 1)
V
(BR)
Volts
6.0*
13.4
16.7
26.7
MAXIMUM
CLAMPING
VOLTAGE
at I
PP
= 1A
V
C (NOTE 2)
Volts
9.8
19.0
24.0
43.0
MAXIMUM
CLAMPING
VOLTAGE
at I
PP =
5A
V
C (NOTE 2)
Volts
11.0
24.0
30.0
55.0
MAXIMUM
REVERSE
LEAKAGE
CURRENT at V
WM
I
D
µ
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
C
J
pF
350
150
120
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 MH
Z
and applied V
R
=0 volts
* V
(BR)
test current (I
T
) is 10 mA
*Application note: Due to the topology of the SMDA array the V
RWM
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
P
PPM
, PEAK PULSE POWER, kW
WAVEFORM - SEE FIG. 3
NON-REPETITIVE
100
75
50
25
0
1
0.1
0.01
100ns
1µs
10µs
100µs
1ms
10ms
0
25
50
75
100 125 150 175 200
td, PULSE DURATION, sec.
T
A
, AMBIENT TEMPERATURE, °C
FIG. 3 - PULSE WAVEFORM
150
I
PPM
, PEAK PULSE CURRENT, %
tr=8.0
µ
sec
PULSE DURATION
(td) IS DEFINED as
the POINT WHERE
the PEAK CURRENT
DECAYS to 50%
of I
PP
100
PEAK VALUE I
PP
HALF VALUE - I
PP
2
50
8/20µs WAVEFORM AS
DEFINED BY ANSI/EEE C62.35
td
0
0
10
20
30
40
50
60
70
80
t, TIME,
µs
嵌入式系统
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