SMAJ SERIES
FEATURES
For surface mounted applications
Reliable low cost construction utilizing molded plastic
technique
Plastic material has UL flammability classification 94V-O
Typical IR less than 1uA above 10V
Fast response time: typically less than 1.0ns for
Uni-direction,less than 5.0ns for Bi-direction,form 0 Volts
to BV min
MECHANICAL DATA
Case : Molded plastic
Polarity : by cathode band denotes uni-directional device
none cathode band denotes bi-directional device
Weight : 0.002 ounces, 0.064 gram
T
J
Operating Temperature Range
-55 to +175
T
STG
Storage Temperature Range
-55 to +175
C
I
FSM
Peak Forward Surge Current 8.3ms
single half sine-wave @ T
J
= 25
(Note
2)
40
AMPS.
UNIT
P
M(AV)
1.0
WATTS
Steady State Power Dissipation at T
L
=120
P
PK
WATTS
PEAK POWER DISSIPATION AT T
A
= 25
,
T
P
= 1ms (Note 1)
SYMBOLS VALUE
400
C
CHARACTERISTICS
SURFACE MOUNT
UNIDIRECTIONAL AND BIDIRECTIONAL
TRANSIENT VOLTAGE SUPPRESSORS
STAND-OFF VOLTAGE -
4.0
to
200
Volts
POWER DISSIPATION -
400
WATTS
NOTES : 1. Non-repetitive current pulse, per fig. 3 and derated above T
A
= 25 per fig.1.
2. 8.3ms single half-sine wave duty cycle= 4 pulses maximum per minute (unidirectional units only).
Maximum Instantaneous forward voltage
at 25A for unidirectional devices only
V
F
3.5 Volts
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%
All Dimensions in millimeter
SMA
DIM. MIN. MAX.
A
C
D
E
F
G
H
B
4.06 4.57
2.92 2.29
1.27 1.63
0.31 0.15
4.83 5.59
0.05 0.20
1.96 2.40
0.76 1.52
SEMICONDUCTOR
LITE-ON
REV. 12, Nov-2010, KSIA02
B
A
C
H
E
F
G
D
SMA
RATING AND CHARACTERISTIC CURVES
SMAJ SERIES
FIG.1 - PULSE DERATING CURVE
PEAK PULSE DERATING IN % OF PEAK
POWER OR CURRENT
25 75 100 125 150
0
50
50
100
0175
75
25
200
10 X 1000 WAVEFORM AS
DEFINED BY R.E.A.
FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT
NUMBER OF CYCLES AT 60Hz
PEAK FORWARD SURGE
CURRENT,
AMPERES
1 5 10 50 1002 20
0
10
Pulse Width 8.3ms
Single Half-Sine-Wave
20
30
40
50
60
PM
(AV),
STEADY STATE POWER DISSIPATION (W)
FIG.6 - STEADY STATE POWER DERATING CURVE
TL, LEAD TEMPERATURE,
25 75 100 125 150
0.0
50
0175 200
0.2
0.4
0.6
0.8
1.0
60Hz RESISTIVE OR
INDUCTIVE LOAD
FIG.4 - TYPICAL JUNCTION CAPACITANCE
CAPACITANCE , (pF)
STAND-OFF VOLTAGE, VOLTS
10
1100
10000
1000
100
10
1000
Uni-directional
Bi-directional
T
J
= 25 C
AMBIENT TEMPERATURE,
FIG.5 - PULSE RATING CURVE
P
P
, PEAK POWER ( K
W
)
T
P
, PULSE WIDTH
0.1
1.0
10
0.1us 1.0us 10us 100us 1.0ms 10ms
100
T
A
=25 C
5.0mm LEAD AREAS
NON-REPETITIVE
PULSE WAVEFORM
SHOWN IN FIG 3.
FIG.3 - PULSE WAVEFORM
0
0
I
P,
PEAK PULSE CURRENT , (% )
T , TIME ( ms )
50
100
1.0 2.0 3.0 4.0
T
R
=10us
Peak value (I
RSM)
TP
10 x 1000 waveform as
defined by R.E.A.
Pulse width (T
P
) is defined
as that point where the
peak current decays to
50% of I
RSM
T
J
=25 C
I
RSM
2
Half value=
Measured at
F= 1MHz,
1.0Vrms signal
Bias=0Vdc
Working
PeakReverse
Voltage
Breakdowm voltage
VBR Volts
Maximum
Reverse
Voltage at I
RSM
(Clamping
Voltage)
Maximum
Reverse Surge
Current
Maximum
Reverse
Leakage at
V
RWM
(UNI) (BI) V
RWM
(Volts) Min. Max. @IT( mA) V
RSM
(VOLTS) I
RSM
(Amps) IR (uA)
SMAJ4.0 HB 4.0 5.40 6.50 10 8.6 46.5 1000
SMAJ5.0A SMAJ5.0CA HE TE 5.0 6.40 7.07 10 9.2 43.5 800 / 1600
SMAJ6.0A SMAJ6.0CA HG TG 6.0 6.67 7.37 10 10.3 38.8 800 / 1600
SMAJ6.5A SMAJ6.5CA HK TK 6.5 7.22 7.98 10 11.2 35.7 500 / 1000
SMAJ7.0A SMAJ7.0CA HM TM 7.0 7.78 8.60 10 12.0 33.3 200 / 400
SMAJ7.5A SMAJ7.5CA HP TP 7.5 8.33 9.21 1 12.9 31.0 100 / 200
SMAJ8.0A SMAJ8.0CA HR TR 8.0 8.89 9.83 1 13.6 29.4 50 / 100
SMAJ8.5A SMAJ8.5CA HT TT 8.5 9.44 10.43 1 14.4 27.7 10 / 20
SMAJ9.0A SMAJ9.0CA HV TV 9.0 10.0 11.1 1 15.4 26.0 5 / 10
SMAJ10A SMAJ10CA HX TX 10 11.1 12.3 1 17.0 23.5 5 / 10
SMAJ11A SMAJ11CA HZ TZ 11 12.2 13.5 1 18.2 22.0 5.0
SMAJ12A SMAJ12CA IE UE 12 13.3 14.7 1 19.9 20.1 5.0
SMAJ13A SMAJ13CA IG UG 13 14.4 15.9 1 21.5 18.6 5.0
SMAJ14A SMAJ14CA IK UK 14 15.6 17.2 1 23.2 17.2 5.0
SMAJ15A SMAJ15CA IM UM 15 16.7 18.5 1 24.4 16.4 5.0
SMAJ16A SMAJ16CA IP UP 16 17.8 19.7 1 26.0 15.3 5.0
SMAJ17A SMAJ17CA IR UR 17 18.9 20.9 1 27.6 14.5 5.0
SMAJ18A SMAJ18CA IT UT 18 20.0 22.1 1 29.2 13.7 5.0
SMAJ20A SMAJ20CA IV UV 20 22.2 24.5 1 32.4 12.3 5.0
SMAJ22A SMAJ22CA IX UX 22 24.4 27.0 1 35.5 11.2 5.0
SMAJ24A SMAJ24CA IZ UZ 24 26.7 29.5 1 38.9 10.3 5.0
SMAJ26A SMAJ26CA JE VE 26 28.9 31.9 1 42.1 9.5 5.0
SMAJ28A SMAJ28CA JG VG 28 31.1 34.4 1 45.4 8.8 5.0
SMAJ30A SMAJ30CA JK VK 30 33.3 36.8 1 48.4 8.3 5.0
SMAJ33A SMAJ33CA JM VM 33 36.7 40.6 1 53.3 7.5 5.0
SMAJ36A SMAJ36CA JP VP 36 40.0 44.2 1 58.1 6.9 5.0
SMAJ40A SMAJ40CA JR VR 40 44.4 49.1 1 64.5 6.2 5.0
SMAJ43A SMAJ43CA JT VT 43 47.8 52.8 1 69.4 5.7 5.0
SMAJ45A SMAJ45CA JV VV 45 50.0 55.3 1 72.7 5.5 5.0
SMAJ48A SMAJ48CA JX VX 48 53.3 58.9 1 77.4 5.2 5.0
SMAJ51A SMAJ51CA JZ VZ 51 56.7 62.7 1 82.4 4.9 5.0
SMAJ54A SMAJ54CA RE WE 54 60.0 66.3 1 87.1 4.6 5.0
SMAJ58A SMAJ58CA RG WG 58 64.4 71.2 1 93.6 4.3 5.0
SMAJ60A SMAJ60CA RK WK 60 66.7 73.7 1 96.8 4.1 5.0
SMAJ64A SMAJ64CA RM WM 64 71.1 78.6 1 103 3.9 5.0
SMAJ70A SMAJ70CA RP WP 70 77.8 86.0 1 113 3.5 5.0
SMAJ75A SMAJ75CA RR WR 75 83.3 92.1 1 121 3.3 5.0
SMAJ78A SMAJ78CA RT WT 78 86.7 95.8 1 126 3.2 5.0
SMAJ85A SMAJ85CA RV WV 85 94.4 104 1 137 2.9 5.0
SMAJ90A SMAJ90CA RX WX 90 100 111 1 146 2.7 5.0
SMAJ100A SMAJ100CA RZ WZ 100 111 123 1 162 2.5 5.0
SMAJ110A SMAJ110CA SE XE 110 122 135 1 177 2.3 5.0
SMAJ120A SMAJ120CA SG XG 120 133 147 1 193 2.0 5.0
SMAJ130A SMAJ130CA SK XK 130 144 159 1 209 1.9 5.0
SMAJ150A SMAJ150CA SM XM 150 167 185 1 243 1.6 5.0
SMAJ160A SMAJ160CA SP XP 160 178 197 1 259 1.5 5.0
SMAJ170A SMAJ170CA SR XR 170 189 209 1 275 1.4 5.0
SMAJ188A SMAJ188CA SS VS 188 209 231 1 328 1.2 5.0
SMAJ200A SMAJ200CA ST YT 200 224 248 1 324 1.2 1.0
NOTE :
Suffix 'A ' denotes 5% tolerance device.
1. Add suffix 'C 'or ' CA ' after part number to specify Bi-directional devices.
2. For Bi-Directional devices having VR of 10 volts and under, the IR limit is double .
For Uni-directional devices VF max=3.5v at if=25 A 300us square wave pulse.
Device
Marking
code
Device
Uni-
directional
Device
Bi-
directional
SEMICONDUCTOR
LITE-ON
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SMAJ SERIES
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