LITE-ON
SEMICONDUCTOR
SMAJ SERIES
STAND-OFF VOLTAGE -
5.0
to
170
Volts
POWER DISSIPATION -
400
WATTS
SURFACE MOUNT
UNIDIRECTIONAL AND BIDIRECTIONAL
TRANSIENT VOLTAGE SUPPRESSORS
FEATURES
Rating to 200V VBR
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 1.0ps for
Uni-direction,less than 5.0ns for Bi-direction,form 0
Volts to BV min
SMA
SMA
A
B
C
DIM.
A
B
C
D
E
F
F
D
G
H
MIN.
4.06
2.29
1.27
0.15
4.83
0.05
2.01
0.76
MAX.
4.57
2.92
1.63
0.31
5.59
0.20
2.62
1.52
G
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
H
E
All Dimensions in millimeter
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%
CHARACTERISTICS
PEAK POWER DISSIPATION AT T
A
= 25 C,
T
P
= 1ms (Note 1,2)
Peak Forward Surge Current 8.3ms
single half sine-wave super imposed
on rated load (Note 3)
(JEDEC METHOD)
SYMBOLS
VALUE
UNIT
P
PK
Minimum 400
WATTS
I
FSM
40
AMPS.
Steady State Power Dissipation at T
L
=75 C
P
M(AV)
1.0
WATTS
Maximum Instantaneous forward voltage
at 35A for unidirectional devices only (Note 3)
V
F
3.5
Volts
Operating Temperature Range
T
J
-55 to +150
C
Storage Temperature Range
T
STG
-55 to +175
C
NOTES : 1. Non-repetitive current pulse, per fig. 3 and derated above T
A
= 25
℃
per fig.1.
REV. 2, 01-Dec-2000, KSIA02
2. Thermal Resistance junction to Lead
3. 8.3ms single half-sine wave duty cycle= 4 pulses maximum per minute (unidirectional units only).
RATING AND CHARACTERISTIC CURVES
SMAJ SERIES
PEAK PULSE DERATING IN % OF PEAK
POWER OR CURRENT
100
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG.1 - PULSE DERATING CURVE
FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT
60
50
40
30
20
10
0
1
2
5
10
Pulse Width 8.3ms
Single Half-Sine-Wave
(JEDEC METHOD)
75
50
25
10 X 1000 WAVEFORM AS
DEFINED BY R.E.A.
0
0
25
50
75
100
125
150
175
200
20
50
100
AMBIENT TEMPERATURE, C
NUMBER OF CYCLES AT 60Hz
FIG.3 - PULSE WAVEFORM
T
R
=10us
10000
FIG.4 - TYPICAL JUNCTION CAPACITANCE
I
P,
PEAK PULSE CURRENT , (% )
100
Peak value (I
RSM)
I
Half value=
RSM
2
CAPACITANCE , (pF)
Uni-directional
Pulse width (T
P
) is defined
as that point where the
peak current decays to
50% of I
RSM
50
1000
T
J
= 25 C
Bi-directional
TP
10 x 1000 waveform as
defined by R.E.A.
100
T
J
=25 C
0
0
1.0
2.0
3.0
4.0
10
1
10
100
1000
T , TIME ( ms )
STAND-OFF VOLTAGE, VOLTS
100
T
A
=25 C
PM
(AV),
STEADY STATE POWER DISSIPATION (W)
FIG.5 - PULSE RATING CURVE
FIG.6 - STEADY STATE POWER DERATING CURVE
1.0
P
P
, PEAK POWER ( K
W
)
0.8
10
NON-REPETITIVE
PULSE WAVEFORM
SHOWN IN FIG 3.
0.6
0.4
1.0
5.0mm LEAD AREAS
0.2
60Hz RESISTIVE OR
INDUCTIVE LOAD
0.1
0.1us
1.0us
10us
100us
1.0ms
10ms
0.0
0
25
50
75
100
125
TL, LEAD TEMPERATURE
150
175
200
T
P
, PULSE WIDTH
REV. 2, 01-Dec-2000, KSIA02
Device
Uni-
directional
Device
Bi-
directional
Device
Marking code
Working
PeakReverse
Voltage
V
RWM
(Volts)
36
36
40
40
43
43
45
45
48
48
51
51
54
54
58
58
60
60
64
64
70
70
75
75
78
78
85
85
90
90
100
100
110
110
120
120
130
130
150
150
160
160
170
170
(UNI)
SMAJ36
SMAJ36A
SMAJ40
SMAJ40A
SMAJ43
SMAJ43A
SMAJ45
SMAJ45A
SMAJ48
SMAJ48A
SMAJ51
SMAJ51A
SMAJ54
SMAJ54A
SMAJ58
SMAJ58A
SMAJ60
SMAJ60A
SMAJ64
SMAJ64A
SMAJ70
SMAJ70A
SMAJ75
SMAJ75A
SMAJ78
SMAJ78A
SMAJ85
SMAJ85A
SMAJ90
SMAJ90A
SMAJ100
SMAJ100A
SMAJ110
SMAJ110A
SMAJ120
SMAJ120A
SMAJ130
SMAJ130A
SMAJ150
SMAJ150A
SMAJ160
SMAJ160A
SMAJ170
SMAJ170A
NOTE :
SMAJ36C
SMAJ36CA
SMAJ40C
SMAJ40CA
SMAJ43C
SMAJ43CA
SMAJ45C
SMAJ45CA
SMAJ48C
SMAJ48CA
SMAJ51C
SMAJ51CA
SMAJ54C
SMAJ54CA
SMAJ58C
SMAJ58CA
SMAJ60C
SMAJ60CA
SMAJ64C
SMAJ64CA
SMAJ70C
SMAJ70CA
SMAJ75C
SMAJ75CA
SMAJ78C
SMAJ78CA
SMAJ85C
SMAJ85CA
SMAJ90C
SMAJ90CA
SMAJ100C
SMAJ100CA
SMAJ110C
SMAJ110CA
SMAJ120C
SMAJ120CA
SMAJ130C
SMAJ130CA
SMAJ150C
SMAJ150CA
SMAJ160C
SMAJ160CA
SMAJ170C
SMAJ170CA
JN
JP
JQ
JR
JS
JT
JU
JV
JW
JX
JY
JZ
RD
RE
RF
RG
RH
RK
RL
RM
RN
RP
RQ
RR
RS
RT
RU
RV
RW
RX
RY
RZ
SD
SE
SF
SG
SH
SK
SL
SM
SN
SP
SQ
SR
(BI)
VN
VP
VQ
VR
VS
VT
VU
VV
VW
VX
VY
VZ
WD
WE
WF
WG
WH
WK
WL
WM
WN
WP
WQ
WR
WS
WT
WU
WV
WW
WX
WY
WZ
XD
XE
XF
XG
XH
XK
XL
XM
XN
XP
XQ
XR
Maximum
Reverse Voltage
Breakdowm voltage
at I
RSM
VBR Volts
(Clamping
Voltage)
Min. Max. @IT( mA) V
RSM
(VOLTS)
40.0
40.0
44.4
44.4
47.8
47.8
50.0
50.0
53.3
53.3
56.7
56.7
60.0
60.0
64.4
64.4
66.7
66.7
71.1
71.1
77.8
77.8
83.3
83.3
86.7
86.7
94.4
94.4
100
100
111
111
122
122
133
133
144
144
167
167
178
178
189
189
48.9
44.2
54.3
49.1
58.4
52.8
61.1
55.3
65.1
58.9
69.3
62.7
73.3
66.3
78.7
71.2
81.5
73.7
86.4
78.6
95.1
86.0
102
92.1
106
95.8
115
104
122
111
136
123
149
135
163
147
176
159
204
185
218
197
231
209
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
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
64.3
58.1
71.4
64.5
76.7
69.4
80.3
72.7
85.5
77.4
91.1
82.4
96.3
87.1
103.0
93.6
107.0
96.8
114
103
125
113
134
121
139
126
151
137
160
146
179
162
196
177
214
193
231
209
268
243
287
259
304
275
Maximum
Reverse Surge
Current
I
RSM
(Amps)
6.2
6.9
5.6
6.2
5.2
5.7
5.0
5.5
4.7
5.2
4.4
4.9
4.2
4.6
3.9
4.3
3.7
4.1
3.5
3.9
3.2
3.5
3.0
3.3
2.9
2.2
2.6
2.9
2.5
2.7
2.2
2.5
2.0
2.3
1.9
2.0
1.7
1.9
1.5
1.6
1.4
1.5
1.3
1.4
Maximum
Reverse
Leakage at
V
RWM
IR (uA)
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
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
1) Suffix 'A ' denotes 5% tolerance device,no suffix denotes 10 % tolerance device.
2) Add suffix 'C 'or ' CA ' after part number to specify Bi-directional devices.
3) For Bi-Directional devices having VR of 10 volts and under, the IR limit is double .
4) For Uni-directional devices VF max=3.5v at if=35 A ,0.5 sine wave of 8.3 msec .pulse width.
详细参数
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