SMA SERIES
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
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 grams
SMA
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
2.01
2.62
0.76
1.52
B
A
C
H
E
F
G
D
T
J
Operating Temperature Range
-55 to +150
T
STG
Storage Temperature Range
-55 to +175
C
I
FSM
Peak Forward Surge Current 8.3ms
single half sine-wave super imposed
on rated load (Note 3)
40
AMPS.
UNIT
P
M(AV)
1.0
WATTS
Steady State Power Dissipation at TL =75 C
P
PK
WATTS
PEAK POWER DISSIPATION AT T
A
= 25 C,
T
P
= 1ms (Note 1,2)
SYMBOLS
VALUE
Minimum 400
C
CHARACTERISTICS
(JEDEC METHOD)
STAND-OFF VOLTAGE - 6.8 to 200 Volts
POWER DISSIPATION - 400 WATTS
NOTES : 1. Non-repetitive current pulse, per fig. 3 and derated above T
A
= 25 C per fig.1.
2. Thermal Resistance junction to Lead
3. 8.3ms single half-sine wave duty cycle= 4 pulses maximum per minute (unidirectional units only).
Maximum Instantaneous forward voltage
at 35A for unidirectional devices only (Note 3)
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%
SEMICONDUCTOR
LITE-ON
REV. 2, 01-Dec-2000, KSIA01
RATING AND CHARACTERISTIC CURVES
SMA SERIES
FIG.1 - PULSE DERATING CURVE
PE
AK
PU
L
S
E D
E
R
A
T
I
NG
I
N
%
O
F
PE
AK
P
O
W
E
R
O
R
C
U
R
R
E
N
T
25
75
100
125
150
0
50
50
100
0
175
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 F
O
RW
ARD S
U
R
G
E
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
1
5
10
50
100
2
20
0
10
Pulse Width 8.3ms
Single Half-Sine-Wave
(JEDEC METHOD)
20
30
40
50
60
PM
(A
V
)
,
S
T
EADY
STA
T
E PO
W
E
R DI
SSI
PA
TI
O
N
(
W
)
FIG.6 - STEADY STATE POWER DERATING CURVE
TL, LEAD TEMPERATURE
25
75
100
125
150
0.0
50
0
175
200
0.2
0.4
0.6
0.8
1.0
60Hz RESISTIVE OR
INDUCTIVE LOAD
FIG.3 - PULSE WAVEFORM
AMBIENT TEMPERATURE, C
FIG.4 - TYPICAL JUNCTION CAPACITANCE
CAPACI
T
ANCE , (p
F
)
STAND-OFF VOLTAGE, VOLTS
10
1
100
10000
1000
100
10
1000
Uni-directional
Bi-directional
T
J
= 25 C
FIG.5 - PULSE RATING CURVE
P
P
,
PEAK
PO
W
E
R
(
K
W
)
T
P
, PULSE WIDTH
0.1
1.0
10
0.1us
1.0us
10us
100us
1.0ms
10ms
100
T
A
=150 C
5.0mm LEAD AREAS
NON-REPETITIVE
PULSE WAVEFORM
SHOWN IN FIG 3.
0
0
I
P,
PE
AK
P
U
L
S
E
CU
RR
E
N
T
,
(
%
)
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=
REV. 2, 01-Dec-2000, KSIA01
Breakdowm voltage
VBR Volts
Working
PeakReverse
Voltage
Maximum
Reverse
Leakage at
V
RWM
Maximum
Reverse Surge
Current
Maximum
Reverse Voltage
at I
RSM
(Clamping
Voltage)
(UNI)
(BI)
Min. Max. @IT( mA)
V
RWM
(Volts)
IR (uA)
I
RSM
(Amps)
V
RSM
(Volts)
SMA47
SMA47C
CDK CDM
42.3
51.7
1.0
38.1
5.0
5.90
67.8
SMA47A
SMA47CA
CEK
CEM
44.7
49.4
1.0
40.2
5.0
6.17
64.8
SMA51
SMA45C
CFK
CFM
45.9
56.1
1.0
41.3
5.0
5.44
73.5
SMA51A
SMA45CA
CGK
CGM
48.5
53.6
1.0
43.6
5.0
5.71
70.1
SMA56
SMA56C
CHK CHM
50.4
61.6
1.0
45.4
5.0
4.97
80.5
SMA56A
SMA56CA
CKK
CKM
53.2
58.8
1.0
47.8
5.0
5.19
77.0
SMA62
SMA62C
CLK
CLM
55.8
68.2
1.0
50.2
5.0
4.49
89.0
SMA62A
SMA62CA
CMK CMM 58.9
65.1
1.0
53.0
5.0
4.71
85.0
SMA68
SMA68C
CNK CNM
61.2
74.8
1.0
55.1
5.0
4.08
98.0
SMA68A
SMA68CA
CPK
CPM
64.6
71.4
1.0
58.1
5.0
4.35
92.0
SMA75
SMA75C
CQK CQM
67.5
82.5
1.0
60.7
5.0
3.70
108
SMA75A
SMA75CA
CRK
CRM
71.3
78.8
1.0
64.1
5.0
3.88
103
SMA82
SMA82C
CSK
CSM
73.8
90.2
1.0
66.4
5.0
3.39
118
SMA82A
SMA82CA
CTK
CTM
77.8
86.0
1.0
70.1
5.0
3.54
113
SMA91
SMA91C
CUK CUM
81.9
100
1.0
73.7
5.0
3.05
131
SMA91A
SMA91CA
CVK CVM
86.5
95.5
1.0
77.8
5.0
3.20
125
SMA100
SMA100C
CWK CWM 90.0
110
1.0
81.0
5.0
2.78
144
SMA100A
SMA100CA
CXK CXM
95.0
105
1.0
85.5
5.0
2.92
137
SMA110
SMA110C
CYK CYM
99.0
121
1.0
89.2
5.0
2.53
158
SMA110A
SMA110CA
CZK
CZM
105
116
1.0
94.0
5.0
2.63
152
SMA120
SMA120C
RDK RDM
108
132
1.0
97.2
5.0
2.31
173
SMA120A
SMA120CA
REK
REM
114
126
1.0
102
5.0
2.42
165
SMA130
SMA130C
RFK
RFM
117
143
1.0
105
5.0
2.14
187
SMA130A
SMA130CA
RGK
RGM
124
137
1.0
111
5.0
2.23
179
SMA150
SMA150C
RHK RHM
135
165
1.0
121
5.0
1.86
215
SMA150A
SMA150CA
RKK
RKM
143
158
1.0
128
5.0
1.93
207
SMA160
SMA160C
RLK
RLM
144
176
1.0
130
5.0
1.74
230
SMA160A
SMA160CA
RMK RMM
152
168
1.0
136
5.0
1.83
219
SMA170
SMA170C
RNK RNM
153
187
1.0
138
5.0
1.64
244
SMA170A
SMA170CA
RPK
RPM
162
179
1.0
145
5.0
1.71
234
SMA180
SMA180C
RQK RQM
162
198
1.0
146
5.0
1.55
258
SMA180A
SMA180CA
RRK
RRM
171
189
1.0
154
5.0
1.63
246
SMA200
SMA200C
RSK
RSM
180
220
1.0
162
5.0
1.39
287
SMA200A
SMA200CA
RTK
RTM
190
210
1.0
171
5.0
1.46
274
NOTE :
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.
Device
Uni-
directional
Device
Bi-
directional
Device
Marking code
PDF 
ZIP