- 123 -
1SMA4741 THRU 1SMA200Z
Surface Mount Silicon Zener Diode
Voltage Range
11 to 200 Volts
1.0 Watts Peak Power
Features
a
For surface mounted applications in order to optimize
board space
a
Low
profile
package
a
Built-in strain relief
a
Glass
passivated
junction
a
Low
inductance
a
Typical
I
R
less than 5.0
A above 11V
a
High temperature soldering guaranteed:
260
O
C / 10 seconds at terminals
a
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
Mechanical Data
a
Case: Molded plastic over passivated junction
a
Terminals: Solder plated solderable per
MIL-STD-750, Method 2025
a
Polarity:Color Band denotes positive end (cathode)
a
Standard packaging: 12mm tape (EIA-481)
a
Weight: 0.002 ounces, 0.064 gram
SMA/DO-214AC
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
+
ambient temperature unless otherwise specified.
Type Number
Symbol
Value
Units
Peak Power Dissipation at T
A
=50
O
C,
Derate above 50
O
C (Note 1)
P
D
1.0
6.67
Watts
mW/
O
C
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method) (Note 2)
I
FSM
10.0
Amps
Operating and Storage Temperature Range
T
J
, T
STG
-55 to + 150
O
C
Notes: 1. Mounted on 5.0mm
2
(0.013mm thick) land areas.
2. Measured on 8.3ms Single Half Sine-wave or Equivalent Square Wave,
Duty Cycle=4 Pulses Per Minute Maximum.
.062(1.58)
.056(1.43)
.012(.31)
.006(.15)
.008(.20)
.004(.10)
.056(1.41)
.035(0.90)
.187(4.75)
.167(4.25)
.210(5.33)
.195(4.95)
.111(2.83)
.102(2
.29
)
.103(2.
30
)
.078(1.
99)
- 124 -
ELECTRICAL CHARACTERISTICS
(TA=25
O
C unless otherwise noted) VF=1.2V max, IF=200mA for all types.
Nominal
Device
Zener Voltage
Test
Surge Current @
Device
Marking
Vz @ Izt
Current
TA = 25
O
C
(Note 1)
Code
Voltage
IZT
ZZT @ IZT
Ir - mA
(Notes 2 & 3)
mA
Ohms
Ohms
mA
uA Max
Volts
(Note 5)
1SMA4741
741A
11
23
8
700
0.25
5.0
8.4
414
1SMA4742
742A
12
21
9
700
0.25
5.0
9.1
380
1SMA4743
743A
13
19
10
700
0.25
5.0
9.9
344
1SMA4744
744A
15
17
14
700
0.25
5.0
11.4
304
1SMA4745
745A
16
15.5
16
700
0.25
5.0
12.2
285
1SMA4746
746A
18
14.0
20
750
0.25
5.0
13.7
250
1SMA4747
747A
20
12.5
22
750
0.25
5.0
15.2
225
1SMA4748
748A
22
11.5
23
750
0.25
5.0
16.7
205
1SMA4749
749A
24
10.5
25
750
0.25
5.0
18.2
190
1SMA4750
750A
27
9.5
35
750
0.25
5.0
20.6
170
1SMA4751
751A
30
8.5
40
1000
0.25
5.0
22.8
150
1SMA4752
752A
33
7.5
45
1000
0.25
5.0
25.1
135
1SMA4753
753A
36
7.0
50
1000
0.25
5.0
27.4
125
1SMA4754
754A
39
6.5
60
1000
0.25
5.0
29.7
115
1SMA4755
755A
43
6.0
70
1500
0.25
5.0
32.7
110
1SMA4756
756A
47
5.5
80
1500
0.25
5.0
35.8
95
1SMA4757
757A
51
5.0
95
1500
0.25
5.0
38.8
90
1SMA4758
758A
56
4.5
110
2000
0.25
5.0
42.6
80
1SMA4759
759A
62
4.0
125
2000
0.25
5.0
47.1
70
1SMA4760
760A
68
3.7
150
2000
0.25
5.0
51.7
65
1SMA4761
761A
75
3.3
175
2000
0.25
5.0
56.0
60
1SMA4762
762A
82
3.0
200
3000
0.25
5.0
62.2
55
1SMA4763
763A
91
2.8
250
3000
0.25
5.0
69.2
50
1SMA4764
764A
100
2.5
350
3000
0.25
5.0
76.0
45
1SMA110Z
110A
110
2.3
450
4000
0.25
5.0
83.6
-
1SMA120Z
120A
120
2.0
550
4500
0.25
5.0
91.2
-
1SMA130Z
130A
130
1.9
700
5000
0.25
5.0
98.8
-
1SMA150Z
150A
150
1.7
1000
6000
0.25
5.0
114.0
-
1SMA160Z
160A
160
1.6
1100
6500
0.25
5.0
121.6
-
1SMA180Z
180A
180
1.4
1200
7000
0.25
5.0
136.8
-
1SMA200Z
200A
200
1.2
1500
8000
0.25
5.0
152.0
-
Notes:
Maximum Zener Impedance (Note 4)
Leakage Current
ZZK @ IZK
IR @ VR
1. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of 5%.
2. Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive,
reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the
test current, IZT, per JEDEC registration; however, actual device capability is as described in Figure 10.
3. Zener Voltage (V
Z
) Measurement. Guarantees the zener voltage when messured at 90 seconds while maintaining
the lead temperature (T
L
) at 30
O
C 1
O
C, from the diode body.
4. Zener Impedance (ZZ) Derivation. The zener impedance is derived from the 1000 cycle ac voltage, which results when an ac
current having and rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK.
FIG.1- POWER TEMPERATURE DERATING CURVE
FIG.2- TYPICAL FORWARD CHARACTERISTICS
FIG.3- EFFECT OF ZENER CURRENT
ON ZENER IMPEDANCE
FIG.5- TYPICAL LEAKAGE CURRENT
FIG.4- EFFECT OF ZENER VOLTAGE
ON ZENER IMPEDANCE
P
MAXIMUM
POWER
DISSIP
A
TION
(W
A
TTS)
D
,
IF
,
FOR
W
ARD
CURRENT
(mA)
AMBIENT TEMPERATURE( C)
o
V FORWARD VOLTAGE (VOLTS)
F
,
I ,
Z
ZENER CURRENT (mA)
I ,
Z
ZENER CURRENT (mA)
V ,
Z
NOMINAL ZENER VOLTAGE (VOLTS)
Z
,
DYNAMIC
IMPEDANCE
(OHMS)
Z
IR,
LEAKAGE
CURRENT
(
A)
Z
,
DYNAMIC
IMPEDANCE
(OHMS)
Z
0
20
40
60
80
100 120
140
160
180 200
MINIMUM
MAXIMUM
70 C
o
150 C
o
25 C
o
0 C
o
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.0
2.0
5.0
10
20
50
100
200
500
1000
T = 25 C
I (rms)= 0.1 I (dc)
f = 1KHz
J
Z
Z
o
47V
27V
0.8V
0.1
0.25
0.50
0.75
1.0
1.25
0.2
0.5
1.0
2.0
5.0
10
20
50
100
1.0
2.0
5.0
10
20
50
100
200
500
1000
1.0
T = 25 C
I (rms)= 0.1 I (dc)
f = 1KHz
J
Z
Z
o
I = 1.0mA
Z
5.0mA
20mA
2.0
3.0
5.0 7.0 10
20
30
50 70 100
1.0
2.0
5.0
7.0
10
20
50
70
100
200
500
700
1000
TYPICAL LEAKAGE CURRENT
AT 80% OF NOMINAL
BREAKDOWN VOLTAGE
+125 C
o
+25 C
o
3.0
4.0 5.0 6.0 7.0 8.0 9.0
10 11
12
13
14 15
0.001
0.002
0.005
0.007
0.01
0.02
0.05
0.07
0.1
0.2
0.5
0.7
1.0
2.0
5.0
7.0
10
20
50
70
100
200
500
700
1000
2000
5000
7000
10000
RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA200Z)
- 125 -
FIG.6- TYPICAL CAPACITANCE versus Vz
FIG.7- TEMPERATURE COEFFICIENTS
FIG.
8
- TEMPERATURE COEFFICIENTS
FIG.
9
- EFFECT OF ZENER CURRENT
V , FORWARD VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
C,
CAP
ACIT
ANCE
(pF)
OV
,
TEMPERA
YURE
COEFFICIENT
(mV/
C)
Z
o
OV
,
TEMPERA
YURE
COEFFICIENT
(mV/
C)
Z
o
OV
,
TEMPERA
YURE
COEFFICIENT
(mV/
C)
Z
o
0V BIAS
1.0V BIAS
50% OF BREAKDOWN BIAS
1.0
10
100
4
8
10
100
200
300
400
b-RANGE FOR UNITS 11 TO 100 VOLTS
V @ I
Z
ZT
RANGE
10
20
30
50
70
100
1.0
2.0
3.0
5.0
7.0
10
20
30
50
70
100
a-RANGE FOR UNITS TO 12 VOLTS
V @ I
Z
ZT
RANGE
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10
11
12
-2.0
-4.0
0
+2.0
+4.0
+6.0
+8.0
+10
+12
V @ I
T 25 C
Z
ZT
A
o
20mA
0.01mA
1.0mA
NOTE: BELOW 3 VOLTS AND ABOVE a VOLTS
CHANGES IN ZENER CURRENT OO NOT
AFFECT TEMPERATURE COEFFICIENTS
3.0
4.0
5.0
6.0
7.0
8.0
-4.0
-2.0
0
+2.0
+4.0
+6.0
RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA200Z)
- 126 -
RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA200Z)
FIG.
10
- MAXIMUM SURGE POWER
Ppk,
PEAK
SURGE
POWER
IW
A
TTSO
PW, PULSE WIDTH (ms)
RECTANGULAR
WAVEFORM
TJ = 25 C PRIOR TO
INITIAL PULSE
o
11V-91V NON-REPETITIVE
0.8V-10V NON-REPETITIVE
5% DUTY CYCLE
10% DUTY CYCLE
20% DUTY CYCLE
1.0
0.01
0.02
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
500
1000
2.0
3.0
5.0
7.0
10
20
30
50
70
100
- 127 -
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