1SMA4737-1SMA200Z
1.0Watts Surface Mount Silicon Zener Diode
ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted) VF=1.2V max, IF=200mA for all types.
Device
(Note 1)
Device
Marking
Code
Nominal
Zener Voltage
Vz @ Izt
Voltage
(Notes 2 & 3)
Test
Current
IZT
mA
Maximum Zener Impedance (Note 4) Leakage Current
ZZT @ IZT
ZZK @ IZK
IR @ VR
Ohms Ohms
mA uA Max Volts
Surge Current @
TA = 25OC
Ir - mA
(Note 5)
1SMA4737 737A
7.5
100 3
700 0.25 5.0 5.0
607
1SMA4738 738A
8.2
100 3.5 700 0.25 5.0 6.0
555
1SMA4739 739A
9.1
50 4 700 0.25 5.0 7.0
500
1SMA4740 740A
10
50 4 700 0.25 5.0 7.5
455
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: 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.
3. Zener Voltage (VZ) Measurement. Guarantees the zener voltage when messured at 90 seconds while maintaining
the lead temperature (TL) at 30OC± 1OC, from the diode body.
4. Zener Impedance (ZZ) Derivation. The zener impedance is derived from the 60 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.
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.
