1SMA4737 Datasheet, PDF (2/4 Pages) Taiwan Semiconductor Company, Ltd – 1.25 Watts Surface Mount Silicon Zener Diode

ELECTRICAL CHARACTERISTICS (TA=25^OC 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 = 25^OC
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 (V_Z) Measurement. Guarantees the zener voltage when messured at 90 seconds while maintaining
the lead temperature (T_L) at 30^OC± 1^OC, 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.
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Version: C08