1SMA4735A thru 1SMA4764A
1W Zener Diode
Features
■
■
Silicon Power Zener Diodes.
For use in stabilizing and clipping circuits
with high power rating.
Suffix”A” for ±5% tolerance.
DO-214AC (SMA)
■
Maximum Rating
(at 25°C unless otherwise specified)
Parameter
Zener current
Power dissipation at T
L
=70°C
Junction temperature
Storage temperature range
Symbol
P
tot
T
j
T
S
Value
See Next Page
1
150
-55to+150
Unit
W
°C
°C
Electrical Charateristics
(at 25°C unless otherwise specified)
Type number
Device
marking
code
Nominal
zener
voltage at
I
ZT
Vz
(1)
(Volts)
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
Test
current
I
ZT
(mA)
Maximum zener
(2)
impedance
Z
ZT
at I
ZT
(Ω)
2
3.5
4.0
4.5
5.0
7
8
9
10
14
16
20
22
23
25
Z
ZK
(Ω)
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
At I
ZK
(mA)
1.0
1.0
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Maximum
reverse leakage
current
I
R
(uA)
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
at V
R
(Volts)
3
4
5
6
7
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
Maximum
surge
(3)
current
I
RM
(mApk)
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
Maximum
regulator
(4)
current
at
T
A
=50℃
I
ZM
(mA)
161
147
133
122
110
100
83
76
69
61
57
50
45
41
38
1SMA4735A
1SMA4736A
1SMA4737A
1SMA4738A
1SMA4739A
1SMA4740A
1SMA4741A
1SMA4742A
1SMA4743A
1SMA4744A
1SMA4745A
1SMA4746A
1SMA4747A
1SMA4748A
1SMA4749A
4735A
4736A
4737A
4738A
4739A
4740A
4741A
4742A
4743A
4744A
4745A
4746A
4747A
4748A
4749A
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
1/3
1SMA4735A thru 1SMA4764A
1W Zener Diode
Device
marking
code
Nominal
zener
voltage at
I
ZT
Vz
(1)
(Volts)
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
Test
current
I
ZT
(mA)
Maximum zener
(2)
impedance
Z
ZT
at I
ZT
(Ω)
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
Z
ZK
(Ω)
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
At I
ZK
(mA)
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Maximum
reverse leakage
current
I
R
(uA)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
at V
R
(Volts)
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76
Maximum
surge
(3)
current
I
RM
(mApk)
170
150
135
125
115
110
95
90
80
70
65
60
55
50
45
Maximum
regulator
(4)
current
at
T
A
=50℃
I
ZM
(mA)
34
30
27
25
23
22
19
18
16
14
13
12
11
10
9
Type number
1SMA4750A
1SMA4751A
1SMA4752A
1SMA4753A
1SMA4754A
1SMA4755A
1SMA4756A
1SMA4757A
1SMA4758A
1SMA4759A
1SMA4760A
1SMA4761A
1SMA4762A
1SMA4763A
1SMA4764A
4750A
4751A
4752A
4553A
4754A
4755A
4756A
4757A
4758A
4759A
4760A
4761A
4762A
4763A
4764A
9.5
8.5
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.7
3.3
3.0
2.8
2.5
Notes: (1). Measured under thermal equilibrium and DC test conditions , Standard voltage tolerance is 10%,suffix A±5%
(2).The Zener impedance is derived from the 1KHZ AC voltage which results when an AC current having an RMS value
equal to 10% of the Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measure at two points to
insure a sharp knee on the breakdown curve and to eliminate unstable units
(3). Maximum surge current : Surge current is a non-repetitive,8.3ms pulse width square wave or equivalent sine-wave
superimposed on IZT per JEDEC method.
(4).Valid provided that electrodes at a distance of 10 mm from case are kept at ambient temperature
2/3
Parametric
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Analogue and Mixed Signal
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