1SMA4728A-1SMA4764A
Surface Mount Zener Diodes
V
Z
: 3.3 - 100Volts
P
D
: 1 Watt
Features
Complete voltage range 3.3 to 100 volts
High peak reverse power dissipation
High reliability
Low leakage current
Standard zener voltage tolerance is ± 5%.
Pb / RoHS Free
SMA
1.3
±
0.2
5.3
±
0.35
4.2
±
0.25
2.3
±
0.2
Mechanical Data
Case : SMA Molded plastic
Epoxy : UL94V-O rate flame retardant
Polarity : Color band denotes cathode end
Mounting position : Any
Weight : 0.060 gram (Approximately)
1.6
±
0.25
2.6
±
0.15
1.6
±
0.25
Dimensions in millimeters
MAXIMUM RATINGS
Rating at 25 °C ambient temperature unless otherwise specified
Rating
DC Power Dissipation at T
L
= 75 °C (Note1)
Maximum Forward Voltage at I
F
= 200 mA
Junction Temperature Range
Storage Temperature Range
Symbol
P
D
V
F
T
J
T
S
Value
1.0
1.2
- 55 to + 150
- 55 to + 150
Unit
W
V
°C
°C
Note :
(1) P.C.B. Mounted on 0.31x0.31x0.08" (8x8x2mm) copper areas pads.
Fig. 1
P
D
, MAXIMUM DISSIPATION
(WATTS)
1.25
1.00
0.75
0.50
0.25
0
0
MAXIMUM CONTINUOUS POWER DERATING
P.C.B. Mounted on
0.31x0.31x0.08" (8x8x2mm)
copper areas pads
25
50
75
100
125
150
175
T
L,
LEAD TEMPERATURE (°C)
http://www.luguang.cn
mail:lge@luguang.cn
1SMA4728A-1SMA4764A
Surface Mount Zener Diodes
ELECTRICAL CHARACTERISTICS
Type
Device
Marking
Voltage
V
Z
@ I
ZT
I
ZT
(V)
1SMA4728A
1SMA4729A
1SMA4730A
1SMA4731A
1SMA4732A
1SMA4733A
1SMA4734A
1SMA4735A
1SMA4736A
1SMA4737A
1SMA4738A
1SMA4739A
1SMA4740A
1SMA4741A
1SMA4742A
1SMA4743A
1SMA4744A
1SMA4745A
1SMA4746A
1SMA4747A
1SMA4748A
1SMA4749A
1SMA4750A
1SMA4751A
1SMA4752A
1SMA4753A
1SMA4754A
1SMA4755A
1SMA4756A
1SMA4757A
1SMA4758A
1SMA4759A
1SMA4760A
1SMA4761A
1SMA4762A
1SMA4763A
1SMA4764A
728A
729A
730A
731A
732A
733A
734A
735A
736A
737A
738A
739A
740A
741A
742A
743A
744A
745A
746A
747A
748A
749A
750A
751A
752A
753A
754A
755A
756A
757A
758A
759A
760A
761A
762A
763A
764A
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
(mA)
76.0
69.0
64.0
58.0
53.0
49.0
45.0
41.0
37.0
34.0
31.0
28.0
25.0
23.0
21.0
19.0
17.0
15.5
14.0
12.5
11.5
10.5
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
Rating at 25
°
C ambient temperature unless otherwise specified
Nominal Zener
Maximum Zener
I
ZK
(mA)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
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
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
@ V
R
(
μ
A)
100
100
50
10
10
10
10
10
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
(V)
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
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
76.0
Maximum DC
Zener Current
I
ZM
(mA)
276
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
38
34
30
27
25
23
22
19
18
16
14
13
12
11
10
9.0
Maximum
Surge Current
I
RM(2)
(mApk)
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
305
285
250
225
205
190
170
150
135
125
115
110
95
90
80
70
65
60
55
50
45
Impedance
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
(Ω)
10
10
9.0
9.0
8.0
7.0
5.0
2.0
3.5
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
(Ω)
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
Notes :
(1) The type number listed have a standard tolerance on the nominal zener voltage of
±
5%.
(2) The revese surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed
on I
ZT
per JEDEC Method
http://www.luguang.cn
mail:lge@luguang.cn
Microcontroller MCU
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