• Total power dissipation: Max. 2 W.
• Wide zener reverse voltage range 3.3V to 330V.
• Small plastic package suitable for surface mounted design.
ELECTRONICS CO.,LTD
HUAXUANYANG HXY
1SMA4728A-1SMA4777A
Plastic-Encapsulate Zener Diodes
SMA
Features
Product ID
Qty(PCS)
XX
SMA
1SMA4728A-
30
00
1SMA4777A
XX=Device code, see table on page2 the marking code.
The marking bar indicates the cathode.
Package Marking and Ordering Information
Pack Marking
Charact
eristic Symbol Value Unit
Forward voltage @I
F
=200mA V
F
1.2 V
Power Dis
sipation P
D
2 W
Thermal Resist
ance, Junction to Ambient Air R
θJA
556 ℃/W
Notes: Devic
e mounted on ceramic PCB;5.0mm×7.0mm with pad areas 35 mm
2
Junction T
emperature T
j
150
℃
St
orage Temperature Range T
stg
-55 ~ +
150
℃
Absolute Maximum Ratings(Ta=25 )
℃
www.hxymos.com
Shenzhen HuaXuanYang Electronics CO.,LTD
Type
Zener Voltage Range
（1
Marking
）
V
ZT
（at I
ZT
）
Dynamic
Impedanc
I
ZT
e
Reverse Current
Z
ZT
（at I
ZT
）
I
R
at V
R
Max（μA
Max (Ω)
）
Min（V Nom（V （V））） Max（V）
Admissible
Zener Curren
(mA)
t
I
ZM
(mA)
5.1
5.6
6.2
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
6.
36
8
4.8
39
4
5.32
5.86
7.12
7.79
8.60
9.50
10.4
11.4
12.4
13.8
15.2
16.8
19.0
20.8
22.8
25.3
28.2
31.3
6.4
34.2
6
5.3
37.2
6
5.92
6.51
7.88
8.67
9.59
10.5
11.6
12.6
14.1
15.8
17.1
19.2
21.2
23.3
26.0
28.9
32.0
34.9
7.1
37.9
8
4
41.5
9
45
41
34
31
28
25
23
21
19
17
16
14
13
12
11
9.5
8.5
7.5
3
7.0
7
7.
6.5
0
5.0
2.0
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
3.
50
5
1
60
0
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
1
5
0
5
1
2
3
5
6
7
7
8
9
10
11
12
13
15
17
18
21
23
25
27
4
3.
30
5
6
3.9
4.3
3.4
4.7
0
3.70
4.06
3.8
4.50
0
4.10
4.56
6
4.93
9
64
58
1
53
0
9.0
9.0
10
8.0
0
50
25
10
1
1
1
3.1 3.
1
30 3.50 75 10 100
1
64.6
71.2
77.9
95.0
71.
86.0
7
78.8
87.0
105
3.
96.0
7
3.3
3.0
2.5
15
2.8
0
175
200
350
5
250
2
56
62
76
44.
4
69
7
9
48.6
53.6
49.
58.9
8
54.0
58.8
5.
65.6
5
5.0
4.5
8
4.0
0
95
110
3
125
5
38
42
40. 4
47
39 45.6 6.0 70
1
32
68
75
82
100
5
91
1
56
62
1
1
1
1
1
1
1
1
1
186
170
154
127
116
104
95
86
79
71
63
58
52
47
43
38
35
31
28
14
26
0
26
24
3
243
219
28
203
5
2
20
2
14
12
11
9.5
1
10
8
17
15
1
SMA4728A
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
Electrical Characteristics (Ta=25℃ unless otherwise specified)
ELECTRONICS CO.,LTD
HUAXUANYANG HXY
1SMA4728A-1SMA4777A
Plastic-Encapsulate Zener Diodes
www.hxymos.com
Shenzhen HuaXuanYang Electronics CO.,LTD