山东晶导微电子股½有限公司
Jingdao Microelectronics co.LTD
Silicon Planar Zener Diodes
1SMA4728A THRU 1SMA4777A
PINNING
FEATURES
• Total power dissipation: Max. 1 W.
• Wide zener reverse voltage range 3.3V to 330V.
• Small plastic package suitable for surface mounted design.
MECHANICAL DATA
• Case: SMA
• Terminals: Solderable per MIL-STD-750, Method 2026
• A pprox. Weight: 0.055g / 0.002oz
PIN
1
2
DESCRIPTION
Cathode
Anode
2
1
Simplified outline SMA and symbol
Absolute Maximum Ratings And Characteristics
（
Ta = 25
°C）
Parameter
Power Dissipation at T
c
=75
°C
Forward Voltage at I
F
= 200 mA
Junction Temperature Range
Storage Temperature Range
Symbol
P
D
V
F
T
J
T
S
Value
1
1.2
- 55 to + 150
- 55 to + 150
Unit
W
V
°C
°C
Fig.1 Maximum Continuous Power Derating
1.2
1.0
Power Dissipation (
W
)
0.8
0.6
0.4
0.2
0.0
25
50
75
100
125
150
175
T
c
,Case Temperature (
°C)
2016.10
SMA-W- 1SMA4728A~ 1SMA4777A-1W
Page 1 of 3
山东晶导微电子股½有限公司
Jingdao Microelectronics co.LTD
1SMA4728A THRU 1SMA4777A
PACKAGE OUTLINE
Plastic surface mounted package; 2 leads
SMA
A
c
a
VM
A
A
H
E
e
D
A
g
g
E
e
UNIT
mm
max
min
max
mil
min
A
2.2
1.9
87
75
D
4.5
4.0
181
157
E
2.7
2.3
106
91
H
E
c
0.31
0.15
12
6
e
1.6
1.3
63
51
g
1.5
0.9
59
35
5.2
4.7
205
185
0.3
12
The recommended mounting pad size
1.8
(71)
2.4
(94)
1.8
(71)
2016.10
www.sdjingdao.com
1.8
(71)
mm
Unit
：
(mil)
e
a
Page 3 of 3
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