Surface Mount Zener Diodes
SMA4728A - SZ1330A Series
Features
u
u
u
u
u
u
u
Glass passivated chip
Low leakage
Built-in strain relief
Low inductance
High peak reverse power dissipation
Lead-Free component
For use in stabilizing and clipping with high power rating
V
Z
: 3.3 To 330 V
P
D
: 1 W
Mechanical Data
u
u
u
u
u
Case: Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Solderable per MIL-STD-750, method 2026
Polarity: Color band denotes cathode end
Mounting position: Any
Schematic Symbol
Cathode
Anode
Maximum Ratings
(T
A
=25℃ unless otherwise noted)
Parameter
Symbol
P
D
V
F
(2)
Value
1
1.2
170
-55 to +175
-55 to +175
Unit
W
V
K/W
DC power dissipation at T
L
= 50
°C
(1)
Maximum forward voltage at I
F
= 200 mA
Maximum thermal resistance junction to ambient air
Junction temperature range
Storage temperature range
Notes:
(1)
(2)
TL=Lead temperature 3/8″ (9.5mm) from body
R
θJA
T
J
T
STG
°C
°C
Valid provided that leads are kept at ambient temperature a distance of 10mm from case
SOCAY Electronics Co., Ltd.
Revision November 21, 2013
www.socay.com
1/5
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Zener Diodes
SMA4728A - SZ1330A Series
V
Z
: 3.3 To 330 V
P
D
: 1 W
Electrical Characteristics (T
A
=25℃ unless otherwise noted)
Nominal Zener
Voltage
Part Number
Marking
V
Z
@I
ZT
(V)
SMA4728A
SMA4729A
SMA4730A
SMA4731A
SMA4732A
SMA4733A
SMA4734A
SMA4735A
SMA4736A
SMA4737A
SMA4738A
SMA4739A
SMA4740A
SMA4741A
SMA4742A
SMA4743A
SMA4744A
SMA4745A
SMA4746A
SMA4747A
SMA4748A
SMA4749A
SMA4750A
SMA4751A
SMA4752A
SMA4753A
SMA4754A
SMA4755A
SMA4756A
SMA4757A
SMA4758A
SMA4759A
SMA4760A
SMA4761A
SMA4762A
SMA4763A
SMA4764A
28A
29A
30A
31A
32A
33A
34A
35A
36A
37A
38A
39A
40A
41A
42A
43A
44A
45A
46A
47A
48A
49A
50A
51A
52A
53A
54A
55A
56A
57A
58A
59A
60A
61A
62A
63A
64A
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10.0
11.0
12.0
13.0
15.0
16.0
18.0
20.0
22.0
24.0
27.0
30.0
33.0
36.0
39.0
43.0
47.0
51.0
56.0
62.0
68.0
75.0
82.0
91.0
100.0
I
ZT
(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
Z
ZT
@I
ZT
(Ω)
10.0
10.0
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
10.0
14.0
16.0
20.0
22.0
23.0
25.0
35.0
40.0
45.0
50.0
60.0
70.0
80.0
95.0
110.0
125.0
150.0
175.0
200.0
250.0
350.0
Z
ZK
@I
ZK
(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
I
ZK
(mA)
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.50
0.50
0.50
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 Zener Impedance
Maximum
Reverse Leakage
Maximum
DC Zener
Current
IZM
(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
(mA)
274.0
251.0
232.0
210.0
192.0
177.0
161.0
146.0
133.0
121.0
110.0
100.0
91.0
83.0
76.0
69.0
61.0
57.0
50.0
45.0
41.0
38.0
34.0
30.0
27.0
25.0
23.0
22.0
19.0
18.0
16.0
14.0
13.0
12.0
11.0
10.0
9.0
Maximum
Surge
Current
IRM
(mApk)
1370
1255
1160
1050
960
885
805
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
Current
I
R
@V
R
(μA)
100.0
100.0
50.0
10.0
10.0
10.0
10.0
10.0
5.0
5.0
5.0
0.5
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
SOCAY Electronics Co., Ltd.
Revision November 21, 2013
www.socay.com
2/5
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Zener Diodes
SMA4728A - SZ1330A Series
V
Z
: 3.3 To 330 V
P
D
: 1 W
Electrical Characteristics (T
A
=25℃ unless otherwise noted)
Nominal Zener
Voltage
Part Number
Marking
V
Z
@I
ZT
(V)
SZ1110A
SZ1120A
SZ1130A
SZ1150A
SZ1160A
SZ1180A
SZ1200A
SZ1220A
SZ1240A
SZ1250A
SZ1270A
SZ1300A
SZ1330A
11Z
12Z
13Z
15Z
16Z
18Z
20Z
22Z
24Z
25Z
27Z
30Z
33Z
110.0
120.0
130.0
150.0
160.0
180.0
200.0
220.0
240.0
250.0
270.0
300.0
330.0
I
ZT
(mA)
2.3
2.0
1.9
1.7
1.6
1.4
1.2
1.0
0.9
0.9
0.8
0.8
0.7
Z
ZT
@I
ZT
(Ω)
450.0
550.0
700.0
1000.0
1100.0
1200.0
1900.0
1600.0
1800.0
2000.0
2100.0
2300.0
2500.0
Z
ZK
@I
ZK
(Ω)
4000
4500
5000
6000
6500
7000
9990
8000
8500
9000
9000
9500
9500
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
Maximum Zener Impedance
Maximum
Reverse Leakage
Maximum
DC Zener
Current
IZM
(V)
83.6
91.2
98.8
114.0
121.6
136.8
152.0
167.2
182.4
190.0
205.0
228.0
250.2
(mA)
8.6
7.8
7.0
6.4
5.8
5.2
4.7
4.0
3.8
3.6
3.3
3.0
2.7
Maximum
Surge
Current
IRM
(mApk)
40
37
34
30
28
25
22
20
19
18
16
15
13
Current
I
R
@V
R
(μA)
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
Note:
(1) The type number listed have a standard tolerance on the nominal zener voltage of
±
5 %
(2) The reverse surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on I
ZT
per JEDEC
SOCAY Electronics Co., Ltd.
Revision November 21, 2013
www.socay.com
3/5
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Zener Diodes
SMA4728A - SZ1330A Series
V
Z
: 3.3 To 330 V
P
D
: 1 W
Ratings and Characteristic Curves (T
A
=25°C unless otherwise noted)
Figure 1 - Power Temperature Derating Curve
1.0
Maximum Power Dissipation, P
D
(W)
Temperature Coefficient,
θV
Z
, (mV/°C)
Figure 2 -Temperature Coefficients v.s. Zener Voltage
100
0.8
0.6
0.4
Range
10
0.2
0.0
0
25
50
75
100
125
150
175
200
T
L
- Lead Temperature(°C)
1
10
Zener Voltage, V
Z
(V)
100
Figure 3 - Typical Thermal Resistance v.s. Lead Length
Junction to Lead Thermal Resistance
Θ
JL
,
(°C/W)
175
150
135
100
75
50
25
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Lead Length to Heatsink, L, (inches)
Figure 4 - Maximum Surge Power
100
11V-91V Non-Repetitive
5% Duty Cycle
Rectangular Waveform T
J
=25°C
Prior to Initial
Peak Surge Power, P
PK
, (W)
10
10% Duty Cycle
20% Duty Cycle
1
0.01
0.1
10
Pulse Width, P
W
, (S)
100
1000
SOCAY Electronics Co., Ltd.
Revision November 21, 2013
www.socay.com
4/5
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Zener Diodes
SMA4728A - SZ1330A Series
Dimensions
DO-214AC (SMA)
Cathode Band
V
Z
: 3.3 To 330 V
P
D
: 1 W
Inches
Dimensions
Min
A
B
C
D
E
F
G
H
I
J
K
L
0.049
0.162
0.099
0.077
0.030
-
0.192
0.006
0.070
0.082
-
0.082
Max
0.064
0.179
0.109
0.089
0.060
0.008
0.206
0.012
-
-
0.090
-
Millimeters
Min
1.230
4.10
2.510
1.960
0.750
-
4.87
0.152
1.800
2.100
-
2.100
Max
1.630
4.550
2.760
2.260
1.510
0.203
5.220
0.305
-
-
2.300
-
SOCAY Electronics Co., Ltd.
Revision November 21, 2013
www.socay.com
5/5
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
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