Axial Lead Zener Diode
1N4728A-G Thru. Z1330A-G
Zener Voltage: 3.3 to 330 Volts
DC Power: 1 Watts
RoHS Device
Features
- Glass passivated chip.
- Low leakage.
- Built-in strain relief.
- Low inductance.
- High peak reverse power dissipation.
- For use in stabilizing and clipping circuits
with high power rating.
0.117(2.97) DIA.
0.078(2.00) DIA.
0.205(5.21)
0.161(4.10)
1.000(25.40) Min.
DO-41
Mechanical data
- Case: Molded plastic.
- Epoxy: UL 94V-0 rate flame retardant.
- Terminals: Solderable per MIL-STD-202,
-
method 208 guranteed.
- Polarity: Color band denotes cathode end.
- Mounting position: Any.
- Approx. weight: 0.35 grams(approx.).
0.035(0.90) DIA.
0.027(0.70) DIA.
1.000(25.40) Min.
Dimensions in inches and (millimeter)
Maximum Ratings and Electrical Characteristics
Ratings at 25°C ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristics
DC power dissipation at T
L
=75°C (Note 1)
Maximum forward voltage at I
F
=200 mA
Maximum thermal resistance junction
to ambient air (Note 2)
Junction temperature range
Storage temperature range
Symbol
P
D
Value
1
Units
W
V
F
1.2
V
R
ΘJA
170
°C/W
T
J
-55 to +175
°C
T
STG
-55 to +175
°C
Notes:
1. T
L
= Lead temperature at 3/8” (9.5mm) from body.
2. Valid provided that leads are kept at ambient temperature at a distance of 10mm from case.
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ007
REV: E
Page 1
Comchip Technology CO., LTD.
Axial Lead Zener Diode
Electrical Characteristics (1N4728A-G Thru. Z1330A-G)
Nominal Zener
Voltage
Part No
V
Z
@I
ZT
(V)
I
ZT
(mA)
Maximum Zener Impedance
Z
ZT
@I
ZT
(Ω)
Z
ZK
@I
ZK
(Ω)
I
ZK
(mA)
Maximum Reverse
Leakage Current
I
R
@V
R
(μA)
(V)
Maximum
DC Zener
Current
I
ZM
(mA)
Maximum
Surge
Current
I
RM
(mApk)
Marking
Code
1N4728A-G
1N4729A-G
1N4730A-G
1N4731A-G
1N4732A-G
1N4733A-G
1N4734A-G
1N4735A-G
1N4736A-G
1N4737A-G
1N4738A-G
1N4739A-G
1N4740A-G
1N4741A-G
1N4742A-G
1N4743A-G
1N4744A-G
1N4745A-G
1N4746A-G
1N4747A-G
1N4748A-G
1N4749A-G
1N4750A-G
1N4751A-G
1N4752A-G
1N4753A-G
1N4754A-G
1N4755A-G
1N4756A-G
1N4757A-G
1N4758A-G
1N4759A-G
1N4760A-G
1N4761A-G
1N4762A-G
1N4763A-G
1N4764A-G
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
76.00
69.00
64.00
58.00
53.00
49.00
45.00
41.00
37.00
34.00
31.00
28.00
25.00
23.00
21.00
19.00
17.00
15.50
14.00
12.50
11.50
10.50
9.50
8.50
7.50
7.00
6.50
6.00
5.50
5.00
4.50
4.00
3.70
3.30
3.00
2.80
2.50
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
10.0
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
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
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
100
100
50
10
10
10
10
10
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
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
274.00
251.00
232.00
210.00
192.00
177.00
161.00
146.00
133.00
121.00
110.00
100.00
91.00
83.00
76.00
69.00
61.00
57.00
50.00
45.00
41.00
38.00
34.00
30.00
27.00
25.00
23.00
22.00
19.00
18.00
16.00
14.00
13.00
12.00
11.00
10.00
9.00
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
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
Notes:
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 method.
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ007
REV: E
Page 2
Comchip Technology CO., LTD.
Axial Lead Zener Diode
Electrical Characteristics (1N4728A-G Thru. Z1330A-G)
Nominal Zener
Voltage
Part No
V
Z
@I
ZT
(V)
I
ZT
(mA)
Maximum Zener Impedance
Z
ZT
@I
ZT
(Ω)
Z
ZK
@I
ZK
(Ω)
I
ZK
(mA)
Maximum Reverse
Leakage Current
I
R
@V
R
(μA)
(V)
Maximum
DC Zener
Current
I
ZM
(mA)
Maximum
Surge
Current
I
RM
(mApk)
Marking
Code
Z1110A-G
Z1120A-G
Z1130A-G
Z1150A-G
Z1160A-G
Z1180A-G
Z1200A-G
Z1220A-G
Z1240A-G
Z1250A-G
Z1270A-G
Z1300A-G
Z1330A-G
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
2.30
2.00
1.90
1.70
1.60
1.40
1.20
1.10
0.90
0.90
0.80
0.80
0.70
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
4000
4500
5000
6000
6500
7000
9990
8000
8500
9000
9000
9500
9500
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
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
83.6
91.2
98.8
114.0
121.6
136.8
152.0
167.2
182.4
190.0
205.0
228.0
250.0
8.60
7.80
7.00
6.40
5.80
5.20
4.70
4.00
3.80
3.60
3.30
3.00
2.70
40
37
34
30
28
25
22
20
19
18
16
15
13
Z1110A
Z1120A
Z1130A
Z1150A
Z1160A
Z1180A
Z1200A
Z1220A
Z1240A
Z1250A
Z1270A
Z1300A
Z1330A
Notes:
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 method.
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ007
REV: E
Page 3
Comchip Technology CO., LTD.
Axial Lead Zener Diode
RATING AND CHARACTERISTIC CURVES (1N4728A-G Thru. Z1330A-G)
Fig.1 - Power Temperature Derating Curve
Temperature Coefficient,
ΘVz
(mV/°C)
1.4
100
Fig.2 - Temperature Coefficients
v.s. Zener Voltage
Max. Power Dissipation, P
D
(W)
1.2
1.0
0.8
0.6
0.4
0.2
0
Range
10
1
0
25
50
75
100
125
150
175
1
100
Lead Temperature, T
L
(°C)
Zener Voltage,Vz (V)
Fig.3 - Typical
Thermal Resistance
v.s.
Lead Length
175
150
Junction to Lead Thermal
Resistance ,
Θ
JL
(°C/W)
125
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)
Fig.4 - Maximum Surge Power
100
Rectangular waveform
T
J
=25°C prior to initial pulse
Peak Surge Power, P
pk
(W)
5% duty cycle
11V-91V Non-Repetitive
10
10% duty cycle
20% duty cycle
1
0.01
0.1
1
10
100
1000
Pulse Width, PW (ms)
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ007
REV: E
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Comchip Technology CO., LTD.
Axial Lead Zener Diode
Taping Specification For Axial Lead Diodes
A
Z
90°± 5°
E
L
1
B
L
2
E
T
D
0
W
0
D
1
L
H
D
W
SYMBOL
A
5.00 ± 0.50
B
52.40 ± 1.50
Z
1.60 (max)
0.063 (max)
T
6.00 ± 0.40
0.236 ± 0.016
E
3.00 (max)
0.118 (max)
|L
1
-L
2
|
1.00 (max)
0.039 (max)
DO-41
(mm)
(inch)
SYMBOL
0.197 ± 0.020 2.063 ± 0.059
D
1
85.70 ± 0.30
3.374 ± 0.012
D
0
16.60 ± 0.40
0.654 ± 0.016
D
330.00
12.992
W
0
72.00 ± 3.00
2.835 ± 0.118
L
260.00 ± 5.00
W
80.00 ± 5.00
H
145.00 ± 5.00
5.709 ± 0.197
DO-41
(mm)
(inch)
10.236 ± 0.197 3.149 ± 0.197
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ007
REV: E
Page 5
Comchip Technology CO., LTD.
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