MCC
Features
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Hermetic Glass Package
l
Silicon Planar Zener Diodes
omponents
21201 Itasca Street Chatsworth
!"#
$
% !"#
1N4728
THRU
1N4764
1.0 Watt
Zener Diode
3.3 to 100 Volts
DO-41G
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These diodes are also available in the MELF case with type
designation DL4728 thru DL4764.
Mechanical Data
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Case: DO-41 Molded Glass
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Polarity: is indicated by cathode band.
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Weight: 0.378 grams (Approx.)
Maximum Ratings
l
l
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Operating Temperature: -55 C to +150 C
Storage Temperature: -55 C to +150 C
o
o
o
o
D
A
For capacitive load, derate current by 20%
Cathode
Mark
B
Electrical Characteristics @ 25
o
C Unless Otherwise Specified
DC Power
P
d
1.0W
T
A
=100
o
C
Dissipation
Peak Forward
I
FSM
See Page 2
Surge Current
Thermal
R
q
JA
100
o
C/W Note 1
Resistance
Power Derating
P
tot
10mW/
o
C
o
from 100 C
Note:
(1) Valid provided that electrodes at a distance
of 10mm from case are kept at ambient
temperature.
D
C
DIMENSIONS
INCHES
DIM
MIN
A
B
C
D
0.166
0.080
0.026
1.000
MAX
0.205
0.107
0.034
-----
MIN
4.10
2.00
0.70
25.40
MAX
7.60
3.60
0.90
-----
Diameter
Diameter
MM
NOTE
www.mccsemi.com
Version: 3
2003/01/22
1N4728 thru 1N4764
Electrical Characteristics
(T
MCC
PART
NUMBER
ZENER
VOLTAGE
V
Z
TEST
CURRENT
I
ZT
A
MCC
Maximum V
F
= 1.2V at I
F
= 200mA
MAXIMUM
REGULATOR
CURRENT
IZM
T
A
= 50°C
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
MAXIMUM
KNEE
IMPEDANCE
Z
ZK
@ I
ZK
OHMS
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
TEST
CURRENT
I
ZK
MAXIMUM
SURGE
CURRENT
I
S
mA
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
110
95
90
80
70
65
60
55
50
45
MAXIMUM
TEMPERATURE
COEFFICIENT
@I
ZT
%/
O
C
-0.08
-0.08
-0.07
-0.07
-0.03 to +0.04
-0.03 to +0.04
0.045
0.055
0.06
0.065
0.07
0.075
0.08
0.08
0.085
0.085
0.09
0.09
0.09
0.09
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
-----
-----
-----
MAXIMUM
REVERSE
CURRENT
I
R
@ V
R
µA
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
TEST
VOLTAGE
V
R
VOLTS
1
1
1
1
1
1
2
3
4
5
6
7
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
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
= 25°C unless otherwise noted).
MAXIMUM
DYNAMIC
IMPEDANCE
Z
ZT
@ I
ZT
OHMS
10
10
9
9
8
7
5
2
3.5
4.0
4.5
5.0
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
1N4728
1N4729
1N4730
1N4731
1N4732
1N4733
1N4734
1N4735
1N4736
1N4737
1N4738
1N4739
1N4740
1N4741
1N4742
1N4743
1N4744
1N4745
1N4746
1N4747
1N4748
1N4749
1N4750
1N4751
1N4752
1N4753
1N4754
1N4755
1N4756
1N4757
1N4758
1N4759
1N4760
1N4761
1N4762
1N4763
1N4764
VOLTS
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
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
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
Note
1: The JEDEC type number shown with an A suffix have a 5% tolerance on nominal zener voltage. No
suffix signifies a 10% tolerance, C signifies 2%, and D suffix signifies 1% tolerance.
2: The Zener impedance is derived from the 60 Hz ac voltage, which results when an ac current having an
rms value equal to 10% of the DC Zener current(I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener
impedance is measured at two points to insure a sharp knee on the breakdown curve and eliminate
unstable units.
o
3: The reverse surge current is measured at 25 C ambient using a 1/2 square wave or equivalent sine
wave pulse 1/120 second duration superimposed on I
ZT
.
4: Voltage measurements tobe performed 90 seconds after application of DC current.
www.mccsemi.com
Version: 3
2003/01/22
1N4728 thru 1N4764
MCC
A
Ratings and
Characteristic Curves
(T
= 25°C unless otherwise noted)
1N4728 ... 1N4764
www.mccsemi.com
Version: 3
2003/01/22
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