MCC
Micro Commercial Components
TM
omponents
20736 Marilla
Street Chatsworth
!"#
$
% !"#
1N4728
THRU
1N4764
1.0 Watt
Zener Diode
3.3 to 100 Volts
DO-41G
Features
Hermetic Glass Package
Silicon Planar Zener Diodes
These diodes are also available in the MELF case with type
designation DL4728 thru DL4764
Mechanical Data
Case: DO-41 Molded Glass
Marking : Cathode band and type number
Weight: 0.309 grams (Approx.)
Maximum Ratings
Operating Temperature: -65 C to +200 C
Storage Temperature: -65 C to +200 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
Dissipation
Forward
Voltage
Drop
Thermal
Resistance
Power Derating
o
from 100
C
P
d
V
F
R
th
JA
P
tot
1.0W
1.2V
100K/W
10mW/
o
C
Note 1
T
A
≤
50
O
C
D
C
DIMENSIONS
INCHES
DIM
MIN
A
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
Note:
(1) Valid provided that electrodes at a distance
of 10mm from case are kept at ambient
temperature.
B
C
D
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Revision:
7
1 of 4
2007/08/24
1N4728 thru 1N4764
Electrical Characteristics
(T
MCC
Part Number
Zener
Voltage
Test
Current
A
MCC
Micro Commercial Components
= 25°C unless otherwise noted).
TM
Maximum V
F
= 1.2V at I
F
= 200mA
Maximum Reverse
Leakage Current
Surge
Current
Maximum
Regulator
Current
Maximum Dynamic Impedance
V
Z
@I
ZT
Volts
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
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
I
ZT
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
6.5
6
5.5
5
4.5
4
3.7
3.3
3
2.8
2.5
Z
ZT
@I
ZT
OHMS
10
10
9
9
8
7
5
2
3.5
4
4.5
5
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
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
I
ZK
mA
1
1
1
1
1
1
1
1
1
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
I
R
@V
R
uA
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
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
62.2
69.2
76
I
R
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
I
ZM
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
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.
5: RoHs Compliant already and Pb-free sticker on reel , box & carton indicated RoHs compliant .
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Revision:
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2007/08/24
1N4728 thru 1N4764
θ
JL , JUNCTION-TO-LEAD THERMAL RESISTANCE (mV/°C/W)
θV
Z , TEMPERATURE COEFFICIENT (mV/°C)
175
150
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
L, LEAD LENGTH TO HEAT SINK (INCHES)
+6
VZ @ IZ
TA = 25°C
20 mA
MCC
Micro Commercial Components
+4
+2
TM
0
0.01 mA
–2
–4
1 mA
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE:
CHANGES IN ZENER CURRENT DO NOT
NOTE:
EFFECT TEMPERATURE COEFFICIENTS
3
4
5
6
7
8
VZ, ZENER VOLTAGE (VOLTS)
Figure
1.
Typical Thermal Resistance
versus Lead Length
1000
500
200
100
50
20
10
5
2
1
0.1
0.2
0.5
1
2
5
10
IZ, ZENER CURRENT (mA)
20
50
100
6.2 V
TJ = 25°C
iZ(rms) = 0.1 IZ(dc)
f = 60 Hz
1000
700
500
200
100
70
50
20
10
7
5
2
1
1
2
3
5 mA
20 mA
Figure
2.
Effect of Zener Current
Z Z , DYNAMIC IMPEDANCE (OHMS)
Z Z , DYNAMIC IMPEDANCE (OHMS)
VZ = 2.7 V
47 V
27 V
IZ = 1 mA
TJ = 25°C
iZ(rms) = 0.1 IZ(dc)
f = 60 Hz
5
7 10
20 30
VZ, ZENER CURRENT (mA)
50
70 100
Figure
3.
Effect of Zener Current
on Zener Impedance
Figure
4.
Effect of Zener Voltage
on Zener Impedance
Ppk , PEAK SURGE POWER (WATTS)
100
70
50
30
20
10
7
5
3
2
1
0.01
0.02
0.05
0.1
0.2
0.5
10% DUTY CYCLE
20% DUTY CYCLE
5% DUTY CYCLE
11 V–100 V NONREPETITIVE
3.3 V–10 V NONREPETITIVE
RECTANGULAR
WAVEFORM
TJ = 25°C PRIOR TO
INITIAL PULSE
This graph represents 90 percentile data points.
For worst case design characteristics, multiply surge power by 2/3.
1
2
5
PW, PULSE WIDTH (ms)
10
20
50
100
200
500
1000
Figure 5. Maximum Surge Power
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Revision:
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I
2007/08/24
MCC
Micro Commercial Components
TM
***IMPORTANT NOTICE***
Micro Commercial Components Corp
.
reserves the right to make changes without further notice to any
product herein to make corrections, modifications , enhancements , improvements , or other changes .
Micro Commercial Components Corp
.
does not assume any liability arising out of the application or
use of any product described herein; neither does it convey any license under its patent rights ,nor
the rights of others . The user of products in such applications shall assume all risks of such use
and will agree to hold
Micro Commercial Components Corp
.
and all the companies whose
products are represented on our website, harmless against all damages.
***APPLICATIONS DISCLAIMER***
Products offer by
Micro Commercial Components Corp
.
are not intended for use in Medical,
Aerospace or Military Applications.
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Revision:
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4 of 4
2007/08/24
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