● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode - Topdiode
ZM4728 thru ZM4761 Silicon Planar Power Zener Diode are for use in stabilizing and clipping circuits with high power rating.
● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode - Topdiode Introduction
ZM4728 thru ZM4761 Silicon Planar Power Zener Diode, standard voltage tolerance is in glass case MELF(LL-41) Surface-Mounted Device (SMD) package.The diode’s standard tolerance is±10%. Suffix "A" for±5% tolerance and suffix "B"
for±2% tolerance. Other tolerances are available upon request.
These diodes are also available in DO-41 case with the type designation 1N4728 ... 1N4761
It also refer to DL4728A....DL4761A
● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode Features
* Silicon planar power Zener diodes
* Glass case MELF(LL-41)
* Wide Tolerance±10%,±5%,±2%.
* Wide voltage range from 3.3V to 75V
● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode Applications
* Voltage stabilization
● ZM4728 ~ ZM4761 Silicon Planar Power Zener Diode Qualification, Lead time, Shipping Terms
* RoHS Compliant
* REACH Compliant
* Ex-work, FCA , or FOB
* 4-6 weeks, regular stock available
● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode Outlines and External Dimensions
● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode Maximum Ratings
Absolute Maximum Ratings (Ta = 25 OC)
|
Parameter
|
Symbol
|
Value
|
Unit
|
|
Power Dissipation
|
Ptot
|
11)
|
W
|
|
Junction Temperature
|
Tj
|
175
|
OC
|
|
Storage Temperature Range
|
Tstg
|
- 65 to + 175
|
OC
|
|
1)Valid provided that electrodes are kept at ambient temperature.
|
Characteristics at Ta = 25 OC
|
Parameter
|
Symbol
|
Max.
|
Unit
|
|
Thermal Resistance Junction to Ambient Air
|
RthA
|
1701)
|
K/W
|
|
Forward Voltage at IF= 200 mA
|
VF
|
1.2
|
V
|
|
1)Valid provided that electrodes are kept at ambient temperature.
|
● ZM4728 thru ZM4761 Silicon Planar Power Zener Diode Electrical Characteristics
ZM4728...ZM4761
Characteristics at Ta = 25 OC
|
Type
|
Zener Voltage3)
|
Dynamic Resistance1)
|
Reverse Current
|
Maximum Surge Current4)
|
Maximum Regulator Current2)
|
|
VZnom
|
at lZT
|
ZZT
|
ZZK
|
at IZK
|
IR
|
at VR
|
at Ta= 25 OC
|
|
(V)
|
(mA)
|
Max. (Ω)
|
Max. (Ω)
|
(mA)
|
Max. (μA)
|
(V)
|
IZSM(mA)
|
IZM(mA)
|
|
ZM4728
|
3.3
|
76
|
10
|
400
|
1
|
150
|
1
|
1375
|
275
|
|
ZM4729
|
3.6
|
69
|
10
|
400
|
1
|
100
|
1
|
1260
|
252
|
|
ZM4730
|
3.9
|
64
|
9
|
400
|
1
|
100
|
1
|
1190
|
234
|
|
ZM4731
|
4.3
|
58
|
9
|
400
|
1
|
50
|
1
|
1070
|
217
|
|
ZM4732
|
4.7
|
53
|
8
|
500
|
1
|
10
|
1
|
970
|
193
|
|
ZM4733
|
5.1
|
49
|
7
|
550
|
1
|
10
|
1
|
890
|
178
|
|
ZM4734
|
5.6
|
45
|
5
|
600
|
1
|
10
|
2
|
810
|
162
|
|
ZM4735
|
6.2
|
41
|
2
|
700
|
1
|
10
|
3
|
730
|
146
|
|
ZM4736
|
6.8
|
37
|
3.5
|
700
|
1
|
10
|
4
|
660
|
133
|
|
ZM4737
|
7.5
|
34
|
4
|
700
|
0.5
|
10
|
5
|
605
|
121
|
|
ZM4738
|
8.2
|
31
|
4.5
|
700
|
0.5
|
10
|
6
|
550
|
110
|
|
ZM4739
|
9.1
|
28
|
5
|
700
|
0.5
|
10
|
7
|
500
|
100
|
|
ZM4740
|
10
|
25
|
7
|
700
|
0.25
|
10
|
7.6
|
454
|
91
|
|
ZM4741
|
11
|
23
|
8
|
700
|
0.25
|
5
|
8.4
|
414
|
83
|
|
ZM4742
|
12
|
21
|
9
|
700
|
0.25
|
5
|
9.1
|
380
|
76
|
|
ZM4743
|
13
|
19
|
10
|
700
|
0.25
|
5
|
9.9
|
344
|
69
|
|
ZM4744
|
15
|
17
|
14
|
700
|
0.25
|
5
|
11.4
|
304
|
61
|
|
ZM4745
|
16
|
15.5
|
16
|
700
|
0.25
|
5
|
12.2
|
285
|
57
|
|
ZM4746
|
18
|
14
|
20
|
750
|
0.25
|
5
|
13.7
|
250
|
50
|
|
ZM4747
|
20
|
12.5
|
22
|
750
|
0.25
|
5
|
15.2
|
225
|
45
|
|
ZM4748
|
22
|
11.5
|
23
|
750
|
0.25
|
5
|
16.7
|
205
|
41
|
|
ZM4749
|
24
|
10.5
|
25
|
750
|
0.25
|
5
|
18.2
|
190
|
38
|
|
ZM4750
|
27
|
9.5
|
35
|
750
|
0.25
|
5
|
20.6
|
170
|
34
|
|
ZM4751
|
30
|
8.5
|
40
|
1000
|
0.25
|
5
|
22.8
|
150
|
30
|
|
ZM4752
|
33
|
7.5
|
45
|
1000
|
0.25
|
5
|
25.1
|
135
|
27
|
|
ZM4753
|
36
|
7
|
50
|
1000
|
0.25
|
5
|
27.4
|
125
|
25
|
|
ZM4754
|
39
|
6.5
|
60
|
1000
|
0.25
|
5
|
29.7
|
115
|
23
|
|
ZM4755
|
43
|
6
|
70
|
1500
|
0.25
|
5
|
32.7
|
110
|
22
|
|
ZM4756
|
47
|
5.5
|
80
|
1500
|
0.25
|
5
|
35.8
|
95
|
19
|
|
ZM4757
|
51
|
5
|
95
|
1500
|
0.25
|
5
|
38.8
|
90
|
18
|
|
ZM4758
|
56
|
4.5
|
110
|
2000
|
0.25
|
5
|
42.6
|
80
|
16
|
|
ZM4759
|
62
|
4
|
125
|
2000
|
0.25
|
5
|
47.1
|
70
|
14
|
|
ZM4760
|
68
|
3.7
|
150
|
2000
|
0.25
|
5
|
51.7
|
65
|
13
|
|
ZM4761
|
75
|
3.3
|
175
|
2000
|
0.25
|
5
|
56
|
60
|
12
|
1) The dynamic resistance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Dynamic resistance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units.
2) Valid provided that electrodes are kept at ambient temperature.
3) Tested with pulses tp = 20 ms.
4) The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT.
