ZENER DIODES. ZM4734 Datasheet

ZM4734 DIODES. Datasheet pdf. Equivalent


Part ZM4734
Description ZENER DIODES
Feature ZM4728 THRU ZM4764 ZENER DIODES MELF FEATURES ♦ Silicon Planar Power Zener Diodes ♦ For use in stab.
Manufacture General Semiconductor
Datasheet
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ZM4734
ZM4728 THRU ZM4764
ZENER DIODES
MELF
Cathode Mark
FEATURES
Silicon Planar Power Zener Diodes
For use in stabilizing and clipping circuits with high
power rating.
.205 (5.2)
.189 (4.8)
.022 (0.55)
Dimensions are in inches and (millimeters)
Standard Zener voltage tolerance is ±10%. Add suf-
fix “A” for ±5% tolerance. Other Zener voltages and
tolerances are available upon request.
These diodes are also available in DO-41 case with the type
designation 1N4728 … 1N4764.
MECHANICAL DATA
Case: MELF Glass Case
Weight: approx. 0.25 g
MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
Zener Current (see Table “Characteristics”)
Power Dissipation at Tamb = 25°C
Junction Temperature
Storage Temperature Range
SYMBOL
Ptot
Tj
TS
Characteristics at Tamb = 25 °C
Thermal Resistance
Junction to Ambient Air
Forward Voltage
at IF = 200 mA
NOTES:
(1) Valid provided that electrodes are kept at ambient temperature
SYMBOL
RthJA
VF
MIN.
VALUE
1.0(1)
150
– 65 to +150
UNIT
Watts
°C
°C
TYP.
MAX.
UNIT
170(1)
°C/W
– 1.2 Volts
12/16/98



ZM4734
ZM4728 THRU ZM4764
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Type
ZM4728
ZM4729
ZM4730
ZM4731
ZM4732
ZM4733
ZM4734
ZM4735
ZM4736
ZM4737
ZM4738
ZM4739
ZM4740
ZM4741
ZM4742
ZM4743
ZM4744
ZM4745
ZM4746
ZM4747
ZM4748
ZM4749
ZM4750
ZM4751
ZM4752
ZM4753
ZM4754
ZM4755
ZM4756
ZM4757
ZM4758
ZM4759
ZM4760
ZM4761
ZM4762
ZM4763
ZM4764
Nominal
Zener
voltage(3)
at
IZT
VZ (V)
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
Test
current
IZT (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
Maximum Zener impedance(1)
ZZT
at IZT
(Ω)
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
ZZK
(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
at
IZK
(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
Maximum
reverse leakage current
IR
A)
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
at VR
(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
Surge
current
at
TA = 25°C
IR (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
regulator
current(2)
IZM (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
NOTES:
(1) The Zener impedance is derived from the 1KHZ 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. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units
(2) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
(3) Measured under thermal equilibrium and DC test conditions







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