1N4745 DIODES Datasheet

1N4745 Datasheet, PDF, Equivalent


Part Number

1N4745

Description

ZENER DIODES

Manufacture

General Semiconductor

Total Page 3 Pages
Datasheet
Download 1N4745 Datasheet


1N4745
1N4728 THRU 1N4764
ZENER DIODES
DO-41 Glass
FEATURES
Silicon Planar Power Zener Diodes
For use in stabilizing and clipping circuits with
high power rating.
max. 0.102 (2.6)
Standard Zener voltage tolerance is ±10%. Add
suffix “A” for ±5% tolerance. Other Zener voltages and
tolerances are available upon request.
Cathode
Mark
These diodes are also available in the MELF case with type
designation ZM4728 thru ZM4764
max. 0.034 (0.86)
Dimensions in inches and (millimeters)
MECHANICAL DATA
Case: DO-41 Glass Case
Weight: approx. 0.35 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
SYMBOL
RthJA
VF
MIN.
NOTES:
(1) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
VALUE
1.0(1)
175
– 65 to +175
UNIT
Watts
°C
°C
TYP.
MAX.
UNIT
170(1)
°C/W
– 1.2 Volts
12/3/98

1N4745
1N4728 THRU 1N4764
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Type
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
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
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
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 at VR
µA V
100 1
100 1
50 1
10 1
10 1
10 1
10 2
10 3
10 4
10 5
10 6
10 7
10 7.6
5 8.4
5 9.1
5 9.9
5 11.4
5 12.2
5 13.7
5 15.2
5 16.7
5 18.2
5 20.6
5 22.8
5 25.1
5 27.4
5 29.7
5 32.7
5 35.8
5 38.8
5 42.6
5 47.1
5 51.7
5 56.0
5 62.2
5 69.2
5 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


Features 1N4728 THRU 1N4764 ZENER DIODES FEATURES DO-41 Glass ♦ Silicon Planar Power Zener Diodes ♦ For use in stabilizing and clipping circuits with high power rating. ♦ Standard Zener voltage tole rance is ±10%. Add suffix “A” for ±5% tolerance. Other Zener voltages an d tolerances are available upon request . ♦ These diodes are also available i n the MELF case with type designation Z M4728 thru ZM4764 max. .161 (4.1) min. 1.102 (28.0) max. ∅ 0.102 (2.6) Ca thode Mark min. 1.102 (28.0) max. ∅ 0.034 (0.86) MECHANICAL DATA Case: DO -41 Glass Case Weight: approx. 0.35 g Dimensions in inches and (millimeters) MAXIMUM RATINGS Ratings at 25°C ambie nt temperature unless otherwise specifi ed. SYMBOL VALUE UNIT Zener Current (see Table “Characteristics”) Powe r Dissipation at Tamb = 25°C Junction Temperature Storage Temperature Range P tot Tj TS 1.0(1) 175 – 65 to +175 Wat ts °C °C Characteristics at Tamb = 2 5 °C SYMBOL MIN. TYP. MAX. UNIT Thermal Resistance Junction to Ambient Air Forward Voltage.
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