1N4728A - 1N4758A — Zener Diodes
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
1N4728A - 1N4758A Rev. H3 1
April 2009
1N4728A - 1N4758A
Zener Diodes
Absolute Maximum Ratings * Ta = 25°C unless otherwise noted
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Electrical Characteristics Ta = 25°C unless otherwise noted
Symbol Parameter Value Units
PDPower Dissipation
@ TL 50C, Lead Length = 3/8”
1.0 W
Derate above 50C 6.67 mW/C
TJ, TSTG Operating and Storage Temperature Range -65 to +200 C
Device
VZ (V) @ IZ (Note 1) Test Current
IZ (mA)
Max. Zener Impedance Leakage
Current Non-Repetitive
Peak Reverse
Current
IZSM (mA) (Note 2)
Min. Typ. Max. ZZ @ IZ
()
ZZK @
IZK ()
IZK
(mA)
IR
(A)
VR
(V)
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
3.135
3.42
3.705
4.085
4.465
3.3
3.6
3.9
4.3
4.7
3.465
3.78
4.095
4.515
4.935
76
69
64
58
53
10
10
9
9
8
400
400
400
400
500
1
1
1
1
1
100
100
50
10
10
1
1
1
1
1
1380
1260
1190
1070
970
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
4.845
5.32
5.89
6.46
7.125
5.1
5.6
6.2
6.8
7.5
5.355
5.88
6.51
7.14
7.875
49
45
41
37
34
7
5
2
3.5
4
550
600
700
700
700
1
1
1
1
0.5
10
10
10
10
10
1
2
3
4
5
890
810
730
660
605
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
7.79
8.645
9.5
10.45
11.4
8.2
9.1
10
11
12
8.61
9.555
10.5
11.55
12.6
31
28
25
23
21
4.5
5
7
8
9
700
700
700
700
700
0.5
0.5
0.25
0.25
0.25
10
10
10
5
5
6
7
7.6
8.4
9.1
550
500
454
414
380
DO-41 Glass case
COLOR BAND DENOTES CATHODE
Tolerance = 5%
1N4728A - 1N4758A — Zener Diodes
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
1N4728A - 1N4758A Rev. H3 2
Notes:
1. Zener Voltage (VZ)
The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30C ± 1C and 3/8” lead length.
2. 2 Square wave Reverse Surge at 8.3 msec soak time.
Top Mark Information
Device
VZ (V) @ IZ (Note 1) Test Current
IZ (mA)
Max. Zener Impedance Leakage
Current Non-Repetitive
Peak Reverse
Current
IZSM (mA) (Note 2)
Min. Typ. Max. ZZ @ IZ
()
ZZK @
IZK ()
IZK
(mA)
IR
(A)
VR
(V)
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
12.35
14.25
15.2
17.1
19
13
15
16
18
20
13.65
15.75
16.8
18.9
21
19
17
15.5
14
12.5
10
14
16
20
22
700
700
700
750
750
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
9.9
11.4
12.2
13.7
15.2
344
304
285
250
225
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
20.9
22.8
25.65
28.5
31.35
22
24
27
30
33
23.1
25.2
28.35
31.5
34.65
11.5
10.5
9.5
8.5
7.5
23
25
35
40
45
750
750
750
1000
1000
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
16.7
18.2
20.6
22.8
25.1
205
190
170
150
135
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
34.2
37.05
40.85
44.65
48.45
36
39
43
47
51
37.8
40.95
45.15
49.35
53.55
7
6.5
6
5.5
5
50
60
70
80
95
1000
1000
1500
1500
1500
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
27.4
29.7
32.7
35.8
38.8
125
115
110
95
90
1N4758A 53.2 56 58.8 4.5 110 2000 0.25 5 42.6 80
Device Line 1 Line 2 Line 3 Line 4 Line 5
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
LOGO
LOGO
LOGO
LOGO
LOGO
47
47
47
47
47
28
29
30
31
32
A
A
A
A
A
XY
XY
XY
XY
XY
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
LOGO
LOGO
LOGO
LOGO
LOGO
47
47
47
47
47
33
34
35
36
37
A
A
A
A
A
XY
XY
XY
XY
XY
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
LOGO
LOGO
LOGO
LOGO
LOGO
47
47
47
47
47
38
39
40
41
42
A
A
A
A
A
XY
XY
XY
XY
XY
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
LOGO
LOGO
LOGO
LOGO
LOGO
47
47
47
47
47
43
44
45
46
47
A
A
A
A
A
XY
XY
XY
XY
XY
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
LOGO
LOGO
LOGO
LOGO
LOGO
47
47
47
47
47
48
49
50
51
52
A
A
A
A
A
XY
XY
XY
XY
XY
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
LOGO
LOGO
LOGO
LOGO
LOGO
47
47
47
47
47
53
54
55
56
57
A
A
A
A
A
XY
XY
XY
XY
XY
1N4758A LOGO 47 58 A XY
1N4728A - 1N4758A — Zener Diodes
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
1N4728A - 1N4758A Rev. H3 3
Top Mark Information (Continued)
General Requirements:
1.0 Cathode Band
2.0 First Line: F - Fairchild Logo
3.0 Second Line: Device name - For 1Nxx series: 3rd to 4th characters of the device name.
For BZxx series: 4th to 6th characters of the device name.
4.0 Third Line: Device name - For 1Nxx series: 5th to 6th characters of the device name.
For BZXyy series: Voltage rating
5.0 Third Line: Device name - For 1Nxx series: 7th to 8th characters of the device name.
(the 8th character is the large die identification)
For BZXyy series: Large Die Identification character
6.0 Fourth Line: Date Code - Two Digit - Six Weeks Date Code
Where: X represents the last digit of the calendar year
Y represents the Six weeks numeric code
7.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).
8.0 Maximum no. of marking lines: 5
9.0 Maximum no. of digits per line: 3
10.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line.
11.0 Marking Font: Arial (Except FSC Logo)
12.0 First character of each marking line must be aligned vertically.
13.0 All device markings must be based on Fairchild device specification.
F
47
36
A
F
XY
1st line: F - Fairchild Logo
2nd line: Device Name - 3rd to 4th characters of device name for 1Nxx series
or 4th to 6th characters for BZXyy series
3rd line: Device Name - 5th to 6th characters of device name for 1Nxx series
or Voltage rating for BZXyy series
4th line: Device Name - 7th to 8th characters of device name for 1Nxx series
or Large Die identification only for BZXyy series
5th line: Date Code - Two Digit - Six Weeks Date Code