HY 1N4728A

1N4728A thru 1N4764A
ZENER DIODE
REVERSE VOLTAGE - 3.3 to 100 Volts
DO- 41
FEATURES
● High reliability
● Very sharp reverse characteristic
● Low reverse current level
●Vz-tolerance±5%
1.0(25.4)
MIN.
.034(0.9)
DIA
.028(0.7)
.205(5.2)
MAX
APPLICATIONS
.107(2.7)
DIA
.080(2.0)
● Voltage stabilization
1.0(25.4)
MIN.
Dimensions in inches and (millimeters)
ABSOLUTE MAXIMUM RATINGS
TJ=25℃
Parameter
Test Conditions
Power dissipation
Type
Symbol
Tamb≤50℃
Value
Unit
Pv
1
W
Z-current
Iz
Pv/Vz
mA
Junction temperature
Tj
200
℃
Tstg
-65 ~ +175
℃
Test Conditions
Symbol
Value
Unit
I=9.5mm(3/8") TL=constant
RthJA
100
K/W
Storage temperature range
MAXIMUM THERMAL RESISTANCE
TJ=25℃
Parameter
Junction ambient
ELECTRICAL CHARACTERISTICS
TJ=25℃
Parameter
Forward voltage
Test Conditions
IF=200mA
~ 407 ~
Type
Symbol
VF
Min
Typ
Max
Unit
1.2
V
RATING AND CHARACTERISTIC CURVES
1N4728A thru 1N4764A
I
Symbol
Parameter
IF
Vz
Reverse Zener Voltage@ IZT
IZT
Reverse current
ZZT
Maximum zener impedance @ IZT
IZK
Reverse current
ZZK
Maximum zener impedance @ Izk
IR
Reverse leakage current @ VR
VR
Breakdown voltage
IF
Forward current
VF
Forward voltage @ IF
V
V
Z
R
V
I
VF
IZT
FIG. 1 - ZENER VOLTAGE REGULATOR
+12
+10
+8
+6
+4
Vz @ IZT
+2
RANG
0
-2
-4
2
3
4
5
6
7
8
9
10
11
12
TEMPERATURE COEFFICIENT (Mv / °C)
TEMPERATURE COEFFICIENT (mV / °C)
FIG.2 - TEMPERATURE COEFFICIENTS
(-55°C to +150°C temperature;90% of the units are in the ranges indicated.)
100
70
50
Vz @ IZT
30
20
RANGE
10
7
5
3
2
1
10
20
30
50
ZENER VOLTAGE (VOLTS)
ZENER VOLTAGE (VOLTS)
1000
500
500
DYNAMIC IMPEANCE (OHMS)
DYNAMIC IMPEANCE (OHMS)
1000
100
50
20
10
5
2
1
100
FIG.4 - EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE
FIG.3 - EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE
200
70
TJ=25°C
Iz(ms)=0.1 Iz(dc)
f=60Hz
Iz-1mA
200
10
5mA
5
20mA
2
10
5
2
1
0.1 0.2
0.5
1
2
5
10 20
ZENER CURRENT (mA)
50
100
~ 408 ~
1
2
3
5 7 10
20 30
ZENER CURRENT (mA)
50 70 100
1N4728A thru 1N4764A
OPRERATING AND STORAGE TEMPERATURE -55℃ to +200℃
1W ZENER DIODES/DO-35/DL-41(MELF)
Nominal
Maximum Zener
Impedance
Maximum Reverse
Leakage Current
Maximum
Surge
Current
IR
Maximum
Regulation
Current IZM
VZ @ IZT
Test
Current
IZT
ZZT @ IZT
ZZT @ IZK
IR
@ VR
Volts
mA
Ohms
Ohms
mA
μA
Volts
mA
mA
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
3.3
39
76.0
69.0
64.0
58.0
53.0
49.0
45.0
41.0
37.0
34.0
31.0
28.0
25.0
23.0
21.0
19.0
17.0
15.5
14.0
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
10
10
9.0
9.0
8.0
7.0
5.0
2.0
3.5
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
50
60
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
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.50
0.50
0.50
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
100
100
50
10
10
10
10
10
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
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
1380
1260
1170
1085
965
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
276
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
37
34
30
27
25
23
1N4755A
43
6.0
70
1500
0.25
5.0
32.7
110
22
1N4756A
1N4757A
1N4758A
47
56
5.5
5.0
4.5
80
95
110
1500
1500
2000
0.25
0.25
0.25
5.0
5.0
5.0
35.8
38.8
42.6
95
90
80
16
18
16
1N4759A
63
4.0
125
2000
0.25
5.0
47.1
70
14
1N4760A
1N4761A
1N4762A
68
75
82
3.7
3.3
3.0
150
175
200
2000
2000
2000
0.25
0.25
0.25
5.0
5.0
5.0
51.7
56.0
62.2
65
60
55
13
12
11
1N4763A
91
2.8
250
2000
0.25
5.0
69.2
50
10
1N4764A
100
2.5
350
2000
0.25
5.0
76.0
45
9.0
Zener
TYPE
Voltage
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
51
NOTE: 1.Suffix "A" Indicates ±5% Tolerance.
~ 409 ~
IZK