1N746 thru 1N759
V
Z
Range 3.3 to 12 Volts
Zener Diodes
Power Dissipation 500mW
Features
Silicon Planar Power Zener Diodes.
Standard Zener voltage tolerance is
±
5% for “A” suffix. Other
tolerances are available upon request.
Mechanical Data
Case: DO-35 Glass Case
Weight: approx. 0.13 gram
Maximum Ratings and Thermal Characteristics
(T
A
=25
o
C unless otherwise noted)
Parameter
Zener current (see Table "Characteristics")
Power dissipation at T
L
=75
o
C
Thermal resistance junction to ambient air
Maximum junction temperature
Storage temperature range
P
tot
R
θ
JA
T
j
T
S
500
300
(1)
Symbol
Value
Unit
mW
o
(2)
C/W
o
175
-65 to +175
C
C
o
Notes:
1. T
L
is measured 3/8" from body.
2. Valid provided that leads at a distance of 3/8" from case are kept at ambient temperature.
483
Electrical Characteristics
(T
J
=25
o
C unless otherwise noted)
Maximum V
F
=1.5V at I
F
=200mA
Maximum reverse leakage current
Nominal
z ener voltage
V
Z
@ I
ZT(3)
(Volts)
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
12
Maximum z ener impedance
Z
ZT
@ I
ZT(1)
(Ω)
Ω
28
24
23
22
19
17
11
7
5
6
8
10
17
30
Type number
1N746A
1N747A
1N748A
1N749A
1N750A
1N751A
1N752A
1N753A
1N754A
1N755A
1N756A
1N757A
1N758A
1N759A
Test current
I
ZT
(mA)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Maximum regulator current
I
ZM(2)
(mA)
110
100
95
85
75
70
65
60
55
50
45
40
35
30
T
A
=25
o
C
I
R
@ V
R
= 1V (
u
A)
10
10
10
2
2
1
1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
T
A
=150
o
C
I
R
@ V
R
= 1V (
u
A)
30
30
30
30
30
20
20
20
20
20
20
20
20
20
Notes:
1. The Zener impedance is derived from the 1 KHz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current
(I
ZT
) is superimposed on I
ZT
. 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 leads at a distance of 3/8" from case are kept at ambient temperature.
3. Measured with device junction in thermal equilibrium.
484
详细参数
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