VISHAY 1N746

NEW PRODUCT
NEW PRODUCT
NEW PRODUCT
1N746 THRU 1N759
ZENER DIODES
FEATURES
min. 1.083 (27.5)
♦ Silicon Planar Power Zener Diodes
♦ Standard Zener voltage tolerance is ±5% for
“A” suffix. Other tolerances are available upon
request.
max. ∅.079 (2.0)
Cathode
Mark
min. 1.083 (27.5)
max. .150 (3.8)
DO-35
MECHANICAL DATA
max. ∅.020 (0.52)
Case: DO-35 Glass Case
Weight: approx. 0.13 g
Dimensions are in inches and (millimeters)
MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOL
VALUE
UNIT
Power Dissipation at TL = 75°C
Ptot
500(1)
mW
Maximum Junction Temperature
Tj
175
°C
Storage Temperature Range
TS
– 65 to +175
°C
Zener Current (see Table “Characteristics”)
NOTES:
(1) TL is measured 3/8” from body.
Thermal Resistance
Junction to Ambient Air
Forward Voltage
at IF = 200 mA
SYMBOL
MIN.
TYP.
MAX.
UNIT
RthJA
–
–
300(1)
°C/W
VF
–
–
1.5
Volts
NOTES:
(1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature.
1/6/98
1N746 THRU 1N759
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Type
Number
Nominal
Zener Voltage
VZ @ IZT(3)
(Volts)
Test
Current
IZT
(mA)
Maximum Zener Impedance
ZZT @ IZT(1)
(Ω)
Maximum
Regulator Current
IZM(2)
(mA)
1N746A
3.3
20
28
1N747A
3.6
20
1N748A
3.9
1N749A
4.3
1N750A
Maximum Reverse Leakage Current
TA = 25°C
IR @ VR = 1V
(µA)
TA = 150°C
IR @ VR = 1V
(µA)
110
10
30
24
100
10
30
20
23
95
10
30
20
22
85
2
30
4.7
20
19
75
2
30
1N751A
5.1
20
17
70
1
20
1N752A
5.6
20
11
65
1
20
1N753A
6.2
20
7
60
0.1
20
1N754A
6.8
20
5
55
0.1
20
1N755A
7.5
20
6
50
0.1
20
1N756A
8.2
20
8
45
0.1
20
1N757A
9.1
20
10
40
0.1
20
1N758A
10
20
17
35
0.1
20
1N759A
12
20
30
30
0.1
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 (IZT) is
superimposed on IZT. 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.