Watt Zeners. 1N749A Datasheet


1N749A Zeners. Datasheet pdf. Equivalent


1N749A


Half Watt Zeners
1N746A - 1N759A Series

Discrete POWER & Signal Technologies

N
1N746A - 1N759A Series Half Watt Zeners
Absolute Maximum Ratings*
Parameter
Storage Temperature Range Maximum Junction Operating Temperature Lead Temperature (1/16” from case for 10 seconds) Total Device Dissipation Derate above 25°C
TA = 25°C unless otherwise noted

Tolerance: A = 5%

Value
-65 to +200 + 175 + 230 500 3.33

Units
°C °C °C mW mW/ °C

* These ratings are limiting values above which the serviceability of the diode may be impaired.

DO-35
NOTES: 1) These ratings are based on a maximum junction temperature of 200 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.

Electrical Characteristics
Device
1N746A 1N747A 1N748A 1N749A 1N750A 1N751A 1N752A 1N753A 1N754A 1N755A 1N756A 1N757A 1N758A 1N759A

TA = 25°C unless otherwise noted

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 12

(Ω) 28 24 23 22 19 17 11 7.0 5.0 6.0 8.0 10 17 30

ZZ

@

IZT
(mA) 20 20 20 20 20 20 20 20 20 20 20 20 20 20

(µ A) 10 10 10 2.0 2.0 1.0 1.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1

IR1

@

VR
(V) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0

(µ A) 30 30 30 30 30 20 20 20 20 20 20 20 20 20

IR2

@ TA=150° C (V) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0

VR

(%/° C) - 0.070 - 0.065 - 0.060 +/- 0.055 +/- 0.030 +/- 0.030...



1N749A
N
Discrete POWER & Signal
Technologies
1N746A - 1N759A Series Half Watt Zeners
Absolute Maximum Ratings* TA = 25°C unless otherwise noted
Parameter
Value Units
Storage Temperature Range
-65 to +200
°C
Maximum Junction Operating Temperature
+ 175
°C
Lead Temperature (1/16” from case for 10 seconds)
+ 230
°C
Total Device Dissipation
Derate above 25°C
500 mW
3.33 mW/°C
*These ratings are limiting values above which the serviceability of the diode may be impaired.
NOTES:
1) These ratings are based on a maximum junction temperature of 200 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed
or low duty cycle operations.
Tolerance: A = 5%
DO-35
Electrical Characteristics TA = 25°C unless otherwise noted
Device
1N746A
1N747A
1N748A
1N749A
1N750A
1N751A
1N752A
1N753A
1N754A
1N755A
1N756A
1N757A
1N758A
1N759A
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
12
ZZ
()
@
IZT
(mA)
28 20
24 20
23 20
22 20
19 20
17 20
11 20
7.0 20
5.0 20
6.0 20
8.0 20
10 20
17 20
30 20
IR1
(µA)
@
VR
(V)
10 1.0
10 1.0
10 1.0
2.0 1.0
2.0 1.0
1.0 1.0
1.0 1.0
0.1 1.0
0.1 1.0
0.1 1.0
0.1 1.0
0.1 1.0
0.1 1.0
0.1 1.0
IR2
(µA)
VR
@ TA=150°C
(V)
30 1.0
30 1.0
30 1.0
30 1.0
30 1.0
20 1.0
20 1.0
20 1.0
20 1.0
20 1.0
20 1.0
20 1.0
20 1.0
20 1.0
TC
(%/°C)
- 0.070
- 0.065
- 0.060
+/- 0.055
+/- 0.030
+/- 0.030
+ 0.038
+ 0.045
+ 0.050
+ 0.058
+ 0.062
+ 0.068
+ 0.075
+ 0.077
IZM*
(mA)
110
100
95
85
75
70
65
60
55
50
45
40
35
38
*IZM (Maximum Zener Current Rating) Values shown are based on the JEDEC rating of 400 milliwatts. Where the actual zener voltage (VZ) is known
at the operating point, the maximum zener current may be increased and is limited by the derating curve.

1N749A
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