Silicon Zener Diodes:
Sharp Breakdown, Low Leakage LVA Regulator
The family of Aeroflex / Metelics Silicon Zener Avalanche Diodes includes a variety of models in various voltage ranges. They feature sharp breakdown and low leakage LVA regulators. Certain models also feature exceptionally low noise, low impedance and sharp knees for high performance, low current applications.
- Sharper Breakdown
- Lower Leakage Current Characteristics in the
4–10 Volt range
and the
5–9 Volt range.
Sharp Breakdown, Low
Leakage LVA Regulator, 4–10 Volt Range
|
Model
|
Voltage Vz @ Izt
Vdc
|
Test Current Izt
mA
|
Zener Impedance
Zzt @ Izt
Ω
|
Reverse Leakage Current
Max
|
Noise Density
@ 250 µA
|
TYP
|
Max
|
IR µAdc
|
VR Vdc
|
Max
|
LVA43A
|
4.3
|
20
|
18
|
4.0
|
1.5
|
4
|
LVA47A
|
4.7
|
10
|
15
|
4.0
|
2.0
|
4
|
LVA51A
|
5.1
|
5
|
15
|
0.1
|
2.0
|
4
|
LVA56A
|
5.6
|
1
|
40
|
0.05
|
3.0
|
4
|
LVA62A
|
6.0
|
1
|
50
|
0.05
|
4.0
|
4
|
LVA68A
|
6.8
|
1
|
50
|
0.05
|
5.0
|
4
|
LVA75A
|
7.5
|
1
|
100
|
0.01
|
6.0
|
4
|
LVA82A
|
8.2
|
1
|
100
|
0.01
|
6.5
|
4
|
LVA91A
|
9.1
|
1
|
100
|
0.01
|
8.0
|
4
|
LVA100A
|
10.0
|
1
|
100
|
0.01
|
9.0
|
4
|
Maximum Rating
|
Parameters
|
Value
|
Rating
|
|
Package style
|
CS85 (DO-7)
|
|
|
Forward Voltage
|
@ If = 200 mAdc
|
1.5 Vdc
|
|
Noise Density
|
@ Iz = 250 μAdc
|
4.0μ V /
√Hz
|
|
Power Dissipation
|
@ Ta = 25° C
|
400 mW
|
|
Operating
Temperature
|
|
-65° C to + 175° C
|
|
Storage Temperature
|
|
-65° C to + 200° C
|
|
Voltage Tolerance
|
Standard Device
|
±10%
|
|
Suffix A
|
±5%
|
|
|
Suffix B
|
±2%
|
|
Noise Density measured from 1000 to 3000 Hz.
Sharp Breakdown, Low
Leakage LVA Regulator, 5–9 Volt Range
|
Model
|
Voltage
|
Zener
Impedance 1
|
Reverse Leakage
|
Regulation Factor
|
TC
|
Noise Density
|
TYP
|
TYP
|
µAdc
MAX
|
Vdc
MAX
|
DVz
Vdc
MAX
|
Izh
mAdc
MAX
|
IzL
µAdc
MAX
|
TYP
|
MAX
|
LVA450A
|
5.0
|
700
|
10.0
|
4.00
|
0.40
|
1.0
|
100
|
0.75
|
1
|
LVA453A
|
5.3
|
250
|
5.0
|
4.24
|
0.20
|
1.0
|
100
|
1.33
|
1
|
LVA456A
|
5.6
|
100
|
1.0
|
4.48
|
0.10
|
1.0
|
50
|
1.96
|
1
|
LVA459A
|
5.9
|
100
|
0.5
|
4.72
|
0.10
|
1.0
|
10
|
2.30
|
1
|
LVA462A
|
6.2
|
100
|
0.1
|
4.96
|
0.10
|
1.0
|
10
|
2.67
|
1
|
LVA465A
|
6.5
|
100
|
0.05
|
5.20
|
0.10
|
1.0
|
10
|
3.06
|
1
|
LVA468A
|
6.8
|
100
|
0.01
|
5.44
|
0.10
|
1.0
|
10
|
3.40
|
1
|
LVA471A
|
7.1
|
175
|
0.01
|
5.68
|
0.10
|
1.0
|
10
|
3.76
|
1
|
LVA474A
|
7.4
|
175
|
0.01
|
5.92
|
0.10
|
1.0
|
10
|
4.07
|
1
|
LVA477A
|
7.7
|
175
|
0.01
|
6.16
|
0.10
|
1.0
|
10
|
4.47
|
1
|
LVA480A
|
8.0
|
175
|
0.01
|
6.40
|
0.10
|
1.0
|
10
|
4.80
|
1
|
LVA483A
|
8.3
|
175
|
0.01
|
6.64
|
0.10
|
1.0
|
10
|
5.15
|
1
|
LVA486A
|
8.6
|
175
|
0.01
|
6.88
|
0.10
|
1.0
|
10
|
5.50
|
1
|
LVA489A
|
8.9
|
175
|
0.01
|
7.12
|
0.10
|
1.0
|
10
|
5.87
|
2
|
LVA492A
|
9.2
|
175
|
0.01
|
7.36
|
0.10
|
1.0
|
10
|
6.16
|
2
|
LVA495A
|
9.5
|
175
|
0.01
|
7.60
|
0.10
|
1.0
|
10
|
6.46
|
2
|
LVA498A
|
9.8
|
175
|
0.01
|
7.84
|
0.10
|
1.0
|
10
|
6.86
|
2
|
Test Conditions
|
@ 250 µA
|
@ 250 µAdc
|
IR @ VR
|
|
@ 250 µAdc MV/°C
|
@ 250 μA
|
Maximum Rating
|
Parameters
|
Value
|
Rating
|
|
Package style
|
CS85 (DO-7)
|
|
|
Forward Voltage
|
@ If=200 mAdc
|
1.5Vdc
|
|
Noise Density
|
@ Iz=250 μAdc2
|
1.0 μV / √Hz
|
|
Power Dissipation
|
@ Ta=25° C
|
400 mW
|
|
Operating
Temperature
|
|
-65° C to + 175° C
|
|
Storage Temperature
|
|
-65° C to + 200° C
|
|
Voltage Tolerance:
|
Standard Device
|
+0.20 Vdc
|
Notes:
- Impedance measured with 10% 60 Hz AC superimposed on Izt.
- Noise Density on devices LVA489 to LVA498 increases to 2.0 max. Noise Density
measured from 1000 to 3000 Hz.
|
| |
|
