RATING AND CHARACTERISTICS CURVES ( 1N4728A-1N4758A )
R
QJA
, THERMAL RESISTANCE JUNCTION TO AMBIENT (
O
C/W)
1.0
P
d
,TOTAL POWER DISSIPATION (W)
0.8
0.6
0.4
0.2
0
250
200
150
100
50
0
0
40
80
120
160
200
0
5
10
15
20
25
30
TA, AMBIENT TEMPERATURE
I, LEAD LENGTH(mm)
Figure1 Power Dissipation vs Ambient Temperature
f = 1MHz
O
T
A
= 25 C
Figure2 Typical Thermal Resistance vs Lead Length
DIFFERENTIAL ZENER IMPEDANCE (W)
1000
I
Z
= 1mA
2mA
5mA
10mA
20mA
1000
C
J
,DIODE CAPACITANCE (pF)
100
V
R
= 0 V
V
R
V
R
V
R
V
R
=
=
=
=
2V
5V
20 V
30 V
100
10
10
1
0
10
20
30
40
50
60
1
0
10
VZ, ZENER VOLTAGE(V)
100
VZ, ZENER VOLTAGE(V)
Figure3 Junction Capacitance vs Zener Voltage
1000
500
IF,FORWARD CURRENT (mA)
200
100
50
20
10
5
150
O
C
2
1
0.4
0.5
0.6
0.7
75 C
O
Figure4 Typical Zener Impedance vs Zener Voltage
MINIMUM
MAXIMUM
25 C
O
0C
O
0.8
0.9
1
1.1
VF, FORWARD VOLTAGE (V)
Figure5 Typical Forward Characteristics
DISCLAIMER NOTICE
Rectron Inc reserves the right to make changes without notice to any product
specification herein, to make corrections, modifications, enhancements or other
changes. Rectron Inc or anyone on its behalf assumes no responsibility or liabi-
lity for any errors or inaccuracies. Data sheet specifications and its information
contained are intended to provide a product description only. "Typical" paramet-
ers which may be included on RECTRON data sheets and/ or specifications ca-
n and do vary in different applications and actual performance may vary over ti-
me. Rectron Inc does not assume any liability arising out of the application or
use of any product or circuit.
Rectron products are not designed, intended or authorized for use in medical,
life-saving implant or other applications intended for life-sustaining or other rela-
ted applications where a failure or malfunction of component or circuitry may di-
rectly or indirectly cause injury or threaten a life without expressed written appr-
oval of Rectron Inc. Customers using or selling Rectron components for use in
such applications do so at their own risk and shall agree to fully indemnify Rect-
ron Inc and its subsidiaries harmless against all claims, damages and expendit-
ures.
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