CHENMKO ENTERPRISE CO.,LTD
AXIAL LEAD
SILICON PLANAR POWER ZENER DIODES
VOLTAGE RANGE 2.4V TO 51V
ELECTRICAL CHARACTERISTICS ( At TA = 25
o
C unless otherwise noted )
NOTES :
2001-6
Max. Instantaneous Forward Voltage at IF= 10mA
CHARACTERISTICS SYMBOL UNITS
300
1.0
Volts
o
C/WThermal Resistance Junction to Ambient
MAXIMUM RATINGES ( At TA = 25
o
C unless otherwise noted )
RATINGS
Zener Current ( see Table "Characteristics" )
Max. Steady State Power Dissipation @TL=75
o
C,Lead Length=3/8"
Max. Operating Temperature Range
Storage Temperature Range
SYMBOL
-
PD
TJ
TSTG
R JA
VF
VALUE
MAX.
-
-
TYP.
-
-
MIN.
UNITS
-
mW
-
500
1.The numbers listd have a standaerd tolerance on the normal zener voltage of +5%.
2. The zener impedance is derived from 1KHz AC voltage, which results when an AC current having an RMS value equal to 10%
of DC zener current (IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee
on the breakdown curve to eliminate unstable units.
3. Valid provided that electrodes at distance of 8mm from case are kept ambient temperature.
4. Measured under thermal equilibrium and DC test conditions.
5. The rating listd in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave
or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, IZT.
6. Measured at IZT= 2mA and IZK= 0.5mA.
FEATURE
* High temperature soldering type.
* ESD rating of class 3(>16 kV) per human body model.
* Silicon planar zener diodes.
* Silcon-oxide passivated junction.
* Low temperature coefficient voltage
MECHANICAL
* Axial-lead hermetically sealed package.
* DO-35 Packaging.
* Cathode indicated by polarity band.
* Mounting position: Any.
* Weight: Approx. 0.13g.
DO-35
DO-35
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified.
+200
-65 to +200
o
C
o
C
BZX79C 2V4PT
THRU
BZX79C 51PT
MAX.
.165
(
4.2
)
1.02
(
26.0
)
MIN.
1.02
(
26.0
)
MIN.
.079
(
2.0
)
MAX.
DIA.
.022
(
0.56
)
.018
(
0.46
)
DIA.
Dimensions in inches and (millimeters)