1N4731

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FEATURES
. Silicon planar power zener diodes
For use in stabilizing and clipping circuits with high power rating.. Standaards Zener voltage toerance is 10%
Add suffix"A" for 5% tolerance Other tolerance available upon request
MECHANICAL DATA
. Case: DO-41 glass case .weight: Approx. 0.35 gram
ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES)(T A =25
P tot
mW
Junction temperature
T J
1)Valid provided that a distance of 8mm from case are kept at ambient temperature
ELECTRCAL CHARACTERISTICS (T A =25
/W
Forward voltage at IF=200mA
V F
1.2V
1) Valid provided that a distance at 8mm from case are kept at ambient temperature
1 1)
175-65 to +175
1N4728…1N4764 SILICON PLANAR ZENER DIODES
Nominal Test Surge Maximum Zener
Current
current regulator
Type
Voltage 3)
Current 2)
at
at at at T A =0.25
I ZT I ZT
Z ZK
I ZK
at V R
IR
IZM V Z V
I ZT mA
Z ZT
mA I R A
V
mA
mA
1N4728 3.37610 1.013802761N4729 3.66910 1.012602521N4730 3.964950
1.011902341N4731 4.3589 1.010702171N4732 4.7538500 1.09701931N4733 5.1497550 1.08901781N4734 5.6455600
2.08101621N4735 6.2412
3.07301461N4736 6.837 3.5
4.06601331N47377.534 4.0
5.06051211N47388.231 4.5
6.05501101N47399.128 5.0
7.05001001N4740102577.6454911N474111238
8.4414831N474212219
9.1380761N47431319109.9344691N474415171411.4304611N47451615.51612.2285571N474618142013.7250501N47472012.52215.2225451N47482211.52316.7205411N47492410.52518.2190381N4750279.53520.6170341N4751308.54022.8
150301N4752337.54525.1135271N4753367.05027.4125251N475439 6.56029.7115231N475543 6.07032.7110221N475647 5.58035.895191N475751 5.09538.890181N475856 4.511042.680161N475962 4.012547.170141N476068 3.715051.765131N476175 3.317556.060121N476282 3.020062.255111N476391 2.825069.250101N4764
100
2.5
350
76.0
45
9
Notes:1) The Zener impedance is derived from the 1KHz AC voltage which results when an AC current having an RMS calue equal to 10% of the 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 and to eliminate unstable units.
2)Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature 3)Measured under thermal equilibriun and DC test conditions.
10010
5
Maximum Zener Impedance 1)
Maximum
reverse leakage current
150020003000 1.0
5.0
0.25
400
7007501000
RATINGS AND CHARACTERISTIC CURVES 1N4728 THRI 1N4764
Admissible power dissipation versus ambient temperature
(Valid provided that leads at a distance of 10mm from case
are kept at ambient temperature)。