1N4728A データシートの表示（PDF） - Yea Shin Technology Co., Ltd
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1N4728A Datasheet PDF : 6 Pages
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ELECTRICAL CHARACTERISTICS (TA = 25ºC unless
otherwise noted. VF = 1.2 V Max @ IF = 200mA for all types)
Symbol
Parameter
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Zener Current
ZZT
Maximum Zener Impedance @ IZT
IZk
Reverse Zener Current
ZZk
Maximum Zener Impedance @ IZk
IR
Reverse Leakage Current @ VR
VR
Reverse Voltage
IF
Forward Current
VF
Forward Voltage @ IF
Ir
Surge Current @ TA = 25ºC
1N4728A~1N4764A
ELECTRICAL CHARACTERISTICS (TA = 25ºC unless otherwise noted, VF = 1.2 V Max @ IF = 200mA for all types)
Device
(Note 2.)
Device
Marking
Zener Voltage (Note 3 & 4.)
VZ (Volts)
@ IZT
Min
Nom Max (mA)
Zener Impedance (Note 5.)
ZZT @ IZT
ZZK @ IZK
(Ω)
(Ω) (mA)
Leakage Current
IR @ VR
(µA Max) (Volts)
Ir
(Note 6.)
(mA)
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
3.135
3.42
3.705
4.085
4.465
4.845
5.32
5.89
6.46
7.125
7.79
8.645
9.5
3.3 3.465 76
3.6
3.78
69
3.9 4.095 64
4.3 4.515 58
4.7 4.935 53
5.1 5.355 49
5.6
5.88 45
6.2
6.51 41
6.8
7.14 37
7.5 7.875 34
8.2
8.61
31
9.1 9.555 28
10
10.5 25
10
400
1
100
1
1380
10
400
1
100
1
1260
9
400
1
50
1
1190
9
400
1
10
1
1070
8
500
1
10
1
970
7
550
1
10
1
890
5
600
1
10
2
810
2
700
1
10
3
730
3.5
700
1
10
4
660
4
700 0.5
10
5
605
4.5
700 0.5
10
6
550
5
700 0.5
10
7
500
7
700 0.25
10
7.6
454
1N4741A 1N4741A
1N4742A 1N4742A
10.45
11.4
11
11.55 23
12
12.6 21
8
700 0.25
5
9
700 0.25
5
8.4
414
9.1
380
2. TOLERANCE AND TYPE NUMBER DESIGNATION (VZ)
The type numbers listed have a standard tolerance on the nominal zener voltage of ±5%.
3. SPECIALS AVAILABLE INCLUDE
Nominal zener voltages between the voltages shown and tighter voltage tolerances. For detailed information on price,
availability and delivery, contact your nearest YEASHIN representative.
4. ZENER VOLTAGE (VZ) MEASUREMENT
Nominal zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30°C
±1°C and 3/8” lead length.
5. ZENER IMPEDANCE (ZZ) DERIVATION
The zener impedance is derived from the 60 cycle AC voltage, which results when an AC current having an RMS value
equal to 10% of the DC zener current (IZT or IZK) is superimposed on IZT or IZK.
6. SURGE CURRENT (Ir) NON-REPETITIVE
The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of ½ square
wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT per JEDEC registration;
however, actual device capability is as described in figure 5 of the General Data DO-41 Glass.
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REV.03 20121011
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