1N4728A - 1N4758A
1 W DO-41 Zener Voltage Regulator
Pb
RoHS
COMPLIANCE
DO-41
Features
Zener Voltage Range 3.3 to 56Volts.
DO-41Package
(JEDEC)
Through-Hole Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction.
All External Surface Are Corrosion Resistant And
Terminals Are Readily Solderable.
Solder Hot Dip Tin (Sn) Lead Finish.
RoHS Compliant
Millimeters
Min
0.72
4.07
25.4
2.04
Max
0.86
5.2
---
2.71
Min
0.028
0.16
1
0.08
Inches
Max
0.034
0.205
---
0.107
Dimension
A
B
Mechanical Data
Cases: Molded plastic
Epoxy: UL 94V-O rate flame retardant
Lead: Pure tin plated, lead free, solderable per
MIL-STD-202, Method 208 guaranteed
Polarity: Color band denotes cathode.
High temperature soldering guaranteed:
260oC/10 seconds
Weight: 0.012 gram
Marking code : 1N47xxA for ± 5% Vz
1N47xxC for ± 2% Vz
C
D
Cathode
Anode
ELECTRICAL SYMBOL
Maximum Ratings and Electrical Characteristics
Rating at 25℃ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Power Dissipation
Thermal Resistance Junction to Lead
Thermal Resistance Junction to Ambient
Operating Temperature Range
Storage Temperature Range
Symbol
P
D
Rthjl
Rthja
T
OPR
T
STG
Value
1.0
53.5
100
-65 to +200
-65 to +200
o
Units
W
C/W
C/W
O
o
C
C
O
Notes: These ratings are limiting values above which the serviceability of the diode may be impaired
Page : 1 of 2
Version : A08
Electrical characteristics ( TA=25
o
C unless otherwise note )
Device
Type
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
Notes :
V
Z
@ I
ZT
(Volts)
Norminal
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
I
ZT
(mA)
Z
ZT
@ I
ZT
(Ω)
Max
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
I
ZK
(mA)
Z
ZK
@ I
ZK
(Ω)
Max
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
I
R
@ V
R
(µA)
Max
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
V
R
(Volts)
1
1
1
1
1
1
2
3
4
5
6
7
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
4.5
Z
).
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
1. Tolerance and Type Number Designation (V
“C” instead of an “A”.
2. Specials available Include
The Type number s listed have a standard tolerance on the nominal zener voltage of ± 5%. Device tolerance of 2% is indicated by a
Nominal zener voltages between the voltages shown and tighter voltage, for detailed information on price, availability and delivery,
contact you nearest Tak Cheong representative.
3. Zener Volatage (V
Z
) Measurement
The zener voltage (V
Z
) is tested under pulse condition. The measured VZ is guaranteed to be within specification with device junction
in thermal equilibrium.
4. Zener Impedance (Z
Z
) Deviation
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.
Page : 2 of 2
Version : A08
嵌入式系统
