JIEJIE MICROELECTRONICS CO. , Ltd
TEL：+86-513-83639777 - 1 / 3- http://www.jjwdz.com
Zener Diodes 1N4745A Rev.1.0
FEATURE
Silicon power zener diodes.
Low zener impedance.
Zener and surge current specification
For use in stabilizing and clamping circuits
with high power rating.
ABSOLUTEMAXIMUMRATINGSANDTHERMALCHARACTERISTICS
Parameter Symbol Max Value Unit
Total power dissipation @T
L
=75℃ P
D
1000 mW
Junction temperature T
J
150 ℃
Storage temperature range T
S
-55 to +150 ℃
Operating temperature range T
op
-55 to +150 ℃
ELECTRICALCHARACTERISTICS(T
A
=25℃)
Symbol Parameter
V
Z
Reverse zener voltage at I
zt
I
zt
Reverse current
I
R
Reverse leakage current at V
R
V
R
Reverse voltage
I
F
Forward current
V
F
Forward voltage at I
F
DO-41
Symbol
Zener voltage regulator
1N4745A JieJie Microelectronics CO. , Ltd
TEL：+86-513-83639777 - 2 / 3- http://www.jjwdz.com
ELECTRICALCHARACTERISTICS (T
A
=25℃ unless otherwise noted)
Maximum V
F
=1.2V at I
F
=200mA
Type
number
Zener voltage range at I
zt
Maximum zener
impedance
Maximum
reverse leakage
current
Marking
code
Nom
(Volts)
Min
(Volts)
Max
(Volts)
I
zt
(mA)
Z
zt
(Ω)
Z
zk
(Ω)
I
zk
(mA)
I
R
(μA)
V
R
(Volts)
1N4745A 16 15.2 16.8 15.5 16.0 700 0.25 1 12.2 1N4745A
PACK AGEMECHANICALDATA
AB
A
C
D
DO-41
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 25.40 - 1.000 -
B 4.90 5.30 0.193 0.209
C 0.69 0.89 0.027 0.035
D 2.40 2.80 0.095 0.110
TAPE ANDBOXSPECIFICATION‐DO‐41
Z
W
L
B
C
A
D
L1L2
E
F
Dimensions
Millimeters Inches
Ref.
A
B
C
53.0±1.5
6.0±0.5
F
│L1-L2│
W
255±5.0
5.0±0.5
L
145±5.0
Z
2.087±0.059
0.236±0.020
0.197±0.020
1.2(MAX)
D
E
0.047(MAX)
0.8(MAX) 0.031(MAX)
1.5(MAX) 0.059(MAX)
1.0(MAX) 0.039(MAX)
80±5.0
3.150±0.197
10.039±0.197
5.709±0.197
Part No.
UNIT WEIGHT
(g/PCS) typ.
PER BOX
(PCS)
PER CARTON
(PCS)
DESCRIPTION
1N4745A 0.28 5,000 50,000 Box