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Datasheet 1N4745A PDF ( 特性, スペック, ピン接続図 )

部品番号 1N4745A
部品説明 1.0W ZENER DIODE
メーカ Diodes
ロゴ Diodes ロゴ 
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1N4745A Datasheet, 1N4745A PDF,ピン配置, 機能
PART OBSOLETE NO ALTERNATE
PART
1N4728A - 1N4761A
1.0W ZENER DIODE
Features
1.0 Watt Power Dissipation
3.3V - 75V Nominal Zener Voltage
Standard VZ Tolerance is 5%
Lead Free Finish, RoHS Compliant (Note 2)
Mechanical Data
Case: DO-41
Case Material: Glass. UL Flammability
Classification Rating 94V-0
Terminals: Finish Sn96.5Ag3.5. Solderable
per MIL-STD-202, Method 208
Polarity: Cathode Band
Marking: Type Number
Weight: 0.35 grams (approximate)
DO-41 Glass
Dim Min Max
A 26.0 
B  4.10
C  0.86
D  2.60
All Dimensions in mm
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic
Zener Current (see Table page 2)
Power Dissipation
Derate Above 50°C (Note 1)
Thermal Resistance - Junction to Ambient Air
Forward Voltage @ IF = 200 mA
Operating and Storage Temperature Range
Symbol
IZ
Pd
RJA
VF
Tj, TSTG
Value
Pd / VZ
1.0
6.67
175
1.2
-65 to + 175
Notes:
1. Valid provided that leads are kept at TL @ 50°C with lead length = 9.5mm (3/8”) from case.
2. EC Directive 2002/95/EC (RHS) revision 13.2.2003. Glass and high temperature solder exemptions applied where applicable,
see EU Directive Annex Notes 5 and 7.
Unit
mA
W
mW/°C
°C/W
V
°C
DS18007 Rev. 20 - 4
1 of 3
www.diodes.com
1N4728A - 1N4761A
© Diodes Incorporated

1 Page



1N4745A pdf, ピン配列
PART OBSOLETE NO ALTERNATE
PART
1.0 250
0.8 200
0.6 150
0.4 100
0.2
0
0 40 80 120 160 200
TA, AMBIENT TEMPERATURE (°C)
Fig. 1 Power Dissipation vs. Ambient Temperature
1,000
100
10
50
0
0 5 10 15 20 25 30
l, Lead Length (mm)
Fig. 2 Typical Thermal Resistance vs. Lead Length
1,000
100
10
IZ = 1mA
2mA
5mA
10mA
20mA
1
0 10 20 30 40 50 60
VZ, ZENER VOLTAGE (V)
Fig. 3 Typical Total Capacitance vs. Zener Voltage
1
1 10 100
VZ, ZENER VOLTAGE (V)
Fig. 4 Typical Zener Impedance vs. Zener Voltage
Ordering Information (Notes 5 & 6)
Notes:
Device
(Type Number)-A*
(Type Number)-T*
Packaging
DO-41 Glass
DO-41 Glass
Shipping
5K/Ammo Pack
5K/Tape & Reel
5. *Add "-A" or "-T" to the appropriate type number in Electrical Characteristics Table. Example: 6.2V Zener = 1N4735A-A for ammo pack.
6. For packaging details, visit our website at http://www.diodes.com/datasheets/ap02008.pdf
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
DS18007 Rev. 20 - 4
3 of 3
www.diodes.com
1N4728A - 1N4761A
© Diodes Incorporated


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