Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

BZX55C4V7RL Fiches technique(PDF) 5 Page - ON Semiconductor

No de pièce BZX55C4V7RL
Description  Hermetically Sealed Glass Zener Voltage Regulators
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

BZX55C4V7RL Fiches technique(HTML) 5 Page - ON Semiconductor

  BZX55C4V7RL Datasheet HTML 1Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 2Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 3Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 4Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 5Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 6Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 7Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 8Page - ON Semiconductor BZX55C4V7RL Datasheet HTML 9Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 10 page
background image
BZX55C2V4RL Series
http://onsemi.com
5
APPLICATION NOTE — ZENER VOLTAGE
Since the actual voltage available from a given zener
diode is temperature dependent, it is necessary to determine
junction temperature under any set of operating conditions
in order to calculate its value. The following procedure is
recommended:
Lead Temperature, TL, should be determined from:
TL = θLAPD + TA.
θLA is the lead-to-ambient thermal resistance (°C/W) and PD
is the power dissipation. The value for θLA will vary and
depends on the device mounting method. θLA is generally 30
to 40°C/W for the various clips and tie points in common use
and for printed circuit board wiring.
The temperature of the lead can also be measured using a
thermocouple placed on the lead as close as possible to the
tie point. The thermal mass connected to the tie point is
normally large enough so that it will not significantly
respond to heat surges generated in the diode as a result of
pulsed operation once steady-state conditions are achieved.
Using the measured value of TL, the junction temperature
may be determined by:
TJ = TL + ΔTJL.
ΔTJL is the increase in junction temperature above the lead
temperature and may be found from Figure 2 for dc power:
ΔTJL = θJLPD.
For worst-case design, using expected limits of IZ, limits
of PD and the extremes of TJ(ΔTJ) may be estimated.
Changes in voltage, VZ, can then be found from:
ΔV = θVZTJ.
θVZ, the zener voltage temperature coefficient, is found
from Figures 4 and 5.
Under high power-pulse operation, the zener voltage will
vary with time and may also be affected significantly by the
zener resistance. For best regulation, keep current
excursions as low as possible.
Surge limitations are given in Figure 7. They are lower
than would be expected by considering only junction
temperature, as current crowding effects cause temperatures
to be extremely high in small spots, resulting in device
degradation should the limits of Figure 7 be exceeded.
LL
500
400
300
200
100
0
0
0.2
0.4
0.6
0.8
1
2.4−60V
62−200V
L, LEAD LENGTH TO HEAT SINK (INCH)
Figure 2. Typical Thermal Resistance
TYPICAL LEAKAGE CURRENT
AT 80% OF NOMINAL
BREAKDOWN VOLTAGE
+25°C
+125°C
1000
7000
5000
2000
1000
700
500
200
100
70
50
20
10
7
5
2
1
0.7
0.5
0.2
0.1
0.07
0.05
0.02
0.01
0.007
0.005
0.002
0.001
3
4
5
6
7
8
9
10
11
121314 15
VZ, NOMINAL ZENER VOLTAGE (VOLTS)
Figure 3. Typical Leakage Current


Numéro de pièce similaire - BZX55C4V7RL

FabricantNo de pièceFiches techniqueDescription
logo
Motorola, Inc
BZX55C4V7RL MOTOROLA-BZX55C4V7RL Datasheet
424Kb / 42P
   500 mW DO-35 Glass Zener Voltage Regulator Diodes
More results

Description similaire - BZX55C4V7RL

FabricantNo de pièceFiches techniqueDescription
logo
SeCoS Halbleitertechnol...
1N47XXAG SECOS-1N47XXAG_15 Datasheet
218Kb / 2P
   Hermetically Sealed Glass Zener Voltage Regulators
logo
Taiwan Semiconductor Co...
ZM4728A TSC-ZM4728A_14 Datasheet
220Kb / 4P
   Hermetically Sealed Glass Zener Voltage Regulators
logo
SeCoS Halbleitertechnol...
VLZ SECOS-VLZ_15 Datasheet
416Kb / 5P
   Hermetically Sealed Glass Zener Voltage Regulators
VLZ SECOS-VLZ Datasheet
422Kb / 5P
   Hermetically Sealed Glass Zener Voltage Regulators
logo
Taiwan Semiconductor Co...
LLZ2V4 TSC-LLZ2V4 Datasheet
228Kb / 4P
   Hermetically Sealed Glass Zener Voltage Regulators
LLZ5221B TSC-LLZ5221B_15 Datasheet
230Kb / 4P
   Hermetically Sealed Glass Zener Voltage Regulators
logo
SEC Electronics Inc.
1N47XXAG SECELECTRONICS-1N47XXAG Datasheet
218Kb / 2P
   Hermetically Sealed Glass Zener Voltage Regulators
logo
Taiwan Semiconductor Co...
LLZ5221B TSC-LLZ5221B Datasheet
129Kb / 3P
   500mW Hermetically Sealed Glass Zener Voltage Regulators
logo
Shenzhen Luguang Electr...
BZX55C2V0 LUGUANG-BZX55C2V0 Datasheet
78Kb / 2P
   500mW Hermetically Sealed Glass Zener Voltage Regulators
BZX55C LUGUANG-BZX55C Datasheet
81Kb / 2P
   500mW Hermetically Sealed Glass Zener Voltage Regulators
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com