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PDF BF979 Data sheet ( Hoja de datos )
| Número de pieza | BF979 | |
| Descripción | Silicon PNP Planar RF Transistor | |
| Fabricantes | Vishay Telefunken | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BF979 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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Silicon PNP Planar RF Transistor
BF979
Vishay Telefunken
Electrostatic sensitive device.
Observe precautions for handling.
Applications
UHF/VHF uncontrolled prestages with low noise and
low modulation.
Features
D High cross modulation performance
D High power gain
D Low noise
D High reverse attenuation
3
2
94 9308
1
BF979 Marking: BF979
Plastic case (TO 50)
1 = Collector, 2 = Base, 3 = Emitter
13623
Absolute Maximum Ratings
Tamb = 25_C, unless otherwise specified
Parameter
Test Conditions
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Total power dissipation
Junction temperature
Tamb ≤ 60 °C
Storage temperature range
Symbol
–VCBO
–VCEO
–VEBO
–IC
Ptot
Tj
Tstg
Value
20
20
3
50
300
150
–55 to +150
Unit
V
V
V
mA
mW
°C
°C
Maximum Thermal Resistance
Tamb = 25_C, unless otherwise specified
Parameter
Test Conditions
Junction ambient on glass fibre printed board (40 x 25 x 1.5) mm3
plated with 35mm Cu
Symbol
RthJA
Value
300
Unit
K/W
Document Number 85006
Rev. 3, 20-Jan-99
www.vishay.de • FaxBack +1-408-970-5600
1 (5)
1 page  
Ozone Depleting Substances Policy Statement
BF979
Vishay Telefunken
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems with respect to their impact on the health and safety of our employees and the public, as well as their
impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances ( ODSs ).
The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of
ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency ( EPA ) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer application
by the customer. Should the buyer use Vishay-Telefunken products for any unintended or unauthorized application, the
buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out of, directly or
indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
Document Number 85006
Rev. 3, 20-Jan-99
www.vishay.de • FaxBack +1-408-970-5600
5 (5)
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet BF979.PDF ] | |
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