BF247A — N-Channel Amplifier
September 2007
BF247A
N-Channel Amplifier
• This device is designed primarily for electronic switching applications such as low on resistance analog switching.
• Sourced from process 51.
TO-92
1
1. Gate 2. Source 3. Drain
Absolute Maximum Ratings*
T
a
=25°C unless otherwise noted
Symbol
V
DG
V
GS
I
GF
T
J
, T
STG
Drain-Gate Voltage
Gate-Source Voltage
Forward Gate Current
Operating and Storage Junction Temperature Range
Parameter
Value
25
-25
10
-55 ~ +150
Units
V
V
mA
°C
* This ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
NOTES:
1) These rating are based on a maximum junction temperature of 150 degrees C.
2) These are steady limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Thermal Characteristics
Symbol
P
D
R
θJC
R
θJA
T
a
=25°C unless otherwise noted
Parameter
Total Device Dissipation
Derate above 25°C
Thermal Resistance, Junction to Case
Thermal Resistance, Junction to Ambient
Max.
350
2.8
125
357
Units
mW
mW/°C
°C/W
°C/W
Electrical Characteristics*
T
a
=25°C unless otherwise noted
Symbol
Off Characteristics
V
(BR)GSS
I
GSS
V
GS(off)
V
GS
Gate-Source Breakdown Voltage
Gate Reverse Current
Gate-Source Cut-off Voltage
Gate-Source Forward Voltage
I
G
= 1.0μA, V
DS
= 0
V
GS
= 15V, V
DS
= 0
V
DS
= 15V, I
D
= 100nA
V
DS
= 15V, I
D
= 0.2mA
-0.6
-1.5
-25
-5.0
-14.5
-4.0
V
nA
V
V
Parameter
Test Condition
Min.
Max.
Units
On Characteristics
*I
DSS
Zero-Gate Voltage Drain Current *
V
DS
= 15V, V
GS
= 0
30
80
mA
Small Signal Characteristics
g
fs
Forward Transferconductance
V
DS
= 15V, V
GS
= 0V
8
/Ω
* Pulse Test: Pulse Width
≤
300μs, Duty Cycle
=
2%
© 2007 Fairchild Semiconductor Corporation
BF247A Rev. 1.0.0
1
www.fairchildsemi.com
BF247A
BF247A N-Channel Amplifier
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DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS
HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF
THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE
UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF
FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE
PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1.
Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result
in significant injury to the user.
2.
A critical component is any component of a life support
device or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Advance Information
Product Status
Formative or In Design
Definition
This datasheet contains the design specifications for product development.
Specifications may change in any manner without notice.
This datasheet contains preliminary data; supplementary data will be pub-
lished at a later date. Fairchild Semiconductor reserves the right to make
changes at any time without notice to improve design.
This datasheet contains final specifications. Fairchild Semiconductor reserves
the right to make changes at any time without notice to improve design.
This datasheet contains specifications on a product that has been discontin-
ued by Fairchild semiconductor. The datasheet is printed for reference infor-
mation only.
Rev. I30
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
© 2007 Fairchild Semiconductor Corporation
BF247A Rev. 1.0.0
2
www.fairchildsemi.com
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