FFB3946 / FMB3946
FFB3946
E2
B2
C1
TRANSISTOR TYPE
C1 B1 E1
C2 B2 E2
NPN
PNP
FMB3946
C2
E1
C1
SC70-6
Mark: .AB
Dot denotes pin #1
pin #1
C2
B1
E1
B2
SuperSOT
-6
Mark: .002
Dot denotes pin #1
E2
pin #1
B1
NPN & PNP General Purpose Amplifier
This complementary device is designed for use as a general purpose
amplifier and switch The useful dynamic range extends to 100 mA as a
switch and 100 MHz as an amplifier. Sourced from Process 23 and 66.
See FFB3904 (NPN) and FFB3906 (PNP) for characteristics.
Absolute Maximum Ratings*
Symbol
V
CEO
V
CBO
V
EBO
I
C
T
J
, T
stg
Collector-Base Voltage
Emitter-Base Voltage
Collector Current - Continuous
Collector-Emitter Voltage
T
A
= 25°C unless otherwise noted
Parameter
Value
40
40
5.0
200
-55 to +150
Units
V
V
V
mA
°C
4
Operating and Storage Junction Temperature Range
*
These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
NOTES:
1)
These ratings are based on a maximum junction temperature of 150 degrees C.
2)
These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
3)
All voltages (V) and currents (A) are negative polarity for PNP transistors.
Thermal Characteristics
Symbol
P
D
R
θJA
T
A
= 25°C unless otherwise noted
Characteristic
Total Device Dissipation
Derate above 25°C
Thermal Resistance, Junction to Ambient
FFB3946
300
2.4
415
Max
FMB3946
700
5.6
180
Units
mW
mW/°C
°C/W
1999 Fairchild Semiconductor Corporation
FFB3946 / FMB3946
NPN & PNP General Purpose Amplifier
(continued)
Electrical Characteristics
Symbol
Parameter
T
A
= 25°C unless otherwise noted
Test Conditions
Min
Typ
Max Units
OFF CHARACTERISTICS
V
(BR)CEO
V
(BR)CBO
V
(BR)EBO
I
CBO
I
EBO
Collector-Emitter Breakdown Voltage
Collector-Base Breakdown Voltage
Emitter-Base Breakdown Voltage
Collector Cutoff Current
Emitter Cutoff Current
I
C
= 10 mA, I
B
= 0
I
C
= 10
µA,
I
E
= 0
I
E
= 10
µA,
I
C
= 0
V
CB
= 30 V, I
E
= 0
V
EB
= 4.0 V, I
C
= 0
40
40
5.0
50
50
V
V
V
nA
nA
ON CHARACTERISTICS
h
FE
DC Current Gain
I
C
= 100
µA,
V
CE
= 1.0 V
I
C
= 1.0 mA, V
CE
= 1.0 V
I
C
= 10 mA, V
CE
= 1.0 V
I
C
= 50 mA, V
CE
= 1.0 V
I
C
= 100mA, V
CE
= 1.0 V
I
C
= 10 mA, I
B
= 1.0 mA
I
C
= 10 mA, I
B
= 1.0 mA
40
70
100
60
30
300
V
CE(
sat
)
V
BE(
sat
)
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
0.25
0.9
V
V
SMALL SIGNAL CHARACTERISTICS
f
T
C
obo
C
ibo
Current Gain - Bandwidth Product
Output Capacitance
Input Capacitance
I
C
= 10 mA, V
CE
= 20 V,
f = 100 MHz
V
CB
= 5.0 V, f = 100 kHz
V
CB
= 5.0 V, f = 100 kHz
200
4.5
10
MHz
pF
pF
NOTE:
All voltages (V) and currents (A) are negative polarity for PNP transistors.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
Bottomless™
CoolFET™
CROSSVOLT™
DOME™
E
2
CMOS
TM
EnSigna
TM
FACT™
FACT Quiet Series™
FAST
DISCLAIMER
FASTr™
GlobalOptoisolator™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
OPTOLOGIC™
OPTOPLANAR™
PACMAN™
POP™
PowerTrench
QFET™
QS™
QT Optoelectronics™
Quiet Series™
SILENT SWITCHER
SMART START™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SyncFET™
TinyLogic™
UHC™
VCX™
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.
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
2. A critical component is any component of a life
support device or system whose failure to perform can
systems which, (a) are intended for surgical implant into
be reasonably expected to cause the failure of the life
the body, or (b) support or sustain life, or (c) whose
support device or system, or to affect its safety or
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
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, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. G
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