PHILIPS BF901

DISCRETE SEMICONDUCTORS
DATA SHEET
BF901; BF901R
Silicon n-channel dual gate
MOS-FETs
Product specification
File under Discrete Semiconductors, SC07
November 1992
Philips Semiconductors
Product specification
Silicon n-channel dual gate MOS-FETs
FEATURES
BF901; BF901R
QUICK REFERENCE DATA
• Intended for low voltage operation
SYMBOL
PARAMETER
TYP.
MAX.
UNIT
• Short channel transistor with high
ratio  Yfs :Cis
VDS
drain-source voltage
−
12
V
• Low noise gain-controlled amplifier
to 1 GHz
ID
drain current
−
30
mA
Ptot
total power dissipation
−
200
mW
• BF901R has reverse pinning.
DESCRIPTION
Enhancement type field-effect
transistors in plastic microminiature
SOT143 and SOT143R envelopes,
with source and substrate
interconnected. They are intended for
UHF and VHF applications, such as
television tuners and professional
communications equipment
especially suited for low voltage
operation. These MOS-FET tetrodes
are protected against excessive input
voltage surges by integrated
back-to-back diodes between gates
and source.
Tj
junction temperature
−
150
°C
 Yfs 
transfer admittance
28
35
mS
Cig1-s
input capacitance at gate 1
2.35
2.75
pF
Crs
feedback capacitance
25
−
fF
F
noise figure at 800 MHz
1.7
−
dB
d
handbook, halfpage
4
3
g2
g1
1
2
s,b
Top view
MAM039
PINNING
PIN
DESCRIPTION
1
source
2
drain
3
gate 2
4
gate 1
Marking code: MO1.
Fig.1 Simplified outline (SOT143) and symbol.
d
handbook, halfpage
3
4
g2
g1
2
1
s,b
Top view
MAM040
Marking code: MO2.
Fig.2 Simplified outline (SOT143R) and symbol.
November 1992
2
Philips Semiconductors
Product specification
Silicon n-channel dual gate MOS-FETs
BF901; BF901R
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VDS
drain-source voltage
−
12
V
VD-G2
drain-gate 2 voltage
−
6
V
ID
DC drain current
−
30
mA
±IG1-S
gate 1-source current
−
10
mA
±IG2-S
gate 2-source current
−
10
mA
Ptot
total power dissipation
BF901
up to Tamb = 50 °C (note 1)
−
200
mW
BF901R
up to Tamb = 40 °C (note 1)
−
200
mW
Tstg
storage temperature
−65
150
°C
Tj
junction temperature
−
150
°C
THERMAL RESISTANCE
SYMBOL
Rth j-a
PARAMETER
THERMAL RESISTANCE
thermal resistance from junction to ambient (note 1)
BF901
500 K/W
BF901R
550 K/W
Note
1. Device mounted on an FR4 printboard.
MBB756
240
handbook, halfpage
P tot
(mW)
BF901R
BF901
120
0
0
50
100
150
200
Tamb (°C)
Fig.3 Power derating curve.
November 1992
3
Philips Semiconductors
Product specification
Silicon n-channel dual gate MOS-FETs
BF901; BF901R
STATIC CHARACTERISTICS
Tj = 25 °C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
±IG1-SS
gate 1 cut-off current
±VG1-S = 5 V; VG2-S = VDS = 0
−
50
nA
±IG2-SS
gate 2 cut-off current
±VG2-S = 5 V; VG1-S = VDS = 0
−
50
nA
±V(BR)G1-SS
gate 1-source breakdown voltage
±IG1-SS = 10 mA; VG2-S = VDS = 0
6
20
V
±V(BR)G2-SS
gate 2-source breakdown voltage
±IG2-SS = 10 mA; VG1-S = VDS = 0
6
20
V
VG1-S(th)
gate 1-source threshold voltage
ID = 20 µA; VDS = 8 V; VG2-S = 4 V
0
0.7
V
VG2-S(th)
gate 2-source threshold voltage
ID = 20 µA; VDS = 8 V; VG1-S = 0
0.3
1
V
IDSX
drain-source current
VDS = 4 V; VG1-S = 1.1 V; VG2-S = 3.4 V 2
18
mA
DYNAMIC CHARACTERISTICS
Measuring conditions (common source): ID = 14 mA; VDS = 5 V; VG2-S = 4 V; Tamb = 25 °C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
35
 Yfs 
transfer admittance
pulsed; Tj = 25 °C
25
28
mS
Cig1-s
input capacitance at gate 1
f = 1 MHz
−
2.35
2.75
pF
Cig2-s
input capacitance at gate 2
f = 1 MHz
−
1.2
−
pF
Cos
output capacitance
f = 1 MHz
−
1.4
−
pF
Crs
feedback capacitance
f = 1 MHz
−
25
−
fF
F
noise figure
f = 200 MHz; Gs = 2 mS; Bs = Bsopt.
−
0.7
−
dB
f = 800 MHz; Gs = 3.3 mS; Bs = Bsopt.
−
1.7
−
dB
November 1992
4
Philips Semiconductors
Product specification
Silicon n-channel dual gate MOS-FETs
BF901; BF901R
PACKAGE OUTLINE
Plastic surface mounted package; reverse pinning; 4 leads
D
SOT143R
B
E
A
X
y
HE
v M A
e
bp
w M B
3
4
Q
A
A1
c
2
1
Lp
b1
e1
detail X
0
1
2 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
A1
max
bp
b1
c
D
E
e
e1
HE
Lp
Q
v
w
y
mm
1.1
0.9
0.1
0.48
0.38
0.88
0.78
0.15
0.09
3.0
2.8
1.4
1.2
1.9
1.7
2.5
2.1
0.55
0.25
0.45
0.25
0.2
0.1
0.1
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
97-03-10
SOT143R
November 1992
EUROPEAN
PROJECTION
5
Philips Semiconductors
Product specification
Silicon n-channel dual gate MOS-FETs
BF901; BF901R
Plastic surface mounted package; 4 leads
SOT143B
D
B
E
A
X
y
HE
v M A
e
bp
w M B
4
3
Q
A
A1
c
1
2
Lp
b1
e1
detail X
0
1
2 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
A1
max
bp
b1
c
D
E
e
e1
HE
Lp
Q
v
w
y
mm
1.1
0.9
0.1
0.48
0.38
0.88
0.78
0.15
0.09
3.0
2.8
1.4
1.2
1.9
1.7
2.5
2.1
0.45
0.15
0.55
0.45
0.2
0.1
0.1
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
97-02-28
SOT143B
November 1992
EUROPEAN
PROJECTION
6
Philips Semiconductors
Product specification
Silicon n-channel dual gate MOS-FETs
BF901; BF901R
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Short-form specification
The data in this specification is extracted from a full data sheet with the same type
number and title. For detailed information see the relevant data sheet or data handbook.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
November 1992
7