DESCRIPTION
The BFY90 is a low noise transistor intended for
use in broad and narrow-band amplifiers up to
1GHz.
ABSOLUTE MAXIMUM RATINGS (T
A
= 25°C unless otherwise stated)
BFY90
Prelim. 12/99
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk
Website: http://www.semelab.co.uk
SILICON PLANAR EPITAXIAL
NPN TRANSISTOR
V
CBO
Collector – Base Voltage
V
CER
Collector – Emitter Voltage (R
BE
£50W
)
V
CEO
Collector – Emitter Voltage
V
EBO
Emitter – Base Voltage
I
C(AV)
Average Collector Current
I
CM
Peak Collector Current (f³1MHz)
P
tot
Power Dissipation at T
amb
=
25°C
T
j
Storage Temperature
T
stg,
Junction Temperature
30V
30V
15V
2.5v
25mA
50mA
200mW°C
200°C
–65 to +200°C
MECHANICAL DATA
Dimensions in mm (inches)
0.48 (0.019)
0.41 (0.016)
dia.
4.95 (0.195)
4.52 (0.178)
4.95 (0.195)
4.52 (0.178)
5.33 (0.210)
4.32 (0.170)
12.7 (0.500)
min.
1
2
3
4
2.54 (0.100)
Nom.
TO72
Pin 1 – Emitter
Pin 2 –Base
Pin 3 – Collector
Pin 4 – Connected to Case
Parameter Test Conditions Min. Typ. Max. Unit
nA
V
—
GHz
pF
pF
dB
dB
mW
10
15
30
0.75
25 150
20 125
1
1.3
1.5
0.8
4
3.5
5
5
21
10
BFY90
Prelim. 12/99
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk
Website: http://www.semelab.co.uk
I
CBO
V
(BR)CEO*
V
(BR)CER*
V
CEK
h
21E
f
T
C
22b(1)
C
12e(2)
NF
G
p
P
O(2)
Collector Cut Off Current
Collector Emitter Breakdown Voltage
Collector Emitter Breakdown Voltage
Collector Emitter Knee Voltage
Static Forward Current Transfer
Ratio
Transition Frequency
Output Capacitance
Open-Circuit Reverse Transfer
Capacitance
Noise Figure
Power Gain
Output Power
V
CB
= 15V IE= 0
IC= 10mA IB= 0
IC= 10mA R
BE
£50W
IC= 10mA
VCE= 1V IC= 2mA
VCE= 1V IC= 25mA
VCE= 5V IC= 2mA
f = 500MHz
VCE= 5V IC= 25mA
f = 500MHz
VCB= 10V IE= 0.
f = 1MHz
VCE= 5V IC= 0
f = 1MHz
VCE= 5V IC= 2mA
f = 100kHz R
G optimum
VCE= 5V IC= 2mA
f = 200MHz R
G optimum
VCE= 5V IC= 2mA
f = 500MHz RG = 50
W
VCE= 5V IC= 2mA
f = 800MHz R
G optimum
VCE= 10V IC= 14mA
f = 200MHz
VCE= 10V IC= 14mA
f1= 202MHz f2= 205MHz
Output SWR £2
TOS sortie £2
dIM* = - 30dB at 2 f2- f1=
208MHz
ELECTRICAL CHARACTERISTICS (T
A
= 25°C unless otherwise stated)
* Pulse test tp= 300ms ,
d £
2%
(1) Shield Lead (case) not connected (2) Shield Lead (case) grounded
* Intermodulation Distortion
R
th(j-a)
R
th(j-c)
£
0.875 Max
£
0.575 Max
Junction-ambient thermal resistance
Junction-case thermal resistance
°C/W
°C/W
THERMAL DATA
DYNAMIC CHARACTERISTICS