BF245A ON Semiconductor, BF245A Datasheet - Page 2
![no-image](/images/manufacturer_photos/0/4/495/on_semiconductor_sml.jpg)
BF245A
Manufacturer Part Number
BF245A
Description
TRANS JFET RF SS N-CH 30V TO-92
Manufacturer
ON Semiconductor
Datasheet
1.BF245A.pdf
(8 pages)
Specifications of BF245A
Transistor Type
N-Channel JFET
Voltage - Rated
30V
Current Rating
100mA
Package / Case
TO-92-3 (Standard Body), TO-226
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Frequency
-
Gain
-
Noise Figure
-
Current - Test
-
Voltage - Test
-
Other names
BF245AOS
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
BF245A
Manufacturer:
Fairchild Semiconductor
Quantity:
33 736
Company:
Part Number:
BF245A
Manufacturer:
FAIRCHILD
Quantity:
63 000
Company:
Part Number:
BF245A
Manufacturer:
FSC/PHI
Quantity:
15 000
Company:
Part Number:
BF245A
Manufacturer:
ABOV
Quantity:
1 000
Part Number:
BF245A
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Part Number:
BF245A/B/C
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
3. The frequency at which g fs is 0.7 of its value at 1 kHz.
ELECTRICAL CHARACTERISTICS
SMALL–SIGNAL CHARACTERISTICS
Forward Transfer Admittance
Output Admittance
Forward Transfer Admittance
Reverse Transfer Admittance
Input Capacitance
Reverse Transfer Capacitance
Output Capacitance
Cut–off Frequency (3)
Figure 3. Forward Transadmittance (y fs )
Figure 1. Input Admittance (y is )
Characteristic
(V DS = 20 Vdc, –V GS = 1.0 Vdc, f = 1.0 MHz)
(V DS = 20 Vdc, –V GS = 1.0 Vdc, f = 1.0 MHz)
(T A = 25 C unless otherwise noted) (Continued)
COMMON SOURCE CHARACTERISTICS
(V DS = 15 Vdc, V GS = 0, f = 200 MHz)
(V DS = 15 Vdc, V GS = 0, f = 200 MHz)
(V DS = 15 Vdc, V GS = 0, f = 1.0 kHz)
(V DS = 15 Vdc, V GS = 0, f = 1.0 kHz)
(V DS = 20 Vdc, –V GS = 1.0 Vdc)
(V DS = 15 Vdc, T channel = 25 C)
ADMITTANCE PARAMETERS
BF245A BF245B
(V DS = 15 Vdc, V GS = 0)
http://onsemi.com
2
Figure 2. Reverse Transfer Admittance (y rs )
Symbol
Figure 4. Output Admittance (y os )
F (Yfs)
C oss
C rss
C iss
Y os
Y fs
Y fs
Y rs
Min
3.0
—
—
—
—
—
—
—
Typ
700
5.6
1.0
3.0
0.7
0.9
—
40
Max
6.5
—
—
—
—
—
—
—
mmhos
mmhos
mmhos
mmhos
MHz
Unit
pF
pF
pF