MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
RF Transistor
NPN Silicon
COLLECTOR
1
3
BASE
2
EMITTER
BF224
1
2
3
CASE 29–04, STYLE 21
TO–92 (TO–226AA)
MAXIMUM RATINGS
Rating
Collector – Emitter Voltage
Collector – Base Voltage
Emitter – Base Voltage
Collector Current — Continuous
Total Device Dissipation @ TA = 25°C
Derate above 25°C
Total Device Dissipation @ TC = 25°C
Derate above 25°C
Operating and Storage Junction
Temperature Range
Symbol
VCEO
VCBO
VEBO
IC
PD
PD
TJ, Tstg
Value
30
45
4.0
50
350
2.8
1.0
8.0
– 55 to +150
Unit
Vdc
Vdc
Vdc
mAdc
mW
mW/°C
Watts
mW/°C
°C
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Ambient
Thermal Resistance, Junction to Case
Symbol
R
q
JA
R
q
JC
Max
357
125
Unit
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
OFF CHARACTERISTICS
Collector – Emitter Breakdown Voltage
(IC = 1.0 mAdc, IB = 0)
Collector – Base Breakdown Voltage
(IC = 100
m
Adc, IE = 0)
Emitter – Base Breakdown Voltage
(IE = 100
m
Adc, IC = 0)
Collector Cutoff Current
(VCB = 20 Vdc, IE = 0)
Emitter Cutoff Current
(VEB = 3.0 Vdc, IC = 0)
V(BR)CEO
30
V(BR)CBO
45
V(BR)EBO
4.0
ICBO
—
IEBO
—
—
100
—
100
nAdc
—
—
nAdc
—
—
Vdc
—
—
Vdc
Vdc
Motorola Small–Signal Transistors, FETs and Diodes Device Data
2–235
BF224
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Typ
Max
Unit
ON CHARACTERISTICS
DC Current Gain
(IC = 7.0 mAdc, VCE = 10 Vdc)
Base–Emitter On Voltage
(IC = 7.0 mAdc, VCE = 10 Vdc)
Collector–Emitter Saturation Voltage
(IC = 10 mAdc, IB = 1.0 mAdc)
hFE
30
VBE(on)
—
VCE(sat)
—
—
0.15
0.77
0.9
Vdc
—
—
mVdc
—
SMALL–SIGNAL CHARACTERISTICS
Current Gain — Bandwidth Product
(IC = 1.5 mAdc, VCE = 10 Vdc, f = 100 MHz)
(IC = 7.0 mAdc, VCE = 10 Vdc, f = 100 MHz)
Common Emitter Feedback Capacitance
(VCE = 10 Vdc, IE = 0, f = 1.0 MHz)
Noise Figure
(IC = 1.0 mAdc, VCE = 10 Vdc, RS = 50
Ω,
f = 100 MHz)
(IC = 1.0 mAdc, VCE = 10 Vdc, RS = 50
Ω,
f = 200 MHz)
fT
300
—
Cre
—
Nf
—
—
2.5
3.5
—
—
0.28
—
dB
600
850
—
—
pF
MHz
2–236
Motorola Small–Signal Transistors, FETs and Diodes Device Data
BF224
f T, CURRENT–GAIN — BANDWIDTH PRODUCT (MHz)
1000
700
500
300
200
100
VCE = 10 V
TA = 25°C
BF224
10
C, CAPACITANCE (pF)
2
Cib
1
0.7
0.5
0.4
0.3
0.2
Cob
20
10
Cre @ IE = 0
0.2 0.3 0.5 0.7 1
3 5
10
20
IC, COLLECTOR CURRENT (mA)
100
0.1
0.2
0.5
1
3 5
10
20
VR, REVERSE VOLTAGE (VOLTS)
Figure 1. Current–Gain — Bandwidth Product
Figure 2. Capacitances
100
VCE = 10 V
TA = 25°C
hFE, DC CURRENT GAIN
VCE = 10 V
50
100 MHz
200
100
70
50
30
20
10
0.1
mmhos
BF224
20
10
5
45 MHz
10.7 MHz
b11e 470 kHz < 0.2 mmhos
4
5
6
7
8
IC, COLLECTOR CURRENT (mA)
2
1
0.2 0.3 0.5 0.7 1
2 3 5 7 10
20
IC, COLLECTOR CURRENT (mA)
2
3
Figure 3. DC Current Gain
Figure 4. b11e
–100
VCE = 10 V
–50
45 MHz
100 MHz
2000
1000
VCE = 10 V
500
µ
mhos
45 MHz
100 MHz
mmhos
–20
–10
–5
10.7 MHz
200
100
50
10.7 MHz
–2
–1
b21e, at 470 kHz < 0.5 mmhos
4
5
6
7
8
IC, COLLECTOR CURRENT (mA)
2
3
20
470 kHz
1
2
3
4
5
IC, COLLECTOR CURRENT (mA)
6
7
Figure 5. b21e
Figure 6. b22e (boe)
Motorola Small–Signal Transistors, FETs and Diodes Device Data
2–237
BF224
10
VCE = 10 V
5
45 MHz
mmhos
2
mmhos
1
0.5
10.7 MHz
470 kHz
100 MHz
200
100
50
VCE = 10 V
f = 0.47 to 45 MHz
20
10
5
0.2
0.1
2
3
4
5
6
IC, COLLECTOR CURRENT (mA)
7
8
2
1
2
3
4
5
IC, COLLECTOR CURRENT (mA)
6
7
Figure 7. g11e (gie)
Figure 8. g21e (Yfe)
200
VCE = 10 V
100
50
µ
mhos
45 MHz
10.7 MHz
20
10
5
470 kHz
100 MHz
2
1
2
3
4
5
IC, COLLECTOR CURRENT (mA)
6
7
Figure 9. g22e (goe)
2–238
Motorola Small–Signal Transistors, FETs and Diodes Device Data
EMBOSSED TAPE AND REEL
SOT-23, SC-59, SC-70/SOT-323, SC–90/SOT–416, SOT-223 and SO-16 packages are available only in
Tape and Reel.
Use the appropriate suffix indicated below to order any of the SOT-23, SC-59,
SC-70/SOT-323, SOT-223 and SO-16 packages. (See Section 6 on Packaging for additional information).
SOT-23:
available in 8 mm Tape and Reel
Use the device title (which already includes the “T1” suffix) to order the 7 inch/3000 unit reel.
Replace the “T1” suffix in the device title with a “T3” suffix to order the 13 inch/10,000 unit reel.
available in 8 mm Tape and Reel
Use the device title (which already includes the “T1” suffix) to order the 7 inch/3000 unit reel.
Replace the “T1” suffix in the device title with a “T3” suffix to order the 13 inch/10,000 unit reel.
available in 8 mm Tape and Reel
Use the device title (which already includes the “T1” suffix) to order the 7 inch/3000 unit reel.
Replace the “T1” suffix in the device title with a “T3” suffix to order the 13 inch/10,000 unit reel.
available in 12 mm Tape and Reel
Use the device title (which already includes the “T1” suffix) to order the 7 inch/1000 unit reel.
Replace the “T1” suffix in the device title with a “T3” suffix to order the 13 inch/4000 unit reel.
available in 16 mm Tape and Reel
Add an “R1” suffix to the device title to order the 7 inch/500 unit reel.
Add an “R2” suffix to the device title to order the 13 inch/2500 unit reel.
SC-59:
SC-70/
SOT-323:
SOT-223:
SO-16:
RADIAL TAPE IN FAN FOLD BOX OR REEL
TO-92 packages are available in both bulk shipments and in Radial Tape in Fan Fold Boxes or Reels.
Fan Fold Boxes and Radial Tape Reel are the best methods for capturing devices for automatic insertion in
printed circuit boards.
TO-92:
available in Fan Fold Box
Add an “RLR” suffix and the appropriate Style code* to the device title to order the Fan Fold box.
available in 365 mm Radial Tape Reel
Add an “RLR” suffix and the appropriate Style code* to the device title to order the Radial Tape
Reel.
*Refer to Section 6 on Packaging for Style code characters and additional information on ordering
*requirements.
DEVICE MARKINGS/DATE CODE CHARACTERS
SOT-23, SC-59, SC-70/SOT-323, and the SC–90/SOT–416 packages have a device marking and a date
code etched on the device.
The generic example below depicts both the device marking and a representa-
tion of the date code that appears on the SC-70/SOT-323, SC-59 and SOT-23 packages.
ABC
D
The “D” represents a smaller alpha digit Date Code. The Date Code indicates the actual month in which the
part was manufactured.
2–2
Motorola Small–Signal Transistors, FETs and Diodes Device Data
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