BCX71K — PNP General-Purpose Amplifier
March 2014
BCX71K
PNP General-Purpose Amplifier
Description
This device is designed for applications requiring
extremely high-current gain at collector currents to
300 mA. Sourced from process 68.
C
E
SOT-23
Mark: BK
B
Ordering Information
Part Number
BCX71K
Marking
BK
Package
SOT-23 3L
Packing Method
Tape and Reel
Absolute Maximum Ratings
(1),(2)
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at T
A
= 25°C unless otherwise noted.
Symbol
V
CEO
V
CES
V
EBO
I
C
T
J ,
T
STG
Collector-Emitter Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Parameter
Value
-45
-45
-5
-500
-55 to +150
Unit
V
V
V
mA
°C
Collector Current - Continuous
Junction and Storage Temperature Range
Notes:
1. These ratings are based on a maximum junction temperature of 150°C.
2. These are steady-state limits. Fairchild Semiconductor should be consulted on applications involving pulsed or
low-duty-cycle operations.
© 1997 Fairchild Semiconductor Corporation
BCX71K Rev. 1.1.0
1
www.fairchildsemi.com
BCX71K — PNP General-Purpose Amplifier
Thermal Characteristics
(3)
Values are at T
A
= 25°C unless otherwise noted.
Symbol
P
D
R
θJA
Total Device Dissipation
Derate Above T
A
= 25°C
Parameter
Max.
350
2.8
357
Unit
mW
mW/°C
°C/W
Thermal Resistance, Junction to Ambient
Note:
3. Device mounted on FR-4 PCB 40 mm X 40 mm X 1.5 mm.
Electrical Characteristics
Values are at T
A
= 25°C unless otherwise noted.
Symbol
V
(BR)CEO
V
(BR)EBO
I
CES
Parameter
Emitter-Base Breakdown Voltage
Collector Cut-Off Current
Conditions
I
E
= -10
μA,
I
C
= 0
V
CE
= -45 V, I
E
= 0
V
CE
= -45 V, I
E
= 0,
T
A
= 100°C
I
C
= -10
μA,
V
CE
= -5.0 V
Min.
-45
-5.0
Max.
Unit
V
V
Collector-Emitter Breakdown Voltage I
C
= -1.0 mA, I
B
= 0
-20
-20
100
380
110
-0.06
-0.12
-0.60
-0.68
-0.60
-0.25
-0.55
-0.85
-1.05
-0.75
6.0
630
nA
μA
h
FE
DC Current Gain
I
C
= -2.0 mA, V
CE
= -5.0 V
I
C
= -50 mA, V
CE
= -1.0 V
I
C
= -10 mA, I
B
= -0.25 mA
I
C
= -50 mA, I
B
= -1.25 mA
I
C
= -10 mA, I
B
= -0.25 mA
I
C
= -50 mA, I
B
= -1.25 mA
I
C
= -2.0 mA, V
CE
= -5.0 V
V
CB
= -10 V, I
E
= 0,
f = 1.0 MHz
I
C
= -0.2 mA, V
CE
= -5.0 V,
R
S
= 2.0 kΩ, f = 1.0 kHz,
B
W
= 200 Hz
I
C
= -10 mA, I
B1
= -1.0 mA
I
B2
= -1.0 mA, V
BB
= -3.6 V,
R
1
= R
2
= 5.0 kΩ,
R
L
= 990
Ω,
V
CE
(sat)
V
BE
(sat)
V
BE
(on)
C
ob
NF
t
on
t
off
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
Base-Emitter On Voltage
Output Capacitance
V
V
V
pF
Noise Figure
Turn-On Time
Turn-Off Time
6.0
150
800
dB
ns
ns
© 1997 Fairchild Semiconductor Corporation
BCX71K Rev. 1.1.0
2
www.fairchildsemi.com
BCX71K — PNP General-Purpose Amplifier
Typical Performance Characteristics
V
CESAT
- COLLECTOR EMITTER VOLTAGE (V)
h
FE
- TYPICAL PULSED CURRENT GAIN
500
V
CE
= 5V
0.3
β
= 10
400
300
125 °C
0.25
0.2
25 °C
0.15
0.1
125
°
C
25
°
C
200
100
0
0.01
- 40 °C
0.05
0
0.1
- 40
°
C
0.1
1
10
100
I
C
- COLLECTOR CURRENT (mA)
1
10
100
I
C
- COLLECTOR CURRE NT (mA)
300
Figure 1. Typical Pulsed Current Gain vs.
Collector Current
Figure 2. Collector-Emitter Saturation Voltage vs.
Collector Current
V
BEON
- BAS E EMITTER ON VOLTAGE (V)
V
BESAT
- BASE EM ITTE R VOLTAGE (V)
1.2
1
β
= 10
1
- 40
°
C
25
°
C
125
°
C
0.8
0.6
0.4
0.2
0
0.1
0.8
0.6
0.4
0.2
0
0.1
- 40
°
C
25
°
C
125
°
C
V
CE
= 5V
1
10
100
I
C
- COLLECTOR CURRE NT (mA)
300
1
10
I
C
- COLLECTOR CURRE NT (mA)
100 200
Figure 3. Base-Emitter Saturation Voltage
vs. Collector Current
Figure 4. Base-Emitter On Voltage vs.
Collector Current
100
V
CB
= 50V
10
1
0.1
0.01
25
BV
CER
- BREAKDOWN VOLTAGE (V)
I
CBO
- COLLE CTOR CURRENT (nA)
95
90
85
80
75
50
75
100
T
A
- AMBIE NT TEMP ERATURE (
°
C)
125
70
0.1
1
10
100
1000
RESISTANCE (k
Ω
)
Figure 5. Collector Cut-Off Current vs.
Ambient Temperature
Figure 6. Collector-Emitter Breakdown Voltage with
Resistance Between Emitter-Base
© 1997 Fairchild Semiconductor Corporation
BCX71K Rev. 1.1.0
3
www.fairchildsemi.com
BCX71K — PNP General-Purpose Amplifier
Typical Performance Characteristics
(Continued)
V
CE
- COLLECTOR-EMITTER VOLTAGE (V)
100
4
Ta = 25°C
f = 1.0 MHz
3
CAPACITANCE (pF)
2
Ic =
100 uA
50 mA
300 mA
10
Cib
Cob
1
0
100
300
700
2000 4000
0.1
1
10
100
I
B
- BASE CURRENT (
μ
A)
V
CE
- COLLECTOR VOLTAGE (V)
Figure 7. Collector Saturation Region
Figure 8. Input and Output Capacitance vs.
Reverse Voltage
f
T
- GAIN BANDWIDTH PRODUCT (MHz)
40
350
Vce = 5V
30
P
D
- POWER DISSIPATION (mW)
300
250
200
150
100
50
0
0
25
50
75
100
TEMPERATURE (
o
C)
125
150
SOT-23
20
10
0
1
10
20
50
100 150
I
C
- COLLECTOR CURRENT (mA)
Figure 9. Gain Bandwidth Product vs.
Collector Current
Figure 10. Power Dissipation vs.
Ambient Temperature
© 1997 Fairchild Semiconductor Corporation
BCX71K Rev. 1.1.0
4
www.fairchildsemi.com
BCX71K — PNP General-Purpose Amplifier
Physical Dimensions
SOT-23
2.92±0.20
3
1.40
0.95
1.30+0.20
-0.15
2.20
1
(0.29)
0.95
1.90
2
0.60
0.37
0.20
A B
1.90
LAND PATTERN
RECOMMENDATION
1.00
1.20 MAX
(0.93)
SEE DETAIL A
0.10
0.00
0.10
C
2.40±0.30
NOTES: UNLESS OTHERWISE SPECIFIED
C
GAGE PLANE
A) REFERENCE JEDEC REGISTRATION
TO-236, VARIATION AB, ISSUE H.
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS ARE INCLUSIVE OF BURRS,
MOLD FLASH AND TIE BAR EXTRUSIONS.
D) DIMENSIONING AND TOLERANCING PER
ASME Y14.5M - 1994.
E) DRAWING FILE NAME: MA03DREV10
0.23
0.08
0.25
0.20 MIN
(0.55)
SEATING
PLANE
SCALE: 2X
Figure 11. 3-LEAD, SOT23, JEDEC TO-236, LOW PROFILE (ACTIVE)
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the
warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/dwg/MA/MA03D.pdf.
For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:
http://www.fairchildsemi.com/packing_dwg/PKG-MA03D.pdf.
© 1997 Fairchild Semiconductor Corporation
BCX71K Rev. 1.1.0
5
www.fairchildsemi.com
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