SPICE MODEL: BC847AT BC857BT BC857CT
BC857AT, BT, CT
PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR
Features
·
·
·
·
NEW PRODUCT
Epitaxial Die Construction
Complementary NPN Types Available
(BC847AT, BT, CT)
Ultra-Small Surface Mount Package
Available in Lead Free/RoHS Compliant Version
(Note 2)
A
C
TOP VIEW
B
G
H
K
M
E
B C
SOT-523
Dim
A
B
C
D
G
H
J
K
L
D
L
Min
0.15
0.75
1.45
¾
0.90
1.50
0.00
0.60
0.10
0.10
0.45
0°
Max
0.30
0.85
1.75
¾
1.10
1.70
0.10
0.80
0.30
0.20
0.65
8°
Typ
0.22
0.80
1.60
0.50
1.00
1.60
0.05
0.75
0.22
0.12
0.50
¾
Mechanical Data
·
·
·
·
·
·
·
·
·
Case: SOT-523
Case Material: Molded Plastic. UL Flammability
Classification Rating 94V-0
Moisture sensitivity: Level 1 per J-STD-020C
Terminals: Solderable per MIL-STD-202, Method 208
Also Available in Lead Free Plating (Matte Tin Finish
annealed over Alloy 42 leadframe). Please See Ordering
Information, Note 5, on Page 2
Terminal Connections: See Diagram
Weight: 0.002 grams (approx.)
Marking Codes (See Table Below & Diagrams on Page 2)
Ordering & Date Code Information: See Page 2
Type
BC857AT
BC857BT
BC857CT
Marking
3V
3W
3G
J
M
N
a
All Dimensions in mm
Maximum Ratings
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current
Power Dissipation (Note 1)
@ T
A
= 25°C unless otherwise specified
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
d
R
qJA
T
j
, T
STG
Value
-50
-45
-5.0
-100
150
833
-55 to +150
Unit
V
V
V
mA
mW
°C/W
°C
Characteristic
Thermal Resistance, Junction to Ambient (Note 1)
Operating and Storage Temperature Range
Notes:
1. Device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch; pad layout as shown on Diodes Inc. suggested pad layout
document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. No purposefully added lead.
DS30275 Rev. 5 - 2
1 of 3
www.diodes.com
BC857AT, BT, CT
ã
Diodes Incorporated
Electrical Characteristics
@ T
A
= 25°C unless otherwise specified
Symbol
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
Current Gain A
B
C
h
FE
V
CE(SAT)
V
BE(SAT)
V
BE(ON)
I
CBO
f
T
C
OB
NF
Min
-50
-45
-5
125
220
420
—
—
—
-600
—
—
—
100
—
—
Typ
—
—
—
—
290
520
—
—
-700
-900
—
—
—
—
—
—
—
Max
—
—
—
250
475
800
-300
-650
—
—
-750
-820
-15
-4.0
—
4.5
10
Unit
V
V
V
—
mV
mV
mV
NA
µA
MHz
pF
dB
Test Condition
I
C
= 10mA, I
B
= 0
I
C
= 10mA, I
B
= 0
I
E
= 1mA, I
C
= 0
V
CE
= -5.0V, I
C
= -2.0mA
I
C
= -10mA, I
B
= -0.5mA
I
C
= -100mA, I
B
= -5.0mA
I
C
= -10mA, I
B
= -0.5mA
I
C
= -100mA, I
B
= -5.0mA
V
CE
= -5.0V, I
C
= -2.0mA
V
CE
= -5.0V, I
C
= -10mA
V
CB
= -30V
V
CB
= -30V, T
A
= 150°C
V
CE
= -5.0V, I
C
= -10mA,
f = 100MHz
V
CB
= -10V, f = 1.0MHz
I
C
= -0.2mA, V
CE
= -5.0Vdc,
R
S
= 2.0KW, f = 1.0KHz,
BW = 200Hz
NEW PRODUCT
Characteristic
Collector-Base Breakdown Voltage (Note 3)
Collector-Emitter Breakdown Voltage (Note 3)
Emitter-Base Breakdown Voltage (Note 3)
DC Current Gain (Note 3)
Collector-Emitter Saturation Voltage (Note 3)
Base-Emitter Saturation Voltage (Note 3)
Base-Emitter Voltage (Note 3)
Collector-Cutoff Current (Note 3)
Gain Bandwidth Product
Output Capacitance
Noise Figure
Notes:
3. Short duration pulse test used to minimize self-heating effect.
Ordering Information
Device
BC857AT-7
BC857BT-7
BC857CT-7
Notes:
(Note 4)
Packaging
SOT-523
SOT-523
SOT-523
Shipping
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
4. For Packaging Details: go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
5. For Lead Free/RoHS Compliant version part number, please add "-F" suffix to the part number above.
Example: BC857CT-7-F.
Marking Information
XXYM
Date Code Key
Year
Code
Month
Code
1998
J
Jan
1
1999
K
Feb
2
2000
L
March
3
2001
M
Apr
4
XX = Product Type Marking Code (See Page 1), e.g. 3V = BC857AT
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
2002
N
May
5
2003
P
Jun
6
2004
R
Jul
7
2005
S
Aug
8
2006
T
Sep
9
2007
U
Oct
O
2008
V
Nov
N
2009
W
Dec
D
DS30275 Rev. 5 - 2
2 of 3
www.diodes.com
BC857AT, BT, CT
250
0.5
P
D
, POWER DISSIPATION (mW)
V
CE(SAT)
, COLLECTOR TO EMITTER
SATURATION VOLTAGE (V)
NEW PRODUCT
200
0.4
I
C
I
B
= 10
150
0.3
100
0.2
T
A
= 25°C
T
A
= 150°C
50
0.1
T
A
= -50°C
0
0.1
1
10
100
1000
0
0
25
50
75
100
125
150
175
200
T
A
, AMBIENT TEMPERATURE (°C)
Fig. 1, Max Power Dissipation vs
Ambient Temperature
1000
T
A
= 150°C
I
C
, COLLECTOR CURRENT (mA)
Fig. 2 Collector Emitter Saturation Voltage
vs. Collector Current
1000
100
T
A
= 25°C
T
A
= -50°C
f
t
, GAIN BANDWIDTH PRODUCT (MHz)
V
CE
= 5V
V
CE
= 5V
h
FE
, DC CURRENT GAIN
100
10
1
1
10
100
1000
I
C
, COLLECTOR CURRENT (mA)
Fig. 3, DC Current Gain vs. Collector Current
10
1
10
100
I
C
, COLLECTOR CURRENT (mA)
Fig. 4, Gain Bandwidth Product vs Collector Current
DS30275 Rev. 5 - 2
3 of 3
www.diodes.com
BC857AT, BT, CT
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