DIODES BC857AT

BC857AT, BT, CT
PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR
NEW PRODUCT
Features
·
·
·
Epitaxial Die Construction
Complementary NPN Types Available
(BC847AT, BT, CT)
Ultra-Small Surface Mount Package
SOT-523
A
C
Mechanical Data
·
·
·
·
·
·
·
·
Case: SOT-523, Molded Plastic
Case material - UL Flammability Rating
Classification 94V-0
Moisture sensitivity: Level 1 per J-STD-020A
Terminals: Solderable per MIL-STD-202,
Method 208
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
E
B
G
H
K
M
J
D
L
a
Min
Max
Typ
0.15
0.30
0.22
B
0.75
0.85
0.80
C
1.45
1.75
1.60
D
¾
¾
0.50
G
0.90
1.10
1.00
H
1.50
1.70
1.60
J
0.00
0.10
0.05
K
0.60
0.80
0.75
L
0.10
0.30
0.22
M
0.10
0.20
0.12
N
0.45
0.65
0.50
a
0°
8°
¾
All Dimensions in mm
Marking
BC857AT
3V
BC857BT
3W
BC857CT
3G
Maximum Ratings
B C
TOP VIEW
Dim
A
@ TA = 25°C unless otherwise specified
Symbol
Value
Unit
Collector-Base Voltage
Characteristic
VCBO
-50
V
Collector-Emitter Voltage
VCEO
-45
V
Emitter-Base Voltage
VEBO
-5.0
V
Collector Current
IC
-100
mA
Power Dissipation (Note 1)
Pd
150
mW
RqJA
833
°C/W
Tj, TSTG
-55 to +150
°C
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 ourwebsite at http://www.diodes.com/datasheets/ap02001.pdf.
DS30275 Rev. 2 - 2
1 of 2
BC857AT, BT, CT
NEW PRODUCT
Electrical Characteristics
@ TA = 25°C unless otherwise specified
Symbol
Min
Typ
Max
Unit
Collector-Base Breakdown Voltage (Note 2)
Characteristic
V(BR)CBO
-50
—
—
V
IC = 10mA, IB = 0
Collector-Emitter Breakdown Voltage (Note 2)
V(BR)CEO
-45
—
—
V
IC = 10mA, IB = 0
Emitter-Base Breakdown Voltage (Note 2)
V(BR)EBO
-5
—
—
V
IE = 1mA, IC = 0
hFE
125
220
420
—
290
520
250
475
800
—
VCE = -5.0V, IC = -2.0mA
Collector-Emitter Saturation Voltage (Note 2)
VCE(SAT)
—
—
—
-300
-650
mV
IC = -10mA, IB = -0.5mA
IC = -100mA, IB = -5.0mA
Base-Emitter Saturation Voltage (Note 2)
VBE(SAT)
—
—
-700
-900
—
—
mV
IC = -10mA, IB = -0.5mA
IC = -100mA, IB = -5.0mA
Base-Emitter Voltage (Note 2)
VBE(ON)
-600
—
—
—
-750
-820
mV
VCE = -5.0V, IC = -2.0mA
VCE = -5.0V, IC = -10mA
ICBO
—
—
—
—
-15
-4.0
NA
µA
VCB = -30V
VCB = -30V, TA = 150°C
fT
100
—
—
MHz
Output Capacitance
COB
—
—
4.5
pF
Noise Figure
NF
—
—
10
dB
DC Current Gain (Note 2)
Current Gain A
B
C
Collector-Cutoff Current (Note 2)
Gain Bandwidth Product
Ordering Information
Notes:
Test Condition
VCE = -5.0V, IC = -10mA,
f = 100MHz
VCB = -10V, f = 1.0MHz
IC = -0.2mA, VCE = -5.0Vdc,
RS = 2.0KW, f = 1.0KHz,
BW = 200Hz
(Note 3)
Device
Packaging
Shipping
BC857AT-7
SOT-523
3000/Tape & Reel
BC857BT-7
SOT-523
3000/Tape & Reel
BC857CT-7
SOT-523
3000/Tape & Reel
2. Short duration pulse test used to minimize self-heating effect.
3. For Packaging Details: go to ourwebsite at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
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)
XXYM
Date Code Key
Year
1998
1999
2000
2001
2002
2003
2004
Code
J
K
L
M
N
P
R
Month
Jan
Feb
March
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Code
1
2
3
4
5
6
7
8
9
O
N
D
DS30275 Rev. 2 - 2
2 of 2
BC857AT, BT, CT