DS30373 Rev. 2 - 2 1 of 3 BC857BS
www.diodes.com ã Diodes Incorporated
BC857BS
DUAL PNP SURFACE MOUNT SMALL SIGNAL TRANSISTOR
Features
Maximum Ratings @ TA= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Collector-Base Voltage VCBO -50 V
Collector-Emitter Voltage VCEO -45 V
Emitter-Base Voltage VEBO -5.0 V
Collector Current (Note 1) IC-100 mA
Peak Collector Current (Note 1) ICM -200 mA
Peak Base Current (Note 1) IBM -200 mA
Power Dissipation at TSB = 50°C (Note 1) Pd200 mW
Operating and Storage Temperature Range Tj,T
STG -55 to +125 °C
·Ideally Suited for Automatic Insertion
·For Switching and AF Amplifier Applications
·Ultra-Small Surface Mount Package
·Also Available in Lead Free Version
·Case: SOT-363, 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
·Also Available in Lead Free Plating (Matte Tin
Finish). Please see Ordering Information,
Note 4, on Page 3
·Terminal Connections: See Diagram
·Marking: K3W (See Page 3)
·Weight: 0.006 grams
Mechanical Data
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.
TCUDORPWEN
A
BC
E2B2
E1
C2B1
C1
JD
H
K
F
M
L
TOP VIEW
SOT-363
Dim Min Max
A0.10 0.30
B1.15 1.35
C2.00 2.20
D0.65 Nominal
F0.30 0.40
H1.80 2.20
J¾0.10
K0.90 1.00
L0.25 0.40
M0.10 0.25
a0°8°
All Dimensions in mm
SPICE MODEL: BC857BS
DS30373 Rev. 2 - 2 2 of 3 BC857BS
www.diodes.com
Electrical Characteristics @ TA= 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Test Condition
DC Current Gain (Note 2) hFE 220 — 475 — VCE = -5.0V, IC = -2.0mA
Thermal Resistance, Junction to Ambient Air (Note 1) RqJA — — 625 °C/W Note 1
Collector-Emitter Saturation Voltage (Note 2) VCE(SAT) ——
—
-100
-400 mV IC= -10mA, IB = -0.5mA
IC = -100mA, IB = -5.0mA
Base-Emitter Saturation Voltage (Note 2) VBE(SAT) — -700 — mV IC = -10mA, IB = -0.5mA
Base-Emitter Voltage (Note 2) VBE -580 -665 -750 mV VCE = -5.0V, IC = -2.0mA
Collector Cutoff Current ICBO
ICBO ——
—
-15
-4.0
nA
µA
VCB = -30V, IE= 0
VCB = -30V, Tj = 150°C
Emitter Cutoff Current IEBO — — -100 nA VEB = -5.0V, IC = 0
Gain Bandwidth Product fT100 — — MHz VCE = -5.0V, IC = -10mA,
f = 100MHz
Collector-Base Capacitance CCBO —— 3 pF
VCB = -10V, f = 1.0MHz
Emitter-Base Capacitance CEBO —11 — pF
VEB = -0.5V, f = 1.0MHz
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. Short duration test pulse used to minimize self-heating effect.
TCUDORPWEN
0
50
100
150
200
2
5
0
0 100 200
P , POWER DISSIPATION (mW)
d
T , AMBIENT TEMPERATURE (°C)
A
Fi
g
.1,PowerDeratin
g
Curve
(see Note 1)
1
10
100
1000
10 100
1
h DC CURRENT GAIN
FE,
I , COLLECTOR CURRENT (mA)
C
Fi
g
. 2, DC Current Gain vs Collector Current
V = -5V
CE
T = 25°C
A
T = -50°C
A
T = 150°C
A
0
0.1
0.2
0.3
0.4
0
.5
0.1 110
100 1000
V , COLLECTOR SATURATION VOLTAGE (V)
CE
I , COLLECTOR CURRENT (mA)
C
Fi
g
. 3, Collector Saturation Volta
g
e vs Collector Current
I / I = 20
CB
T = 150°C
A
T = 25°C
A
T = -50°C
A10
100
1000
110100
f , GAIN BANDWIDTH PRODUCT (MHz)
T
I , COLLECTOR CURRENT (mA)
C
Fi
g
. 4, Gain Bandwidth Product vs Collector Current
V = -5V
CE
T = 25°C
A
DS30373 Rev. 2 - 2 3 of 3 BC857BS
www.diodes.com
Month Jan Feb March Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1234567
89 OND
Year 2002 2003 2004 2005 2006 2007 2008 2009
Code NPR
STUVW
Date Code Key
K3W = Product Type Marking Code
YM = Date Code Marking
Y = Year ex: N = 2002
M = Month ex: 9 = September
K3W YM
K3W YM
Marking Information
Device Packaging Shipping
BC857BS-7 SOT-363 3000/Tape & Reel
Ordering Information (Note 3)
TCUDORPWEN
Notes: 3. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
4. For Lead Free version (with Lead Free terminal finish) part number, please add "-F" suffix to part number above.
Example: BC857BS-7-F.