Diodes BC857AT, BC857BT, BC857CT User Manual
Features
• Epitaxial Die Construction
• Complementary NPN Types Available (BC847AT,BT,CT)
• Ultra-Small Surface Mount Package
• Lead Free/RoHS Compliant (Note 2)
• Qualified to AEC-Q101 Standards for High Reliability
• "Green" Device (Note 4 and 5)
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
• Lead Free Plating (Matte Tin Finish annealed over Alloy
42 leadframe).
• Terminal Connections: See Diagram
• Marking Code: See Table Below & Diagram on Page 2
• Ordering & Date Code Information: See Page 2
• Weight: 0.002 grams (approximate)
BC857AT, BT, CT
PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR
A
C
TOP VIEW
B
K
J
E
G
H
D
Type Marking
BC857AT 3V
BC857BT 3W
BC857CT 3G
C
B
N
L
M
SOT-523
Dim Min Max Typ
A 0.15 0.30 0.22
B 0.75 0.85 0.80
C 1.45 1.75 1.60
D
⎯ ⎯
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
0° 8°
α
All Dimensi mm ons in
0.50
⎯
Maximum Ratings @T
= 25°C unless otherwise specified
A
Characteristic Symbol Value Unit
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient (Note 1)
Operating and Storage Temperature Range
Electrical Characteristics @T
= 25°C unless otherwise specified
A
V
V
V
R
Tj, T
CBO
CEO
EBO
IC
Pd
JA
θ
STG
-50 V
-45 V
-5.0 V
-100 mA
150 mW
833 °C/W
-55 to +150 °C
Characteristic Symbol Min Typ Max Unit Test Condition
Collector-Base Breakdown Voltage (Note 3)
Collector-Emitter Breakdown Voltage (Note 3)
Emitter-Base Breakdown Voltage (Note 3)
DC Current Gain (Note 3) Current Gain A
B
C
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
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
hFE
V
CE(SAT)
V
BE(SAT)
V
BE(ON)
I
CBO
COB
fT
-50 — — V
-45 — — V
-5 — — V
125
220
420
—
— — -700
-600
—
—
—
—
290
520
— — -300
-650
-900 — —
— — -750
-820
— — -15
100 — — MHz
— — 4.5 pF
250
475
800
-4.0
IC = 10μA, IB = 0
IC = 10mA, IB = 0
IE = 1μA, IC = 0
—
VCE = -5.0V, IC = -2.0mA
IC = -10mA, IB = -0.5mA
mV
IC = -100mA, IB = -5.0mA
IC = -10mA, IB = -0.5mA
mV
IC = -100mA, IB = -5.0mA
VCE = -5.0V, IC = -2.0mA
mV
VCE = -5.0V, IC = -10mA
VCB = -30V
NA
µA
VCB = -30V, TA = 150°C
VCE = -5.0V, IC = -10mA, f = 100MHz
VCB = -10V, f = 1.0MHz
IC = -0.2mA, VCE = -5.0Vdc,
Noise Figure NF — — 10 dB
RS = 2.0KΩ, f = 1.0KHz,
BW = 200Hz
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
Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
DS30275 Rev. 9 - 2
can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. No purposefully added lead
3. Short duration pulse test used to minimize self-heating effect.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
5. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date
1 of 3
www.diodes.com
BC857AT, BT, CT
© Diodes Incorporated
P, P
O
R
PATIO
C
O
CTO
R
T
O
T
TER
G
T
H PRODUCT
H
C CUR
REN
T GAIN
250
200
0.5
0.4
I
C
= 10
I
B
N (mW)
150
DISSI
100
WE
D
1,000
100
50
0
0
25 50
T , AMBIENT TEMPERATURE (°C)
A
75
100 125
Fig. 1, Max Power Dissipation vs.
Ambient Temperatur e
T = 150°C
A
T = 25°C
A
T = -50°C
A
150
175
V = 5V
CE
200
EMI
0.3
T = 25°C
0.2
LLE
SATURATION VO LTAGE ( V)
0.1
CE(SAT)
V,
T = 150°C
A
A
T = -50°C
A
0
10.1
I , COLLECTOR CURRENT (mA)
C
10
100
1,000
Fig. 2, Collector Emitter Saturation Voltage
vs. Collect or Current
1,000
V = 5V
z)
CE
(M
100
10
FE
h, D
AIN BANDWID
t
f,
1
1
10 100
I , COLLECTOR CURRENT (mA)
C
Fig. 3, DC Current Gain vs. Collector Current
1,000
10
1
I , COLLECTOR CURRENT (mA)
C
10
Fig. 4, Gain Bandwidth Product vs. Collector Current
Ordering Information (Note 6)
Device
BC857AT-7-F
BC857BT-7-F
BC857CT-7-F
Notes: 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Packaging Shipping
SOT-523 3000/Tape & Reel
SOT-523 3000/Tape & Reel
SOT-523 3000/Tape & Reel
Marking Information
XXYM
Date Code Key
Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Code J K L M N P R S T U V W X Y Z
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
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)
100
DS30275 Rev. 9 - 2
2 of 3
www.diodes.com
BC857AT, BT, CT
© Diodes Incorporated
Loading...