Page 1
Features
BV
I
P
0.48mm
0.4mm height package minimizing off-board profile
Complementary NPN Type BC847BFA
Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
> -45V
CEO
= -100mA high Collector Current
C
= 435mW Power Dissipation
D
2
package footprint, 16 times smaller than SOT23
X2-DFN0806-3
Top View
Bottom View
B
Device Symbol
BC857BFA
45V PNP SMALL SIGNAL TRANSISTOR IN DFN0806
Mechanical Data
Case: X2-DFN0806-3
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish NiPdAu, Solderable per MIL-STD-202,
Method 208
Weight: 0.0008 grams (approximate)
e4
C
B
C
E
E
Top View
Device Schematic
Ordering Information (Note 4)
Product Marking Reel size (inches) Tape width (mm) Quantity per reel
BC857BFA-7B 3W 7 8mm 10,000
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
BC857FA
Document number: DS36018 Rev. 1 - 2
3W
Top View
Bar Denotes Base
and Emitter Side
1 of 6
www.diodes.com
3W = Product Type Marking Code
July 2013
© Diodes Incorporated
Page 2
V
V
V
BC857BFA
Absolute Maximum Ratings (@T
Characteristic Symbol
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Continuous Collector Current
Peak Pulse Collector Current
= +25°C, unless otherwise specified.)
A
V
CBO
V
CEO
V
EBO
I
C
I
CM
alue Unit
-50 V
-45 V
-6.0 V
-100 mA
-200 mA
Thermal Characteristics (@T
Characteristic Symbol
Power Dissipation (Note 5)
Thermal Resistance, Junction to Ambient (Note 5)
Thermal Resistance, Junction to Lead (Note 6)
Operating and Storage and Temperature Range
= +25°C, unless otherwise specified.)
A
R
R
T
J
, T
alue Unit
P
D
θJA
JL
STG
435 mW
287 °C/W
150
C/W
-55 to +150 °C
ESD Ratings (Note 7)
Characteristic Symbol
Electrostatic Discharge - Human Body Model ESD HBM 4,000 V 3A
Electrostatic Discharge - Machine Model ESD MM 200 V B
Notes: 5. For the device mounted on minimum recommended pad layout 1oz copper that is on a single-sided 1.6mm FR4 PCB; device is measured
under still air conditions whilst operating in steady state condition. The entire exposed collector pad is attached to the heatsink.
6. Thermal resistance from junction to solder-point (on the exposed collector pad).
7. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
alue Unit JEDEC Class
Thermal Characteristics and Derating Information
2 of 6
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0 20406080100120140160
Max Power Dissipation (W)
Temperature (°C)
Derating Curve
100
10
1
Maximum Power (W)
100µ 1m 10m 100m 1 10 100 1k
Pulse Width (s)
Single Pulse
T
amb
Pulse Power Dissipation
=25°C
July 2013
© Diodes Incorporated
V
CE(sat)
Limited
100m
DC
1s
100ms
10ms
Single Pulse
T
Collector Current (A)
- I
10m
C
=25°C
amb
100m 1 10
1ms
100µs
- VCE Collector-Emitter Voltage (V)
Safe Operating Area
300
T
275
250
225
200
175
150
125
100
75
50
25
Thermal Resistance (°C/W)
=25°C
amb
D=0.5
D=0.2
0
100µ 1m 10m 100m 1 10 100 1k
Single Pul se
D=0.05
D=0.1
Pulse Width (s)
Transient Thermal Impedance
BC857FA
Document number: DS36018 Rev. 1 - 2
www.diodes.com
Page 3
Electrical Characteristics (@T
= +25°C, unless otherwise specified.)
A
Characteristic Symbol Min Typ Max Unit Test Condition
OFF CHARACTERISTICS
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage
Collector-Emitter Breakdown Voltage (Note 8)
Collector-Base Breakdown Voltage
Collector-Base Cutoff Current
Collector-Emitter Cutoff Current
BV
BV
BV
BV
I
CBO
I
CES
CBO
CES
CEO
EBO
-50 -100
-50 -90
-45 -65
-6.0 -8.5
ON CHARACTERISTICS (Note 8)
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
Base-Emitter Voltage
V
CE(sat)
V
BE(sat)
V
BE(on)
h
FE
100
200
-600
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
Current Gain-Bandwidth Product
Note: 8. Measured under pulsed conditions. Pulse width 300µs. Duty cycle 2%.
BC857FA
Document number: DS36018 Rev. 1 - 2
C
obo
f
T
www.diodes.com
100 340
3 of 6
340
330
-70
-300
-760
-885
-670
-715
2.0
V
V
V
-15 nA
-15 nA
470
-175
-500
-1000
-1100
-780
-850
mV
mV
mV
pF
MHz
BC857BFA
IC = -50µA, IB = 0
IC = -50µA, IB = 0
IC = -1mA, IB = 0
IE = -50µA, IC = 0
V
= -40V
CB
V
= -40V
CE
I
= -10µA, V
C
I
= -2.0mA, VCE = -5.0V
C
= -10mA, IB = -0.5mA
I
C
I
= -100mA, IB = -5.0mA
C
= -10mA, IB = -0.5mA
I
C
I
= -100mA, IB = -5.0mA
C
I
= -2.0mA, V
C
= -10mA, V
I
C
VCB = -10.0V, f = 1.0MHz, IE = 0
= -5V, IC = -10mA,
V
CE
f = 100MHz
= -5.0V
CE
= -5V
CE
= -5V
CE
July 2013
© Diodes Incorporated
Page 4
C
O
CTO
R CUR
RENT
C CUR
R
G
C
O
CTO
R
T
TER
C
O
CTO
R
T
TER
T
TER
T
URN
O
N VOLT
G
T
T
R
T
U
R
T
O
OLT
G
Typical Electrical Characteristics (@T
0.18
I = -1.8mA
0.16
0.14
(A)
I = -1.2mA
0.12
B
I = -1.4mA
B
I = -1.6mA
B
B
0.10
0.08
LLE
0.06
0.04
C
-I ,
0.02
0
01 2 3 45
-V , COLLECTOR-EMITTER VOLTAGE (V)
CE
Fig. 4 Typical Collector Curr ent
vs. Collector-Emitter Voltage
1
I/I = 10
CB
I = -2mA
B
I = -1mA
B
I = -0.8mA
B
I = -0.6mA
B
I = -0.4mA
B
I = -0.2mA
B
= +25°C, unless otherwise specified.)
A
600
550
500
450
AIN
400
350
ENT
300
250
200
FE
-h , D
150
100
50
0
0 1 10 100 1,000
Fig. 5 Typical DC Current Gain vs. Collector Current
1
T = 150°C
A
T = 125°C
A
T = 85°C
A
T = 25°C
A
T = -55°C
A
-I , COLLECTOR CURRENT (mA)
C
I/I = 20
CB
BC857BFA
V = 5V
CE
-EMI
T = 150°C
VOLTAGE (V)
0.1
LLE
SATURATION
CE(SAT)
-V ,
0.01
0.1 1 10 100 1,000
-I , COLLECTOR CURRENT (mA)
Fig. 6 Typical Collector-Emitter Saturation Voltage
C
T = 125°C
A
T = -55°C
A
T = 85°C
A
T = 25°C
A
A
vs. Collector Current
1.0
E (V)
A
0.8
V = -5V
CE
T = -55°C
A
-
T = 25°C
0.6
0.4
A
T = 85°C
A
T = 125°C
A
T = 150°C
A
-EMI
T = 150°C
VOLTAGE (V)
0.1
T = 125°C
LLE
SATURATION
CE(SAT)
A
T = -55°C
A
T = 85°C
A
T = 25°C
A
A
-V ,
0.01
0.1 1 10 100 1,000
Fig. 7 Typical Collector-Emitter Sat uration Voltage
-I , COLLECTOR CURRENT (mA)
C
vs. Collector Current
1.2
E (V)
Gain = 10
A
1.0
N V
I
0.8
A
SA
E
0.6
0.4
T = -55°C
A
T = 25°C
A
T = 85°C
A
T = 125°C
A
T = 150°C
A
BE(ON)
0.2
-V , BASE-EMI
0.1 1 10 100 1,000
BC857FA
Document number: DS36018 Rev. 1 - 2
-I , COLLECTOR CURRENT (mA)
C
Fig. 8 Typical Base-Emitter Turn-On Voltage
vs. Collector Current
4 of 6
www.diodes.com
0.2
0.1 1 10 100 1,000
BE(SAT)
-V , BASE-EMI
-I , COLLECTOR CURRENT (mA)
C
Fig. 9 Typical Base-Emitter Saturation Voltage
vs. Collector Current
July 2013
© Diodes Incorporated
Page 5
Package Outline Dimensions
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
A
D
e
K
E
E1
D1
A3
A1
Seating Plane
L (2x)
b (2x)
Pin#1
R0.075
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
X1
BC857BFA
X2-DFN0806-3
Dim Min Max Typ
A 0.375 0.40 0.39
A1 0 0.05 0.02
A3 - - 0.10
b 0.10 0.20 0.15
D 0.55 0.65 0.60
D1 0.35 0.45 0.40
E 0.75 0.85 0.80
E1 0.20 0.30 0.25
e - - 0.35
K - - 0.20
L 0.20 0.30 0.25
All Dimensions in mm
Y1
Y (2x)
BC857FA
Document number: DS36018 Rev. 1 - 2
Dimensions
X (2x)
Y2
C
X2
5 of 6
www.diodes.com
C 0.350
X 0.200
X1 0.450
X2 0.550
Y 0.375
Y1 0.475
Y2 1.000
Value
(in mm)
July 2013
© Diodes Incorporated
Page 6
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2013, Diodes Incorporated
www.diodes.com
BC857BFA
BC857FA
Document number: DS36018 Rev. 1 - 2
6 of 6
www.diodes.com
July 2013
© Diodes Incorporated
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