BC857XQA series
45 V, 100 mA PNP general-purpose transistors
Rev. 1 — 26 August 2015
Product data sheet
1. Product profile
1.1 General description
PNP general-purpose transistors in a leadless ultra small DFN1010D-3 (SOT1215)
Surface-Mounted Device (SMD) plastic package with visible and solderable side pads.
Table 1.
Product overview
Package
Nexperia
BC857AQA
BC857BQA
BC857CQA
DFN1010D-3
(SOT1215)
JEITA
-
JEDEC
-
BC847AQA
BC847BQA
BC847CQA
NPN complement
Type number
1.2 Features and benefits
General-purpose transistors
Three current gain selections
Low package height of 0.37 mm
Suitable for Automatic Optical Inspection (AOI) of solder joint
AEC-Q101 qualified
1.3 Applications
General-purpose switching and amplification
Mobile applications
1.4 Quick reference data
Table 2.
Quick reference data
T
amb
= 25
C unless otherwise specified.
Symbol
V
CEO
I
C
h
FE
Parameter
collector-emitter voltage
collector current
DC current gain
BC857AQA
BC857BQA
BC857CQA
V
CE
=
5
V; I
C
=
2
mA
125
220
420
-
-
-
250
475
800
Conditions
open base
Min
-
-
Typ
-
-
Max
45
100
Unit
V
mA
Nexperia
BC857XQA series
45 V, 100 mA NPN general-purpose transistors
2. Pinning information
Table 3.
Pin
1
2
3
4
Pinning
Symbol
B
E
C
C
Description
base
emitter
collector
collector
2
4
3
E
sym123
Simplified outline
Graphic symbol
C
1
B
Transparent top view
3. Ordering information
Table 4.
Ordering information
Package
Name
BC857AQA
BC857BQA
BC857CQA
DFN1010D-3
Description
plastic thermal enhanced ultra thin small outline
package; no leads;
3 terminals; body: 1.1
1.0
0.37 mm
Version
SOT1215
Type number
BC857XQA_SER
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 26 August 2015
2 of 15
Nexperia
BC857XQA series
45 V, 100 mA NPN general-purpose transistors
4. Marking
Table 5.
Marking codes
Marking code
00 11 10
00 11 11
01 00 01
Type number
BC857AQA
BC857BQA
BC857CQA
4.1 Binary marking code description
READING
DIRECTION
MARKING CODE
(EXAMPLE)
YEAR DATE
CODE
VENDOR CODE
PIN 1
INDICATION MARK
MARK-FREE AREA
READING EXAMPLE:
11
01
10
aaa-008041
Fig 1.
SOT1215 binary marking code description
BC857XQA_SER
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 26 August 2015
3 of 15
Nexperia
BC857XQA series
45 V, 100 mA NPN general-purpose transistors
5. Limiting values
Table 6.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
CM
I
BM
P
tot
Parameter
collector-base voltage
collector-emitter voltage
emitter-base voltage
collector current
peak collector current
peak base current
total power dissipation
single pulse;
t
p
1 ms
single pulse;
t
p
1 ms
T
amb
25
C
[1]
[2]
Conditions
open emitter
open base
open collector
Min
-
-
-
-
-
-
Max
50
45
6
100
200
100
Unit
V
V
V
mA
mA
mA
-
-
-
55
65
280
440
+150
+150
+150
mW
mW
C
C
C
T
j
T
amb
T
stg
[1]
[2]
junction temperature
ambient temperature
storage temperature
Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard
footprint.
Device mounted on an FR4 PCB, 4-layer copper; tin-plated and standard footprint.
500
P
tot
(mW)
400
aaa-017637
(1)
300
(2)
200
100
0
-75
-25
25
75
125
T
j
(°C)
175
(1) FR4 PCB, 4-layer copper, standard footprint
(2) FR4 PCB, standard footprint
Fig 2.
Power derating curves
BC857XQA_SER
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 26 August 2015
4 of 15
Nexperia
BC857XQA series
45 V, 100 mA NPN general-purpose transistors
6. Thermal characteristics
Table 7.
Symbol
R
th(j-a)
Thermal characteristics
Parameter
thermal resistance from junction to ambient
Conditions
in free air
[1]
[2]
Min
-
-
Typ
-
-
Max
446
284
Unit
K/W
K/W
[1]
[2]
Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
Device mounted on an FR4 PCB, 4-layer copper; tin-plated and standard footprint.
10
3
Z
th(j-a)
(K/W)
10
2
duty cycle = 1
0.75
0.50
0.33
0.20
0.10
0.05
10
0.02
aaa-017638
0.01
0
1
10
-5
10
-4
10
-3
10
-2
10
-1
1
10
10
2
t
p
(s)
10
3
FR4 PCB, single-sided copper, tin-plated and standard footprint
Fig 3.
10
3
Z
th(j-a)
(K/W)
10
2
Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
aaa-017639
duty cycle = 1
0.75
0.50
0.33
0.20
0.10
0.05
10
0.02
0
0.01
1
10
-5
10
-4
10
-3
10
-2
10
-1
1
10
10
2
t
p
(s)
10
3
FR4 PCB, 4-layer copper, tin-plated and standard footprint.
Fig 4.
Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
BC857XQA_SER
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 26 August 2015
5 of 15
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