BC857xQB-Q series

45 V, 100 mA PNP general-purpose transistor
Rev. 4 — 20 September 2021

Product data sheet

1. General description
PNP general-purpose transistor in an ultra small DFN1110D-3 (SOT8015) leadless SurfaceMounted Device (SMD) plastic package with side-wettable flanks.
Table 1. Product overview
Type number

Package

BC857AQB-Q

NPN complement:

Nexperia

JEDEC

SOT8015

MO-340BA

BC847AQB-Q

BC857BQB-Q

BC847BQB-Q

BC857CQB-Q

BC847CQB-Q

2. Features and benefits
•
•
•
•
•

High power dissipation capability
Suitable for Automatic Optical Inspection (AOI) of solder joint
Smaller footprint compared to conventional leaded SMD packages
Low package height of 0.5 mm
Qualified according to AEC-Q101 and recommended for use in automotive applications

3. Applications••

General-purpose switching and amplification
Space restricted applications

4. Quick reference data
Table 2. Quick reference data
Tamb = 25 °C unless otherwise specified.
SymbolParameter

Conditions

Min

Typ

Max

Unit

VCEO

collector-emitter voltage

open base

-

-

-45

V

IC

collector current

-

-

-100

mA

ICM

peak collector current

single pulse; tp ≤ 1 ms

-

-

-200

mA

hFE

DC current gain
VCE = -5 V; IC = -2 mA

125

-

250

BC857BQB

220

-

475

BC857CQB

420

-

800

BC857AQB

BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor

5. Pinning information
Table 3. Pinning
Pin

SymbolDescription

1

B

base

2

E

emitter3

Ccollector

Simplified outline

Graphic symbol
C

3

B
E

1

2

sym132

Transparent top view

6. Ordering information
Table 4. Ordering information
Type number
Package
BC857AQB-Q
BC857BQB-Q
BC857CQB-Q

Name

Description

Version

DFN1110D-3

plastic leadless extremely thin small outline package withside-wettable flanks (SWF); 3 terminals; 0.65 mm pitch;
body: 1.1 mm x 1.0 mm x 0.48 mm

SOT8015

7. Marking
Table 5. Marking
Type number

Marking code

BC857AQB-Q

A5BC857BQB-Q

A6

BC857CQB-Q

A7

BC857XQB-Q_SER

Product data sheet

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor

8. Limiting values
Table 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Tamb = 25 °C unless otherwise specified.
SymbolParameter

Conditions

Min

Max

Unit

VCBO

collector-base voltage

open emitter

-

-50

V

VCEO

collector-emitter voltage

open base

-

-45

V

VEBO

emitter-base voltage

open collector

-

-6

V

IC

collector current

-

-100

mA

ICM

peak collector current

single pulse; tp ≤ 1 ms

-

-200

mA

IBM

peak base current

single pulse; tp ≤ 1 ms

-

-100

mA

Ptot

total power dissipation

Tamb ≤ 25 °C

[1]

-

340

mW

[2]

-

420

mW

Tj

junction temperature

-

150

°C

Tamb

ambient temperature

-55

150

°C

Tstg

storage temperature

-65

150

°C

[1]
[2]

Device mounted on an FR4 Printed-Circuit-Board (PCB); single-sided; 35 µm copper; tin-plated and standard footprint.
Device mounted on an FR4 PCB; single-sided; 70 µm copper; tin-plated and standard footprint.
aaa-030584

500
Ptot
(mW)
400

(1)

(2)

300

200

100

0
-75

-25

25

75

125
175
Tamb (°C)(1) FR4 PCB; single-sided; 70 µm copper, standard footprint(2) FR4 PCB; single-sided; 35 µm copper, standard footprint
Fig. 1.

Power derating curves DFN1110D-3 (SOT8015)

BC857XQB-Q_SER

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor

9. Thermal characteristics
Table 7. Thermal characteristics
Tamb = 25 °C unless otherwise specified.
SymbolParameter

Conditions

Rth(j-a)thermal resistance from junction to ambientin free air

[1]
[2]

Min

Typ

Max

Unit

[1]

-

-

368

K/W

[2]

-

-

298

K/W

Device mounted on an FR4 PCB; single-sided; 35 µm copper; tin-plated and standard footprint.
Device mounted on an FR4 PCB; single-sided; 70 µm copper; tin-plated and standard footprint.
aaa-030582

103
Zth(j-a)(K/W)
102

duty cycle =
1
0.75
0.50
0.33
0.20

0.10
0.05
0.02

10

0.01
0

1
10-5

10-4

10-3

10-2

10-1

1

10

102

tp (s)

103

FR4 PCB; single-sided; 35 µm copper, standard footprint
Fig. 2.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
aaa-030583

103
duty cycle =Zth(j-a)
(K/W)

1

102

0.50

0.75
0.33

0.20
0.10
0.05
10

0.02

0.01
0

1
10-5

10-4

10-3

10-2

10-1

1

10

102

tp (s)

103

FR4 PCB; single-sided; 70 µm copper, standard footprint
Fig. 3.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values

BC857XQB-Q_SER

Product data sheet

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor

10. Characteristics
Table 8. Characteristics
Tamb = 25 °C unless otherwise specified.
SymbolParameter

Conditions

Min

Typ

Max

Unit

V(BR)CBO

collector-basebreakdown voltage

IC = -100 µA; IE = 0 A

-50

-

-

V

V(BR)CES

collector-emitter peakvoltage

IC = -2 mA; IE = 0 A

-45

-

-

V

V(BR)EBO

emitter-basebreakdown voltage

IE = -100 µA; IC = 0 A

-6

-

-

V

ICBO

collector-base cut-off
current

VCB = -30 V; IE = 0 A

-

-

-15

nA

VCB = -30 V; IE = 0 A; Tj = 150 °C

-

-

-5

μA

IEBO

emitter-base cut-off
current

VEB = -5 V; IC = 0 A

-

-

-100

nA

hFE

DC current gain
VCE = -5 V; IC = -2 mA

125

-

250

BC857BQB-Q

220

-

475

BC857CQB-Q

420

-

800

-

-

-300

mV

BC857AQB-Q

VCEsatcollector-emittersaturation voltage

IC = -10 mA; IB = -0.5 mA
IC = -100 mA; IB = -5 mA

[1]

-

-

-650

mV

VBE

base-emitter voltage

VCE = -5 V ; IC = -2 mA

[2]

-600

-

-750

mV

VCE = -5 V ; IC = -10 mA

[2]

-

-

-820

mV

-

-700

-

mV

-

-850

-

mV

VBEsatbase-emitter saturation IC = -10 mA ; IB = -0.5 mA
voltage
IC = -100 mA ; IB = -5 mA

[1]

fT

transition frequency

VCE = -5 V; IC = -10 mA; f = 100 MHz

100

-

-

MHz

Cc

collector capacitance

VCB = -10 V; IE = ie = 0 A; f = 1 MHz

-

2

-

pF

Ce

emitter capacitance

VEB = -0.5 V; IC = ic = 0 A; f = 1 MHz

-

10

-

pF

NF

noise figure

VCE = -5 V; IC = -200 µA; RS = 2 kΩ; f = 1 kHz;B = 200 Hz

-

-

10

dB

[1]
[2]

pulsed; tp ≤ 300 μs; δ ≤ 0.02
VBE decreases by about 2 mV/K with increasing temperature.

BC857XQB-Q_SER

Product data sheet

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor
aaa-028117

400
hFE
(1)

mgt712- 1200VBE(mV)- 1000

300

(1)

- 800

(2)

200

100

(2)

- 600
(3)

- 400

(3)

- 200
0
-10-1

-1

-10

-102

IC (mA)0- 10- 2

-103

VCE = -5 V
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C
Fig. 4.

- 10- 1

-1

mgt713- 104

Fig. 5.

BC857AQB-Q: Base-emitter voltage as afunction of collector current; typical values

VCEsat(mV)- 1200
VBEsat(mV)- 1000

- 103

- 800

mgt714

(1)
(2)

(3)

- 600
- 400

(1)

- 200

(3) (2)- 10- 10- 1

-1

- 10

- 102

IC (mA)0- 10- 1- 103

IC/ IB= 20(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C
Fig. 6.

Product data sheet

-1

- 10

- 102

IC (mA)- 103

IC/ IB= 20(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

BC857AQB-Q: Collector-emitter saturation
voltage as a function of collector current;
typical values

BC857XQB-Q_SER

- 102
- 103
IC (mA)

VCE = -5 V
(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

BC857AQB-Q: DC current gain as a function ofcollector current; typical values

- 102

- 10

Fig. 7.

BC857AQB-Q: Base-emitter saturation voltage
as a function of collector current; typical values

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor
aaa-028118

600
(1)

hFE

400

mgt716- 1200VBE(mV)- 1000
(1)

- 800

(2)

(2)

- 600
200

(3)

- 400

(3)

- 200
0
-10-1

-1

-10

-102

IC (mA)0- 10- 2

-103

VCE = -5 V
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C
Fig. 8.

- 10- 1

-1

- 10

- 102
- 103
IC (mA)

VCE = -5 V
(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

BC857BQB-Q: DC current gain as a function ofcollector current; typical values
mgt717- 104

Fig. 9.

BC857BQB-Q: Base-emitter voltage as afunction of collector current; typical values

VCEsat(mV)- 1200
VBEsat(mV)- 1000

- 103

- 800

mgt718

(1)
(2)

- 600
(3)

- 102

- 400
(1)

- 200

(3) (2)- 10- 10- 1

-1

- 10

- 102

IC (mA)- 103

IC/ IB= 20(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C

Product data sheet

-1

- 10

- 102

IC (mA)- 103

IC/ IB= 20(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

Fig. 10. BC857BQB-Q: Collector-emitter saturation
voltage as a function of collector current;
typical values

BC857XQB-Q_SER

0- 10- 1

Fig. 11. BC857BQB-Q: Base-emitter saturation voltage
as a function of collector current; typical values

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor
aaa-028119

1000
hFE

(1)

800

mgt720- 1200VBE(mV)- 1000
(1)

- 800
600

(2)

(2)

- 600
400

200

0
-10-1

(3)

- 400

(3)

- 200

-1

-10

-102

IC (mA)-103

VCE = -5 V
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C

0- 10- 1

-1

- 10

- 102

- 103
IC (mA)

VCE = -5 V
(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

Fig. 12. BC857CQB-Q: DC current gain as a function ofcollector current; typical values
mgt721- 104

Fig. 13. BC857CQB-Q: Base-emitter voltage as afunction of collector current; typical values

VCEsat(mV)- 1200
VBEsat(mV)- 1000

- 103

- 800

mgt722

(1)
(2)

- 600
(3)

- 102

- 400
(1)

- 200
(3) (2)- 10- 10- 1

-1

- 10

- 102

IC (mA)- 103

IC/ IB= 20(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C

0- 10- 1

-1

- 10

- 102

IC (mA)- 103

IC/ IB= 20(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

Fig. 14. BC857CQB-Q: Collector-emitter saturation
voltage as a function of collector current;
typical values

Fig. 15. BC857CQB-Q: Base-emitter saturation voltage
as a function of collector current; typical values

11. Test information
Quality information
This product has been qualified in accordance with the Automotive Electronics Council (AEC)
standard Q101 - Stress test qualification for discrete semiconductors, and is suitable for use inautomotive applications.

BC857XQB-Q_SER

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor

12. Package outline
1.1

0.50
0.44

0.65
0.30
0.22
1

2

0.27
0.20

0.04
max

0.20
3

0.48
0.40

0.95
0.87
Dimensions in mm

1.0

0.22
0.10
21-06-29

Fig. 16. Package outline DFN1110D-3 (SOT8015)

BC857XQB-Q_SER

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor

13. Soldering
Footprint information for reflow soldering of DFN1110D-3 package

SOT8015
1.4

0.45

0.2

0.35

0.3

0.25
0.65

0.6

0.5

0.4

0.12 0.22
1.8
0.34 0.44
0.88 0.78 0.68
0.34

0.34

0.2
0.3
0.4
0.8

occupied area

solder resist

solder lands

solder paste

0.9
1.0
recommended stencil thickness: 0.1 mm

Dimensions in mm
Issue date

19-11-27

sot8015_fr

Fig. 17. Reflow soldering footprint for DFN1110D-3 (SOT8015)

BC857XQB-Q_SER

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BC857xQB-Q series

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45 V, 100 mA PNP general-purpose transistor

14. Revision history
Table 9. Revision history
Data sheet ID
Release date

Data sheet status

Change notice

Supersedes

BC857XQB-Q_SER v.4 20210920

Product data sheet-

BC857XQB-Q_SER v.3-

BC857XQB-Q_SER v.2

Modifications:•Characteristics: Ce adjusted

BC857XQB-Q_SER v.3 20210521

Product data sheet

BC857XQB-Q_SER v.2
BC857XQB-Q_SER v.1 20210222

BC857XQB-Q_SER

Product data sheet

BC857XQB-Q_SER v.1
Product data sheet-

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BC857xQB-Q series

Nexperia

45 V, 100 mA PNP general-purpose transistor
equipment, nor in applications where failure or malfunction of an Nexperia
product can reasonably be expected to result in personal injury, death orsevere property or environmental damage. Nexperia and its suppliers accept
no liability for inclusion and/or use of Nexperia products in such equipment orapplications and therefore such inclusion and/or use is at the customer's own
risk.

15. Legal information
Data sheet status
Document status[1][2]

Product
status [3]Definition

Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of thisdocument, and as such is not complete, exhaustive or legally binding.

Objective [short]data sheet

Development

This document contains data fromthe objective specification for
product development.

Preliminary [short]data sheet

Qualification

This document contains data fromthe preliminary specification.

Applications — Applications that are described herein for any of theseproducts are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification.

Product [short]data sheet

Production

This document contains the productspecification.

[1]
[2]
[3]

Please consult the most recently issued document before initiating orcompleting a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may havechanged since this document was published and may differ in case ofmultiple devices. The latest product status information is available on
the internet at https://www.nexperia.com.

Definitions
Draft — The document is a draft version only. The content is still underinternal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included hereinand shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheetwith the same product type number(s) and title. A short data sheet isintended for quick reference only and should not be relied upon to containdetailed and full information. For detailed and full information see the relevant
full data sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, thefull data sheet shall prevail.
Product specification — The information and data provided in a Productdata sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement bevalid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.

Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy
or completeness of such information and shall have no liability for theconsequences of use of such information. Nexperia takes no responsibility
for the content in this document if provided by an information source outsideof Nexperia.
In no event shall Nexperia be liable for any indirect, incidental, punitive,
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profits, lost savings, business interruption, costs related to the removalor replacement of any products or rework charges) whether or not suchdamages are based on tort (including negligence), warranty, breach ofcontract or any other legal theory.

Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia accepts no liability forany assistance with applications or customer product design. It is customer’ssole responsibility to determine whether the Nexperia product is suitableand fit for the customer’s applications and products planned, as well as
for the planned application and use of customer’s third party customer(s).
Customers should provide appropriate design and operating safeguards tominimize the risks associated with their applications and products.
Nexperia does not accept any liability related to any default, damage, costs
or problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party
customer(s). Customer is responsible for doing all necessary testing for thecustomer’s applications and products using Nexperia products in order toavoid a default of the applications and the products or of the application or
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liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or theCharacteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
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sold subject to the general terms and conditions of commercial sale, as
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for the products described herein shall be limited in accordance with theTerms and conditions of commercial sale of Nexperia.
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Suitability for use in automotive applications — This Nexperia producthas been qualified for use in automotive applications. Unless otherwise
agreed in writing, the product is not designed, authorized or warranted tobe suitable for use in life support, life-critical or safety-critical systems or

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45 V, 100 mA PNP general-purpose transistor

Contents
1. General description...................................................... 1
2. Features and benefits.................................................. 1
3. Applications.................................................................. 1
4. Quick reference data....................................................1
5. Pinning information......................................................2
6. Ordering information....................................................2
7. Marking.......................................................................... 2
8. Limiting values............................................................. 3
9. Thermal characteristics............................................... 4
10. Characteristics............................................................ 5
11. Test information.......................................................... 8
12. Package outline.......................................................... 9
13. Soldering................................................................... 10
14. Revision history........................................................11
15. Legal information......................................................12© Nexperia B.V. 2021. All rights reserved

For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 20 September 2021

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