BC856W; BC857W; BC858W
65 V, 100 mA PNP general-purpose transistors
Rev. 4 — 10 July 2023

Product data sheet

1. General description
PNP general-purpose transistors in a very small SOT323 (SC-70), Surface-Mounted Device (SMD)
plastic package.
Table 1. Product overview
Type number
Package
BC856W

NPN complement

Nexperia

JEDEC

SOT323SC-70

BC846W

BC856AWBC846AWBC856BW

BC846BW

BC857W

BC847W

BC857AWBC847AWBC857BW

BC847BW

BC857CW

BC847CW

BC858W

BC848W

2. Features and benefits••

Low current (max. 100 mA)
Low voltage (max. 65 V)

3. Applications•

General-purpose switching and amplification

BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

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

BC856W

-

-

-65

V

BC857W

-

-

-45

V

BC858W

-

-

-30

V

IC

collector current

-

-

-100

mA

ICM

peak collector current

-

-

-200

mA

hFE

DC current gain
BC856W

125

-

475

BC857W; BC858W

125

-

800

125

-

250

BC856BW; BC857BW

220

-

475

BC857CW

420

-

800

BC856AW; BC857AW

VCE = 5 V; IC = 2 mA

5. Pinning information
Table 3. Pinning information
Pin
SymbolDescrition

1

B

base

2

E

emitter3

Ccollector

Simlified outline

Graphic symbol

3

C
B
E

sym132

1

2

6. Ordering information
Table 4. Ordering information
Type number
Package
BC856W

Name

Description

VersionSC-70

plastic surface-mounted package; 3 leads

SOT323BC856AWBC856BW
BC857W
BC857AWBC857BW
BC857CW
BC858W

BC856W_BC857W_BC858W

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Product data sheet

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

7. Marking
Table 5. Marking codes
Type number

Marking code

BC856W[1]

3D%

BC856AW[1]

3A%

BC856BW[1]

3B%

BC857W[1]

3H%

BC857AW[1]

3E%

BC857CW[1]

3G%

BC858W

[1]

3M%

[1]

% = placeholder for manufacturing site code

8. Limiting values
Table 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
SymbolParameter

VCBO

collector-base voltage

VCEO

Conditions

Min

Max

Unit

BC856W--80

V

BC857W--50

V

BC858W--30

V

BC856W--65

V

BC857W--45

V

BC858W

-

-30

V

-

-5

V

open emittercollector-emitter voltage

open base

VEBO

emitter-base voltage

ICcollector current

-

-100

mA

ICM

peak collector current

-

-200

mA

IBM

peak base current

-

-200

mA

Ptot

total power dissipation

[1] -

200

mW

Tj

junction temperature

-

150

°C

Tamb

ambient temperature

-65

150

°C

Tstg

storage temperature

-65

150

°C

[1]

open collector

Tamb ≤ 25 °C

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

BC856W_BC857W_BC858W

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Product data sheet

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

9. Thermal characteristics
Table 7. Thermal characteristics
SymbolParameter

Conditions

Rth(j-a)in free air[1]thermal resistance fromjunction to ambient

Min
[1] -

Typ

Max

Unit

-

625

K/W

Device mounted on an FR4 PCB; single-sided; 35 µm copper; tin-plated and standard footprint.
103

aaa-028969

duty cycle =1

Zth(j-a)
(K/W)

0.5

102

0.75
0.33

0.2
0.1
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, 35 μm copper, tin-plated and standard footprint
Fig. 1.

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

BC856W_BC857W_BC858W

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Product data sheet

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

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

Conditions

V(BR)CBO

collector-base breakdown voltage
BC856W
BC857W

IC = -100 µA; IE = 0 A

BC858W
V(BR)CEO

Min

Typ

Max

Unit

-80

-

-

V

-50

-

-

V

-30

-

-

V

-65

-

-

V

-45

-

-

V

collector-emitter breakdown voltage
BC856W
BC857W

IC = -2 mA; IB = 0 A

-30

-

-

V

V(BR)EBO

BC858Wemitter-basebreakdown voltage

IC = 0 A; IE = -100 µA

-5

-

-

V

ICBO

collector-basecut-off current

VCB = -30 V; IE = 0 A

-

-1

-15

nA

VCB = -30 V; IE = 0 A; Tj = 150 °C

-

-

-4

µA

IEBO

emitter-basecut-off current

VEB = -5 V; IC = 0 A

-

-

-100

nA

hFE

DC current gain
125

-

475

125

-

800

125

-

250

BC857BW; BC858BW

220

-

475

BC857CW

420

-

800

IC = -10 mA; IB = -0.5 mA

-

-75

-300

mV

BC856W
BC857W; BC858W
BC856AW; BC857AW

VCE = -5 V; IC = -2 mA

VCEsatcollector-emittersaturation voltage

IC = -100 mA; IB = -5 mA

[1] -

-250

-600

mV

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

[1] -

-700

-

mV

[1] -

-850

-

mV

VBE

base-emitter voltage

VCE = -5 V; IC = -2 mA

-600

-650

-750

mV

VCE = -5 V; IC = -10 mA

-

-

-820

mV

Cc

collector capacitance

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

-

3

-

pF

Ce

collector capacitance

VEB = -5 V; IC = ic = 0 A; f = 1 MHz

-

12

-

pF

fT

transition frequency

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

100

-

-

MHz

NF

noise figure

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

-

2

10

dB

[1]

pulsed; tp ≤ 300 μs; δ ≤ 0.02

BC856W_BC857W_BC858W

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Product data sheet

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors
aaa-028117

400

mgt712- 1200VBE(mV)- 1000

hFE
(1)

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. 2.

- 10- 1

-1

mgt713- 104

Fig. 3.

BC857AW: Base-emitter voltage as a function ofcollector current; typical values

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

- 103

- 800

mgt714

(1)
(2)

(3)

- 600
- 400

(1)

- 200

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

Fig. 4.

-1

- 102
- 103
IC (mA)

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

BC857AW: DC current gain as a function ofcollector current; typical values

- 102

- 10

- 10

- 102

IC (mA)- 103

0- 10- 1

-1

- 10

- 102

IC (mA)- 103

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

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

BC857AW: Collector-emitter saturation voltage Fig. 5.
as a function of collector current; typical values

BC857AW: Base-emitter saturation voltage as afunction of collector current; typical values

BC856W_BC857W_BC858W

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors
aaa-028118

600

mgt716- 1200VBE(mV)- 1000

(1)

hFE

400

(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. 6.

- 10- 1

-1

- 10

- 102
- 103
IC (mA)

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

BC857BW: DC current gain as a function ofcollector current; typical values
mgt717- 104

Fig. 7.

BC857BW: Base-emitter voltage as a function ofcollector 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

Fig. 8.

-1

- 10

- 102

IC (mA)- 103

0- 10- 1

-1

- 10

- 102

IC (mA)- 103

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

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

BC857BW: Collector-emitter saturation voltage Fig. 9.
as a function of collector current; typical values

BC857BW: Base-emitter saturation voltage as afunction of collector current; typical values

BC856W_BC857W_BC858W

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Product data sheet

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors
aaa-028119

1000
hFE

mgt720- 1200VBE(mV)- 1000

(1)

800

(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. 10. BC857CW: DC current gain as a function ofcollector current; typical values
mgt721- 104

Fig. 11. BC857CW: Base-emitter voltage as a function ofcollector 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

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

- 10

- 102

IC (mA)- 103

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. 12. BC857CW: Collector-emitter saturation voltage Fig. 13. BC857CW: Base-emitter saturation voltage as a
as a function of collector current; typical values
function of collector current; typical values

BC856W_BC857W_BC858W

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

11. Package outline
Table 9. Package outline
2.2
1.8

1.1
0.8
0.45
0.15

3

2.2 1.35
2.0 1.15

1

2
1.3

0.4
0.3

0.25
0.10

Dimensions in mm

04-11-04

Fig. 14. Package outline SOT323 (SC-70)

BC856W_BC857W_BC858W

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

12. Soldering
Table 10. Soldering
2.65
1.85
1.325
solder lands
solder resist

2

2.35

0.6
(3×)

3

solder paste

1.3

occupied area

0.5
(3×)

1

Dimensions in mm
0.55
(3×)

sot323_fr

Fig. 15. Reflow soldering footprint SOT323 (SC-70)
4.6
2.575
1.425
(3×)
solder lands
solder resist
occupied area
1.8

3.65 2.1
09(2×)

Dimensions in mm
preferred transport
direction during soldering

sot323_fw

Fig. 16. Wave soldering footprint SOT323 (SC-70)

BC856W_BC857W_BC858W

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Product data sheet

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BC856W; BC857W; BC858W

Nexperia

65 V, 100 mA PNP general-purpose transistors

13. Revision history
Table 11. Revision history
Document ID

Release date

Data sheet status

ChangenoticeSupersedes

BC856W_BC857W_BC858W
v.4

20230710

Product data sheet-

BC856W_BC857W_BC858W
v.3

Modifications:•

BC856W_BC857W_BC858W
v.3

20230701

Product data sheet-

BC856W_BC857W_BC858W
v.2

BC856W_BC857W_BC858W
v.2

20020204

Product data sheet-

BC856W_BC857W_BC858W
v.1

BC856W_BC857W_BC858W
v.1

19990412

Product data sheet--

Quick reference data: typos corrected

BC856W_BC857W_BC858W

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Nexperia

65 V, 100 mA PNP general-purpose transistors

14. Legal information

injury, death or severe property or environmental damage. Nexperia and its
suppliers accept no liability for inclusion and/or use of Nexperia products insuch equipment or applications and therefore such inclusion and/or use is at
the customer’s own risk.

Data sheet status

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.

Document status[1][2]

Product
status [3]Definition

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.

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.
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Notwithstanding any damages that customer might incur for any reason
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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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to information published in this document, including without limitation
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warranted to be suitable for use in life support, life-critical or safety-criticalsystems or equipment, nor in applications where failure or malfunctionof an Nexperia product can reasonably be expected to result in personal

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.
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
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
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accepts no liability for inclusion and/or use of non-automotive qualified
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In the event that customer uses the product for design-in and use inautomotive applications to automotive specifications and standards,
customer (a) shall use the product without Nexperia’s warranty of the
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between the translated and English versions.

Trademarks
Notice: All referenced brands, product names, service names andtrademarks are the property of their respective owners.

BC856W_BC857W_BC858W

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Nexperia

65 V, 100 mA PNP general-purpose transistors

Contents
1. General description...................................................... 1
2. Features and benefits.................................................. 1
3. Applications.................................................................. 1
4. Quick reference data....................................................2
5. Pinning information......................................................2
6. Ordering information....................................................2
7. Marking.......................................................................... 3
8. Limiting values............................................................. 3
9. Thermal characteristics............................................... 4
10. Characteristics............................................................ 5
11. Package outline.......................................................... 9
12. Soldering................................................................... 10
13. Revision history........................................................11
14. Legal information......................................................12© Nexperia B.V. 2023. 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: 10 July 2023

BC856W_BC857W_BC858W

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13 / 13