Datasheets
BC817-40 by:
STMicroelectronics
Allegro MicroSystems LLC
AnBon Semi
Bytesonic Corporation
Central Semiconductor Corp
Comchip Technology Corporation Ltd
Continental Device India Ltd
DC Components Co Ltd
Diodes Incorporated
Diotec Semiconductor AG
ElecSuper Electronics
EVVO Semiconductor
Fairchild Semiconductor Corporation
FOJAN
Formosa Microsemi Co Ltd
Foshan Blue Rocket Electronics Co Ltd
Freescale Semiconductor
FuxinSemi
Galaxy Microelectronics
Galaxy Semi-Conductor Co Ltd
Guangdong Hottech Industrrial Co
Guangdong Kexin Industrial Co Ltd
HXY
Infineon Technologies AG
ITT Corporation
ITT Interconnect Solutions
Jiangsu Changjiang Electronics Technology Co Ltd
KEC
Kingtronics International Company
Kodenshi Corporation
Kodenshi Sensing
Lite-On Semiconductor Corporation
LRC Leshan Radio Co Ltd
Luguang Electronic Technology Co Ltd
MDD (Microdiode Electronics)
Micro Commercial Components
Motorola Mobility LLC
Motorola Semiconductor Products
MSKSEMI
National Semiconductor Corporation
Nexperia
North American Philips Discrete Products Div
NXP Semiconductors
onsemi
PanJit Semiconductor
Philips Semiconductors
Rectron Semiconductor
Rochester Electronics LLC
ROHM Semiconductor
Samsung Semiconductor
Secos Corporation
Semtech Electronics Limited
Shandong Yiguang Electronic Joint Stock Co Ltd
Shanghai Lunsure Electronic Technology Co Ltd
Shenzhen City Xiangyunfeiwu Technology Co Ltd
Shikues Semiconductor
Siemens
SLKOR
SPC Multicomp
STMicroelectronics
Surge Components Inc
Suzhou Good-Ark Electronics Co Ltd
SynSemi Inc
Taitron Components Inc
Taiwan Semiconductor
TDK Micronas GmbH
Texas Instruments
TWGMC
UMW
Unisonic Technologies Co Ltd
Vishay Intertechnologies
Vishay Semiconductors
Vishay Sprague
WEITRON INTERNATIONAL CO., LTD.
Weitronic Enterprise Co Ltd
YAGEO Corporation
Yangzhou Yangjie Electronics Co Ltd
Zetex / Diodes Inc
Not Found

500mA, 45V, NPN, Si, SMALL SIGNAL TRANSISTOR, PLASTIC, SOT-23, 3 PIN

Part Details for BC817-40 by STMicroelectronics

Results Overview of BC817-40 by STMicroelectronics

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

BC817-40 Information

BC817-40 by STMicroelectronics is a Small Signal Bipolar Transistor.
Small Signal Bipolar Transistors are under the broader part category of Transistors.

A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.

Price & Stock for BC817-40

Part # Distributor Description Stock Price Buy
Bristol Electronics   2000
RFQ
Quest Components TRANSISTOR,BJT,NPN,45V V(BR)CEO,500MA I(C),TO-236AA 3938
  • 1 $0.1020
  • 132 $0.0638
  • 785 $0.0459
$0.0459 / $0.1020 Buy Now
Quest Components TRANSISTOR,BJT,NPN,45V V(BR)CEO,500MA I(C),TO-236AA 1600
  • 1 $0.0945
  • 318 $0.0315
  • 1,588 $0.0189
$0.0189 / $0.0945 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 1730
  • 1 $0.3800
  • 100 $0.2900
  • 1,000 $0.2500
$0.2500 / $0.3800 Buy Now

Part Details for BC817-40

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BC817-40 Part Data Attributes

BC817-40 STMicroelectronics
Buy Now Datasheet
Compare Parts:
BC817-40 STMicroelectronics 500mA, 45V, NPN, Si, SMALL SIGNAL TRANSISTOR, PLASTIC, SOT-23, 3 PIN
Select a part to compare:
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOT-23
Package Description PLASTIC, SOT-23, 3 PIN
Pin Count 3
Reach Compliance Code compliant
ECCN Code EAR99
Samacsys Manufacturer STMicroelectronics
Collector Current-Max (IC) 0.5 A
Collector-Emitter Voltage-Max 45 V
Configuration SINGLE
DC Current Gain-Min (hFE) 250
JESD-30 Code R-PDSO-G3
JESD-609 Code e3
Moisture Sensitivity Level 1
Number of Elements 1
Number of Terminals 3
Operating Temperature-Max 150 °C
Package Body Material PLASTIC/EPOXY
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Polarity/Channel Type NPN
Power Dissipation-Max (Abs) 0.25 W
Qualification Status Not Qualified
Surface Mount YES
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Transistor Application SWITCHING
Transistor Element Material SILICON
Transition Frequency-Nom (fT) 100 MHz

Alternate Parts for BC817-40

This table gives cross-reference parts and alternative options found for BC817-40. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BC817-40, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
BC817-40 Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, SOT-23, 3 PIN BC817-40 vs BC817-40
BC817-40 Samsung Semiconductor Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, SOT-23, 3 PIN BC817-40 vs BC817-40
BC817-40 Vishay Semiconductors Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-236AB, PLASTIC PACKAGE-3 BC817-40 vs BC817-40
Part Number Manufacturer Composite Price Description Compare
BC817-40 Continental Device India Ltd Check for Price Small Signal Bipolar Transistor, 0.5A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, SOT-23, 3 PIN BC817-40 vs BC817-40
BC817-40S62Z Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, SOT-23, 3 PIN BC817-40 vs BC817-40S62Z
BC81740MTF Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, LEAD FREE, SOT-23, 3 PIN BC817-40 vs BC81740MTF
BC817-40 TDK Micronas GmbH Check for Price Small Signal Bipolar Transistor, 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-236 BC817-40 vs BC817-40
BC817-40-TP Micro Commercial Components $0.0418 Small Signal Bipolar Transistor, 0.5A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, ROHS COMPLIANT, PLASTIC PACKAGE-3 BC817-40 vs BC817-40-TP
BC817-40 Lite-On Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.5A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, GREEN, PLASTIC PACKAGE-3 BC817-40 vs BC817-40
BC817-40D87Z Texas Instruments Check for Price 1500mA, 45V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-236AB BC817-40 vs BC817-40D87Z
BC817-40 Micro Commercial Components Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, PLASTIC PACKAGE-3 BC817-40 vs BC817-40
BC81740NMMTF Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.8A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, LEAD FREE, SOT-23, 3 PIN BC817-40 vs BC81740NMMTF
BC817-40-TP-HF Micro Commercial Components Check for Price Small Signal Bipolar Transistor, BC817-40 vs BC817-40-TP-HF

BC817-40 Related Parts

BC817-40 Frequently Asked Questions (FAQ)

  • The maximum operating temperature range for the BC817-40 is -55°C to 150°C.

  • Yes, the BC817-40 can be used as a switch, but it's not recommended for high-frequency switching applications due to its relatively slow switching time.

  • The maximum collector current rating for the BC817-40 is 500 mA.

  • No, the BC817-40 is not suitable for high-voltage applications, as its maximum collector-emitter voltage rating is 40V.

  • Yes, the BC817-40 can be used in a linear amplifier circuit, but it's not recommended for high-gain or high-frequency applications due to its limited bandwidth.