BC817-40 is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Diotec Semiconductor
In Stock: 0
Unit Price: $0.15000
Datasheet

Parametric Equivalent


Diotec Semiconductor
In Stock: 0
Unit Price: $0.17000
Datasheet

Upgrade


Diodes Incorporated
In Stock: 0
Unit Price: $0.37000
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Similar


onsemi
In Stock: 0
Unit Price: $0.15000
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Taiwan Semiconductor Corporation
In Stock: 0
Unit Price: $0.22000
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Taiwan Semiconductor Corporation
In Stock: 0
Unit Price: $0.21000
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Taiwan Semiconductor Corporation
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Unit Price: $0.25000
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Taiwan Semiconductor Corporation
In Stock: 0
Unit Price: $0.19000
Datasheet
Bipolar (BJT) Transistor NPN 45 V 800 mA 100MHz 310 mW Surface Mount SOT-23-3 (TO-236)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

BC817-40

DigiKey Part Number
4878-BC817-40TR-ND - Tape & Reel (TR)
4878-BC817-40CT-ND - Cut Tape (CT)
4878-BC817-40DKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
BC817-40
Description
TRANS NPN 45V 0.8A SOT23-3
Manufacturer Standard Lead Time
9 Weeks
Customer Reference
Detailed Description
Bipolar (BJT) Transistor NPN 45 V 800 mA 100MHz 310 mW Surface Mount SOT-23-3 (TO-236)
Datasheet
 Datasheet
EDA/CAD Models
BC817-40 Models
Product Attributes
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Category
DC Current Gain (hFE) (Min) @ Ic, Vce
250 @ 100mA, 1V
Mfr
Power - Max
310 mW
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Frequency - Transition
100MHz
Part Status
Active
Operating Temperature
-55°C ~ 150°C (TJ)
Transistor Type
Mounting Type
Surface Mount
Current - Collector (Ic) (Max)
800 mA
Package / Case
TO-236-3, SC-59, SOT-23-3
Voltage - Collector Emitter Breakdown (Max)
45 V
Supplier Device Package
SOT-23-3 (TO-236)
Vce Saturation (Max) @ Ib, Ic
700mV @ 50mA, 500mA
Base Product Number
Current - Collector Cutoff (Max)
100nA (ICBO)
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (8)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
BC817-40-AQDiotec Semiconductor04878-BC817-40-AQTR-ND$0.15000Parametric Equivalent
BC817-40R13Diotec Semiconductor04878-BC817-40R13TR-ND$0.17000Parametric Equivalent
BCW66HTADiodes Incorporated0BCW66HTR-ND$0.37000Upgrade
BCW66GLT1Gonsemi0BCW66GLT1GOSTR-ND$0.15000Similar
BC817-16 RFGTaiwan Semiconductor Corporation01801-BC817-16RFGTR-ND$0.22000Similar
In-Stock: 0
3,000 estimated in stock on 12-May-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.14000$0.14
10$0.08500$0.85
100$0.05230$5.23
500$0.03784$18.92
1,000$0.03313$33.13
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,000$0.02711$81.33
6,000$0.02406$144.36
9,000$0.02250$202.50
15,000$0.02075$311.25
21,000$0.01971$413.91
30,000$0.01870$561.00
75,000$0.01647$1,235.25
150,000$0.01510$2,265.00
300,000$0.01394$4,182.00
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.