BC817K-40HR NPN general-purpose transistor rated for 45V collector-emitter voltage and 500mA collector current. Housed in a surface-mount SOT23 (TO-236AB) package.
Mfr Part #:

BC817K-40HR

Available from 2 distributors
Mfr Name: Nexperia USA Inc.
Nexperia USA Inc.
NPN general-purpose transistor rated for 45V collector-emitter voltage and 500mA collector current. Housed in a surface-mount SOT23 (TO-236AB) package.
✓ Total Stock: 15,020 pcs
$ Price Range: $0.07 - $0.34

BC817K-40HR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
10,020 pcs
10020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request On Request

BC817K-40HR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BC817K-40HR Description

Short technical summary and product information.

The BC817K-40HR is an NPN general-purpose transistor from Nexperia, part of the BC817K series. It is designed for general-purpose switching and amplification applications. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 45V, a maximum collector current (IC) of 500mA, and a peak collector current (ICM) of 1A. The DC current gain (hFE) ranges from 250 to 600 at VCE=1V and IC=100mA. The transistor features a maximum power dissipation of 350mW when mounted on a standard FR4 PCB. It is housed in a small SOT23 (TO-236AB) surface-mount plastic package, making it suitable for compact designs. The device is AEC-Q101 qualified, indicating suitability for automotive applications. The operating junction temperature range is -55°C to 150°C.

BC817K-40HR Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Series: BC817K
Canonical Name: BC817K-40HR NPN General-Purpose Transistor
Subcategory: Single Transistors

BC817K-40HR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BC817K-40HR Estimated Pricing

Qty Low High
1+ $0.34 $0.34
10+ $0.20 $0.20
100+ $0.12 $0.12
500+ $0.09 $0.09
1,000+ $0.08 $0.08
3,000+ $0.07 $0.07

Estimated market price range - modelled values for guidance only, not live distributor offers.

BC817K-40HR Features

  • NPN general-purpose transistor with 45V VCEO rating.
  • Collector current capability up to 500mA.
  • DC current gain range of 250 to 600.
  • Surface-mount SOT23 package for compact designs.
  • AEC-Q101 qualified for automotive applications.

BC817K-40HR Applications

  • General-purpose switching circuits.
  • Signal amplification in audio and control systems.
  • Automotive electronic modules.
  • Portable and battery-powered devices.

BC817K-40HR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BC817K-40HR?

45V.

What package does the BC817K-40HR come in?

SOT23 (TO-236AB) surface-mount package.

What is the operating temperature range?

-55°C to 150°C junction temperature.

Is the BC817K-40HR RoHS compliant?

Yes, it is listed as RoHS3 compliant (unverified).

What is the DC current gain (hFE) of the BC817K-40HR?

250 to 600 at VCE=1V, IC=100mA.

What is the maximum collector current?

500mA continuous, 1A peak.

What is the power dissipation rating?

350mW on FR4 PCB at 25°C ambient.

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