BC817-40-QR NPN general-purpose transistor rated for 45V collector-emitter voltage and 500mA collector current. Housed in a surface-mount SOT-23 (TO-236AB) package.
Mfr Part #:

BC817-40-QR

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 SOT-23 (TO-236AB) package.
Total Stock: 1,690,020 pcs
$ Price Range: $0.03 - $0.26

BC817-40-QR 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
1,639,020 pcs
1639020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
51,000 pcs
51000 pcs On Request 1 On Request On Request 25+ On Request On Request

BC817-40-QR Specifications Quick View

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

BC817-40-QR Description

Short technical summary and product information.

The BC817-40-QR is an NPN general-purpose transistor from Nexperia, part of the BC817-Q series qualified to AEC-Q101 for automotive applications. It features a maximum collector-emitter voltage of 45V and a continuous collector current of 500mA, with a peak current capability of 1A. The DC current gain (hFE) is specified between 250 and 600 at 100mA and 1V VCE, making it suitable for a wide range of switching and amplification tasks.

 

This transistor offers a typical transition frequency of 100MHz and a low collector-emitter saturation voltage of 700mV maximum at 500mA. It is designed for surface-mount assembly in a small SOT-23 (TO-236AB) plastic package, which is ideal for space-constrained designs. The device is rated for operation up to a maximum junction temperature of 150°C and dissipates up to 250mW on a standard FR4 PCB footprint.

 

Applications include general-purpose switching and linear amplification in automotive and industrial electronic circuits. The BC817-40-QR is the tape-and-reel variant of the BC817-40-Q, with a marking code of 6C.

BC817-40-QR Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Series: BC817-Q
Canonical Name: Nexperia BC817-40-QR NPN General-Purpose Transistor
Subcategory: Single NPN

BC817-40-QR Compliance

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

BC817-40-QR Estimated Pricing

Qty Low High
1+ $0.26 $0.26
10+ $0.11 $0.11
100+ $0.06 $0.06
500+ $0.04 $0.04
1,000+ $0.03 $0.03
3,000+ $0.03 $0.03

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

BC817-40-QR Features

  • AEC-Q101 qualified for automotive use.
  • High DC current gain of 250 to 600.
  • Surface-mount SOT-23 (TO-236AB) package.
  • 100MHz typical transition frequency.
  • 45V collector-emitter voltage rating.

BC817-40-QR Applications

  • General-purpose switching and amplification circuits.
  • Automotive electronic control modules.
  • Signal processing and driver stages.
  • Low-power DC-DC converter designs.

BC817-40-QR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the BC817-40-QR?

The maximum collector-emitter voltage (VCEO) is 45V at an ambient temperature of 25°C with the base open.

What is the DC current gain (hFE) of the BC817-40-QR?

The DC current gain (hFE) is between 250 and 600, tested at a collector current of 100mA and a collector-emitter voltage of 1V.

What package is the BC817-40-QR available in?

It is available in a surface-mount SOT-23 (TO-236AB) plastic package.

What is the maximum operating junction temperature?

The maximum operating junction temperature (Tj) is 150°C.

Is the BC817-40-QR RoHS compliant?

The RoHS status is listed as RoHS3 Compliant, but this information is unverified and should be confirmed with the manufacturer.

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