BF840 The Nexperia BF840 is an NPN medium frequency transistor designed for low current and low voltage applications. It is housed in a SOT23 plastic package.
Mfr Part #:

BF840

Available from 1 distributors
Mfr Name: Nexperia USA Inc.
Nexperia USA Inc.
The Nexperia BF840 is an NPN medium frequency transistor designed for low current and low voltage applications. It is housed in a SOT23 plastic package.
✓ Total Stock: 3,000 pcs
$ Price Range: $0.45

BF840 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,000 pcs
3000 pcs On Request 1 On Request On Request On Request On Request On Request

BF840 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Industrial Grade
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BF840 Description

Short technical summary and product information.

The Nexperia BF840 is an NPN medium frequency transistor suitable for applications requiring low current and low voltage operation. It features a maximum collector current of 25 mA and a maximum collector-emitter voltage of 40 V.

 

This transistor is supplied in a compact SOT23 plastic package, making it suitable for surface mounting. Its characteristics lend themselves to use in AM mixers and IF amplifiers within AM/FM receivers.

 

The operating temperature range for the BF840 is -65 °C to +150 °C, with a storage temperature range also spanning -65 °C to +150 °C. The junction temperature is rated up to 150 °C. The thermal resistance from junction to ambient is 5 K/mW when mounted on an FR4 printed-circuit board.

BF840 Quick Information

Product Type: NPN Transistor
Canonical Name: BF840 NPN Medium Frequency Transistor
Subcategory: NPN

BF840 Compliance

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

BF840 Estimated Pricing

Qty Low High
1+ $0.45 $0.45

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

BF840 Features

  • NPN medium frequency transistor
  • Low current up to 25 mA
  • Low voltage up to 40 V
  • SOT23 surface mount package
  • Suitable for AM/FM receiver applications

BF840 Applications

  • Suitable for AM/FM receiver IF amplifiers.
  • Used in low-voltage, low-current switching applications.
  • Ideal for RF mixer circuits in communication devices.
  • Applicable in industrial signal processing circuits.

BF840 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the BF840 transistor?

The maximum collector-emitter voltage (VCEO) for the BF840 transistor is 40 V.

What is the maximum collector current for the BF840 transistor?

The maximum DC collector current (IC) for the BF840 transistor is 25 mA.

What type of package is the BF840 transistor supplied in?

The BF840 transistor is supplied in a SOT23 plastic surface mounted package.

What are the applications for the BF840 transistor?

The BF840 transistor is used in AM mixers and IF amplifiers in AM/FM receivers.

What is the operating temperature range for the BF840 transistor?

The operating ambient temperature range for the BF840 transistor is -65 °C to +150 °C.

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