BF259 NPN high voltage transistor designed for video output stages, class A audio output, and horizontal deflection drivers. Features VCEO of 300V, collector current of 100mA, and DC current gain of 25 minimum.
Mfr Part #:

BF259

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
NPN high voltage transistor designed for video output stages, class A audio output, and horizontal deflection drivers. Features VCEO of 300V, collector current of 100mA, and DC current gain of 25 minimum.
Total Stock: 3,742 pcs
$ Price Range: $0.28

BF259 Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,566 pcs
3566 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
176 pcs
176 pcs On Request 1 On Request On Request On Request On Request On Request

BF259 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Collector Cutoff Current
Collector Peak Current
Collector-Base Voltage (VCBO)
Collector-Emitter Voltage (VCEO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter-Base Voltage (VEBO)
Frequency
Mounting Type
Operating Temperature
Power
Reverse Capacitance
Storage Temperature
Supplier Device Package
Thermal Resistance - Junction to Case
Thermal Resistance Junction-to-Ambient
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BF259 Description

Short technical summary and product information.

BF259 is a silicon planar epitaxial NPN transistor from STMicroelectronics, housed in a Jedec TO-39 metal case. It is specifically designed for video output stages in CTV and MTV sets, class A audio output stages, and drivers for horizontal deflection circuits.

 

The device offers a collector-emitter voltage (VCEO) of 300V and a collector current rating of 100mA DC (200mA peak). It provides a DC current gain (hFE) of 25 minimum at 30mA collector current and 10V VCE, with a transition frequency of 90MHz typical. The collector-emitter saturation voltage is 1V maximum at 30mA and 6mA base current.

 

The transistor comes in a through-hole mounting TO-205AD/TO-39-3 metal can package with a supplier device package of TO-39. It has a maximum power dissipation of 5W at an ambient temperature up to 50°C, and an operating junction temperature of 200°C.

BF259 Quick Information

Product Type: Bipolar Transistor - Single
Series: BF257, BF258, BF259
Canonical Name: BF259 NPN High Voltage Transistor
Subcategory: NPN High Voltage Transistor

BF259 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 3
REACH Status: REACH Unaffected

BF259 Estimated Pricing

Qty Low High
1,500+ $0.28 $0.28

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

BF259 Features

  • NPN epitaxial transistor in TO-39 metal case.
  • Collector-emitter voltage rating of 300V.
  • DC current gain of 25 minimum at 30mA.
  • Transition frequency of 90MHz typical.
  • Maximum power dissipation of 5W.

BF259 Applications

  • Video output stages for CTV and MTV sets.
  • Class A audio output stages.
  • Drivers for horizontal deflection circuits.
  • High-voltage switching applications.
  • General purpose linear amplifier circuits.

BF259 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of BF259?

The VCEO is 300V minimum.

What is the package of BF259?

The BF259 is available in TO-205AD/TO-39-3 metal can package (through-hole).

What is the operating temperature range?

The junction temperature can reach up to 200°C, with storage range -55 to 200°C.

Is BF259 RoHS compliant?

According to available data, BF259 is RoHS3 compliant, but this status is unverified.

What is the maximum collector current?

The DC collector current is 100mA maximum, with a peak current of 200mA.

What is the power dissipation of BF259?

The total power dissipation is 5W at ambient temperature up to 50°C.

What is the DC current gain (hFE) of BF259?

The minimum hFE is 25 at IC=30mA, VCE=10V.

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