Transistor BF758 NPN, 0.5A TO-202

Transistor BF758 NPN, 0.5A TO-202

Transistors

Reference: TRBF758

Part.No: BF758

€1.20

In Stock

Immediate Dispatch

The BF758 is a high-voltage NPN Bipolar Junction Transistor (BJT) in a TO-202 package, rated for up to 300V. It was originally designed as a video/line output transistor for the cathode board of CRT televisions and computer monitors.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

BF758 High-Voltage Video Output Transistor - 300V for CRT Cathode Boards

The BF758 is a silicon NPN transistor built to survive the extreme 300V spikes generated on the cathode (video output) board of CRT televisions, computer monitors and arcade cabinet monitors. Its combination of high breakdown voltage and moderate switching speed makes it a classic choice for repairing the RGB video output stage on legacy tube-based displays.

Functions & Applications

Extreme Voltage Rating (300V): Withstands the high B+ voltage spikes present on the CRT neck/cathode board without breaking down.
TO-202 Package: Robust through-hole case that can be bolted or clipped to a small heatsink when driven near its dissipation limit.
CRT Repair Standard: A common replacement part in vintage computer monitor, TV and arcade cabinet cathode board repairs.
Reasonable Switching Speed: 45MHz transition frequency is sufficient for driving RGB video signals at CRT scan rates.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-202
Collector-Emitter Voltage (Vceo)	300V
Collector-Base Voltage (Vcbo)	300V
Max Collector Current (Ic)	0.5A
Power Dissipation (Pd)	2W
Transition Frequency (ft)	45MHz
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the BF758 typically used for?
A: It's a high-voltage NPN transistor originally used as a video/line output transistor on the cathode (RGB) board of CRT TVs, computer monitors and arcade cabinet monitors, where it has to withstand voltage spikes up to 300V.

Q: How does the BF758 differ from the BF759 and BF760?
A: BF758, BF759 and BF760 belong to the same Philips/NXP high-voltage video output family and share the same voltage/current ratings; they are typically graded by hFE (current gain), so check the gain requirement of your specific circuit before substituting one for another.

Notes

This is a legacy part designed for CRT-era electronics (TVs, monitors, arcade cabinets). Stock is intended for repair/restoration of vintage tube-based displays rather than new designs.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: NPN
Transistor Case Style: TO-202

16 other products in the same category:

Transistor AC187 NPN Germanium, TO-1

Transistors

Transistor AC187 NPN Germanium, TO-1

Reference:

TRAC187

The AC187 is a vintage NPN Germanium Bipolar Junction Transistor (BJT) in a TO-1 metal can package. A legendary component in classic audio amplifiers and output stages, prized for its warm, natural tone and complementary pairing with the AC188.

In Stock

Transistor BC517 NPN, 30V, TO-92

Transistors

Transistor BC517 NPN, 30V, TO-92

Reference:

TRBC517

In Stock

Transistor BD138 PNP, 60V, 1.5A, 12.5W, TO-126

Transistors

Power Transistor BD138 PNP, 1.5A TO-126

Reference:

TRBD138

The BD138 is a PNP power BJT in a TO-126 package, rated for 60V/1.5A. Commonly used as a driver or output stage transistor in audio amplifiers, power regulators and motor control circuits.

Upon Request

Power Transistor TIP120 Darlington NPN, 5A TO-220

Power Transistor TIP120 Darlington NPN, 5A TO-220 2

Transistors

Power Transistor TIP120 Darlington NPN, 5A TO-220

STMicroelectronics

Reference:

TRTIP120

The TIP120 is a high-current Darlington NPN transistor in TO-220 package, designed for driving loads up to 5A. With exceptional current gain and low saturation voltage, it easily interfaces microcontroller outputs with motors, relays, solenoids and other power devices.

In Stock

Transistor BF257 NPN, 160V TO-39

Transistors

Transistor BF257 NPN, 160V TO-39

Reference:

TRBF257

The BF257 is a high-voltage NPN Bipolar Junction Transistor (BJT) in a TO-39 metal can package. Designed for CRT display driver circuits and other high-voltage switching applications requiring robust thermal management.

In Stock

Transistor 2SA952 PNP, 0.15A TO-92

Transistors

Transistor 2SA952 PNP, 0.15A TO-92

Reference:

TR2SA952

The 2SA952 is a reliable PNP Bipolar Junction Transistor (BJT) in a TO-92 package. Optimized for small-signal amplification and switching applications in audio circuits, sensor interfaces, and general-purpose DIY electronics.

In Stock

Transistor BF181 NPN, UHF TO-72

Transistor BF181 NPN, UHF TO-72 2

Transistors

Transistor BF181 NPN, UHF TO-72

Reference:

TRBF181

The BF181 is a classic NPN silicon transistor in a TO-72 package, optimized for UHF oscillator and mixer applications. Renowned for stable frequency generation in TV tuner circuits and RF switching stages.

In Stock

Transistor BC214 PNP, 30V, 0.2A, TO-92

Transistors

Transistor BC214 PNP, 0.2A TO-92

Reference:

TRBC214

The BC214 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a TO-92 package, rated for 30V / 0.2A. Suitable for small-signal amplification and low-power switching in classic and hobbyist analog circuits.

In Stock

Transistor BC108 TO-92

Transistor BC108 TO-92 2

Transistors

Transistor BC108 NPN, 0.2A TO-92

Reference:

TRBC108T

The BC108 is a classic NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Optimized for small-signal amplification and low-power switching applications across a wide frequency range, from audio circuits to RF hobbyist projects.

In Stock

Transistor 2N3709

Transistors

Transistor 2N3709 NPN, 30mA TO-92

Reference:

TR2N3709

The 2N3709 is a silicon NPN Bipolar Junction Transistor (BJT) in a TO-92 package, designed for low-level, high-gain audio-frequency amplification and small-signal switching.

Last items in stock

Transistor BC549 NPN, 0.1A TO-92

Transistors

Transistor BC549 NPN, 0.1A TO-92

Reference:

TRBC549

The BC549 is a low-noise NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Engineered for audio amplification, microphone preamps and sensitive signal processing where minimal noise is critical.

Last items in stock

Power Transistor BU2508A NPN, 8A TO-247

Transistors

Power Transistor BU2508A NPN, 8A TO-247

Reference:

TRBU2508A

The BU2508A is a high-voltage NPN power transistor in a TO-247 package, purpose-built as a Line Output Transistor (LOPT) for CRT monitor and television deflection circuits. It drives the high-voltage flyback transformer in horizontal scanning stages.

Last items in stock

Power Transistor AD164 PNP, TO-3

Transistors

Power Transistor AD164 PNP, TO-3

Reference:

TRAD164

The AD164 is a PNP Germanium Power Transistor in a TO-3 package, designed for high-current output stages in vintage amplifiers and industrial power supplies. Excellent thermal stability and rugged construction make it ideal for demanding heavy-duty applications.

In Stock

Transistor BD237 NPN, 80V, 2A, 25W, TO-126

Transistors

Power Transistor BD237 NPN, 2A TO-126

Reference:

TRBD237

The BD237 is an NPN power BJT in a TO-126 package, rated for 80V and 2A. Commonly used in audio amplifier output stages, power switching and driver circuits requiring moderate current handling.

In Stock

Transistor 2N1711

Transistors

Transistor 2N1711

Reference:

TR2N1711

In Stock

Transistor Mosfet N-Channel 41A - IRFZ44N

Transistor Mosfet N-Channel 41A - IRFZ44N 2

Transistors

Power Transistor IRFZ44 N-Channel, 49A TO-220

Reference:

TRIRFZ44

The IRFZ44 is a high-current N-Channel Power MOSFET in a TO-220 package. Designed for high-speed switching and efficient power control in motor drivers, power supplies, and industrial switching applications.

View

Out of Stock

Product added to wishlist

Product added to compare.