Skip to the content
PCBKitNew board
BU508A on a board, in 3D

BU508A

SPTECH

1 NPN 125W 1V 30 5V 700V 7MHz 8A NPN TO-3PN Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSCsptech/BU508A
Category
Bipolar (BJT)
Package
TO-3PN
Pins
3

Overview

The BU508A is a bipolar made by SPTECH in a TO-3PN package with 3 pins. 1 NPN 125W 1V 30 5V 700V 7MHz 8A NPN TO-3PN Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1B_2C_3E, from PCBKit's generic symbols) and its footprint (EasyEDA_Cloud:TO-3PN_L15.8-W5.0-P5.45-L, from EasyEDA), ready for a KiCad board. 1 are in stock at JLCPCB (part C480155). 1 open-source board in 1 repository on GitHub use it.

Symbol

Pinmap_Generic:Q_NPN_1B_2C_3EFrom PCBKit's generic symbols

Footprint

123
EasyEDA_Cloud:TO-3PN_L15.8-W5.0-P5.45-LFrom EasyEDA

Parameters

9
Collector - Emitter Voltage VCEO
700V
Current - Collector(Ic)
8A
DC Current Gain
30
Emitter-Base Voltage(Vebo)
5V
Number
1 NPN
Pd - Power Dissipation
125W
Transition frequency(fT)
7MHz
Vce Saturation(VCE(sat))
1V
type
NPN

Order codes

1

Pinout

3
The pins of the BU508A
PinNameType
1BInput
2CPassive
3EPassive

Open-source boards using it

All 1
  • 2 layers100 × 80 mmAnoden Stabi, the printed circuit board in 3D

    Anoden Stabi

    FordPrfkt/KT88-Amp

    Tube Amplifier using KT88 Tubes based on BlackCat

    26 parts1

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/sptech/BU508A" title="BU508A in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/sptech/BU508A.jpg" alt="BU508A" width="1200" height="900">
A picture that opens the part, for a README
[![BU508A](https://pcbkit.io/embed/parts/sptech/BU508A.jpg?size=s)](https://pcbkit.io/parts/sptech/BU508A)

Questions

Is there a KiCad symbol and footprint for the BU508A?

Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2C_3E and the footprint EasyEDA_Cloud:TO-3PN_L15.8-W5.0-P5.45-L, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BU508A?

TO-3PN, with 3 pins. Its footprint is drawn on this page.

Where is the BU508A datasheet?

SPTECH publishes it: the Datasheet link on this page opens it.

Where can I order the BU508A?

JLCPCB lists it as part C480155, with 1 in stock; the sellers' links on this page open their listings.

What can replace the BU508A?

Parts like it in the library: the TIP35C by SPTECH, the MJW0281A by SPTECH, the MJW1302A by SPTECH and the MJW3281A by SPTECH. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the BU508A?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8