Transistors

PCB for converting SMD SOT-23 transistors and FETs to through hole footprints. This adapter board fits SOT-23 packages. Solder the device to this PCB then attach wires or pin headers (sold seperately) to connect to through hole footprints on PCBs or breadboards. The white box on the PCB can be used to label the part with a marker. See image below for pinout.

Single position machine pin sockets. These pressfit sockets are mounted by inserting into a PCB hole and applying some force. They stay firmly in place with tension and can then be easily soldered to the circuit board. These sockets can fit any pin spacing, such as the non-standard 0.15” spacing of the vintage-style stripboard (vs. 0.10” on standard stripboard). They can also jump rows so that they are not all in a line. The press-fit machine pin sockets are also very low profile and have a very minimal impact on the resulting look of the build. For pins sizes .015 -.025". The recommended mounting hole diameter is 0.057".

Surface mount MMBFJ201 JFET. Commonly used in place of the discontinued through-hole J201. These JFETs can be found in many effects pedals, synthesizers, and other projects. The MMBFJ201 is an N-Channel general purpose amplifier JFET. This device is designed primarily for low level audio and general purpose applications with high impedance signal sources.

The 2N3704 is a general purpose silicon NPN transistor in a TO-92 case. The 2N3704 is primarily intended for general purpose amplification and switching applications.

2N1309 PNP germanium transistors. The 2N1309 is a popular PNP for fuzz pedals and other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.

A1837 Transistor - Fender. Power amplifier applications and Driver Stage Amplifier Applications.

The BC338 is a silicon general purpose NPN transistor in a TO-92 package. The BC338’s typical applications include signal processing, amplification, and switching. The BC338 is available in three different gain ranges: BC338-16, BC338-25, and BC338-40. Type hFE Range (IC=100mA, VCE=1V) Typical hFE (IC=100mA, VCE=1V) BC338-16 100-250 160 BC338-25 160-400 250 BC338-40 250-630 400

2N797 NPN germanium transistors. The 2N797 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies. The 2N797 is a fairly unique germanium transistor since it is in a TO-18 package.

2N5457 N-Channel JFET in a TO-92 package. The 2N5457 is designed primarily for audio and switching applications.

• Max drain to gate voltage = 25 V
• Max gate to source voltage = -25 V
• Max forward gate current = 10 mA

PF5102 N-Channel Switch (TO-92 package) - designed for low level analog switching, sample and hold circuits and chopper stabilized amplifiers.

• Max drain to gate voltage = 40 V
• Max gate to source voltage = -40 V
• Max forward gate current = 50 m

The 2N4125 is a general purpose silicon NPN transistor in a TO-92 case. The 2N4125 is primarily intended for general purpose amplification. It is a popular choice for silicon fuzz pedals due to its low hFE specifications. It has also been used in a variety of classic pedals such as the Phase 90.

2N404A PNP germanium transistors. The 2N404A is used in many fuzz pedals along with other effects. The 2N404A is the same as the 2N404 but with a higher voltage rating. This transistor is in a TO-5 package with long leads commonly found on germanium transistors. For a lower voltage version of this transistor, see P-Q2N404.

Transistor MJ15015, TO-3 Case, NPN
PowerBase complementary transistors designed for high power audio, stepping motor and other linear applications. These devices can also be used in power switching circuits such as relay or solenoid drivers, dc–to–dc converters, inverters, or for inductive loads requiring higher safe operating areas.
Safe Operating Area - Rated to 60V

The BC547 is a silicon general purpose NPN transistor in a TO-92 package. The BC547’s typical applications include signal processing, amplification, and switching. The BC547 is available in two different gain ranges: BC547B and BC547C. Type hFE (IC=2mA, VCE=5V) BC547B 200-450 BC547C 420-800

2N6027 programmable unijunction transistor often referred to as a PUT. The 2n6027 can be found in many tremolo effects pedal projects.

J201 N-Channel JFET in a TO-92 package. The J201 is designed primarily for low level audio and general purpose applications with high impedance signal sources.

• Max drain to gate voltage = 40 V
• Max gate to source voltage = -40 V
• Max forward gate current = 50 mA

J201 N-Channel JFET in a TO-92 package made by Siliconix. The J201 is designed primarily for low level audio and general purpose applications with high impedance signal sources.

• Max drain to gate voltage = 40 V
• Max gate to source voltage = -40 V
• Max forward gate current = 50 mA

The 2N2222A is a NPN transistor in a TO-18 metal case. The 2N2222A is commonly used in fuzz pedals.

2N527 PNP germanium transistors. The 2N527 is a popular PNP for fuzz pedals and other effects. It can be found in modern classics such as the Sunface and Benson Fuzz. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.

2SC945 NPN transistors. This is a silicon NPN transistor in a TO-92 package. The 2SC945 was used in many classic Boss pedals such as the CE-2 chorus.

Transistor MJ15023, TO-3 Case, PNP
PowerBase power transistors designed for high power audio, disk head positioners and other linear applications.
Features

• High Safe Operating Area (100% Tested) −2 A @ 80 V
• High DC Current Gain − hFE = 15 (Min) @ IC = 8 Adc

The BC549 is a silicon general purpose NPN transistor in a TO-92 package. The BC549’s typical applications include signal processing, amplification, and switching. The BC549 is available in two different gain ranges: BC549B and BC549C. Type hFE (IC=2mA, VCE=5V) BC549B 200-450 BC549C 420-800

BC108 NPN silicon transistors. The BC108 is a popular NPN choice for fuzz pedals and other effects such as vintage silicon Fuzz Face builds and Big Muff clones. Type hFE (IC=2mA, VCE=5V) hfe (IC=2mA, VCE=5V, f=1KHz) BC108A 110-220 125-260 BC108B 200-450 240-500 BC108C 420-800 450-900

• NPN polarity
• Collector emitter breakdown voltage 25V
• Collector base breakdown voltage 30V
• Collector current 200mA
• Power 0.75W
• Transition frequency 150MHz
• TO-18 case
• Weight 0.35g

2N408 PNP germanium transistors. The 2N408 is a popular PNP for fuzz pedals and other effects. The 2N408 was popularly used in the germanium version of the Fuzzrite by Mosrite along with the 2N2613.