Transistors

P-QTIP47 Transistor - TIP47, NPN, Power Transistor
The TIP47 power transistor is intended for use in linear and switching applications. This series is designed for line operated audio output amplifiers, switchmode power supply drivers and other switching applications.
$0.89
P-QOC45-VALVO Transistor - OC45, Valvo, Germanium, SO-2 glass case, PNP
Valvo brand OC45 PNP germanium transistors. The OC45 is a popular PNP for fuzz pedals and boost effects. This transistor is in a glass SO-2 package with long leads commonly found on germanium transistors. The dot indicates the collector lead.
$12.65
P-Q2N1307 Transistor - 2N1307, Germanium, TO-5 case, PNP
2N1307 PNP germanium transistors. The 2N1307 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.
$2.95
P-QBC149C Transistor - BC149C, Silicon, Lockfit case, NPN
BC149C NPN transistor in a rare Mullard Lockfit package. The BC149C is the equivalent of a BC109C but in the Lockfit package rather than a TO-18. The BC149C was used in a variety of audio and radio equipment and works well for fuzz and other effects. It can be found in the Brian May treble boost and the Electrolabs Fuzz.
$0.85
P-Q2N4123 Transistor - 2N4123, Silicon, TO-92 case, NPN
The 2N4123 is a general purpose silicon NPN transistor in a TO-92 case. The 2N4123 is primarily intended for general purpose amplification. It is a popular choice for silicon fuzz pedals due to its low hFE specifications.
$0.45
P-QAC132K Transistor - AC132K, Germanium, Heatsink TO-1 case, PNP
AC132K PNP germanium transistors. The AC132K is a popular PNP for fuzz pedals and other effects. This transistor is in a thick rectangular heat-sink package with long leads commonly found on germanium transistors.
$2.95
P-QTIP41C Transistor - TIP41C, NPN Epitaxial Transistor
Transistor TIP41C, TO-220 Case. NPN Epitaxial Silicon Transistor Complementary to TIP42 (P-QTIP42C) Max ratings:
  • Collector-Base voltage = 100V
  • Collector-Emitter Voltage = 100V
  • Emitter-Base Voltage = 5V
  • Collector current (DC) = 6A
  • Collector current (Pulse) = 10A
  • Base current = 2A
$0.85
P-Q2N1309-SET-FF Transistor Set - tested and selected for Fuzz Face, 2N1309, PNP, Germanium
This is a set of two 2N1309 germanium transistors that have been hand-selected to work in the germanium Fuzz Face circuit. Also included are 4 metal film resistors to use in the circuit. In most cases, the values have been modified from the stock values slightly to ensure that the collector of Q2 biases to roughly -4.5V. A data sheet containing the schematic and the resistor values is included so that you can use your own resistor type if you would prefer. There is a range of bias voltages that can sound nice in a Fuzz Face, and voltages in original units varied. These transistors have been tested with bias voltage, sound, and noise level in mind. Note that due to a variety of factors such as battery/PSU voltage, temperature, and component tolerance, the voltage on the collector of Q2 may not measure at exactly -4.5V, but it should be close in a properly-built circuit.
$24.95
P-Q2N3906-LF Transistor - 2N3906, TO-92 case, PNP, Lead Free
General purpose low-power PNP bipolar junction transistor, used frequently in hobbyist electronic projects. This version is lead free.
For a lead free 2N3904 see P-Q2N3904-LF.
$0.53
P-QBD139-X Transistor - BD139, Medium Power, TO-126 case, NPN
The BD139 is a NPN medium power BJT transistor in a TO-126 package. The BD139's typical applications include audio amplifiers and drivers but is also popularly used in silicon fuzz pedals. The BD139 is available in two different gain ranges: BD139-10 and QBD139-16. Type hFE (IC=150mA, VCE=2V) BD139-10 63-160 BD139-16 100-250
Starting at $0.54
P-QMJ15023 Transistor - MJ15023, PNP, Power Transistor
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
$6.00
P-QBC557C Transistor - BC557C, General Purpose, TO-92 case, PNP
The BC557 is a silicon general purpose PNP transistor in a TO-92 package. The BC557’s typical applications include signal processing, amplification, and switching.
$0.30
P-QMJ15015 Transistor - MJ15015, NPN, Complementary High-Power
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
$7.95
P-QBC546X Transistor - BC546, General Purpose, TO-92 case, NPN
The BC546 is a silicon general purpose NPN transistor in a TO-92 package. The BC546’s typical applications include signal processing, amplification, and switching. The BC546 is available in two different gain ranges: BC546B and BC546C. Type hFE (IC=2mA, VCE=5V) BC546B 200-450 BC546C 420-800
$0.30
P-Q-AS395H Transistor - AS395H, Matched Pair, Alfa, TO5-8 case, PNP
The AS395 dual monolithic PNP transistor offers excellent parametric matching and high frequency performance. Low noise characteristics (1 nV/√Hz typ @ 1 kHz), high bandwidth (190 MHz typical), and low offset voltage (100 µV max), makes the AS395 an excellent choice for demanding preamplifier applications.Tight current gain matching (3% max mismatch) and high current gain (100 min), over a wide range of collector current, makes the AS395 an excellent choice for current mirrors. A low value of bulk resistance makes the AS395 an ideal component for applications requiring accurate logarithmic conformance. To ensure the long-term stability of the matching parameters, internal protection diodes across the base-emitter junction clamp any reverse base-emitter junction potential.
$5.50
P-Q2N1303 Transistor - 2N1303, Germanium, TO-5 case, PNP
2N1303 PNP germanium transistors. The 2N1303 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.
$2.95
P-Q2N3704 Transistor - 2N3704, Silicon, TO-92 case, NPN
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.
$0.39
P-QACY31 Transistor - ACY31, Germanium, TO-1 case, PNP
ACY31 PNP germanium transistors. The ACY31 is a popular PNP for fuzz pedals and other effects. The ACY31 can be found in the rare CSL Super Fuzz version of the MKIV Tone Bender. This transistor is in a TO-1 package with long leads commonly found on germanium transistors.
$4.95
P-Q-AS394CH Transistor - AS394CH, Matched Pair, Alfa, TO5-8 case, NPN
The AS394CH is a junction isolated ultra well-matched monolithic NPN transistor pair with an order of magnitude improvement in matching over conventional transistor pairs. Electrical characteristics of these devices such as drift versus initial offset voltage, noise, and the exponential relationship of base-emitter voltage to collector current closely approach those of a theoretical transistor. Extrinsic base and emitter resistances are very low, giving very low noise and operating over a wide current range. To guarantee long term stability of matching parameters, internal clamp diodes have been added across the emitter-base junction of each transistor. These prevent degradation due to reverse biased emitter current, the most common cause of field failures in matched devices.
$4.95
P-QBC148C Transistor - BC148C, Silicon, Lockfit case, NPN
BC148C NPN transistor in a rare Mullard Lockfit package. The BC148C is the equivalent of a BC108C but in the Lockfit package rather than a TO-18. The BC148C was used in a variety of audio and radio equipment and works well for fuzz and other effects.
$1.95
P-QMJ15025 Transistor - MJ15025, TO-3 case, power
Transistor MJ15025, TO-3 Case The MJ15025 is a power transistor designed for high-power audio, disk head positioners, and other linear applications Features:
  • High Safe Operating Area: -2A @ 80 V
  • High DC Current Gain hFE = 15 (Min) @ IC = 8 Adc
$6.49
P-QQ4025P Triac - Q6025P5 - Alternistor, 600V, 25A, Fastpack TO-3 Base
Alternistors are specifically designed for applications which are required to switch highly inductive loads. To accomplish this, a special chip has been designed which effectively offers the same performance as two thyristors (SCRs) wired inverse parallel (back to back); hence the alternistor has better turn-off behavior than a standard triac.
$18.95
P-Q-AS394H Transistor - AS394H, Matched Pair, Alfa, TO5-8 case, NPN
The AS394H is a junction isolated ultra well-matched monolithic NPN transistor pair with an order of magnitude improvement in matching over conventional transistor pairs. Electrical characteristics of these devices such as drift versus initial offset voltage, noise, and the exponential relationship of base-emitter voltage to collector current closely approach those of a theoretical transistor. Extrinsic base and emitter resistances are very low, giving very low noise and operating over a wide current range. To guarantee long term stability of matching parameters, internal clamp diodes have been added across the emitter-base junction of each transistor. These prevent degradation due to reverse biased emitter current, the most common cause of field failures in matched devices.
$4.25
P-QZTX457 Transistor - ZTX457, NPN, Medium Power, High Voltage
High voltage medium-power ZTX457 transistor.
Features:
  • 300 Volt Collector-Emitter Voltage
  • 300 Volt Collector-Base Voltage
  • 0.5 Amp continuous current
  • 1 Watt Maximum Power Dissipation
$0.63
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