# Transistors

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.
$14.95 Transistor - MJ15022, NPN, Power Transistor Transistor MJ15022, TO-3 Case, NPN 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$7.50
Transistor - MJ15016, PNP, Complementary High-Power
Transistor MJ15016, TO-3 Case, PNP
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
$6.50 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$6.50
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 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
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 Transistor - 2N321, Germanium, TO-5 case, PNP 2N321 PNP germanium transistors. The 2N321 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.$4.95
Transistor - OC141, Germanium, SO-2 glass case, NPN
OC141 NPN germanium transistors. The OC141 is a popular NPN for fuzz pedals and boost effects. This transistor is in a glass SO-2 package with long leads commonly found on germanium transistors. The NPN polarity allows for use with standard pedal power supplies. The dot indicates the collector lead.
$4.95 On Backorder Transistor - 2N1308, Germanium, TO-5 case, NPN 2N1308 NPN germanium transistors. The 2N1308 is a popular NPN for fuzz pedals and other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.$4.89
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
$4.75 Transistor - AS194DE, Matched Pair, Alfa, SOIC-8, NPN The AS194DE 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.$4.50
Transistor - AS194H, Matched Pair, Alfa, TO5-8 case, NPN
The AS194H 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.
$4.50 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
Transistor - AS3046, Array of 5, Matched Pair, 14-Pin DIP, NPN
The AS3046 is Alfa’s version of the CA3046 (LM3046) IC. The AS3046 consists of five general purpose silicon NPN transistors on a common monolithic substrate. Two of the transistors are internally connected to form a differentially-connected pair. The transistors are well suited to a wide variety of applications in low power systems. They may be used as discrete transistors in conventional circuits however, in addition, they provide the very significant inherent integrated circuit advantages of close electrical and thermal matching. The AS3046 is available in a 14-pin DIP package. Features
• Matched pair of npn transistors
• VBE matched less than ±1 mV
• 5 general purpose monolithic transistors
• Wide operating current range

Applications
• Filters
• Custom designed differential amplifiers
• Temperature compensated amplifiers
$3.99 Transistor - 2N270, Germanium, TO-5 case, PNP 2N270 PNP germanium transistors. The 2N270 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. The 2N270 has been used in effects such as the Maestro FZ-1 fuzz pedal.$3.95
Transistor - Fender®, A1837, amplifier application
A1837 Transistor - Fender. Power amplifier applications and Driver Stage Amplifier Applications.
$3.95 Transistor - AS3046D, Array of 5, Matched Pair, SOIC-14, NPN The AS3046 is Alfa’s version of the CA3046 IC in an SOIC package. The AS3046D consists of five general purpose silicon NPN transistors on a common monolithic substrate. Two of the transistors are internally connected to form a differentially-connected pair. The transistors are well suited to a wide variety of applications in low power systems. They may be used as discrete transistors in conventional circuits however, in addition, they provide the very significant inherent integrated circuit advantages of close electrical and thermal matching. The AS3046D is available in a 14-pin SOIC package. Features • Matched pair of npn transistors • VBE matched less than ±1 mV • 5 general purpose monolithic transistors • Wide operating current range Applications • Filters • Custom designed differential amplifiers • Temperature compensated amplifiers$3.95
Transistor - 2N508, Germanium, TO-5 case, PNP
2N508 PNP germanium transistors. The 2N508 is a popular PNP for fuzz pedals and other effects. It can be found in modern classics such as the Sunface. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.
$3.50 Transistor - J201, JFET, N-Channel,TO-92 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$3.49
Transistor - BC209C, Silicon, TO-106 case, NPN
The BC209C is a silicon NPN transistor in a TO-106 case. The BC209C is primarily intended for general purpose audio applications. BC209C transistors were used in original silicon Fuzz Face® pedals as well as a variety of D*A*M pedals.
$3.49 On Backorder Transistor - 2N3055, High Power NPN Silicon, TO-3 Case 15 A, 60 V, 115 W EPIBASE - Designed for power amplifier and switching regulator applications. The best choice where high frequency response, low switching losses and good safe operating area are required. • Current Gain - Bandwidth Product - fT = 2.5 MHz (Min) @ Ic = 1.0 Adc • Safe Operating Area - Full Power Rating to 40 V$3.25
Transistor - 2N527, Germanium, TO-5 case, PNP
2N527 PNP germanium transistors. The 2N527is 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.
$3.25 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