# Semiconductors

Diode - Fast Recovery, 1A, 600V, 1N4937
A semiconductor device that, above a certain reverse voltage(the zener value) has a sudden rise in current. If forward biased, the diode is an ordinary rectifier. When reverse biased, it exhibits a sharp break in its current-voltage graph. Voltage across the diode remains essentially constant for any further increase of reverse current.
$0.20 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
Diode - Hexfred, ultrafast soft recovery, 8A, 600V
High performance, ultrafast diodes. Improve efficiency, reduce noise, allow higher frequency operation.
$2.75 Integrated Circuit - SSI2130, VCO, Sound Semiconductor The FatKeys™ SSI2130 Voltage Controlled Oscillator provides beautiful triangle, sawtooth, pulse, and square waveforms with unprecedented temperature stability; and adds an on-chip mixer, low distortion sine wave generator, through-zero FM/PM capability and more in an ultra-compact PCB footprint.$8.95
Transistor - Peavey, MPS 6533, PNP Amplifier, 40V, TO-92
MPS 6533, PNP general purpose amp, 40V, TO-92 Case.
$1.95 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
Transistor - 2N3904, TO-92 case, NPN, Lead Free
General purpose low-power NPN bipolar junction transistor, used frequently in hobbyist electronic projects. This version is lead free.
For a lead free 2N3906 see P-Q2N3906-LF.
$0.35 On Backorder Transistor - Peavey, 2N5400, PNP Amp, 120V, 20MA, TO-92 2N5400 (761), PNP general purpose amp, 120V, 10mA, TO-92 case.$0.45
Integrated Circuit - SSI2162, Dual VCA, Sound Semiconductor
The FatKeys™ SSI2162 provides two independent VCA channels, and like its SSI2161 and SSI2164 siblings offers great flexibility in design of dynamics processors, automatic or remote level control, and voltage controlled filters. Highly compact 10-lead SSOP package. The SSI2162 is a versatile VCA building block for high-performance audio applications. Two independent channels provide voltage control of a current-mode input and output for a gain range from +20dB to –100dB, with control provided by a ground-referenced –33mV/dB constant. The device offers considerable flexibility for a wide range of design goals and applications. A unique mode control allows selection of Class A, Class AB, or in-between using a single resistor. In addition, improved current handling allows use of lower value input resistors for reduced output noise without loss of headroom. Both channels can be parallel-connected for further noise improvement.
$5.45 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.$0.45
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 - 2N6027 Programmable Unijunction 2N6027 programmable unijunction transistor often referred to as a PUT. The 2n6027 can be found in many tremolo effects pedal projects.$1.45
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 - 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
Diode - Hexfred, ultrafast soft recovery, 16A, 1200V
High performance, ultrafast diodes. Improve efficiency, reduce noise, allow higher frequency operation.
$8.10 Diode Thyristor - Peavey, SBS 14 Bidirectional, 8V, TO-92 Case Designed for full-wave triggering in Triac phase control circuits, half-wave SCR triggering application and as voltage level detectors. Used in most Peavey linear power amplifier designs through 2000 including CS/M/DECA series power amps, IPA300, and all models using 402/602/304S/204S power modules. • Low Switching Voltage — 8 Volts Typical • Uniform Characteristics in Each Direction • Low On-State Voltage — 1.7 Volts Maximum • Low Off-State Current — 0.1 mA Maximum$1.95
Diode - Small Signal Fast Switching, 1N4448
A semiconductor device which passes current in the forward direction(from anode to cathode), and blocks current in the opposite direction. Features
• Silicon epitaxial planar diodes
• Low power loss, high efficiency
• Low leakage
• Low forward voltage
• High speed switching
• High current capability
• High reliability

Used in a variety of Fender amps. Replacement for Fender part number 0006260049
$0.15 Transistor - Fender®, A1837, amplifier application A1837 Transistor - Fender. Power amplifier applications and Driver Stage Amplifier Applications.$3.95
Integrated Circuit - Experimental Noize FXCore, DSP, Multi-Effect / Reverb
FXCore from Experimental Noize is a DSP designed for creating audio effects in pro-audio devices. FXCore can operate as a standalone device when paired with appropriate CODECs where it generates all necessary clocks or as part of a more complex system where it will lock to the word clock and bit clock provided by another part of the system.
FXCore can store up to 16 programs and their associated register preset values in its internal FLASH memory so no external program storage is required.
$19.95 Transistor - Peavey, NPN 140V Driver, SJ-81180, 180V, 1A SJ-81180, NPN driver transistor. 180V, 1A, TO-3 Case.$8.25
Diode - Hexfred, 16A, 600V, ultrafast
High performance, ultrafast diodes. Improve efficiency, reduce noise, allow higher frequency operation.
$2.92 Save 27% Originally:$4.00
Integrated Circuit - SN74LS175, Quadruple D-Type Flip-Flops, 16-pin DIP
This quad flip flop is a part used in our Relay True Bypass Switching Part 2: Momentary and Soft Touch Switches article. To read the full article and learn about a circuit for relay switching in stomp box effects, please see the following link. https://www.amplifiedparts.com/tech-articles/relay-true-bypass-switching-2 These monolithic, positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic. All have a direct clear input, and the '175, 'LS175, and 'S175 feature complementary outputs from each flip-flop. Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse.
$1.10 Transistor - Peavey, PNP 180V Output, SJ-73180, 180V, 3A SJ-73180 (MJ21193), PNP output, 180V, 3A, TO-3 Case.$8.50
Integrated Circuit - SSI2161, Single VCA, Sound Semiconductor
A very high performance single-channel VCA for the most demanding applications, the ProCircuit™ SSI2161 offers industry-leading lowest-noise, and a mode control to optimize noise vs. distortion performance. All at low-cost and in a 10-lead SSOP package. The SSI2161 is a versatile VCA building block for high-performance audio applications. A single channel provides voltage control of current-mode inputs and outputs for a gain range from +20dB to –100dB, with control provided by a ground-referenced –33mV/dB constant. The device offers considerable flexibility for a wide range of design goals and applications. A unique mode control allows selection of Class A, Class AB, or in-between using a single resistor. In addition, improved current handling allows use of lower value input resistors for reduced output noise without loss of headroom.
\$5.45
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