# Synth & Eurorack Parts / DIY

Our Synth & Eurorack Parts / DIY category is a curated list of items that are commonly found in synth/eurorack projects. The items and filters here do not represent our full lineup of parts. If you don't see what you are looking for, check out our main categories or send us a suggestion and we'll look into adding it.
Patch Cables - 3.5mm, Mono
Colors Available:
Low cost, high quality 3.5mm patch cables in a variety of lengths and colors. The cables are super flexible, have a great droop, and are shipped coiled so no permanent kinks are formed. With the large selection of lengths and colors, these cables are the perfect choice for any sized system.
Starting at $1.39 Washer - Flat, for use on Qingpu Jacks Flat washer for W-QP-419GR and W-QP-518MA 3.5mm jacks.$0.09
Nut - Round, for mounting Qingpu PJ3410 3.5mm jacks
Knurled, slotted nut for W-QP-PJ3410 3.5mm jacks. See W-QP-NUT-PJ-H for the hex version of this nut.
$0.09 Nut - Knurled, for mounting Qingpu 3.5mm jacks Knurled, slotted nut for W-QP-419GR and W-QP-518MA 3.5mm jacks. See W-QP-NUT-H for the hex version of this nut. See W-QP-WASHER for compatible washer$0.09
Nut - Hex, for mounting Qingpu PJ3410 3.5mm jacks
Hex nut for W-QP-PJ3410 3.5mm jacks. See W-QP-NUT-PJ-R for the round, slotted version of this nut.
$0.09 Nut - Hex, for mounting Qingpu 3.5mm jacks Hex nut for W-QP-419GR and W-QP-518MA 3.5mm jacks. See W-QP-NUT-K for the knurled, slotted version of this nut. See W-QP-WASHER for compatible washer$0.09
Diode - General purpose rectifier, 1A, 1N400X
A semiconductor device which passes current in the forward direction (from anode to cathode), and blocks current in the opposite direction.
Starting at $0.15 Transistor - MPSA18, Darlington 200mA 45V NPN NPN Darlington transistor (TO-92 package) - designed for high gain, low noise general purpose amplifier applications. • Max collector to emitter voltage = 45 V • Max collector to base voltage = 45 V • Max emitter to base voltage = 6.5 V • Max collector current = 0.2 A (continuous)$0.15
Diode - 1N914, Small Signal
The 1N914 is a small signal diode similar to the 1N4148 and is common in many older electronics. The 1N914 is general purpose and can be used in a multitude of different applications.
$0.15 Diode - 1N5817, Schottky, High Switching Speed Schottky diode with low forward voltage drop and high switching speeds.$0.15
IC Socket - Dual in-line package, 2.54mm Pitch, 7.62mm Spacing
IC component sockets for dual in-line package chips (DIP, PDIP, DIL, DIPP.) These sockets feature ladder style cases with tinned stamped and formed connections.
Starting at $0.15 Diode - 1N5818, Schottky, High Switching Speed, 30V, 10A 1N5818 schottky diode with low forward voltage drop and high switching speeds. • Very small conduction losses • Negligible switching losses • Extremely fast switching • Low forward voltage drop • Avalanche capability specified$0.15
Op-Amp - LM324, Quad, Low-Power, 14-Pin DIP
Quad low-power opamps in an 14-pin DIP package. The LM324 offers a 1MHz bandwidth and can be powered from a single supply.
$0.18 Transistor - 2N3904, TO-92 case, NPN General purpose low-power NPN bipolar junction transistor, used frequently in hobbyist electronic projects.$0.18
Transistor - BC550 B, TO-92 case, NPN
Low noise transistor for audio frequency amplifier applications.
$0.19 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
Diode - Zener, 1W, 5% Tolerance
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 Capacitor - 100V, Ceramic Disc, ± 10% 100 V ceramic disc capacitors. ± 10% tolerance. Starting at$0.20
Transistor - 2N5088, Bipolar, General Purpose
2N5088 NPN Bipolar Junction Transistor in TO-92 package
$0.20 Op-Amp - TL082, Dual, Wide-Bandwidth, JFET Input, 8-Pin DIP Dual wide-bandwidth TL082 opamps in an 8-pin DIP package. The TL082 offers a high input impedance and 4MHz bandwidth.$0.21
Capacitor - 0.002uF, 1000V, Ceramic Disc, ± 10%
0.002uF ceramic disc capacitor rated for up to 1kV, ± 10% tolerance.
$0.25 Capacitor - 500V, Ceramic Disc, ± 10% Radial ceramic capacitor. • Voltage rating: 500VDC • Tolerance: ± 10% Starting at$0.25
Diode - BAT41, Schottky, Small Signal
The BAT41 is a schottky diode used in many DIY projects. General purpose metal to silicon diode featuring very low turn-on voltage and fast switching. This device has integrated protection against excessive voltage such as electrostatic discharges.
$0.28 Transistor - 2N5087, Bipolar, General Purpose, PNP 2N5087 PNP Bipolar Junction Transistor in TO-92 package. For the NPN 2N5087 see P-Q2N5088$0.28
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