Parts · Transistors
BC109
Si NPN BJT TO-18 / TO-92 TH.51 circuits use this part. Listed as: Semiconductors; 2N3904; BJT transistor, NPN TO-18; TO-92 Inline Wide-large-solderpads; Bc109 Bc109B Npn General Purpose Transistor.
Datasheet · archived copy from Siemens; the part is discontinued and the maker no longer publishes it
Substitutes Si NPN transistor
Matched on material, polarity and the limits below from the transistor parameter database. Pinouts and packages are not in that data: check the datasheet before you drop one in, and expect gain to change the sound.
This part
| Part | hFE min | Vce | Ic | Pc | fT |
|---|---|---|---|---|---|
| BC109 | 180 | 20 V | 100 mA | 0.3 W | 150 MHz |
Used on other boards here
| Part | hFE min | Vce | Ic | Pc | fT | Boards |
|---|---|---|---|---|---|---|
| 2N3415 | 180 | 25 V | 500 mA | 0.36 W | 1 | |
| BC108B | 200 | 20 V | 100 mA | 0.3 W | 150 MHz | 20 |
| BC239 | 200 | 20 V | 100 mA | 0.3 W | 150 MHz | 7 |
| BC238B | 200 | 20 V | 100 mA | 0.3 W | 150 MHz | 2 |
| BC239B | 200 | 20 V | 100 mA | 0.3 W | 150 MHz | 1 |
| BC149 | 200 | 20 V | 200 mA | 0.25 W | 150 MHz | 6 |
| BC149B | 200 | 20 V | 200 mA | 0.25 W | 150 MHz | 1 |
| BC349B | 200 | 20 V | 100 mA | 0.3 W | 125 MHz | 1 |
Closest by the numbers
| Part | hFE min | Vce | Ic | Pc | fT |
|---|---|---|---|---|---|
| BSW43 | 180 | 25 V | 200 mA | 0.3 W | 150 MHz |
| BSX52 | 180 | 25 V | 200 mA | 0.3 W | 150 MHz |
| BC4115 | 180 | 20 V | 2000 mA | 0.4 W | 150 MHz |
| BC239A | 200 | 20 V | 100 mA | 0.3 W | 150 MHz |
| BCY57 | 200 | 20 V | 200 mA | 0.3 W | 150 MHz |
| BC468B | 180 | 20 V | 100 mA | 0.22 W | 200 MHz |
| BC469 | 180 | 20 V | 100 mA | 0.22 W | 200 MHz |
| BC469B | 180 | 20 V | 100 mA | 0.22 W | 200 MHz |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Plasma (Legacy) BC109 Colorsound Overdriver · 1590B | Colorsound Overdriver | Overdrive | Aion FX | 1590B | 5 | — | 37 | |
| Blackhawk Amplifiers One Knob Valhalla Fuzz V1 Vero15×17 Verified 2N3904 · BC109 Blackhawk Amplifiers One Knob Valhalla Fuzz V1 | Blackhawk Amplifiers One Knob Valhalla Fuzz V1 | Fuzz | Dirtbox Layouts | — | 1 | — | 19 | |
| Colorsound Fuzz Box Vero12×8 Verified BC108 · BC109 Colorsound Fuzz Box | Colorsound Fuzz Box | Fuzz | Dirtbox Layouts | — | 1 | — | 15 | |
| Emanating Fist Black Acid Vero11×10 Verified BC109 Emanating Fist Black Acid | Emanating Fist Black Acid | Fuzz | Dirtbox Layouts | — | 3 | — | 17 | |
| Faylon F72 Fuzz Machien Vero13×10 Verified BC109 Faylon F72 Fuzz Machien | Faylon F72 Fuzz Machien | Fuzz | Dirtbox Layouts | — | 2 | — | 15 | |
| Fuzzlord Effects Void Master Vero14×8 Verified BC108 · BC109 Fuzzlord Effects Void Master | Fuzzlord Effects Void Master | Fuzz | Dirtbox Layouts | — | 1 | — | 16 | |
| M3 Emthree Mini Synthy Vero19×13 Verified BC109 · CD4024 · CD4024BE M3 Emthree Mini Synthy | M3 Emthree Mini Synthy | Fuzz | Dirtbox Layouts | — | 1 | — | 22 | |
| Regulus VIII / Os Mutantes Fuzz Vero14×8 Verified BC109 Creepy Fingers Regulus VIII | Creepy Fingers Regulus VIII | Fuzz | Dirtbox Layouts | — | 1 | — | 16 | |
| Schaller Tremolo Vero15×15 Verified BC109 Schaller Tremolo | Schaller Tremolo | Vibrato / Chorus | Dirtbox Layouts | — | 2 | — | 19 | |
| Top Gear Fuzz Vero11×9 Verified BC109 Top Gear Fuzz | Top Gear Fuzz | Fuzz | Dirtbox Layouts | — | 2 | — | 15 | |
| One-Knobber BC108 · BC109 1590A | — | Fuzz | Effects Layouts | 1590A | 1 | $4.25 | 15 | |
| D*A*M/Emanating Fist Black Dust Perfboard Verified BC109 Emanating Fist Black Dust · 1590A | Emanating Fist Black Dust | Fuzz | Effects Layouts (blog) | 1590A | 1 | — | 16 | |
| Emanating Fist Black Acid Perfboard Verified BC109 Emanating Fist Black Acid · 1590B | Emanating Fist Black Acid | Fuzz | Effects Layouts (blog) | 1590B | 3 | — | 17 | |
| JSA MUR Fuzz Perfboard Verified BC109 JSA MUR Fuzz · 1590B | JSA MUR Fuzz | Fuzz | Effects Layouts (blog) | 1590B | 6 | — | 24 | |
| Vox Repeat Percussion Tremolo Perfboard Verified 2N2646 · BC108 · BC109 Vox Repeat Percussion · 1590A | Vox Repeat Percussion | Tremolo | Effects Layouts (blog) | 1590A | 1 | — | 22 | |
| 3 line mixer BC109 | — | Utility | Experimentalists Anonymous | — | — | — | 7 | |
| ETI Wah Wah unit BC109 · BC109C | — | Wah / Envelope | Experimentalists Anonymous | — | — | — | 42 | |
| Moog VCF BC109 · LF412 · LM3046 · LM329 | — | Other | Experimentalists Anonymous | — | — | — | 90 | |
| Dark Side of the Fuzz BC109 Skreddy Lunar Module | Skreddy Lunar Module | Fuzz | Five Cats Pedals | — | 5 | £4.50 | 37 | |
| One Knob Fuzz Guitar PCB BC108 · BC109 Colorsound 1-Knob Fuzz D*A*M Meathead D*A*M Meathead - Dark Dr.Tony.Balls 1966 Black Arts Toneworks Ritual Fuzz · 1590A | Colorsound 1-Knob Fuzz D*A*M Meathead D*A*M Meathead - Dark Dr.Tony.Balls 1966 Black Arts Toneworks Ritual Fuzz | Fuzz | Five Cats Pedals | 1590A | 1 | £4.00 | 15 | |
| Aceed Noir Fuzz BC109 Emanating Fist Black Acid · 1590B | Emanating Fist Black Acid | Fuzz | Fuzz Dog | 1590B | 2 | £26.40 | 17 | |
| Mutantes Fuzz BC109 Creepy Fingers Regulus VIII · 1590B | Creepy Fingers Regulus VIII | Fuzz | Fuzz Dog | 1590B | 1 | £27.60 | 19 | |
| One Knob Fuzz BC108 · BC109 Colorsound One Knob Fuzz · 1590B | Colorsound One Knob Fuzz | Fuzz | Fuzz Dog | 1590B | 1 | £21.60 | 12 | |
| Schaller Fuzz BC109 Schaller Fuzz · 1590B | Schaller Fuzz | Fuzz | Fuzz Dog | 1590B | 2 | £24.00 | 18 | |
| Vintage Pow - Colorsound Overdriver / Power Boost BC109 Colorsound Overdriver / Power Boost · 1590B | Colorsound Overdriver / Power Boost | Fuzz | Fuzz Dog | 1590B | 4 | £33.60 | 34 | |
| Cyclops Fuzz BC108 · BC109 Colorsound One Knob Fuzz | Colorsound One Knob Fuzz | Fuzz | Griffin Effects | — | — | $6.00 | 13 | |
| ColorTone Overdriver v3 BC109 | — | Overdrive | GuitarPCB | — | 4 | $7.95 out | 38 | |
| D.S.O.T.M. Fuzz v4 Best Floyd Era Fuzz PCB BC109 | — | Fuzz | GuitarPCB | — | 4 | $8.95 out | 38 | |
| One Knob Fuzz v2 BC108 · BC109 | — | Fuzz | GuitarPCB | — | 1 | $5.95 out | 16 | |
| Moon Lander BC109 Dallas Arbiter Fuzz Face | Dallas Arbiter Fuzz Face | Fuzz | JMK PCBs | — | 2 | $10.00 out | 29 | |
| Cosmopolitan AC127 · BC109 · BS170 Skreddy Screwdriver · 1590B | Skreddy Screwdriver | Fuzz | Madbean | 1590B | 5 | $10.00 | 40 | |
| Dark Grime BC109 EFE Black Dust · 1590G | EFE Black Dust | Fuzz | Mask Audio Electronics | 1590G | 1 | $4.00 | 17 | |
| Color Booster BC109 Colorsound Overdriver | Colorsound Overdriver | Boost | Moody Sounds | — | 4 | kr895.00 out | 20 | |
| Das Schallert Ordentlich BC109 Schaller Fuzz Silicon | Schaller Fuzz Silicon | Fuzz | Moonn Electronics | — | 2 | €4.50 | 16 | |
| Third Eye BC109 Dallas Arbiter Treble & Bass Face | Dallas Arbiter Treble & Bass Face | Boost | Moonn Electronics | — | 3 | €4.50 | 26 | |
| Wabern BC109 Schaller Tremolo | Schaller Tremolo | Vibrato / Chorus | Moonn Electronics | — | 2 | €5.50 | 32 | |
| Lunar Module Mini Deluxe BC109 Skreddy Lunar Module Mini Deluxe | Skreddy Lunar Module Mini Deluxe | Other | PCBWay: Glory to Ukraine | — | 5 | — | 28 | |
| One Knob Fuzz BC108 · BC109 Colorsound One Knob Fuzz | Colorsound One Knob Fuzz | Fuzz | PCBWay: Glory to Ukraine | — | 1 | — | 13 | |
| Harmonic Percolator (with mods) 182505 · 2N7000 · BC109 · MP35 Interfax Harmonic Percolator · 1590BB2 | Interfax Harmonic Percolator | Fuzz | Naegele Audio | 1590BB2 | 4 | — | 42 | |
| Yellow Hybrid Tone Bender 2SD77 · BC109 · BC109C Colorsound Yellow Hybrid Tone Bender · 125B | Colorsound Yellow Hybrid Tone Bender | Fuzz | Naegele Audio | 125B | 3 | — | 45 | |
| Powersound Overdrive BC109 Colorsound Overdriver · 125B | Colorsound Overdriver | Fuzz | PedalPCB | 125B | 4 | $12.00 | 36 | |
| Black Arts Toneworks Black Forest Vero19×11 Verified BC109 Black Arts Toneworks Black Forest | Black Arts Toneworks Black Forest | Overdrive | Tagboard Effects | — | 4 | — | 29 | |
| Colorsound One Knob Fuzz Vero10×8 Verified BC108 · BC109 Colorsound One Knob Fuzz · 1590A | Colorsound One Knob Fuzz | Fuzz | Tagboard Effects | 1590A | 1 | — | 13 | |
| Emanating Fist Electronics Black Acid - Tone Distorter Vero16×8 Verified BC109 Emanating Fist Black Acid | Emanating Fist Black Acid | Fuzz | Tagboard Effects | — | 3 | — | 15 | |
| Emanating Fist Electronics Black Dust - Tone Distorter Vero12×9 Verified BC109 Emanating Fist Black Dust | Emanating Fist Black Dust | Fuzz | Tagboard Effects | — | 1 | — | 12 | |
| Italian Jen Wah Clyde McCoy Vero15×12 Verified BC109 Italian Jen Wah Clyde McCoy | Italian Jen Wah Clyde McCoy | Wah / Envelope | Tagboard Effects | — | 1 | — | 15 | |
| Schaller Tremolo Vero21×12 Verified BC109 · BC170 Schaller Tremolo | Schaller Tremolo | Tremolo | Tagboard Effects | — | 2 | — | 18 | |
| Top Gear Fuzz = Guild Grizzly Vero10×8 Verified BC109 Top Gear Fuzz | Top Gear Fuzz | Fuzz | Tagboard Effects | — | 2 | — | 10 | |
| Fuzz Face 2N3906 / BC108 / BC109 Dallas Arbiter Fuzz Face | Dallas Arbiter Fuzz Face | Fuzz | Tayda Electronics (DHEA) | — | 2 | $6.00 | 12 | |
| Fuzz Face (with DC inverter) 2N3906 / BC108 / BC109 · TC1044 · TC1044SCPA Dallas Arbiter Fuzz Face | Dallas Arbiter Fuzz Face | Fuzz | Tayda Electronics (DHEA) | — | 3 | $6.00 | 18 | |
| One Knob Fuzz BC108 · BC109 | — | Fuzz | Tayda Electronics (DHEA) | — | 1 | $6.00 | 14 |