Parts · Transistors
BC550
Si NPN BJT TO-92 TH.51 circuits use this part. Listed as: BJT transistor, NPN TO-92; TO-‐92 transistor BC338,; Transistor BC550.
Datasheet · from onsemi.com
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 |
|---|---|---|---|---|---|
| BC550 | 240 | 45 V | 100 mA | 0.5 W | 200 MHz |
Used on other boards here
| Part | hFE min | Vce | Ic | Pc | fT | Boards |
|---|---|---|---|---|---|---|
| ZTX382B | 240 | 45 V | 100 mA | 0.45 W | 150 MHz | 1 |
| BC209 | 240 | 45 V | 100 mA | 0.3 W | 150 MHz | 1 |
| TIS97 | 250 | 40 V | 100 mA | 0.5 W | 125 MHz | 6 |
| BC547B | 200 | 45 V | 100 mA | 0.5 W | 200 MHz | 61 |
| BC182B | 240 | 50 V | 200 mA | 0.3 W | 120 MHz | 3 |
| ECG123A | 200 | 40 V | 800 mA | 0.5 W | 300 MHz | 1 |
| BC546B | 200 | 65 V | 100 mA | 0.5 W | 150 MHz | 7 |
| BC107B | 200 | 45 V | 100 mA | 0.3 W | 150 MHz | 14 |
Closest by the numbers
| Part | hFE min | Vce | Ic | Pc | fT |
|---|---|---|---|---|---|
| BC524 | 240 | 45 V | 100 mA | 0.625 W | |
| BC524B | 240 | 45 V | 100 mA | 0.625 W | |
| BCW66KH | 250 | 45 V | 800 mA | 0.5 W | 170 MHz |
| 2N6016 | 240 | 60 V | 800 mA | 0.5 W | 240 MHz |
| 2SC6033 | 250 | 50 V | 2500 mA | 0.625 W | |
| 2N6539 | 250 | 40 V | 200 mA | 0.625 W | 200 MHz |
| KSP8097 | 250 | 40 V | 200 mA | 0.625 W | |
| BSX79B | 250 | 45 V | 100 mA | 0.345 W | 200 MHz |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Bearfoot Fx / BJFe Pale Green Compressor Vero22×19 Verified 78L05 · ? · BC550 · NE5534 BearFoot FX Pale Green Compressor | BearFoot FX Pale Green Compressor | Compressor | Dirtbox Layouts | — | 3 | — | 27 | |
| Boss NF-1 Noise Gate Vero25×22 Verified 2N5485 · 741 · BC550 · LM741 Boss NF-1 Noise Gate | Boss NF-1 Noise Gate | Noise Gate | Dirtbox Layouts | — | 2 | — | 40 | |
| God City Instruments Uno Fuzz Vero20×21 Verified 741 · BC550 · LM741 God City Instruments Uno Fuzz | God City Instruments Uno Fuzz | Fuzz | Dirtbox Layouts | — | 1 | — | 33 | |
| Guyatone PS-024 Distortion H Vero25×26 Verified 4558 · BC550 · M5226P Guyatone PS-024 Distortion H | Guyatone PS-024 Distortion H | Distortion | Dirtbox Layouts | — | 7 | — | 47 | |
| Mojo Hand Fx Iron Bell Fuzz Vero19×17 Verified 2N5088 · BC550 Mojo Hand Fx Iron Bell Fuzz | Mojo Hand Fx Iron Bell Fuzz | Distortion | Dirtbox Layouts | — | 4 | — | 33 | |
| Moosapotamus Acoustic 360 Bass Fuzz Vero15×17 Unverified 2N1306 · 2N5210 · BC550 Acoustic 360 Fuzz | Acoustic 360 Fuzz | Boost | Dirtbox Layouts | — | 4 | — | 33 | |
| Zzoyd's Allies Fuzz Vero14×12 Verified BC550 · NPN GERMANIUM · PNP GERMANIUM Zzoyd Allies Fuzz | Zzoyd Allies Fuzz | Boost | Dirtbox Layouts | — | 3 | — | 14 | |
| Sucker Punch Fuzz BC550 Colorsound Bass Fuzz / Super Tonebender | Colorsound Bass Fuzz / Super Tonebender | Fuzz | 1776 Effects | — | 3 | $8.00 | 39 | |
| BearFoot FX Candy Apple Fuzz Perfboard Verified 2N1308 · 2N5952 · BC550 BearFoot FX Candy Apple Fuzz · 1590B | BearFoot FX Candy Apple Fuzz | Fuzz | Effects Layouts (blog) | 1590B | 4 | — | 31 | |
| MojoHand FX Iron Bell/Skreddy P19 Perfboard Verified 2N5088 · BC550 MojoHand FX Iron Bell/Skreddy P19 · 1590B | MojoHand FX Iron Bell/Skreddy P19 | Fuzz | Effects Layouts (blog) | 1590B | 4 | — | 36 | |
| Moosapotamus 360 Fuzz Perfboard Verified 2N1306 · 2N5210 · BC550 Acoustic 360 Fuzz · 1590B | Acoustic 360 Fuzz | Fuzz | Effects Layouts (blog) | 1590B | 4 | — | 32 | |
| Pink Jimi Photon Photonic Juergulator Mk 2 Perfboard Verified AC176 · BC550 Pink Jimi Photon Photonic Juergulator Mk 2 | Pink Jimi Photon Photonic Juergulator Mk 2 | Overdrive | Effects Layouts (blog) | — | 4 | — | 19 | |
| Soft-Latch Relay Switching Perfboard Verified BC550 · BC560 Soft-Latch Relay Switching · 1590B | Soft-Latch Relay Switching | Utility | Effects Layouts (blog) | 1590B | — | — | 12 | |
| Tails Bypass Looper Perfboard Verified BC550 · BC560 · TL072 Tails Bypass Looper · 1590A | Tails Bypass Looper | Delay | Effects Layouts (blog) | 1590A | — | — | 18 | |
| 7 of Dwarves Auto Wah 2N5457 · 78L05 · BC550 · LM13700 Mad Professor Snow White AutoWah · 1590B | Mad Professor Snow White AutoWah | Wah / Envelope | Fuzz Dog | 1590B | 4 | £37.20 | 58 | |
| Unofuzz 741 · BC550 God City Instruments Uno Fuzz · 125B | God City Instruments Uno Fuzz | Fuzz | God City Instruments | 125B | 1 | $10.00 | 52 | |
| BF2 Flanger 4558 · 78L05 · BC550 · BC560 Boss BF-2 Flanger | Boss BF-2 Flanger | Flanger | Guitar-Electronics.eu | — | 7 | €9.75 | 113 | |
| GE7 Guitar Equalizer 4558 · BC550 · NE5534 · TL072 Boss GE-7 Equalizer | Boss GE-7 Equalizer | EQ / Filter | Guitar-Electronics.eu | — | 8 | €6.25 | 73 | |
| GE7b Bass Equalizer 4558 · BC550 · NE5534 · TL072 Boss GEB-7 Bass Equalizer | Boss GEB-7 Bass Equalizer | EQ / Filter | Guitar-Electronics.eu | — | 8 | €6.25 | 73 | |
| NF1 2N5485 · 741 · BC550 Boss NF-1 Noise Gate | Boss NF-1 Noise Gate | Noise Gate | Guitar-Electronics.eu | — | 1 | €6.25 out | 53 | |
| PQ3b Parametric Equalizer BC550 · BF247 · TL074 Boss PQ-3B Bass Parametric Equalizer | Boss PQ-3B Bass Parametric Equalizer | EQ / Filter | Guitar-Electronics.eu | — | 4 | €9.75 out | 75 | |
| PQ4 Parametric Equalizer BC550 · BF247 · TL074 Boss PQ-4 Parametric Equalizer | Boss PQ-4 Parametric Equalizer | EQ / Filter | Guitar-Electronics.eu | — | 3 | €9.75 out | 74 | |
| Slow Gear 2SK30A · 741 · BC550 Boss SG-1 Slow Gear | Boss SG-1 Slow Gear | Other | Guitar-Electronics.eu | — | 2 | €6.25 out | 56 | |
| Sabotage Drive BC550 Best PCB for Sabbath | Best PCB for Sabbath | Overdrive | GuitarPCB | — | 4 | $9.95 out | 53 | |
| Swah v5 2N5457 · 78L05 · BC550 · LM13700 | — | Wah / Envelope | GuitarPCB | — | 4 | $9.95 out | 59 | |
| Crazy Frog Auto Wah 2N5458 · 78L05 · BC550 · LM13700 Mad Professor Snow White · 1590B | Mad Professor Snow White | Wah / Envelope | HotKits | 1590B | 4 | — out | 32 | |
| Scuba Muff BC550 Electro-Harmonix Big Muff Pi | Electro-Harmonix Big Muff Pi | Fuzz | JMK PCBs | — | 3 | $6.00 | 59 | |
| Super Murid 64 2N5458 · BC550 · BS170 ProCo RAT | ProCo RAT | Distortion | Other Pedals | — | 5 | $14.00 out | 72 | |
| Cosmos Delay SMD BC550 · LM78L05 · PT2399 · TL072 Sagan Delay | Sagan Delay | Delay | PCB Guitar Mania | — | 4 | €24.90 out | 43 | |
| Love Cheese BC549C · BC550 · TL072 Lovetone Big Cheese · 125B | Lovetone Big Cheese | Fuzz | PCB Guitar Mania | 125B | 4 | €11.90 out | 48 | |
| Zephyr Stereo Chorus BC550 · MN3102 · MN3207 · TL072 Arion SCH-1 Stereo Chorus | Arion SCH-1 Stereo Chorus | Vibrato / Chorus | PCB Guitar Mania | — | 4 | €14.90 out | 109 | |
| Candy Apple 2N1308 · 2N5952 · BC550 BearFoot FX Candy Apple Fuzz | BearFoot FX Candy Apple Fuzz | Other | PCBWay: Glory to Ukraine | — | 4 | — | 31 | |
| Range Boss (FuzzDogs) BC550 | — | Fuzz | PCBWay: Glory to Ukraine | — | 2 | — | 16 | |
| Apple Fritter Fuzz 2N1308 · 2N5952 · BC550 BearFoot FX Candy Apple Fuzz · 125B | BearFoot FX Candy Apple Fuzz | Fuzz | PedalPCB | 125B | 4 | $8.00 | 45 | |
| Poison Apple Auto-Wah 2N5457 · BC550 · L78L05 · LM13700 Mad Professor Snow White AutoWah · 125B | Mad Professor Snow White AutoWah | EQ / Filter | PedalPCB | 125B | 4 | $12.00 | 58 | |
| XB-MB Preamp 4558 · BC550 · JRC4558 Xotic BB Preamp Mid Boost · 125B | Xotic BB Preamp Mid Boost | Fuzz | PedalPCB | 125B | 5 | $12.00 | 53 | |
| Mad Professor Snow White Auto Wah Vero 2N5457 · 7805 · BC550 · LM324 Mad Professor Snow White AutoWah | Mad Professor Snow White AutoWah | Wah / Envelope | Revolution Deux | — | 4 | — | 60 | |
| Skreddy P19 BC550 Skreddy P19 | Skreddy P19 | Fuzz | Revolution Deux | — | 3 | — | 58 | |
| Squeezy-PG BC550 · L78L05 · LCR-0202 · NE5534 BJF Pale | BJF Pale | Compressor | Sheepylove | — | 3 | €10.00 | 46 | |
| Exar DS-02 Distortion Vero21×14 Unverified 741 · BC550 · J113 Exar DS-02 Distortion | Exar DS-02 Distortion | Distortion | Tagboard Effects | — | 3 | — | 24 | |
| Exar HR-03 Hammer Vero20×24 Unverified 2SK30 · BC550 · TL072 Exar HR-03 Hammer | Exar HR-03 Hammer | Distortion | Tagboard Effects | — | 3 | — | 38 | |
| Exar MM-04 Moon Metal Vero18×24 Unverified 2SK30A · BC550 · TL072 Exar MM-04 Moon Metal | Exar MM-04 Moon Metal | Distortion | Tagboard Effects | — | 5 | — | 36 | |
| Exar MT-1 Metal Vero20×20 Verified BC547 · BC550 · TL072 Exar MT-1 Metal · 1590B | Exar MT-1 Metal | Distortion | Tagboard Effects | 1590B | 4 | — | 30 | |
| Exar OD-02 Overdrive Vero21×15 Verified BC547 · BC550 · BC560 · J113 Exar OD-02 Overdrive | Exar OD-02 Overdrive | Overdrive | Tagboard Effects | — | 3 | — | 21 | |
| Mad Professor Snow White Autowah Vero20×29 Verified 2N5457 · 7805 · BC550 · LM13700 Mad Professor Snow White AutoWah · 1590B | Mad Professor Snow White AutoWah | EQ / Filter | Tagboard Effects | 1590B | 4 | — | 34 | |
| Madbean Cave Dweller II Dub Edition Vero19×22 Verified 78L05 · BC550 · PT2399 Madbean Cave Dweller II Dub Edition | Madbean Cave Dweller II Dub Edition | Delay | Tagboard Effects | — | 3 | — | 28 | |
| Madbean Zero Point SDX2 Vero32×38 Unverified 4558 · 7805 · BC550 · PT2399 Madbean Zero Point SDX2 | Madbean Zero Point SDX2 | Delay | Tagboard Effects | — | 12 | — | 63 | |
| Moosapotamus Acoustic 360 Bass Fuzz Vero19×14 Verified 2N1306 · 2N5210 · BC550 Acoustic 360 Fuzz | Acoustic 360 Fuzz | Fuzz | Tagboard Effects | — | 4 | — | 28 | |
| Palmer Hurrigain Vero18×8 Verified BC550 Palmer Hurrigain | Palmer Hurrigain | Fuzz | Tagboard Effects | — | 3 | — | 23 | |
| Sagan Delay Vero Verified 2N5457 · 7805 · BC550 · PT2399 Sagan Delay | Sagan Delay | Delay | Tagboard Effects | — | 10 | — | 54 | |
| Soft Latch Relay Bypass Daughterboard Perfboard15×11 Verified BC550 · BC560 Soft Latch Relay Bypass Daughterboard · 1590B | Soft Latch Relay Bypass Daughterboard | Utility | Tagboard Effects | 1590B | 1 | — | 11 |