Transistor Pack – 840 TO-92 Transistors, 50 TO-220 MOSFETs and 100 TO-126 BD Transistors (990 Parts)
Three boxes, 990 transistors: 24 TO-92 types, 10 TO-220 power MOSFETs (IRFZ44N, IRF540N…) and 10 TO-126 BD types, part by part.
Designed by Mematrix Lab
Description
Every common transistor, from signal to power
Three compartment boxes with 990 transistors: 24 types of TO-92 small-signal transistors, 10 types of TO-220 power MOSFETs and 10 types of TO-126 BD medium-power transistors. Together they cover amplifiers and switches, LED and relay drivers, motor control and power supplies, with complementary NPN/PNP pairs for push-pull stages.
What's in the pack
| Box | Contents | Qty |
|---|---|---|
| TO-92 small-signal transistors | 24 types × 35 (table below) | 840 |
| TO-220 power MOSFETs | 10 types × 5 (table below) | 50 |
| TO-126 BD medium-power transistors | 10 types × 10 (table below) | 100 |
| Total | 990 |
TO-92 transistors, 35 of each

| Part | Type | Use | Part | Type | Use |
|---|---|---|---|---|---|
| 2N2222 | NPN | General purpose, switching | S9014 | NPN | Low noise |
| 2N3904 | NPN | General purpose | S9015 | PNP | Low noise |
| 2N3906 | PNP | General purpose | BC327 | PNP | Medium current |
| 2N5401 | PNP | High voltage | BC337 | NPN | Medium current |
| 2N5551 | NPN | High voltage | BC517 | NPN Darlington | High gain |
| A1015 | PNP | General purpose | BC547 | NPN | General purpose |
| C1815 | NPN | General purpose | BC548 | NPN | General purpose |
| C945 | NPN | General purpose | BC549 | NPN | Low noise |
| S8050 | NPN | Medium current | BC550 | NPN | Low noise |
| S8550 | PNP | Medium current | BC556 | PNP | General purpose |
| S9012 | PNP | General purpose | BC557 | PNP | General purpose |
| S9013 | NPN | General purpose | BC558 | PNP | General purpose |
TO-220 power MOSFETs, 5 of each

| Part | Channel | Max. current | Max. voltage |
|---|---|---|---|
| IRFZ44N | N | 49 A | 55 V |
| IRF3205 | N | 110 A | 55 V |
| IRF510N | N | 5.6 A | 100 V |
| IRF520N | N | 9.7 A | 100 V |
| IRF530N | N | 17 A | 100 V |
| IRF540N | N | 33 A | 100 V |
| IRF9540N | P | 23 A | 100 V |
| IRF640N | N | 18 A | 200 V |
| IRF740 | N | 10 A | 400 V |
| IRF840 | N | 8 A | 500 V |
Current and voltage ratings as printed on the box label (manufacturers' datasheet values).
TO-126 BD transistors, 10 of each

| NPN | PNP complement |
|---|---|
| BD131 | BD132 |
| BD135 | BD136 |
| BD137 | BD138 |
| BD139 | BD140 |
| BD237 | BD238 |
Good to know
- Each kind of transistor has its own compartment; the box labels list the part numbers in English.
- Pinouts differ between families (for example C1815 and 2N3904 are not pin-compatible): check the datasheet before fitting a substitute.
- Power MOSFETs need a heatsink at higher currents, and logic-level drive only fully turns on some types.
- The original box label marks S9013 as PNP; it is an NPN transistor, as listed above.
- Parts are bagged and labelled by value or part number and packed by hand by our supplier, so a bag can occasionally hold a few pieces more or less than listed, or a close substitute value.
- Contains small parts. Not a toy; keep away from young children.
Specs and Docs
- Parts
- 990, through-hole
- Packages
- TO-92, TO-220, TO-126
- Types
- 44
Shipping
Standard shipping: $9.00 for the first item, +$1.80 for each additional item. Free shipping on orders over $260.
We ship worldwide, by default with economical international post (UPU / China Post small packet) to keep shipping costs low. Orders are usually handed to the carrier within 2–5 business days, and economical international post then takes about 10–30 business days to arrive; these are estimates, not guarantees. Delivery time depends on the destination and on postal and customs handling. If you need your order by a certain date, email us before ordering: faster shipping can be arranged, with the extra cost charged at the carrier's actual rate. Items that contain batteries or magnets are marked on their product page and ship by a special carrier line; some countries and regions cannot be reached by that line, and if yours is one of them we refund the order in full.
Customs & duties
Import duties, taxes and customs requirements depend on the destination country, the shipping route and the local customs office, so we cannot say in advance whether any will apply to your parcel. Customs may hold a parcel, ask for more information, or ask for duties or taxes to be paid, even when the declared value is correct. If you have a question about your country, email us before ordering.
See our shipping & returns policy.