| Distributor | SKU | Stock | Cost | |
|---|---|---|---|---|
| DigiKey | 2156-TIP31ATU-FS-ND | 3252 | $0.32 | Buy |
| DigiKey | TIP31A-ND | 1855 | $0.54 | Buy |
| Mouser Electronics | 610-TIP31A | 380 | $1.14 | Buy |
| Mouser Electronics | 511-TIP31A | 3196 | $0.83 | Buy |
| Mouser Electronics | 512-TIP31A | 1641 | $0.52 | Buy |
| Win Source | TIP31A | 93400 | $0.31 | Buy |
| AVNET Europe | TIP31A | 100 | * $0.56 | Buy |
| AVNET Asia Pacific | TIP31A | $0.27 | Buy | |
| Utmel | TIP31A | 27 | $0.57 | Buy |
Trans GP BJT NPN 60V 3A 3-Pin(3+Tab) TO-220AB Bulk