| Part Numbers | Manufacturer Name | Datasheet | Transistor Type | Current - Collector (Ic) (Max) | Voltage - Collector Emitter Breakdown (Max) | Vce Saturation (Max) @ Ib, Ic | Current - Collector Cutoff (Max) | DC Current Gain (hFE) (Min) @ Ic, Vce | Power - Max | Frequency - Transition | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STA401A | SANKEN ELECTRIC CO LTD | 4 NPN Darlington (Quad) | 4A | 60V | 2V @ 10mA, 3A | 100µA (ICBO) | 1000 @ 3A, 4V | 4W | - | Through Hole | 10-SIP | |
| STA481A | SANKEN ELECTRIC CO LTD | 4 NPN Darlington (Quad) | 1A | 60V | 1.5V @ 1mA, 500mA | 10µA (ICBO) | 2000 @ 500mA, 4V | 4W | 50MHz | Through Hole | 10-SIP | |
| STA406A | SANKEN ELECTRIC CO LTD | 4 NPN Darlington (Quad) | 6A | 60V | 1.5V @ 10mA, 3A | 100µA (ICBO) | 2000 @ 3A, 2V | 4W | - | Through Hole | 10-SIP | |
| STA471A | SANKEN ELECTRIC CO LTD | 4 NPN Darlington (Quad) | 2A | 60V | 1.5V @ 2mA, 1A | 10µA (ICBO) | 2000 @ 1A, 4V | 4W | 50MHz | Through Hole | 10-SIP | |
| L6221CD | STMICROELECTRONICS | 4 NPN Darlington (Quad) | 1.2A | 60V | 1.4V @ 1A | - | - | - | - | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| L6221CD013TR | STMICROELECTRONICS | 4 NPN Darlington (Quad) | 1.2A | 60V | 1.4V @ 1A | - | - | - | - | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | |
| MP4020(F) | TOSHIBA CORP | 4 NPN Darlington (Quad) | 2A | 60V | 1.5V @ 1mA, 1A | 10µA | 2000 @ 1A, 2V | 2W | 100MHz | Through Hole | 10-SIP |
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