| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BD679AS | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 80V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD681S | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 100V | 2.5V @ 30mA, 1.5A | 500µA | 750 @ 1.5A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD677AS | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 60V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD677ASTU | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 60V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD675AS | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 45V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD679ASTU | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 80V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD681STU | FAIRCHILD SEMICONDUCTOR CORP | NPN - Darlington | 4A | 100V | 2.5V @ 30mA, 1.5A | 500µA | 750 @ 1.5A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD679AG | ON SEMICONDUCTOR | NPN - Darlington | 4A | 80V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD679G | ON SEMICONDUCTOR | NPN - Darlington | 4A | 80V | 2.5V @ 30mA, 1.5A | 500µA | 750 @ 1.5A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 | |
| BD676AG | ON SEMICONDUCTOR | PNP - Darlington | 4A | 45V | 2.8V @ 40mA, 2A | 500µA | 750 @ 2A, 3V | 40W | - | Through Hole | TO-225AA, TO-126-3 |
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