| Part Number | BDT61A-S | BDT61B-S |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single |
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| Product Status | Obsolete | Obsolete |
| Transistor Type | NPN - Darlington | NPN - Darlington |
| Current - Collector (Ic) (Max) | 4 A | 4 A |
| Voltage - Collector Emitter Breakdown (Max) | 80 V | 100 V |
| Vce Saturation (Max) @ Ib, Ic | 2.5V @ 6mA, 1.5A | 2.5V @ 6mA, 1.5A |
| Current - Collector Cutoff (Max) | 500µA | 500µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 750 @ 1.5A, 3V | 750 @ 1.5A, 3V |
| Power - Max | 2 W | 2 W |
| Frequency - Transition | - | - |
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-220-3 | TO-220-3 |
| Supplier Device Package | TO-220 | TO-220 |