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| Part Number | MPSA27 | MPSA28 | MPSA29 | MPSA27G | MPSA20 |
|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | NTE Electronics, Inc | onsemi | onsemi | NTE Electronics, Inc |
| Product Status | Obsolete | Active | Active | Obsolete | Active |
| Transistor Type | NPN - Darlington | NPN - Darlington | NPN - Darlington | NPN - Darlington | NPN |
| Current - Collector (Ic) (Max) | 500 mA | 500 mA | 800 mA | 500 mA | 100 mA |
| Voltage - Collector Emitter Breakdown (Max) | 60 V | 80 V | 100 V | 60 V | 40 V |
| Vce Saturation (Max) @ Ib, Ic | 1.5V @ 100µA, 100mA | 1.5V @ 100µA, 100mA | 1.5V @ 100µA, 100mA | 1.5V @ 100µA, 100mA | 250mV @ 1mA, 10mA |
| Current - Collector Cutoff (Max) | 500nA | 500nA | 500nA | 500nA | 100nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 10000 @ 100mA, 5V | 10000 @ 100mA, 5V | 10000 @ 100mA, 5V | 10000 @ 100mA, 5V | 40 @ 5mA, 10V |
| Power - Max | 625 mW | 625 mW | 625 mW | 625 mW | 625 mW |
| Frequency - Transition | - | 200MHz | 125MHz | - | 125MHz |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads | TO-226-3, TO-92-3 Long Body | TO-226-3, TO-92-3 (TO-226AA) | TO-226-3, TO-92-3 Long Body | TO-226-3, TO-92-3 Long Body |
| Supplier Device Package | TO-92 (TO-226) | TO-92 (TO-226) | TO-92-3 | TO-92 (TO-226) | TO-92 (TO-226) |