| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Series | Package/Case | Packaging | Product Status | Transistor Type | Voltage - Collector Emitter Breakdown (Max) | Frequency - Transition | Noise Figure (dB Typ @ f) | Gain | Power - Max | DC Current Gain (hFE) (Min) @ Ic, Vce | Current - Collector (Ic) (Max) | Operating Temperature | Grade | Qualification | Mounting Type | Supplier Device Package | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|  | SD1731RF TRANS NPN 55V M174 STMicroelectronics | 3,300 |  |   Datasheet | - | M174 | Tray | Obsolete | NPN | 55V | - | - | 13dB | 233W | 15 @ 10A, 6V | 20A | 200°C (TJ) | - | - | Surface Mount | M174 | 
|  | SD1726RF TRANS NPN 55V M174 STMicroelectronics | 4,514 |  |   Datasheet | - | M174 | Tray | Obsolete | NPN | 55V | - | - | 14dB | 318W | 18 @ 1.4A, 6V | 20A | 200°C (TJ) | - | - | Surface Mount | M174 | 
|  | SD1728RF TRANS NPN 55V M177 STMicroelectronics | 7,316 |  |   Datasheet | - | M177 | Box | Obsolete | NPN | 55V | - | - | 15dB ~ 17dB | 330W | 23 @ 10A, 6V | 40A | 200°C (TJ) | - | - | Surface Mount | M177 | 
|   | SD1274-01RF TRANS NPN 16V M113 STMicroelectronics | 7,614 |  |   Datasheet | - | M113 | Box | Obsolete | NPN | 16V | - | - | 10dB | 70W | 20 @ 250mA, 5V | 8A | - | - | - | Surface Mount | M113 | 
|   | SD1275-01RF TRANS NPN 16V M113 STMicroelectronics | 7,116 |  |   Datasheet | - | M113 | Box | Obsolete | NPN | 16V | - | - | 9dB | 70W | 20 @ 250mA, 5V | 8A | - | - | - | Surface Mount | M113 | 
|   | SD1727RF TRANS NPN 55V M164 STMicroelectronics | 2,737 |  |   Datasheet | - | M164 | Box | Obsolete | NPN | 55V | - | - | 14dB | 233W | 18 @ 1.4A, 6V | 10A | 200°C (TJ) | - | - | Chassis, Stud Mount | M164 |