| BFY51 |  | Central Semiconductor | Leaded Small Signal Transistor General Purpose - Pol=NPN / Pkg=TO39 / Vceo=30 / Ic=1 / Hfe=40min / fT(Hz)=60M / Pwr(W)=0.8 | Original | PDF | 56.06KB | 1 | 
| BFY51 |  | Philips Semiconductors | NPN medium power transistors - Pol=NPN / Pkg=TO39 / Vceo=30 / Ic=1 / Hfe=40min / fT(Hz)=60M / Pwr(W)=0.8 | Original | PDF | 53.35KB | 8 | 
| BFY51 |  | Semelab | Bipolar NPN Device in a Hermetically Sealed TO39 Metal Package - Pol=NPN / Pkg=TO39 / Vceo=30 / Ic=1 / Hfe=40min / fT(Hz)=60M / Pwr(W)=0.8 | Original | PDF | 10.8KB | 1 | 
| BFY51 |  | STMicroelectronics | MEDIUM POWER AMPLIFIER | Original | PDF | 45.9KB | 5 | 
| BFY51 |  | Continental Device India | Semiconductor Device Data Book 1996 | Scan | PDF | 98.17KB | 1 | 
| BFY51 |  | Crimson Semiconductor | Transistor Selection Guide | Scan | PDF | 1.48MB | 36 | 
| BFY51 |  | Diode Transistor | SMALL SIGNAL TRANSISTORS | Scan | PDF | 72.84KB | 1 | 
| BFY51 |  | Fairchild Semiconductor | Misc. Data Book Scans 1975/76 | Scan | PDF | 141.58KB | 4 | 
| BFY51 |  | Fairchild Semiconductor | Full Line Condensed Catalogue 1977 | Scan | PDF | 53KB | 1 | 
| BFY51 |  | Ferranti Semiconductors | Shortform Data Book 1971 | Short Form | PDF | 81.15KB | 1 | 
| BFY51 |  | Ferranti Semiconductors | Quick Reference Guide 1985 | Scan | PDF | 108.71KB | 3 | 
| BFY51 |  | Ferranti Semiconductors | Metal Can Transistors (Short Form) | Scan | PDF | 109.96KB | 4 | 
| BFY51 |  | ITT Semiconductors | Semiconductor Summary 1969 | Scan | PDF | 53.1KB | 1 | 
| BFY51 |  | Micro Electronics | Semiconductor Device Data Book | Scan | PDF | 59.11KB | 1 | 
| 
 | 
| BFY51 |  | Micro Electronics | Semiconductor Devices | Scan | PDF | 78.4KB | 1 | 
| BFY51 |  | Motorola | Motorola Transistor Datasheets | Scan | PDF | 56.17KB | 2 | 
| BFY51 |  | Motorola | The European Selection Data Book 1976 | Scan | PDF | 67.99KB | 2 | 
| BFY51 |  | Motorola | European Master Selection Guide 1986 | Scan | PDF | 40.5KB | 1 | 
| BFY51 |  | Mullard | Quick Reference Guide 1977/78 | Scan | PDF | 440.61KB | 16 | 
| BFY51 |  | Unknown | Semiconductor Master Cross Reference Guide | Scan | PDF | 117.91KB | 1 |