| BC637 |  | Fairchild Semiconductor | NPN Epitaxial Silicon Transistor | Original | PDF | 35.32KB | 4 | 
| BC637 |  | Fairchild Semiconductor | NPN Epitaxial Silicon Transistor | Original | PDF | 54.78KB | 4 | 
| BC637 |  | Fairchild Semiconductor | NPN EPITAXIAL SILICON TRANSISTOR | Original | PDF | 61.08KB | 3 | 
| BC637 |  | Korea Electronics | TRANS GP BJT NPN 60V 0.5A 3TO-92 | Original | PDF | 60.44KB | 1 | 
| BC637 |  | Motorola | High Current Transistors | Original | PDF | 118.75KB | 4 | 
| BC637 |  | On Semiconductor | High Current Transistors | Original | PDF | 54.71KB | 5 | 
| BC637 |  | On Semiconductor | High Current Transistor | Original | PDF | 57.89KB | 4 | 
| BC637 |  | Philips Semiconductors | Small-signal Transistors | Original | PDF | 4.61KB | 1 | 
| BC637 |  | Philips Semiconductors | NPN medium power transistors | Original | PDF | 47.87KB | 8 | 
| BC637 |  | Siemens | NPN Silicon AF Transistor | Original | PDF | 260.91KB | 10 | 
| BC637 |  | Siemens | Transistor / Diode Selection Guide | Original | PDF | 27.22KB | 3 | 
| BC637 |  | Siemens | Cross Reference Guide 1998 | Original | PDF | 27.35KB | 7 | 
| BC637 |  | Siemens | NPN Silicon AF Transistors (High current gain High collector current) | Original | PDF | 129.63KB | 5 | 
| BC637 |  | Siemens | RF-Transistors, MMICs, RF-Diodes, AF-Diodes, AF-Schottky Diodes and RF-Schottky Diodes Guide | Original | PDF | 465.63KB | 37 | 
| 
 | 
| BC637 |  | Various Russian Datasheets | Transistor | Original | PDF | 84.39KB | 8 | 
| BC637 |  | Bharat Electronics | Shortform Transistor Data | Short Form | PDF | 59.45KB | 1 | 
| BC637 |  | Continental Device India | Semiconductor Device Data Book 1996 | Scan | PDF | 103.74KB | 1 | 
| BC637 |  | Crimson Semiconductor | Transistor Selection Guide | Scan | PDF | 1.48MB | 36 | 
| BC637 |  | Korea Electronics | General Purpose Transistor | Scan | PDF | 106.19KB | 1 | 
| BC637 |  | Micro Electronics | Silicon Transistors | Scan | PDF | 189.56KB | 2 |