| 334401 | BTX18-300 | SILICON THYRISTORS | Comset Semiconductors |
| 334402 | BTX18-300 | Thyristor | mble |
| 334403 | BTX18-300 | Thyristors and stacks thyristors | Mullard |
| 334404 | BTX18-300 | Silicon Thyristors 300V | Philips |
| 334405 | BTX18-400 | SILICON THYRISTORS | Comset Semiconductors |
| 334406 | BTX18-400 | Thyristor | mble |
| 334407 | BTX18-400 | Thyristors and stacks thyristors | Mullard |
| 334408 | BTX18-400 | Silicon Thyristors 400V | Philips |
| 334409 | BTX18-500 | SILICON THYRISTORS | Comset Semiconductors |
| 334410 | BTX18-500 | Thyristor | mble |
| 334411 | BTX18-500 | Thyristors and stacks thyristors | Mullard |
| 334412 | BTX18-500 | Silicon Thyristors 500V | Philips |
| 334413 | BTX35 | Controlled Avalanche Thyristor, superseded by the BTW47 series | Philips |
| 334414 | BTX36 | Controlled Avalanche Thyristor, superseded by the BTW47 series | Philips |
| 334415 | BTX37 | Controlled Avalanche Thyristor, superseded by the BTW24 series | Philips |
| 334416 | BTX38 | Controlled Avalanche Thyristor, superseded by the BTW23 series | Philips |
| 334417 | BTX41 | Silicon Thyristor | Philips |
| 334418 | BTX41-1000R | Avalanche thyristor | mble |
| 334419 | BTX41-1000R | Silicon Thyristor 1000V | Philips |
|
| 334420 | BTX41-1200R | Avalanche thyristor | mble |
| 334421 | BTX41-1200R | Silicon Thyristor 1200V | Philips |
| 334422 | BTX41-1400R | Avalanche thyristor | mble |
| 334423 | BTX41-1400R | Silicon Thyristor 1400V | Philips |
| 334424 | BTX41-1600R | Avalanche thyristor | mble |
| 334425 | BTX41-1600R | Silicon Thyristor 1600V | Philips |
| 334426 | BTX41-800R | Avalanche thyristor | mble |
| 334427 | BTX41-800R | Silicon Thyristor 800V | Philips |
| 334428 | BTX41-CASE | The shape and dimensions of the case | mble |
| 334429 | BTX47 | Controlled Avalanche Thyristor, superseded by the BTW47 series | Philips |
| 334430 | BTX48 | Controlled Avalanche Thyristor, superseded by the BTW92 series | Philips |
| 334431 | BTX49 | Controlled Avalanche Thyristor, superseded by the BTW23 series | Philips |
| 334432 | BTX50 | Controlled Avalanche Thyristor, superseded by the BTW23 series | Philips |
| 334433 | BTX68 | Controlled Avalanche Thyristor, superseded by the BTY79 series | Philips |
| 334434 | BTX81 | Silicon Thyristor, superseded by the BTW92 series | Philips |
| 334435 | BTX81-100R | Thyristor | Mullard |
| 334436 | BTX81-200R | Thyristor | Mullard |
| 334437 | BTX81-300R | Thyristor | Mullard |
| 334438 | BTX81-400R | Thyristor | Mullard |
| 334439 | BTX81-500R | Thyristor | Mullard |
| 334440 | BTX81-600R | Thyristor | Mullard |
