| 
 | 
 
 | 
| T | 
AT&T*, Motorola, Toshiba, Atmel, KEMET, Motorola, SGS, TI, Toshiba | 
| TA | 
Philips, Toshiba | 
| TAA | 
AEG, Amperex, ST, Siemens, Signetics, Telefunken, Philips | 
| TAB | 
Plessey | 
| TAC | 
AVX | 
| TACT | 
TI | 
| TAJ | 
AVX, Motorola | 
| TAJA | 
AVX, Motorola | 
| TAJB | 
AVX | 
| TAJC | 
AVX, Motorola | 
| TAJD | 
AVX, Sprague | 
| TAJE | 
AVX | 
| TAJN | 
AVX | 
| TAP | 
AVX | 
| TAS | 
Toshiba | 
| TB | 
Rohm, Toshiba | 
| TBA | 
AEG, Amperex, ST, Siemens, Signetics, Telefunken, ITT, Philips, SGS | 
| TBAS | 
SGS | 
| TBB | 
Siemens | 
| TBC | 
Toshiba | 
| TC | 
Motorola, Philips, Tamarack, TelCom, Teledyne, Telefunken, Toshiba | 
| TCA | 
AEG, Amperex, ST, Siemens, Signetics, Telefunken, Motorola | 
| TCD | 
Toshiba | 
| TCF | 
Motorola | 
| TCHC | 
Toshiba | 
| TCM | 
TI | 
| TCS | 
Toshiba | 
| TD | 
Intel, SGS, Toshiba | 
| TDA | 
AEG, Amperex, Motorola, Philips, Samsung, SGS, Siemens, Signetics, ST, Telefunken, Toshiba | 
| TDAB | 
Philips | 
| TDC | 
TI, TRW | 
| TDE | 
Philips, SGS | 
| TDF | 
ST/Mostek | 
| TE | 
Intel, NEC, Toshiba | 
| TEA | 
AEG, Amperex, Motorola, Philips, Samsung, SGS, Siemens, Signetics, SMC, ST, Telefunken, Toshiba | 
| TEB | 
SGS | 
| TEC | 
TI, Toshiba | 
| TEMSV | 
NEC | 
| TESVA | 
NEC | 
| TESVC | 
NEC | 
| TEX | 
TI | 
| TF | 
Intel | 
| TFK | 
Telefunken (later Temix, now Vishay) | 
| TGL | 
GI | 
| TH | 
Maxim, Toshiba | 
| THBT | 
SGS | 
| THC | 
TI, TRW | 
| THD | 
SGS | 
| THM | 
Toshiba | 
| THS | 
Toshiba | 
| THYTF | 
Toshiba | 
| TI | 
TI | 
| TIBPA | 
TI | 
| TIBPAL | 
TI | 
| TIBPSG | 
TI | 
| TICP | 
SGS | 
| TIL | 
Motorola, QT, TI | 
| TIP | 
GI, Harris, Motorola, Philips, Samsung, Sanyo, SGS, TI, Toshiba | 
| TIPL | 
TI | 
| TISP | 
TI | 
| TK | 
Toko America, Toshiba | 
| TKA | 
SGS | 
| TKP | 
Toshiba | 
| TL | 
Motorola, NS, Samsung, SGS, TI, Toshiba | 
| TLA | 
Motorola | 
| TLC | 
NS, SGS, TI, Toshiba | 
| TLE | 
TI | 
| TLG | 
Toshiba | 
| TLMH | 
Siliconix | 
| TLMY | 
Temic | 
| TLN | 
Toshiba | 
| TLO | 
SGS, TI, Toshiba | 
| TLP | 
Motorola, SGS, Toshiba | 
| TLR | 
Toshiba | 
| TLUR | 
Toshiba | 
| TLY | 
Toshiba | 
| TM | 
TI | 
| TMBYV | 
Motorola, SGS | 
| TMC | 
LSILogic, TRW | 
| TMCMB | 
Hitachi | 
| TMCSC | 
Hitachi | 
| TMD | 
TI | 
| TMF | 
Toshiba | 
| TML | 
Telmos | 
| TMM | 
Toshiba | 
| TMP | 
AD, TI, Toshiba, Toshiba | 
| TMPF | 
Sprague | 
| TMPN | 
Toshiba | 
| TMPZ | 
Toshiba | 
| TMS | 
TI, Toshiba | 
| TMX | 
TI | 
| TN | 
Intel, Supertex, Telefunken | 
| TND | 
Allegro | 
| TNN | 
Supertex | 
| TO | 
SGS | 
| TOA | 
SGS | 
| TOCP | 
Toshiba | 
| TOP | 
Power Integrations | 
| TORX | 
Toshiba | 
| TOTX | 
Toshiba | 
| TP | 
NS, Siliconix, Teledyne, TI, Toshiba | 
| TPA | 
SGS | 
| TPB | 
SGS | 
| TPDV | 
SGS | 
| TPFPC | 
TRW | 
| TPIC | 
TI | 
| TPQ | 
Allegro, Sprague | 
| TPS | 
SGS, TI, Toshiba | 
| TPSD | 
AVX | 
| TPSE | 
AVX | 
| TQ | 
AROM | 
| TR | 
Rockwell | 
| TRA | 
Motorola, Toshiba | 
| TRF | 
Motorola | 
| TRFZ | 
Samsung | 
| TRPBC | 
IR | 
| TS | 
Intel, SGS, ST/Mostek | 
| TSA | 
Philips, SGS | 
| TSC | 
Motorola, Teledyne | 
| TSF | 
Sanyo | 
| TSGB | 
SGS, Thomson | 
| TSL | 
TI | 
| TTCA | 
Philips | 
| TVA | 
Motorola | 
| TVP | 
TI | 
| TX | 
TI | 
| TXC | 
TranSwitch | 
| TXN | 
SGS | 
| TYA | 
Motorola | 
| TYN | 
SGS | 
| TYND | 
SGS | 
| TYP | 
SGS | 
| TZMC | 
Telefunken |