| Image | Manufacturer | Part Number | Description |
 | Microsemi | JANTX2N5237 | Trans GP BJT NPN 120V 10A 3-Pin TO-5 |
 | Microsemi | 2N5237JANTXV | Trans GP BJT NPN 120V 10A 3-Pin TO-5 |
 | Microsemi | 2N5237 | Trans GP BJT NPN 120V 10A 3-Pin TO-5 |
 | Microsemi | 2N5237JANTX | Trans GP BJT NPN 120V 10A 3-Pin TO-5 |
 | Microsemi | 2N5237JAN | Trans GP BJT NPN 120V 10A 3-Pin TO-5 |
 | Microsemi | JANTXV2N5237 | Trans GP BJT NPN 120V 10A 3-Pin TO-5 |
 | Microsemi | JANTXV2N4150 | Trans GP BJT NPN 70V 10A 3-Pin TO-5 |
 | Microsemi | 2N5237S | Trans GP BJT NPN 120V 10A 3-Pin TO-39 |
 | Microsemi | JAN2N5237S | Trans GP BJT NPN 120V 10A 3-Pin TO-39 |
 | Microsemi | JANTXV2N5237S | Trans GP BJT NPN 120V 10A 3-Pin TO-39 |
 | Microsemi | 2N5237SJAN | Trans GP BJT NPN 120V 10A 3-Pin TO-39 |
 | Diodes Zetex | IMX8-7-F | Trans GP BJT NPN 120V 0.05A 6-Pin SOT-26 T/R |
| | Semelab (TT Electronics) | BSW67A | Trans GP BJT NPN 120V 2A 3-Pin TO-39 |
 | Fairchild Semiconductor | MJE3055TTU | Trans GP BJT NPN 60V 10A 3-Pin(3+Tab) TO-220 Rail |
 | Fairchild Semiconductor | MJD3055TF | Trans GP BJT NPN 60V 10A 3-Pin(2+Tab) DPAK T/R |
 | Microsemi | 2N2222A | Trans GP BJT NPN 50V 0.8A 3-Pin TO-18 |
 | Diodes Zetex | ZTX694B | Trans GP BJT NPN 120V 0.5A 3-Pin E-Line |
 | Diodes Zetex | FMMT494TA | Trans GP BJT NPN 120V 1A 3-Pin SOT-23 T/R |
 | Fairchild Semiconductor | FJV1845FMTF | Trans GP BJT NPN 120V 0.05A 3-Pin SOT-23 T/R |
 | Microsemi | 2N1893JANTX | Trans GP BJT NPN 80V 0.5A 3-Pin TO-5 |
 | Microsemi | 2N3421JANTXV | Trans GP BJT NPN 80V 3A 3-Pin TO-5 |
 | Microsemi | 2N5667JANTX | Trans GP BJT NPN 300V 5A 3-Pin TO-5 |
 | Microsemi | 2N5667JANTXV | Trans GP BJT NPN 300V 5A 3-Pin TO-5 |
 | Microsemi | 2N3419JANTXV | Trans GP BJT NPN 80V 3A 3-Pin TO-5 |
 | Microsemi | 2N3421JANTX | Trans GP BJT NPN 80V 3A 3-Pin TO-5 |