| 型號 | 廠商 | 描述 |
| 20vr6 | TE Connectivity | FILTER LINE 2 STAGE STUD 20A |
| 20vs1 | TE Connectivity | FILTER LINE FASTON 20A |
| 20vsb1 [2] | TE Connectivity | FILTER LINE 20A .25" QC TERM STD |
| 20vsk6 | TE Connectivity | FILTER LINE 20A STUDS |
| 20vt6 [2] | TE Connectivity | FILTER PWR LINE RFI STUD 20A |
| 20vv1 | TE Connectivity | FILTER LINE 20A FASTONS |
| 20vw1 | TE Connectivity | FILTER LINE 20A FASTONS |
| 20w1 | TE Connectivity | FILTER RFI LINE FLANGE 20AMP |
| 210227-4 | TE Connectivity | CONN SOCKET ZIF 169POS 17X17 T/H |
| 2103 | Pomona Electronics | PHENOLIC BOX WITH COVER |
| 2104 | Pomona Electronics | PHENOLIC BOX WITH COVER |
| 2105 | Pomona Electronics | PHENOLIC BOX WITH COVER |
| 210748-5 | TE Connectivity | CONN 6 SOCKETS CLOSED FRAME PGA |
| 21137na [2] | APEM Components, LLC | SWITCH TOGGLE |
| 216-5205-01 [2] | 3M | CONN SOCKET QFN 16 POS T/H |
| 21cx16 | Honeywell Sensing and Control | SWITCH LIMIT EXPLOSION PROOF |
| 21cx6 | Honeywell Sensing and Control | SWITCH LIMIT EXPLOSION PROOF |
| 21sm1-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 5A SOLDER |
| 21sm144-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 5A SOLDER |
| 21sm144 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 5A SOLDER |
| 21sm157-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 10A SOLDER |
| 21sm284-t2 | Honeywell Sensing and Control | SWITCH LIMIT PIN PLUNGER SPDT 5A |
| 21sm284 | Honeywell Sensing and Control | SWITCH LIMIT SPDT 5A PIN PLUNGER |
| 21sx14-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 7A SOLDER |
| 21sx39-h58 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 7A PINS |
| 21sx39-t2 | Honeywell Sensing and Control | SWITCH LIMIT PIN PLUNGER SPDT 7A |
| 22-0394 | GC Electronics | KIT ETCHING SYSTEM PCB PRO POWER |
| 221,gy bulk [2] | Serpac | BOX 4.10X2.60X1.51 9V GRAY |
| 221i,pc,bk [2] | Serpac | BOX 4.10X2.60X1.51 9V BLACK |
| 221r,gy [2] | Serpac | BOX 4.10X2.60X1.51 9V GRAY |
| 221ri,gy [2] | Serpac | BOX 4.10X2.60X1.51 9V GRAY |
| 222,gy [2] | Serpac | BOX 4.10X2.60X2.00 9V GRAY |
| 2224 | Pomona Electronics | PHENOLIC BOX BANAN JACK-DBL PLUG |
| 222i,gy [2] | Serpac | BOX 4.10X2.60X2.00 9V GRAY |
| 222r,gy [2] | Serpac | BOX 4.10X2.60X2.00 9V GRAY |
| 222ri,gy [2] | Serpac | BOX 4.10X2.60X2.00 9V GRAY |
| 223,gy [2] | Serpac | BOX 4.10X2.60X2.50 9V GRAY |
| 223i,gy [2] | Serpac | BOX 4.10X2.60X2.50 9V GRAY |
| 223r,gy [2] | Serpac | BOX 4.10X2.60X2.50 9V GRAY |
| 223ri,gy [2] | Serpac | BOX 4.10X2.60X2.50 9V GRAY |
| 2259 | Pomona Electronics | BOX PHENOLIC W/COVER&POSTS&PLUGS |
| 228-1290-00-0602j [2] | 3M | SOCKET SHRINK DIP 28POS .070" |
| 228-5204-01 [2] | 3M | CONN SOCKET QFN 28 POS T/H |
| 228-7396-55-1902 [2] | 3M | SOCKET SOIC 28POS LIDDED |
| 22ac1-d8 | Honeywell Sensing and Control | SWITCH DOOR ROD SPDT 15A QC |
| 22ac1 | Honeywell Sensing and Control | SWTCH ROD ACT SPDT 15A SCRW TERM |
| 22ac2-ul | Honeywell Sensing and Control | SWITCH DOOR ROD SPDT 15A QC |
| 22sm1-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 5A SOLDER |
| 22sm157-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 10A SOLDER |
| 22sm22-h58 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 5A PINS |