| 型號 | 廠商 | 描述 |
| 3vr3 | TE Connectivity | FILTER LINE 2 STAGE WIRE 3A |
| 3vs1 | TE Connectivity | FILTER LINE 3A FASTONS |
| 3vsk1 | TE Connectivity | FILTER POWER LINE RFI .250 3A |
| 3vv1 | TE Connectivity | FILTER POWER LINE RFI .250 3A |
| 3vw1 | TE Connectivity | FILTER LINE 3A FASTONS |
| 3w1a | TE Connectivity | FILTER LINE RFI POWER 3 AMP |
| 4-1437268-3 [2] | TE Connectivity | CONN CARDEDGE 36DL POS R/A .125 |
| 4-1437504-9 | TE Connectivity | CONN SOCKET TRANSIST 3TERM TO-3 |
| 4-1437569-3 | TE Connectivity | SWITCH PUSH 4PST 5A 250V |
| 4-1571551-7 | TE Connectivity | CONN SOCKET 22POS DIP GOLD T/H |
| 4-1571986-1 [2] | TE Connectivity | SWITCH ROCKER SPDT 5A 120V |
| 4-1734774-0 [2] | TE Connectivity | PCI EXP 2.3L 164 POS BLK 15U" |
| 4-1814655-6 | TE Connectivity | SIP IC SKT 5 SSR SN/SN ROHS |
| 4-640866-8 | TE Connectivity | 18CIR MTA156 P/M EDG/CONN LF |
| 4-640867-8 | TE Connectivity | 18P MTA156 EDGE CONN ASSY LF |
| 400-040-050 [2] | 3M | SOCKET IC DIP MACH LOPRO 40POS |
| 403c11j19m68000 [2] | CTS-Frequency Controls | CRYSTAL 19.68 MHZ 9PF SMD |
| 403c35e27m00000 [2] | CTS-Frequency Controls | CRYSTAL 27.000 MHZ 20PF SMD |
| 4057 | Pomona Electronics | SHIELD BOX BNC 'Y' ADPT BNC F/M |
| 406330-1 | TE Connectivity | CONN PANEL ASSY 24PORT RJ45 |
| 406331-1 | TE Connectivity | CONN PANEL ASSY 48PORT RJ45 |
| 406332-1 [2] | TE Connectivity | CONN PANEL ASSY 96PORT RJ45 |
| 407f39e044m7360 [2] | CTS-Frequency Controls | CRYSTAL 44.736 MHZ 20PF SMD |
| 4116r-3-181/391lf [2] | Bourns Inc. | RES NET MULT OHM 28 RES 16-DIP |
| 4116r-r2r-253lf | Bourns Inc. | RES NET MULT OHM 15 RES 16-DIP |
| 416-er | MG Chemicals | RUB-ON ETCH RESIST SHEET 8 SHTS |
| 416-es [2] | MG Chemicals | KIT ETCHING PCB ECONOMY W/PUMP |
| 41h [2] | Cinch Connectors | PLUG BUTTON 1.25" HOLE |
| 41sm1-h251 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A PCB |
| 41sm1-h2 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A SOLDER |
| 41sm1-h4 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A QC |
| 41sm1-h58 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A PINS |
| 41sm1-t2 | Honeywell Sensing and Control | SWITCH PIN PLUNGER SPDT 11A |
| 41sm25-h2 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A PINS |
| 41sm27-t | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A SOLDER |
| 41sm28-h2 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A SOLDER |
| 41sm28-t2 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A SOLDER |
| 41sm2 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A SOLDER |
| 41sm30-h58 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A PINS |
| 41sm301-t2 | Honeywell Sensing and Control | SWITCH PLUNGER SPDT 11A SOLDER |
| 4226 | Pomona Electronics | ALUM BOX "E" W/CVR & CARD GUIDE |
| 423ac2-e9 | Honeywell Sensing and Control | SWITCH DOOR ROD SPDT 21A QC |
| 425f35b016m0000 [2] | CTS-Frequency Controls | CRYSTAL 16.0000 MHZ 13.0 PF SMD |
| 4310r-101-222 [2] | Bourns Inc. | RES ARRAY 2.2K OHM 9 RES 10-SIP |
| 4384-6 | Pomona Electronics | BOX PLASTIC W/GUIDES & COVER BLU |
| 4416p-2-203 [2] | Bourns Inc. | RES ARRAY 20K OHM 15 RES 16-SOIC |
| 445w35w35m00000 [2] | CTS-Frequency Controls | CRYSTAL 35.00000 MHZ 10PF SMD |
| 44en14-10 | Honeywell Sensing and Control | SEALED AERO SWITCH |
| 450-019 | Stewart Connector | CONN BOOT STRAIN RELIEF RED |
| 450-024 | Stewart Connector | CONN BOOT STRAIN RELIEF CLEAR |