Soldering switches onto printed circuit boards (PCBs), especially multilayer ones, requires careful attention to prevent damage and ensure proper functionality. Here are some guidelines and techniques for Omron Electronics Inc. tactile switches to consider before starting the soldering process.
Pre-Soldering Considerations
Before soldering a switch onto a multilayer PCB, it’s crucial to test and confirm that the soldering process can be executed properly. Improper soldering can deform the switch due to heat, affecting the pattern or land pads of the PCB.
To minimize risks, do not solder the switch more than twice, including any necessary corrections. Allow an interval of at least five minutes between the first and second soldering attempts.
1. Automatic Soldering Bath
Applicable Series: B3F, B3W, B3WN, B3M, B3J
- Soldering Temperature: 260°C max
- Soldering Time: Maximum of 5 seconds for a 1.6 mm thick single-sided PCB
- Preheating Temperature: Maximum of 100°C (ambient temperature)
- Preheating Time: Within 60 seconds
Ensure that no flux rises above the level of the PCB. If flux overflows onto the mounting surface, it may enter the switch and cause malfunctions.
2. Reflow Soldering (Surface Mounting)
Solder the terminations within the specified heat curve for each series.
Applicable Series: B3S, B3SN, B3FS
Note that the peak temperature may vary depending on the reflow bath used, so confirm the conditions for your specific process beforehand. Avoid using an automatic soldering bath for surface-mounted switches, as the solder gas or flux may enter the switch and interfere with the plunger operation.
3. Manual Soldering (Applicable to All Models)
- Soldering Temperature: Maximum of 350°C at the tip of the soldering iron
- Soldering Time: Maximum of 3 seconds for a 1.6 mm thick single-sided PCB
Before soldering, ensure there is no unnecessary space between the switch and the PCB. This prevents misalignment and ensures proper contact and operation.
By following these guidelines, you can achieve reliable and durable solder connections for switches on various types of PCBs. Proper preparation and adherence to recommended practices will help prevent damage and ensure the longevity and functionality of your devices.
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| SW400-ND | B3F-1000 |
| SW405-ND | B3F-1052 |
| SW414-ND | B3F-4055 |
| SW263CT-ND,SW263TB-ND | B3F-6000 |
| SW407-ND | B3F-3120 |
| SW413-ND | B3F-4050 |
| SW1064TR-ND,SW1064CT-ND,SW1064DKR-ND | B3SL-1002P |
| SW423TR-ND,SW423CT-ND,SW423DKR-ND | B3FS-1000P |
| SW424TR-ND,SW424CT-ND,SW424DKR-ND | B3FS-1002P |
| SW950-ND | B3F-1006 |
| SW838-ND | B3W-4055 |
| SW415-ND | B3S-1000 |
| SW837TR-ND,SW837CT-ND,SW837DKR-ND | B3S-1002P |
| Z8098TR-ND,Z8098CT-ND,Z8098DKR-ND | B3SE-1002P |
| SW836TR-ND,SW836CT-ND,SW836DKR-ND | B3S-1000P |
| SW1021TR-ND,SW1021CT-ND,SW1021DKR-ND | B3U-1100P |
| SW1143TR-ND,SW1143CT-ND,SW1143DKR-ND | B3U-1000P-B |
| SW1022TR-ND,SW1022CT-ND,SW1022DKR-ND | B3U-3000P |
| SW261TR-ND,SW261CT-ND,SW261DKR-ND | B3SN-3012P |
| SW1020TR-ND,SW1020CT-ND,SW1020DKR-ND | B3U-1000P |
| SW1103TR-ND,SW1103CT-ND,SW1103DKR-ND | B3U-3100P-B |
| Z5350TR-ND,Z5350CT-ND,Z5350DKR-ND | B3FS-1050P |
| Z4376TR-ND,Z4376CT-ND,Z4376DKR-ND | B3FS-4055P |
| SW1392TR-ND,SW1392CT-ND,SW1392DKR-ND | B3FS-1052P |
| SW1038-ND | B3W-9000-RG2N |
| SW1109-ND | B3W-9010-RG2N |
| SW794-ND | B3F-1025 |
| B3F-1075-ND | B3F-1075 |
| SW410-ND | B3F-3152 |
| SW408-ND | B3F-3122 |
| SW793-ND | B3F-1005 |
| SW401-ND | B3F-1002 |
| SW402-ND | B3F-1020 |
| SW850-ND | B3F-1152 |
| SW403-ND | B3F-1022 |
| SW961-ND | B3F-1102 |
| SW404-ND | B3F-1050 |
| SW1177-ND | B3F-1060 |
| SW851-ND | B3F-3125 |
| SW1051-ND | B3F-3105 |
| SW264CT-ND,SW264TB-ND | B3F-6022 |
| SW406-ND | B3F-1070 |
| Z5199-ND | B3FS-1000 |
| SW1236-ND | B3FS-1002 |
| SW796CT-ND,SW796TB-ND | B3F-6020 |
| SW1178-ND | B3F-1062 |
| SW1237TR-ND,SW1237CT-ND,SW1237DKR-ND | B3FS-1012P |
| SW798CT-ND,SW798TB-ND | B3F-6050 |
| SW419-ND | B3W-1050 |
| SW420-ND | B3W-1052 |
| SW417-ND | B3W-1000 |
| SW971-ND | B3S-1100 |
| SW1049-ND | B3F-3100 |
| SW409-ND | B3F-3150 |
| SW1050-ND | B3F-3102 |
| SW844TR-ND,SW844CT-ND,SW844DKR-ND | B3S-1100P |
| SW411-ND | B3F-4000 |
| SW412-ND | B3F-4005 |
| SW795-ND | B3F-1055 |
| SW1141-ND | B3FS-1010 |
| SW1052-ND | B3F-3155 |
| SW800-ND | B3F-5000 |
| SW1082-ND | B3FS-1012 |
| SW422-ND | B3W-4050 |
| SW976-ND | B3W-4005 |
| Z8524TR-ND,Z8524CT-ND,Z8524DKR-ND | B3FS-1015P |
| SW1256TR-ND,SW1256CT-ND,SW1256DKR-ND | B3U-3000P-B |
| SW418-ND | B3W-1002 |
| SW416-ND | B3S-1002 |
| SW1440TR-ND,SW1440CT-ND,SW1440DKR-ND | B3FS-1010P |
| SW801-ND | B3F-5050 |
| SW1451TR-ND,SW1451CT-ND,SW1451DKR-ND | B3U-1100PM |
| SW1176-ND | B3F-1026 |
| SW425CT-ND,SW425TB-ND | B3WN-6002 |
| SW1065TR-ND,SW1065CT-ND,SW1065DKR-ND | B3SL-1022P |
| SW1203TR-ND,SW1203CT-ND,SW1203DKR-ND | B3SL-1005P |
| SW856-ND | B3W-4155 |
| SW1202TR-ND,SW1202CT-ND,SW1202DKR-ND | B3SL-1025P |
| SW1104TR-ND,SW1104CT-ND,SW1104DKR-ND | B3U-1100P-B |
| SW1023TR-ND,SW1023CT-ND,SW1023DKR-ND | B3U-3100P |
| SW421-ND | B3W-4000 |
| Z4427-ND | B3FS-1005 |
| SW262TR-ND,SW262CT-ND,SW262DKR-ND | B3SN-3112P |
| Z5200-ND | B3SN-3112 |
| SW1142-ND | B3SN-3012 |
| Z8276TR-ND,Z8276CT-ND,Z8276DKR-ND | B3U-3000PM-B |
| Z8447TR-ND,Z8447CT-ND,Z8447DKR-ND | B3U-3000PM |
| 39-B3U-3100PMTR-ND,39-B3U-3100PMCT-ND,39-B3U-3100PMDKR-ND | B3U-3100PM |
| Z4374TR-ND,Z4374CT-ND,Z4374DKR-ND | B3FS-4005P |
| SW1219TR-ND,SW1219CT-ND,SW1219DKR-ND | B3AL-1003P |
| SW1216TR-ND,SW1216CT-ND,SW1216DKR-ND | B3AL-1000P |
| SW792-ND | B3FS-1052 |
| SW1278TR-ND,SW1278CT-ND,SW1278DKR-ND | B3FS-4002P |
| SW791-ND | B3FS-1050 |
| SW1218TR-ND,SW1218CT-ND,SW1218DKR-ND | B3AL-1002P |
| SW1217TR-ND,SW1217CT-ND,SW1217DKR-ND | B3AL-1001P |
| Z7870TR-ND,Z7870CT-ND,Z7870DKR-ND | B3AL-1004P |
| SW788-ND | B3F-1022-G |
| SW1040-ND | B3W-9000-R1N |
| SW1110-ND | B3W-9010-B1N |
| SW960-ND | B3F-1100 |
| Z6430-ND | B3F-1110 |
| SW962-ND | B3F-1120 |
| SW1179-ND | B3F-1072 |
| Z10708-ND | B3F-1105 |
| SW849-ND | B3F-1122 |
| SW964-ND | B3F-1150 |
| SW963-ND | B3F-1125 |
| Z10709-ND | B3F-1155 |
| SW973-ND | B3W-1102 |
| SW974-ND | B3W-1150 |
| SW975-ND | B3W-1152 |
| SW972-ND | B3S-1102 |
| Z4694-ND | B3W-1022 |
| SW799CT-ND,SW799TB-ND | B3F-6052 |
| SW967-ND | B3F-4155 |
| SW835-ND | B3F-4150 |
| Z6055-ND | B3W-4050S |
| SW853-ND | B3W-1100 |
| SW839-ND | B3W-4150 |
| SW1238TR-ND,SW1238CT-ND,SW1238DKR-ND | B3S-1102P |
| Z8097-ND | B3SE-1002 |
| 39-B3W1000S-ND | B3W1000S |
| B3W-4000S-ND | B3W-4000S |
| 39-B3FS-1005PTR-ND,39-B3FS-1005PCT-ND,39-B3FS-1005PDKR-ND | B3FS-1005P |
| Z5201TR-ND,Z5201CT-ND,Z5201DKR-ND | B3U-3100PM-B |
| Z7816TR-ND,Z7816CT-ND,Z7816DKR-ND | B3AL-1005P |
| SW787-ND | B3F-1002-G |
| Z4375TR-ND,Z4375CT-ND,Z4375DKR-ND | B3FS-4052P |
| Z7813TR-ND,Z7813CT-ND,Z7813DKR-ND | B3AL-1002P-MS |
| 39-B3F-1052-G-ND | B3F-1052-G |
| SW1034-ND | B3W-9000-R1R |
| SW969-ND | B3F-5051 |
| SW968-ND | B3F-5001 |
| SW1041-ND | B3W-9000-Y1N |
| SW1042-ND | B3W-9000-G1N |
| Z12907-ND | B3W-9002-Y1C |
| Z12206-ND | B3W-9002-R1N |
| SW1036-ND | B3W-9000-Y1Y |
| Z12203-ND | B3W-9002-G1C |
| SW1035-ND | B3W-9000-G1G |
| Z12945-ND | B3W-9012-Y2N |
| Z12914-ND | B3W-9010-G2G |
| Z12915-ND | B3W-9010-G2N |
| Z12905-ND | B3W-9002-RG2C |
| SW1039-ND | B3W-9000-B1N |
| Z12868-ND | B3W-9000-B1C |
| Z12875-ND | B3W-9000-HG1G |
| Z6431-ND | B3W-9000-HG1N |
| Z12942-ND | B3W-9012-RG2N |
| Z12918-ND | B3W-9010-HG2G |
| Z12883-ND | B3W-9000-RHG2C |
| Z7864CT-ND,Z7864TB-ND | B3F-6100 |
| Z10713-ND | B3W-4055S |
| SW790-ND | B3F-1122-G |
| SW1140-ND | B3F-5151 |
| Z7814TR-ND,Z7814CT-ND,Z7814DKR-ND | B3AL-1003P-MS |
| Z7815TR-ND,Z7815CT-ND,Z7815DKR-ND | B3AL-1006P |
| Z12208-ND | B3W-9002-Y1Y |
| SW1107-ND | B3W-9010-Y1Y |
| Z4426-ND | B3F-5101 |
| Z12881-ND | B3W-9000-R2N |
| Z12874-ND | B3W-9000-G2N |
| Z12938-ND | B3W-9012-R1R |
| Z4435-ND | B3W-9012-Y1N |
| Z12944-ND | B3W-9012-Y1Y |
| Z12201-ND | B3W-9000-Y1C |
| Z12879-ND | B3W-9000-R1C |
| Z12207-ND | B3W-9002-R1R |
| Z12204-ND | B3W-9002-G1N |
| Z12908-ND | B3W-9002-Y1N |
| Z12901-ND | B3W-9002-R1C |
| Z12205-ND | B3W-9002-HG1N |
| Z12939-ND | B3W-9012-R2N |
| Z12940-ND | B3W-9012-R2R |
| SW1113-ND | B3W-9010-G1N |
| Z12933-ND | B3W-9012-G2N |
| Z12886-ND | B3W-9002-B1B |
| Z12926-ND | B3W-9012-B1B |
| Z12885-ND | B3W-9000-Y2N |
| Z12202-ND | B3W-9000-Y2Y |
| Z12904-ND | B3W-9002-R2R |
| Z5202-ND | B3W-9000-RG2C |
| Z12930-ND | B3W-9012-G1G |
| SW1108-ND | B3W-9010-B1B |
| Z12931-ND | B3W-9012-G1N |
| Z12941-ND | B3W-9012-RB2N |
| Z12877-ND,2266-B3W-9000-HG2G-ND | B3W-9000-HG2G |
| Z12869-ND | B3W-9000-B2B |
| Z12937-ND | B3W-9012-HG2N |
| Z12888-ND | B3W-9002-B1N |
| Z12916-ND | B3W-9010-HG1G |
| Z12917-ND | B3W-9010-HG1N |
| Z12943-ND | B3W-9012-RHG2N |
| Z7865CT-ND,Z7865TB-ND | B3F-6150 |
| SW789-ND | B3F-1102-G |
| B3W-9002-RHG2C-ND | B3W-9002-RHG2C |
| 2266-B3W-9002-G2G-ND,Z12894-ND | B3W-9002-G2G |
| Z12946-ND | B3W-9012-Y2Y |
| Z12935-ND | B3W-9012-HG1N |
| Z12927-ND | B3W-9012-B1N |
| 2266-B3F1125R-ND | B3F 1125R |
| 2266-B3FZ0034G-ND | B3FZ0034G |
| 2266-B3U0026H-ND | B3U 0026H |
| 2266-B3WZ0100R-ND | B3WZ0100R |
| 2266-B3WZ0029M-ND | B3WZ0029M |
| 2266-B3WZ0040A-ND | B3WZ0040A |
| 2266-B3WZ0060F-ND | B3WZ0060F |
| 2266-B3WZ0096G-ND | B3WZ0096G |
| 2266-B3WZ0042H-ND | B3WZ0042H |
| 2266-B3WZ0021E-ND | B3WZ0021E |
| 2266-B3WZ0034G-ND | B3WZ0034G |
| SW797CT-ND,SW797TB-ND | B3F-6002 |
| 39-B3U-1000PMTR-ND | B3U-1000PM |
| SW965-ND | B3F-4100 |
| SW1235CT-ND,SW1235TB-ND | B3F-6120 |
| SW977-ND | B3W-4105 |
| Z4693-ND | B3W-1020 |
| SW970-ND | B3F-5150 |
| SW1106-ND | B3W-9010-G1G |
| SW1111-ND | B3W-9010-R1N |
| B3F-6102-ND | B3F-6102 |
| 39-B3WN-6005PTB-ND | B3WN-6005P |
| Z10711-ND | B3F-1172 |
| SW852-ND | B3F-5100 |
| Z8525-ND | B3W-4005S |
| SW966-ND | B3F-4105 |
| B3F-1000S-ND | B3F-1000-S |
| SW1234-ND | B3F-1002S |
| 2266-B3F1000G-ND | B3F 1000G |
| 2266-B3F0047H-ND | B3F 0047H |
| 2266-B3FS1114B-ND | B3FS1114B |
| 2266-B3U0020R-ND | B3U 0020R |
| 2266-B3U0021G-ND | B3U 0021G |
| 2266-B3W1100C-ND | B3W 1100C |
| 2266-B3WZ4023C-ND | B3WZ4023C |
| Z4425-ND | B3F-1056 |
| Z10710-ND | B3F-1170 |
| Z10712-ND | B3W-1002S |
| Z12906-ND | B3W-9002-RG2N |
| Z12200-ND | B3W-9000-G1C |
| SW1105-ND | B3W-9010-R1R |
| Z12923-ND | B3W-9010-RHG2N |
| SW1037-ND | B3W-9000-B1B |
| Z12892-ND | B3W-9002-G1G |
| Z12896-ND | B3W-9002-HG1C |
| Z12895-ND | B3W-9002-G2N |
| Z12909-ND | B3W-9002-Y2C |
| Z12873-ND | B3W-9000-G2G |
| SW1112-ND | B3W-9010-Y1N |
| Z12882-ND | B3W-9000-R2R |
| Z12893-ND | B3W-9002-G2C |
| Z12924-ND | B3W-9010-Y2N |
| Z12925-ND | B3W-9010-Y2Y |
| Z12897-ND | B3W-9002-HG1G |
| Z12921-ND | B3W-9010-R2R |
| SW1480-ND | B3W-9000-HG1C |
| Z12934-ND | B3W-9012-HG1G |
| Z12922-ND | B3W-9010-RB2N |
| Z12870-ND | B3W-9000-B2C |
| Z12871-ND | B3W-9000-B2N |
| Z12876-ND | B3W-9000-HG2C |
| Z12899-ND | B3W-9002-HG2G |
| Z12919-ND | B3W-9010-HG2N |
| Z12920-ND | B3W-9010-R2N |
| Z12890-ND | B3W-9002-B2C |
| Z12928-ND | B3W-9012-B2B |
| Z12929-ND | B3W-9012-B2N |
| 39-B3AL-1004-ND | B3AL-1004 |
| B3F-6152-ND | B3F-6152 |
| 39-B3W-1120-ND | B3W-1120 |
| 39-B3SL-1020PTR-ND | B3SL-1020P |
| 39-B3F-1062-G-ND | B3F-1062-G |
| 39-B3F-1072-G-ND | B3F-1072-G |
| Z12884-ND | B3W-9000-Y2C |
| Z12209-ND | B3W-9012-R1N |
| Z12902-ND | B3W-9002-R2C |
| Z12903-ND | B3W-9002-R2N |
| Z12910-ND | B3W-9002-Y2N |
| Z12911-ND | B3W-9002-Y2Y |
| Z12872-ND | B3W-9000-G2C |
| Z12880-ND | B3W-9000-R2C |
| B3W-9000-RB2C-ND | B3W-9000-RB2C |
| B3W-9002-RB2C-ND | B3W-9002-RB2C |
| Z12932-ND | B3W-9012-G2G |
| Z12887-ND | B3W-9002-B1C |
| Z12878-ND | B3W-9000-HG2N |
| Z12913-ND | B3W-9010-B2N |
| Z12889-ND | B3W-9002-B2B |
| Z12891-ND | B3W-9002-B2N |
| Z12900-ND | B3W-9002-HG2N |
| Z12898-ND | B3W-9002-HG2C |
| Z12912-ND | B3W-9010-B2B |
| Z12936-ND | B3W-9012-HG2G |
| B3F-6055-ND | B3F-6055 |
| B3FS-1002P-SUS-ND | B3FS-1002P-SUS |