Toggles Processing Data PROCESSING RECOMMENDATION GUIDE JB Tactiles x x x JF Illuminated Tactiles x x x x x x JF Tactiles x x x AS Slides x x JL Illuminated Tactiles x x B Illuminated Toggles x x B Toggles x x x JS DIP Slides x x x JS SMT DIP Slides BB Pushbuttons x CB Tactiles x x x KP Illum. Pushbuttons x x x x x M Rockers (PCB) x x x x M Toggles (PCB) x x x x M2B Pushbuttons x x x x M2T Rockers x x x x x x Manual x x x x x x DB Pushbuttons x x x M2T Toggles x x DSA Tilt x x x M2100 Illum Act’s (PCB) x x x DSB Tilt x x EB Pushbuttons (PCB) x x FR01 DIP Rotaries x x x MB2000 PBs (PCB) x x x x MB2400 PBs (PCB) x x x x MB2500 PBs (PCB) x x x MRA Rotaries x x x x MRB Rotaries x x x x Slides x x Keylocks CS Slides D2 Toggles FR02 SMT DIP Rotaries x x FS Slides x x G Illuminated Toggles x x x MRF Rotaries x x x G Rockers x x x MRK Rotaries x x x G Toggles x x x MS Illuminated Slides x x x x G3B SMT Pushbuttons x x MS Slides x x x x x x x ND Rotaries GB Illuminated Plunger x x x ND3 SMT Rotaries GB Pushbuttons x x x NP01 Pushbuttons x x x GB2 Pushbuttons x x x P Rockers (PCB) x x x GW Illum. Paddles x x x P Toggles (PCB) x x x x x x Tilt G3T SMT Toggles x x GW Rockers/Paddles x x x SK Keylocks (PCB) x x HB2 Illum. Pushbuttons x x x SM Slides x x x HP02 Tactiles x x x SS Illuminated Slides x x x x SS Slides x x x HP03 SMT Tactiles x x x IS LCD PB & Display x x x SS3 SMT Slides IS OLED PB & Display x x x UB Pushbuttons (PCB) x x x JB Illuminated Tactiles x x UB2 Pushbuttons (PCB) x x x x www.nkk.com x Rockers AB Pushbuttons Cleaning Automatic Pushbuttons x Vapor Phase Programmable Illuminated PB x x Manual IR Reflow Rotaries x x SMT Manual Solder Tactiles x A Toggles PCB Touch Automatic Series & Type Wave Solder x Vapor Phase Cleaning A Rockers CB3 SMT Tactiles IR Reflow Indicators SMT Manual Solder x Accessories PCB Wave Solder x Z11 Z Supplement Series & Type Toggles Processing Data PROCESS SEALED SWITCHES Programmable Illuminated PB Pushbuttons Rockers NKK, a pioneer in the development of process sealed switches, is ahead of its time as a manufacturer. These process sealed switches are increasingly in demand because of the advancements in automated PC board processing. NKK’s expansive family of process compatible devices includes toggles, rockers, pushbuttons, tactiles, rotaries, keylocks and slides in a variety of sizes. Over 50 years of quality design experience produced the first process sealed switches to satisfy the process requirements of PC board soldering and cleaning techniques. As the cutaway drawings on our Distinctive Characteristics pages illustrate, our process sealed switches incorporate all the features necessary to accomplish their process compatibility: epoxy sealed terminals, heat resistant resins, interior rubber o-rings, seals, and sleeves, plus ultrasonic welding. The following data has been developed from a comprehensive study of test data, technical literature, and industry practice. Automated Cleaning Specifications Temperature Stabilization To minimize the thermal shock, switches should be allowed to cool to 38°C or to the temperature Flux Flux Removal Drying of the hand or machine cleaning. NKK Switches recommends a no-clean (low residue) flux that can be either left on the board or Rotaries Keylocks Slides cleaned with a mild organic solvent. A second choice is a synthetic flux that can be effectively removed with an alcohol-based solvent. A water soluble flux is not recommended because of the corrosive nature of the flux residue. The relatively high temperature and energetic cleaning methods needed to ensure complete removal of all flux residues could also be hazardous to the switch. Cleaning should take place at a slightly elevated room temperature between 38°C and 52°C. Spray pressure should not exceed 25psi. See table of Flux Removal Conditions below to determine recommended depth of submersion, time and temperature. Drying time should be extended to a one-hour bake at 52°C maximum. This step will eliminate any condensation. Tactiles Flux Removal Conditions Touch Tilt Series Depth (mm) Time (Minutes) Temperature (°C) A, B 100 5 ––– AB, BB, G, GB, SK-B 50 5 ––– CB, CB3, JB, JF, M2B, M2T 50 1 50 G3B, G3T, ND, ND3 100 1 70 MRA, MRB, MRF 50 3 ––– SK-E 50 1 60 Indicators Manual Solder Profiles Manual Solder Profile Supplement Accessories Solder Iron Tip Temperature Time on Terminal Cycles Profile A High Temperature Profile B Low Temperature 390°C 4 seconds 2 350°C 3 seconds 1 Notes: Profiles A and B are for lead-free. Do not exceed these specifications. Z Z12 www.nkk.com Toggles Processing Data Wave Solder Profiles for Through Hole t3 Rockers t2 Pushbuttons T2 T1 t1 Preheat Temperature Preheat Time Peak Temperature Peak Time Thickness of PCB Cycles Comments T1 t1 T2 t2 + t3 Profile A High Temperature 110°C 40 seconds 270°C 6 seconds 1.6mm 2 PCB with no Lead Profile B Low Temperature 110°C 30 seconds 270°C 5 seconds 1.6mm 2 PCB with no Lead Keylocks Symbol t = seconds Rotaries Wave Solder Profile Programmable Illuminated PB 0 Reflow Solder Profiles for SMT Slides t3 T3 T2 Tactiles T1 Preheat 0 180°C ~ 200°C 120 seconds 230°C 60 seconds 250°C Not Specified 1.6mm 2 PCB with no Lead 150°C ~ 170°C 90 seconds 200°C 30 seconds 240°C Not Specified 1.6mm 2 PCB with no Lead Tilt Profile B Low Temperature Touch T1 t1 T2 t2 T3 t3 Profile A High Temperature Indicators Preheat Temperature Preheat Time Heating Temperature Heating Time Peak Temperature (Surface) Peak Time Thickness of PCB Cycles Comments Symbol t = seconds Accessories Reflow Solder Profile t2 Notes: The Reflow Solder profile above describes the printed circuit board (PCB) surface temperature. Since the PCB surface temperature and the switch surface temperature will vary depending on the height of the switch, the PCB material, and PCB thickness, ensure that the switch surface temperature does not exceed 250°C for high temperature (column A), or 240°C for low temperature (column B). Contact the factory if your conditions are more severe than the above specifications. www.nkk.com Z Z13 Supplement t1