GO TO TABLE OF CONTENTS MX Series MX Keyswitch Desktop Profile Dimensions: Inches (mm) 0.61 (15.6) 0.14 (3.6) 0.46 (11.6) 0.61 (15.6) 0.20 (5.0) 0.13 (3.30) Specifications Mechanical Motion Voltage 12 VAC/DC max. 2 VDC min. Linear Feel Soft Tactile Feel Current 10mA AC/DC max. 10A DC min. Operating Force 2.1 oz 0.7 oz 2.0 oz 0.7 oz Insulation Resistance 100 M at 100 VDC Pretravel 0.08" 0.24" 0.08" 0.24" Capacitance <2pF (at 1kHz) Total Travel 0.16" -0.015" 0.16" -0.2" Bounce Time 5 msec (at 16 in/sec actuation speed) Tactile Force N/A 2.3 oz 0.7 oz Life MX Linear MX Soft Tactile MX Click Tactile MX Alternate Action (at 5 V, 1mA, no load) 50 x 106 cycles 20 x 106 cycles 20 x 106 cycles 50 x 105 cycles Click Tactile Feel Alternate Action 1.8 oz 0.5 oz 2.1 oz 0.7 oz 0.09" 0.24" 0.05" 0.015" Total Travel 0.16" -0.02" 0.16" 0.01" Initial Contact Resist. 200 m (25 m typical) Tactile Force 2.1 oz 0.5 oz N/A Materials Plastics Contacts Spring Thermoplastic, UL-rated AuAg 10 Stainless steel Flammability Rating UL94HB Solderability Wave solder 5 seconds at 500F Environmental Operating Temp. Range -10 to +70C Storage Temp. Range -40 to +70C Relative Humidity 5% to 95%, non-condensing 10-2 Operating Force Pretravel MX Series Keyswitch Mounting Options 0.197 +0.012 0.06 + - 0.006 PCB (with pins) Metal Frame (without pins) Circuit Board Layouts Grid line spacing = 0.05 inch Keyswitch without fixation pins 1-Pole 1-Pole w/LED 1-Pole w/Diode O 0.157 + - 0.004 O 0.059 + - 0.002 O 0.039 + - 0.004 Keyswitch with fixation pins 1-Pole 1-Pole w/LED 1-Pole w/Diode O 0.157 + - 0.004 O 0.067 + - 0.002 O 0.059 + - 0.002 O 0.039 + - 0.004 Spacebar without frame 0.275 + - 0.004 O 0.12 + - 0.004 10 O 0.157 + - 0.002 0.60 + - 0.004 A+ - 0.004 10-3 MX Series Keyswitch Keycap Dimensions Metal Frame Cutout Dimensions Cylindrical Type (8 mm) Keyswitch 0.551 + - 0.002 0.82 Row E D2 DIN6784 0.74 Row B 0.736 Row D 0.551 + - 0.002 0.704 Row C 0.06 + - 0.004 C3 DIN6784 R 0.012 Max. A 0.43 B C D E F Spacebar (Keycap sizes 1 x 2, 1 x 2.25, 1 x 2.75) 0.166 + - 0.004 0.704 A+ - 0.004 0.262 + - 0.004 R 0.012 max 0.032 + - 0.004 0.13 0.53 + - 0.006 Standard Type (8 mm) 0.11 + - 0.008 0.69 R 0.012 max 0.02 0.26 + - 0.004 0.55 + - 0.002 0.484 + - 0.004 0.12 + - 0.004 0.38 0.031 + - 0.004 Spacebar (Keycap sizes 1 x 3, 1 x 7, 1 x 8, 1 x 9, 1 x 10) 0.69 0.55 + - 0.002 0.13 0.11 + - 0.008 0.262 + - 0.004 R 0.012 max 0.484 + - 0.004 Spacebar Mounting Options R 0.012 max 0.12 + - 0.004 0.26 + - 0.004 A+ - 0.004 Keycap (8mm) 0.53 + - 0.006 0.165 + - 0.004 Support Housing Leveling Mechanism Kits Wire PCB (with pins) Keycap Size 1x2 1 x 2, 2.5 1 x 2, 2.75 1x3 Keycap Type Std & Cylin 0.94 P/N w/frame P/N w/o frame A (inches) Metal Frame Metal Frame (without pins) 10-4 1x8 1x8 1x9 1 x 10 1x7 Std & Cylin Std Cylin Cylin 1.5 5.25 5.25 4.5 G99-0224 G99-0225 G99-0226 G99-0226 G99-0379 G99-0742 G99-0743 G99-0744 G99-0744 G99-0745 MX Series Keyswitch Soldering Parameters Ordering Information 1. A. B. C. Part Number Description MX1A-11DN Standard force, momentary face plate mount with diode MX1A-11NN Standard force, linear, face plate mount Flux Station Flux - Fry type GR8 Applied by foaming Specific gravity - 0.820 g/cm3 2. Conveyor Speed A. 2.3 meters/min. MX1A-11NW Standard force, linear, PCB mount MX1A-21NW Higher force, linear, PCB mount 3. Pre-heat Temperature A. +88C measured on top surface of PCB MX1A-31NN Alternate action, face plate mount MX1A-31NW Alternate action, PCB mount 4. Solder A. 63/37 alloy B. Dry wave - no oil C. Approximate contact with wave - 2 seconds MX1A-C1NN Standard force, soft tactile, face plate mount MX1A-C1NW Standard force, soft tactile, PCB mount MX1A-E1NN Standard force, click tactile, face plate mount MX1A-E1NW Standard force, click tactile, PCB mount 5. Cleaning A. Fry GR8 is non-hygroscopic flux and does not require cleaning B. If cleaning is required on isolated areas such as finger connector, cold cleaning by hand with Alpha 564 is recommended. Care must be taken to avoid solvent entering the keymodule. Ordering Information 1 MX A 1 Keyswitch/Type Code 1 2 3 4 5 Contact Material AuAg10 10mA/12V max -- -- -- Special C O D E Code Contact Config. A SPSTNO B -- C Special D -- 0 1 2 3 C D E F 1 Operating Characteristics, Actuating Force and Key Style Special Momentary, single pole, 2.1 oz, standard keyswitch, black keystem Momentary, single pole, 2.8 oz, spacebar, grey 37 keystem Alternate action, single pole, 2.1 oz Momentary, single pole, tactile feel, 2.3 oz, clear keystem Momentary, single pole, tactile feel, 2.8 oz, spacebar, grey 39 keystem Momentary single pole, tactile feel 2.1 oz, "click" differential movement, blue keystem Momentary, single pole, tactiel feel, 2.8 oz, "click" differential movement, space bar, green keystem C O D E 1 N Keystem Configuration Std straight for cylin & std keycaps Code N R G Y D J N C O D E PCB Mounting Pins N No pins (metal frame req) W With pins LED Diode No LED No diode Red LED no diode Green LED no diode Yellow LED w/diode No LED w/diode w/jumper wire no LED no diode 10 10-5