Datasheet

ManualsBrandsNKK SWITCHES ManualsKey & Rotary SwitchesKey switch 28 V DC/AC 0.1 A 1 x On/On/On 2 x 45 ° 1 pc(s)

Series SK

Process Sealed Keylocks

www.nkk.com

F20

Indicators

AccessoriesSupplement

Tactiles

KeylocksRotaries

Pushbuttons

Illuminated PB

Slides

Programmable

Touch Tilt

Rockers

Toggles

Electrical Capacity (Resistive Load)

Logic Level: 0.4VA maximum @ 28V AC/DC maximum

(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)

See Supplement section to ﬁnd explanation of operating range

Other Ratings

Contact Resistance: 80 milliohms maximum

Insulation Resistance: 100 megohms minimum @ 500V DC

Dielectric Strength: 500V AC minimum for 1 minute minimum

Mechanical Life: 30,000 cycles minimum

Electrical Life: 10,000 cycles minimum

Nominal Operating Torque: .026Nm (.234 lb

•in) for momentary action models

.020Nm (.182 lb

•in) for maintained action models

Contact Timing: Break-before-make

Angle of Throw: 90° for 2-position & 45° for 3-position

Materials & Finishes

Boot: Polyvinyl chloride

Key: Brass alloy with bright nickel plating;

brass alloy with bright nickel plating & ABS resin handle

Tumbler Barrel: Polyacetal

Bushing: Zinc alloy with nickel plating

Bracket: Steel with tin plating

Base: Glass ﬁber reinforced polyamide

Movable Contactor: Beryllium copper with gold plating

Stationary Contacts: Copper with gold plating

Terminals: Brass with tin plating

Environmental Data

Operating Temperature Range: –25°C through +70°C (–13°F through +158°F)

Humidity: 90 ~ 95% humidity for 240 hours @ 40°C (104°F)

Vibration: 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning

in 1 minute; 3 right angled directions for 2 hours

Shock: 50G (490m/s

) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)

PCB Processing

Soldering: Wave Soldering recommended: See Proﬁle B in Supplement section.

Manual Soldering: See Proﬁle B in Supplement section.

Cleaning: Automated cleaning. Boot must be on switch during processing.

See Cleaning speciﬁcations in Supplement section.

Standards & Certifications

These SK Series devices have not been tested for UL recognition or CSA certiﬁcation.

These switches are designed for use in a low-voltage, low-current, logic-level circuit.

When used as intended in a logic-level circuit, the results do not produce hazardous energy.

General Speciﬁcations

Summary of content (6 pages)

PAGE 1
Toggles Series SK Rockers General Specifications Electrical Capacity (Resistive Load) Pushbuttons Logic Level: Programmable Illuminated PB Keylocks Process Sealed Keylocks Other Ratings F Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Nominal Operating Torque: Contact Timing: Angle of Throw: Rotaries Materials & Finishes Boot: Key: Tactiles Slides Tumbler Barrel: Bushing: Bracket: Base: Movable Contactor: Stationary Contacts: Termin
PAGE 2
Toggles Series SK Process Sealed Keylocks Rockers Distinctive Characteristics Pushbuttons Sealed body construction plus disposable boot protect contacts and allow automated processing. Short body size for space-saving, behind panel dimensions. Detent mechanism, with its spring-operated steel ball, gives crisp, positive action for accurate switch setting. Rotaries F Keylocks Programmable Illuminated PB Molded-in terminals seal out flux, solvents, and other contaminants.
PAGE 3
Series SK Toggles Process Sealed Keylocks Rockers TYPICAL SWITCH ORDERING EXAMPLE 2 4E G Poles 1 SPDT SP3T 2 DPDT DP3T 30 Contact Material G Gold Rated 0.4VA @ 28V AC/DC Circuits & Key-Removable Positions F Rotaries Keylocks Programmable Illuminated PB Pushbuttons SK PC Terminals Code Pos. 1 Pos. 2 Pos.
PAGE 4
Series SK Toggles Process Sealed Keylocks POLES, CIRCUITS & KEY-REMOVABLE POSITIONS Pos 1 SPDT SK12A ON NONE ON C1-1 Pos 2 SK12B SK15B ON ON NONE NONE ON (ON) C1-1 DPDT SK22A ON NONE ON C1-1 C2-4 ____ C1-1 C2-4 ____ DPDT DPDT SK22B SK25B ON ON NONE NONE ON (ON) POS 1 ____ SPDT SPDT Schematic Pos 3 C1 C1-2 3 Pushbuttons Pos 3 POS 1 ____ C1-2 1 C1 ON ON ON C1-1 C1-2 C1-3 SP3T SK14E ON ON ON C1-1 C1-2 C1-3 C1-2 C2-5 C1-3 C2-6 C1-2 C2-5 C1-3 C2-6 C2
PAGE 5
Series SK Toggles Process Sealed Keylocks KEYS Rockers AT4080 Standard Antistatic Plastic Handle Pushbuttons Brass Alloy with Bright Nickel Plating & ABS Resin Handle (14.5) .571 (1.5) .059 2 keys supplied with each switch Programmable Illuminated PB Keylocks Rotaries (20.0) .787 (5.0) .197 PCB (10.1) .398 Suitable for all Straight PCB mount and for Right Angle PCB mount where clearance for key is obtainable. AT4079 for Right Angle Mid-board Mounting (Optional) All Metal (16.0) .
PAGE 6
Series SK Toggles Process Sealed Keylocks TYPICAL SWITCH DIMENSIONS (14.8) .583 2 1 (0.7) Dia .028 (12.4) .488 (7.62) .300 (2.54) .100 90° (3.5) .138 (5.08) .200 5 4 Rockers C1 (2.54) Typ .100 (2.54) .100 Programmable Illuminated PB (10.5) .413 (0.7) Typ .028 POS 1 C2 (1.0) .039 POS 3 (15.24) .600 (20.0) .787 (9.0) .354 (3.0) .118 2 1 (16.3) .642 C1 (3.5) (0.7) Dia Typ .138 .028 (5.08) .200 (2.54) Typ .100 (2.54) .