Board-Level Switch Selection: Life & Footprint

A switch is selected on operating life first, and the spread in the KINGCONN catalog is 2 orders of magnitude: from 10,000 cycles to 100,000, 200,000, 300,000 and 1,000,000. A detection switch that actuates on every card insertion or lid close burns through life far faster than a configuration key — estimate total actuations over the service life, then pick the class. All values come from the part drawings.

Operating life: work out the total actuations first

Class	What it is for	Typical use
10,000 cycles	configuration, almost never actuated	internal mode selection
100,000 cycles	user keys actuated occasionally	reset and function keys
200,000 / 300,000 cycles	actuated several times a day	panel keys, lid detection
1,000,000 cycles	actuated on every card insertion or lid close	card detect, door detect

Switch types in the catalog

Type	What it is	Where it goes
Tact switch	closes on press, opens on release	panel keys, reset
Thin-film / sheet	profiles from 0.55mm	fits under a card slot for presence detection
Slide switch	2 or more detented positions	mode selection, factory configuration
DIP switch	2P to 10P at 1.27 / 2.54mm pitch	address setting, industrial control boards
Rocker / rotary	large visible travel on the panel	power or mode, state visible at a glance

Catalog models cover 2P to 10P configurations at 1.27mm and 2.54mm pitch in both through-hole and surface-mount. Low-profile options start at 0.55mm — thin enough to sit under a card slot for presence detection.

Where these switches are used

Typical uses across the catalog families: card and lid detection, mode selection, and reset or user keys on industrial control boards and consumer devices. Detection switches usually pair with a card socket — see the microSD guide for the card-detect discussion on the socket side.

KINGCONN switches

7WHTE-F0-0055Tact Switch

7WHTE-F0-0052Membrane Tact Switch

7WHTE-F0-3081-XTACT SWITCH

7WHTE-F0-0064SLIDE SWITCH

7WHTE-F0-3038ROCKER SWITCH

7WHTE-F0-S028SMT DIP Switch

7WHTE-F0-GL67-05-LDIP SWITCH "01234" 5POS

7WHTE-F0-0228Continuous Rotary Switch

7WHTE-F0-0063Toggle Switch

7WHTE-F0-3054XXXXDual Push Rod Switch

19 switch models: tact, thin-film, slide, rocker, DIP and rotary types in through-hole and surface-mount.

Materials and RFQ

Housings are high-temperature thermoplastic rated UL94V-0; contacts are copper alloy or brass with silver-based contact surfaces on some models. RoHS compliant, and every published value carries its source drawing number. See the Switch series page for all 19 models, or send your actuation count, travel and mounting to service@kingconn.com.tw.

FAQ

How do I select a switch?

Start from operating life: estimate total actuations over the service life, then pick the class. The KINGCONN switch catalog runs from 10,000 cycles through 100,000, 200,000, 300,000 to 1,000,000. Only then choose the type (tact, thin-film, slide, DIP, rocker), the contact configuration and the mounting.

Why do detection switches need such a high life rating?

Because they are not pressed by a person, they are driven by a mechanism: 1 actuation for every card insertion or lid close. They wear far faster than a configuration key, so card-detect and door-detect applications belong at the 1,000,000 end.

What DIP switch options are available?

Catalog models cover 2P to 10P configurations at 1.27mm and 2.54mm pitch, in through-hole and surface-mount versions, used on industrial control boards for address or mode setting.

How thin can a switch be?

Thin-film and sheet types start at 0.55mm — thin enough to sit under a card slot for presence detection without taking extra height.

What should I check about contact material?

Contacts are copper alloy or brass, with silver-based contact surfaces on some models. Low-voltage, low-current signal loops are sensitive to contact resistance, so read that value on the drawing rather than judging by cycle count alone.