KA Surface-mounted illuminating Switch
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KA, K2, K9 SMT-compatible Illuminating Switch SMT series Surface mounting (SMT) made possible in a world first for illuminating push-button switches VNI I * Maximum 70% reduction in installation costs! Improved installation quality! ■ Helps reduce costs with a reduction in installation costs at the time of domestic production. ■ Provides stable quality due to installation by machines at the time of overseas production. ■ Reduces the tilts and twists at the time of mounting by utilizing original know-how to dramatically improve mounting accuracy. Also, there is no need for twist adjustments after mounting, so work efficiency will be increased drastically. ■ Provides a smooth operational feel due to the introduction of the ball bearing structure (KA, K2) ■ KA provides clear click feedback with a maximum 45% of the click rate. K2 achieves a maximum 30% of the click rate, and K9 a maximum 20% of the click rate. ■ Easy assembly of parts including button, filter, light cartridge, and main body. ■Smooth and easy assembly at the time of writing name on the illuminating side ■ Easy replacement of the light cartridge due to the structure that separates the main body and the light cartridge. ■ Features: KA: High frequency, high durability, and high click rate to provide clear click feedback K2: Allows highly dense installation, and provides the same level of performance as KA. K9: For a 9 square button only

Sunmulon SPECIFICATIONS OPERATING CHARACTERISTICS LIGHT CARTRIDGE Button concave raise dot concave raise dot flat concave raise dot flat Reflex mirror KA reflex board K2 reflex board

TOP VIEW *The height of the button is the same for the raise dot button. is covered with a heat-resistant sticker. TOP VIEW The height of the button is the same for the raise dot button and the flat button. is covered with a heat-resistant sticker. TOP VIEW The height of the button is the same for the raise dot button and the flat button. is covered with a heat-resistant sticker. Housing is common to all the buttons. General tolerance of drawings: ±0.4 mm

* The height of the button is the same for the raise dot button and the flat button. Sunmulon mark LIGHT CARTRIDGE Sunmulon mark BOTTOM VIEW is covered with a heat-resistant sticker. LIGHT CARTRIDGE * The height of the button is the same for the raise dot button and the flat button. Sunmulon mark is covered with a heat-resistant sticker. Housing is common to all the buttons. LIGHT CARTRIDGE Sunmulon mark Sunmulon mark BOTTOM VIEW is covered with a heat-resistant sticker. General tolerance of drawi

INTERNAL CONNECTION ARRANGEMENTS ■ KA * Dual-color light emitted * Multicolor light emitted Mono-color light emitted * Dual-color light emitted BOTTOM VIEW TOP VIEW Mono-color light emitted BOTTOM VIEW TOP VIEW * Dual-color light emitted TERMINALS LAYOUT ■ K2,K9 • Dual-color BOTTOM VIEW TERMINAL SHAPE / PCB HOLE CUT-OUT■ KA • Boss dimensions • Recommended PAD PCB hole cut-out • Boss dimensions

Bunmulon LED RATINGS / PROTECTIVE RESISTANCE ■ KA•LED ratings Item Color ( ) indicate values when simultaneously lit Refer to the following formula to calculate external resistance values. r_ Vcc—Vf Vf : LED forward voltage If Vcc : Power supply voltage IF : Recommended operating current Allowable forward current — Ambient temperature 30

series led'ratings / protective'resistance■ K2.K9 LED ratings Item Color Allowable forward current 30

SOLDERING'SPECIFICATIONS *Soldering (1) Conduct preliminary testing for confirming the soldering conditions. Switches could be deformed by heat depending on the baseboard type, pattern and round. (2) Perform soldering no more than twice, including corrective re-soldering. When soldering repeatedly, wait at least five minutes between the first and second soldering until the work cools to room temperature. Continuous heating can result in deformity of outer contours and deterioration. *Recommended conditions for reflow soldering (when attaching single terminal) Fix a thermocouple on the side...

series ordering'code • TERMINAL M Surface-mounted terminal • HOUSING COLOR I K I Black *Caution *1) In case of using without a button, the filter must be ordered separately. Please specify the filter color as X (i.e. without filter). *2) If you request M (with momentary click feel) for the operational feel of the housing, also specify M (with momentary click feel) for the operational feel of the light cartridge. In case you request S (without momentary click feel) for the operation feel of the housing, specify blank for the operational feel of the light cartridge. Other combinations...

• TERMINAL M Surface-mounted terminal • HOUSING COLOR I K I Black *Caution *1) In case of using without a button, the filter must be ordered separately. Please specify the filter color as X (i.e. without filter). *2) With or without momentary click feel cannot be selected for the light cartridge. They can be selected for the housing only.

ORDERING CODE • FILTER COLOR Hx I Without filter • BUTTON SHAPE • TERMINAL M Surface-mounted terminal • HOUSING COLOR I K I Black *Caution ^1) In case of using without a button, place an order for the button separately. ^2) With or without momentary click feel cannot be selected for the light cartridge. They can be selected for the housing only.

PACKING SPECIFICATIONS ■ KA ●The main body of KA-type switches is delivered in a tray. Tray specifications are as shown below. 315 P23×11=253±0.2 Tray index If ordered in 32 units or less, the order will be delivered in a product box. Trays, if needed, can be ordered by specifying the following product name and type. The lighting section is always delivered in a product box. ■ K2、 K9 ●The main body of K2-type and K9-type switches is delivered in a tray. Tray specifications are as shown below. 315 （31） Tray index Trays, if needed, can be ordered by specifying the following product name and...