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Sub-Miniature Rocker Swtches 4M Series

Micro current
  • 4M

  • TACLEX

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Product Overview:

The 4M Series is an ultra‑miniature PCB‑mount rocker switch engineered for extremely space‑constrained applications. It condenses the classic rocker‑switch operating experience into a miniature package, combining an iconic red flame‑retardant base with a sleek black rocker actuator to deliver reliable on/off control in a compact footprint. The vertical through‑hole solder pins penetrate the PCB to form a secure mechanical anchor, while the raised and lowered positions of the rocker intuitively indicate ON/OFF status—easily confirmed by tactile feel without visual inspection. From micro control panels on precision instruments to internal jumpers in high‑density consumer electronics, the 4M Series—with its "miniature body and rocker soul"—stands as an ideal choice for space‑constrained devices that demand both operational feel and electrical reliability.


Technical Parameters

Specification
Rating

3 Amps with resistant load @ 120VAC or 28VDC 

1 Amps with resistant load @ 250VAC

0.4 Volt - Amps ( VA ) max. @ 20V max. ( AC or DC )

MECHANICAL LIFE: 30,000 make-and-break cycles.
Contact Resistance

20 mΩ max. (initial value) @ 2-4VDC

100mA for both silver and gold plated contacts.

Dielectric Strength
1,000 Vrms min.@sea level. (initial value)
OPERATING TEMPERATURE: -40C to 85°C.
Insulation Resistance 1,000 M Ω min./1000VDC
Materials
CASE: Diallyl phthalate (DAP) (UL94v-0).
Actuator Nylon, black std.
BUSHING: Brass or zinc, nickel plated.
SWITCH SUPPORT: SUS or brass, tin plated.
TERMINAL/CONTACT: Copper or brass with silver or gold plated.
HOUSING: Stainless Steel.

Key Features

1. Ultra‑miniature package – freeing up every inch of PCB space
In multi‑layer densely populated circuit boards or portable devices the size of a matchbox, the 4M Series carves out valuable space for other functional components with its extreme compactness.

2. Rocker status visible – zero misjudgment in blind operation
The tilt angle of the black rocker intuitively corresponds to the ON/OFF status—one end raised is ON, the other end lowered is OFF. Even inside equipment or in dimly lit environments, operators can instantly confirm the switch state by fingertip touch alone, eliminating any risk of incorrect operation.

3. Vertical through‑hole solder pins – robust and vibration‑resistant soldering
Gold‑plated straight pins penetrate vertically through the PCB, providing dual‑function security after wave or hand soldering: low‑resistance, highly reliable electrical connections, and a mechanically robust structure that resists vibration and pulling forces. Whether subjected to continuous shocks on an industrial site or drop impacts on portable devices, the solder joints remain firmly intact over time.

4. Metal mounting brackets – added peace of mind for panel fixing
Select models are equipped with metal mounting brackets, allowing the switch to be secured to the equipment panel or chassis using screws, providing mechanical support independent of the PCB. Even if the PCB deforms due to thermal expansion and contraction, the switch body remains rock‑steady.


Applications:

Precision Instruments & Testing Equipment:

  • Power switches and function switching on portable oscilloscopes and spectrum analyzers

  • Address/mode configuration jumpers on miniature sensor modules

  • Start/stop controls on handheld laboratory testing instruments

Communications & Network Equipment:

  • Power switches on miniature routers, switches, and gateways

  • Local bypass controls on fiber optic terminal boxes and patch panels

  • Configuration jumpers and operating mode selection on IoT modules

Consumer Electronics & Gaming Peripherals:

  • Power switches on mini keyboards and portable mice

  • Function switching on game controllers and flight joysticks

  • Power controls on TWS earphone charging cases and portable speakers

Medical Equipment:

  • Power switches on portable blood glucose meters and pulse oximeters

  • Measurement loop switching on miniature patient monitors

  • Start/stop controls on rehabilitation devices and physiotherapy instruments

Industrial Automation:

  • Function selection on miniature PLC expansion modules

  • Address/baud rate configuration on industrial sensors

  • Micro control panels on robotic end‑effectors

✈️ RC Models & Drones:

  • Transmitter RF power / flight mode switching

  • Auxiliary function switches on drone flight controller boards

  • Channel configuration on RC receivers


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