Product Overview
ALCOSWITCH FSM14JH Miniature Tact Switch - 6x6mm Through-Hole, 160gf, 4-Pin, 50mA 24VDC
Condition
Unused NOS. Switches are clean and pristine with straight, unsoldered silver-plated leads. Molded code TC21 visible on body. Sourced from an electronics distributor consolidating inventory. Evaluation: Visual inspection only. Function testing not performed.
Ships same or next business day from our Idaho warehouse. Honest pricing, no nonsense.
Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
ALCOSWITCH 2-1825910-7, series designator FSM14JH - a miniature 6x6mm SPST-NO momentary tactile switch built for through-hole PCB mounting. Press the black nylon actuator and the circuit closes; release it and the circuit opens. Operating force is 160gf, contact rating is 50mA at 24VDC, and the four silver-plated copper alloy pins drop straight into standard through-hole pads. Also cataloged as TE Connectivity 2-1825910-7.
Key Features
- Configuration: SPST-NO (Single Pole Single Throw, Normally Open), momentary action
- Body footprint: 6mm x 6mm
- Actuator height from base: 5.0mm
- Actuator: black high-temperature nylon button
- Contact terminals: silver-plated copper alloy, 4-pin through-hole
- Operating force: 160gf (1.6N)
- Contact rating: 50mA at 24VDC
- Mounting: through-hole (THT), 4-pin radial layout
- Also known as FSM14JH; compatible with TE Connectivity and ALCOSWITCH FSM series footprints
Applications
- Repair tech desolders a dead button from a game controller PCB, drops in the FSM14JH, and restores the original tactile feel before sealing the housing back up
- Maker wires a row of these to an Arduino on a breadboard to build a custom keypad or menu interface for a project enclosure
- Arcade restorer pulls a worn tact switch from a classic control panel and replaces it with a 160gf unit to match the original actuation feel
- Keyboard builder populates a hand-wired layout with through-hole tact switches for a low-profile custom input device
- Hobbyist prototyping a chiptune controller or interactive art installation adds tactile button inputs without committing to a final PCB design
Frequently Asked Questions
Is this a momentary or latching switch?
Momentary only. The circuit closes when the button is pressed and opens the moment it is released. It will not latch in the on position without additional circuitry.
What PCB pad spacing does this require?
Standard 6x6mm through-hole tactile switch footprint, 4-pin radial layout. This is the most common tact switch footprint used in consumer electronics repair and DIY projects.
Will it work with a surface-mount PCB?
No. This is a through-hole component. It requires through-hole pads. It is not compatible with SMT pads without an adapter.
What are the electrical limits?
50mA at 24VDC. Not rated for high-current or high-voltage switching. Designed for low-voltage DC signal and control circuits.
Is this the same as the TE Connectivity 2-1825910-7?
Yes. ALCOSWITCH is the legacy brand name; TE Connectivity acquired ALCOSWITCH and the part is cross-listed under both names. The part number 2-1825910-7 and the FSM14JH series designator apply to both.
The 160gf click on a well-worn remote or a rebuilt arcade panel is one of those small things that either feels right or feels wrong - and when it feels right, nobody notices the repair. That is the job this switch was made for.
