SparkFun
Coin Cell Battery Holder - 12mm (PTH)
A through-hole 12mm coin cell battery holder for PCB mounting. Uses friction to hold the battery securely in place — the metal housing is positive (+) and th...
A through-hole 12mm coin cell battery holder for PCB mounting. Uses friction to hold the battery securely in place — the metal housing is positive (+) and the PCB pad underneath is negative (−). Commonly used for RTC backup, SRAM backup, and GPS modules.
Key Features
- Through-Hole Mount – Solders directly to a PCB
- Friction Fit – Holds 12mm coin cells securely without clips
- Compact Design – Low-profile for space-constrained boards
Specifications
- Battery Size: 12mm coin cell
- Mount Type: Through-hole (PTH)
- Polarity: Metal housing (+), PCB pad (−)
Ideal For
- RTC battery backup
- SRAM and GPS module backup power
- Low-power embedded projects
Package Contents
- 1× 12mm Coin Cell Battery Holder (PTH)
Jargon buster
Plain-language definitions for the technical terms used above.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- PTH
- Plated through-hole means the pin holes are metal-lined so solder connects the pad on both sides of the board. It is useful for connectors and headers that need a strong mechanical and electrical connection.
- RTC
- A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
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Coin Cell Battery Holder 12mm Datasheet
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Supplier page — sparkfun.com
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