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CR2032 / CR2025 Coin Cell Battery Holder (3V PCB Mount)

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The CR2032 / CR2025 Coin Cell Battery Holder is an indispensable component for projects requiring a tiny, lightweight, and low-profile power source. Designed to securely house standard 20mm lithium coin cells, this holder provides a stable 3.0V output directly to your printed circuit board (PCB) or breadboard.

Because CR2032 (3.2mm thick) and CR2025 (2.5mm thick) batteries share the exact same 20mm diameter, this holder is cleverly designed with high-tension spring contacts that easily accommodate both sizes. It features standard through-hole mounting pins, allowing for quick, rigid soldering directly onto custom PCBs, or easy insertion into standard 2.54mm pitch breadboards for rapid prototyping.

Key Features & Functional Advantages:

  • Dual-Size Compatibility: The internal spring mechanism securely grips both CR2032 and the slightly thinner CR2025 cells, maintaining strong electrical contact regardless of which battery you have on hand.

  • Low-Profile Footprint: Takes up virtually zero vertical space, making it the perfect power solution for ultra-thin project enclosures and wearable technology.

  • High-Reliability Contacts: Engineered with nickel-plated or gold-flashed phosphor bronze contacts. This prevents oxidation and ensures a low-resistance connection, which is critical when dealing with the very low current outputs of coin cell batteries.

  • Easy Insertion & Removal: Features a flexible top tab or side-slot design that holds the battery firmly in place under vibration, while still allowing you to pop the battery out with a fingernail or small screwdriver when it’s time for a replacement.

  • Secure PCB Mounting: Equipped with rigid, standard-pitch through-hole pins that provide excellent mechanical stability once soldered to a board, ensuring the holder won't snap off during battery changes.

Perfect For:

  • Real-Time Clocks (RTC): The absolute industry standard for providing backup power to RTC modules (like the DS3231), ensuring your project keeps accurate time even when main power is disconnected.

  • CMOS & SRAM Backup: Perfect for keeping volatile memory chips alive in custom retro-computing builds, synthesizers, and motherboard prototypes.

  • Wearable Electronics: Provide lightweight, unobtrusive power to 3D-printed smart jewelry, electronic badges, and glowing cosplay accessories.

  • Ultra-Low Power IoT: Drive sleeping ESP32 or nRF52 sensor nodes that wake up, transmit a tiny packet of Bluetooth or sensor data, and immediately go back to sleep.

Technical Specifications:

  • Compatible Battery Sizes: CR2032, CR2025, DL2032, BR2032 (Any 20mm diameter cell)

  • Nominal Output Voltage: 3.0V DC

  • Mounting Style: Through-Hole (DIP) / PCB Mount

  • Pin Pitch: Typically ~20mm spacing (varies slightly by manufacturer)

  • Housing Material: High-temperature LCP or PBT plastic (Resists melting during soldering)

  • Contact Material: Nickel-plated phosphor bronze or stainless steel

  • Dimensions: Approximately 22 mm x 22 mm x 5 mm (L x W x H)

Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.

Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.