Coin Cell Battery Holder Kit — CR2032 / CR2450 / CR1220, 34pcs with Wires & Switch

Coin Cell Battery Holder Kit — CR2032 / CR2450 / CR1220, 34pcs with Wires & Switch

A comprehensive coin cell battery holder kit supporting CR2032, CR2450, and CR1220 battery sizes — 34 holders including PCB-mount, wire-lead, and switched variants. Coin cell holders are essential for RTC (real-time clock) backup power, IoT sensor nodes, and low-power electronics that require a small, long-lasting power source. The included switched holders allow the battery to be disconnected without removal.

Kit Contents

• CR2032 holders: PCB mount, wire lead, with switch
• CR2450 holders: PCB mount, wire lead (larger capacity)
• CR1220 holders: PCB mount (compact)
• Total: 34 holders

Key Specifications

• Battery sizes: CR2032 (3V, 220mAh) / CR2450 (3V, 620mAh) / CR1220 (3V, 35mAh)
• Mounting: PCB mount (through-hole) and wire lead
• Switch: Included on selected holders
• Compliance: RoHS compliant

Coin Cell Size Guide

• CR1220: 12mm diameter, 2.0mm thick — smallest, 35mAh — for compact PCBs
• CR2032: 20mm diameter, 3.2mm thick — most common, 220mAh — for RTC and IoT
• CR2450: 24mm diameter, 5.0mm thick — largest, 620mAh — for longer battery life

Typical Applications

• Arduino RTC (DS3231, DS1307) backup battery
• IoT sensor node coin cell power supply
• Low-power microcontroller backup power
• CMOS memory backup battery holder
• Wearable electronics coin cell power