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CR2032 Coin Cell Battery Holder — DIP Through-Hole, PCB Mount, Black (5-Pack)
CR2032 Coin Cell Battery Holder DIP Through-Hole, PCB Mount, Black (5-Pack)
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CR2032 Coin Cell Battery Holder — DIP Through-Hole, PCB Mount, Black (5-Pack)
This CR2032 coin cell battery holder is designed for direct PCB through-hole mounting, providing a secure and reliable socket for CR2032 (3V, 20mm diameter) lithium coin cell batteries. The spring-contact design ensures consistent electrical contact and easy battery replacement without soldering. Widely used for RTC (real-time clock) backup power, BIOS CMOS battery, and low-power embedded system coin cell supply.
Key Specifications
| Parameter | Value |
|---|---|
| Compatible Battery | CR2032 (20mm diameter, 3.2mm height) |
| Mounting Type | DIP through-hole, PCB mount |
| Contact Material | Phosphor bronze with gold/tin plating |
| Housing Material | Nylon (UL94 V-0 flame retardant) |
| Color | Black |
| Operating Temperature | -20°C to +70°C |
| Quantity | 5 pieces |
Why Choose This CR2032 Holder?
- Through-hole DIP mount — solders directly to PCB for secure, vibration-resistant installation
- Spring contact design — consistent electrical contact and tool-free battery replacement
- UL94 V-0 housing — flame-retardant nylon for safety compliance
- Standard CR2032 fit — compatible with all major CR2032 brands (Panasonic, Energizer, Maxell, Sony)
- 5-pack value — sufficient for multiple PCB builds and prototypes
Compatible With / Common Use Cases
- Arduino RTC modules: DS1307, DS3231 real-time clock backup power (CR2032 keeps time when main power is off)
- Raspberry Pi RTC HAT: DS3231 RTC HAT backup battery socket
- STM32 / ESP32 RTC backup: VBAT pin coin cell supply for internal RTC retention
- BIOS CMOS battery: Replacement holder for PC motherboard CMOS battery socket
- Low-power sensor nodes: Primary 3V power source for ultra-low-power IoT sensor designs
- Custom PCB designs: Any application requiring a removable 3V coin cell supply
Frequently Asked Questions
Q: Will this holder fit CR2025 or CR2016 batteries?
A: The holder is designed for CR2032 (3.2mm height). CR2025 (2.5mm) and CR2016 (1.6mm) are thinner and will fit physically but may have loose contact. For reliable contact, use the correct CR2032 battery.
Q: How long does a CR2032 battery last in an Arduino DS3231 RTC module?
A: A CR2032 (225mAh) powering a DS3231 RTC in backup mode (typically 0.84μA) will last approximately 30 years theoretically. In practice, 5–10 years is typical due to self-discharge. The DS1307 draws more current (~500nA) and lasts approximately 5 years on a CR2032.
Q: What is the pin spacing of this battery holder?
A: The two through-hole pins are spaced to fit standard PCB footprints for CR2032 holders. The positive (+) terminal connects to the top spring contact, negative (−) to the bottom plate contact. Check the datasheet footprint before PCB layout.
Package Contents
- 5× CR2032 Coin Cell Battery Holder (DIP through-hole, black)
