CR-2032L/BN Coin Cell Battery Specifications and Applications

ElecSuppliers Part Number GuideSep 26, 2026

CR-2032L/BN is a CR2032-size coin-type lithium battery designed for electronic equipment that requires a compact and stable primary power source. The model belongs to the CR series lithium manganese dioxide batteries and provides a nominal voltage of 3V.

The CR2032 format uses a 20 mm diameter and 3.2 mm height, making it suitable for products where PCB space and battery thickness are important design considerations. Panasonic's product information identifies CR2032 as a standard CR-series coin lithium battery, while its part-number comparison documentation lists CR-2032L/BN as the newer designation corresponding to CR2032L and other previous part numbers.

CR-2032L/BN Electrical Specifications

The CR2032 battery format has a nominal voltage of 3V and a nominal capacity around 225mAh for the standard Panasonic CR2032 version. The standard continuous drain specification is 0.2mA.

The battery uses lithium manganese dioxide chemistry, which provides a relatively high operating voltage for a compact primary battery. Its low self-discharge characteristics also make the CR2032 format suitable for applications that need long service or standby operation.

For designs using CR-2032L/BN, the actual electrical performance should be checked against the exact battery construction and terminal configuration supplied by the manufacturer. This is particularly important when the battery is specified with tabs, leads, or a particular mounting configuration.

CR-2032L/BN Dimensions

The standard CR2032 format has a maximum diameter of approximately 20.0 mm and a maximum height of approximately 3.2 mm. The typical weight of a standard CR2032 cell is about 2.8g without additional terminals.

These dimensions allow the battery to fit into compact battery holders and embedded power sections. Designers should still check the mechanical drawing of the specific CR-2032L/BN configuration because terminal structures can affect the overall installation space.

CR-2032L/BN Operating Temperature

The standard Panasonic CR2032 battery is specified for an operating temperature range of approximately -30°C to +85°C. This range covers many consumer, industrial, control, and electronic equipment applications.

For equipment exposed to higher temperatures, designers should not assume that every CR2032 variant has the same temperature characteristics. Panasonic also offers specialized CR2032 versions with extended temperature ranges, so the exact part number and construction should be confirmed before qualification.

CR-2032L/BN Applications

CR-2032L/BN can be used in electronic products that require compact primary battery power. Typical applications for CR2032 batteries include memory backup, remote controls, keyless entry devices, security products, electronic instruments, meters, and other low-power electronic equipment.

The battery format is especially useful for backup power because the cell can remain connected to a low-current circuit for extended periods. It is commonly found in systems where maintaining configuration data, clock information, or other stored information is important when the main power source is removed.

CR-2032L/BN PCB and Battery Holder Design

When integrating CR-2032L/BN into a PCB, engineers should consider battery polarity, holder dimensions, contact resistance, clearance, and replacement requirements.

A dedicated battery holder can provide convenient installation and replacement, while tabbed battery versions may be used when the battery needs to be permanently connected to a PCB or another assembly. The terminal configuration should therefore be matched with the mechanical design and assembly process.

The circuit should also account for the battery's discharge characteristics and the current requirements of the connected load. Applications with short-duration pulse loads should be evaluated separately because the nominal capacity does not represent the available energy under every load condition.

CR-2032L/BN Selection Considerations

When sourcing CR-2032L/BN, buyers should verify the manufacturer, exact part number, battery chemistry, nominal voltage, capacity, terminal configuration, dimensions, operating temperature range, packaging, and production date.

For large-volume procurement, storage conditions and battery shelf life are also important. Coin-type lithium batteries should be stored and handled according to the manufacturer's requirements, particularly when they are intended for long-term inventory.

For industrial applications, buyers should also confirm applicable safety and transportation documentation before shipment. This can include battery safety documentation and relevant lithium battery transport test information.

CR-2032L/BN Sourcing

CR-2032L/BN is a specific battery part number, so sourcing should focus on exact manufacturer and configuration rather than relying only on the generic CR2032 designation. Different CR2032 batteries may share the same basic dimensions and voltage while having different capacities, temperature ranges, terminal structures, or intended applications.

When requesting a quotation, buyers should provide the complete CR-2032L/BN part number, required quantity, terminal requirements if applicable, target delivery location, and required delivery date. This allows suppliers to confirm the correct battery configuration and available stock more accurately.

CR-2032L/BN for Electronic Equipment

With its compact 20 mm × 3.2 mm form factor and 3V nominal voltage, the CR2032 platform remains widely used in electronic equipment requiring small primary batteries. CR-2032L/BN can be considered for memory backup, control electronics, compact instruments, remote devices, and other low-power applications where space and long standby operation are important.

For production projects, the final selection should be based on the complete electrical, mechanical, environmental, and sourcing requirements of the equipment rather than the CR2032 size alone.