LR621 / AG1 1.5V Alkaline Button Cell Battery | Pro Tronix

Product Description

The LR621 (commonly cross-referenced as AG1, 364, or LR60) is an ultra-compact alkaline button cell battery designed specifically to deliver reliable 1.5V power to miniature and micro-electronic applications. With an optimized 12mAh capacity, this primary cell provides a stable, continuous discharge profile, helping protect ultra-low-drain circuits from sudden power fluctuations. Constructed with an advanced precision-seal structural casing, it offers strong leak resistance and consistent shelf life stability. For hardware repair technicians, horologists, and electronics developers, it provides an exceptionally dependable, miniature power source for high-density, low-clearance circuit enclosures.

Pinout / Layout Connections

The ultra-small metal housing functions directly as its physical contact terminals:

• Top Face & Circular Outer Ring (+): The flat, wider top surface marked with the battery specifications acts as the positive terminal.

• Bottom Small Circular Face (-): The isolated, slightly raised circular pad on the lower side serves as the negative terminal.

• Micro Insulation Seal: A miniature high-density plastic ring runs along the bottom perimeter, isolating the positive casing from the negative base to prevent short-circuits in micro-holders.

Applications

• Timepieces: Specialized analog wristwatches, digital pocket watches, and miniature clocks.

• Precision Instruments: Micro digital calipers, clinical pen-thermometers, and pocket laser tools.

• Micro Electronics: Ultra-small LED novelty keychains, miniature remote controls, and greeting card sound modules.

• Medical Equipment: Sub-miniature diagnostic tools, specialized hearing aids, and compact indicators.

• IoT & Wearables: Compact tracking beacons and ultra-low-power miniature sensor nodes.

Technical Specifications