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CR1620 3V Lithium Coin Cell 75mAh Battery for Car Key Fobs and Small Electronics

Component	Specification
Chemistry	Lithium Manganese Dioxide ($LiMn{O}_{2}$)
Model	CR1620
Nominal Voltage	3.0V
Capacity	75mAh
Diameter	16.0 mm
Height	2.0 mm
Weight	Approx. 1.3g

Price

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₹ 16.95

(Tax included)

Barcode: 8881359

Product Description The CR1620 is a compact, high-performance 3V lithium coin cell designed for precision electronics where space is at a premium. With a 16mm diameter and a slim 2mm profile, it is significantly smaller than the standard 20mm series, making it the ideal choice for automotive keyless entry fobs, heart rate monitors, digital watches, and ultra-compact sensor nodes. Its lithium chemistry provides high energy density and a stable voltage discharge, ensuring that your critical low-power devices remain operational for years.

Key Features

Compact Form Factor: 16mm diameter fits into smaller enclosures that cannot accommodate standard CR2032 cells.
Long-Term Reliability: Engineered for a shelf life of up to 10 years with an extremely low self-discharge rate.
Stable Power Delivery: Maintains a flat 3V discharge curve, protecting sensitive microelectronics from voltage drops.
Temperature Resilience: Operates effectively in a wide range of temperatures, from cold outdoor environments to high-temperature industrial settings.
Leak-Resistant Casing: Premium stainless steel construction prevents electrolyte leakage and internal corrosion.

Technical Details

Standard Discharge Current: 0.1mA
Max Pulse Discharge Current: 5.0mA
Operating Temperature: -20°C to +60°C
Self-Discharge Rate: < 1% per year
Terminal Type: Flat contact (Universal)

Prototyping and Engineering Tips from Robogears

The "1620" Code: Remember that the first two digits (16) represent the 16mm diameter, and the last two (20) represent the 2.0mm thickness. If you are designing a custom enclosure, ensure your battery clip is rated specifically for 16mm cells to avoid a loose fit.
Key Fob Replacement: This is one of the most common batteries for Honda, Mazda, and Toyota key fobs. If your remote's range is decreasing, replacing the CR1620 is the most effective fix.
Low-Power IoT: This cell is perfect for BLE (Bluetooth Low Energy) beacons or Zigbee sensors that remain in "Deep Sleep" most of the time. The 75mAh capacity can last over a year if the peak current during transmission is kept under 5mA.
Handling with Care: Avoid using metal tweezers to pick up the battery, as bridging the top and bottom will short the cell and deplete its capacity instantly. Always handle by the edges using plastic tools or a dry cloth.

Package Includes

1 x CR1620 3V Lithium Coin Cell (75mAh)

Disclaimer Images are for reference; actual brand marking or packaging may vary by batch. Specifications subject to change by manufacturer. Keep away from small children; lithium batteries are hazardous if swallowed.

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