What Is the Murata CR1216 Lithium Battery on Mouser?

The Murata CR1216 is a 3V lithium manganese dioxide coin cell battery available on Mouser Electronics. Designed for compact devices, it offers stable voltage, long shelf life (up to 10 years), and a temperature range of -30°C to 85°C. Common applications include car key fobs, medical devices, and IoT sensors. Mouser provides datasheets, bulk pricing, and compliance documentation for industrial buyers.

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How Does the CR1216 Compare to Other Coin Cell Batteries?

The CR1216 provides 25mAh capacity, thinner dimensions (1.6mm height), and lower weight compared to CR2032 or CR2025 cells. While smaller than CR1632 (16mm diameter vs. 12mm), it sacrifices capacity for space efficiency. Murata’s version enhances leak resistance through stacked construction, outperforming cheaper alternatives in high-drain pulse scenarios like wireless transmitters.

Battery Model	Diameter	Height	Capacity
CR1216	12mm	1.6mm	25mAh
CR2032	20mm	3.2mm	225mAh
CR1632	16mm	3.2mm	120mAh

Engineers often face tradeoffs between physical size and energy density when selecting coin cells. The CR1216’s ultra-thin profile makes it indispensable in applications where vertical space is constrained below 2mm, such as smart contact lenses or microfluidic medical patches. However, its 25mAh capacity requires careful power management – devices drawing 0.1mA current can expect approximately 250 hours of continuous operation. Recent advancements in Murata’s electrode patterning have reduced internal resistance by 18% compared to 2019 models, enabling better performance in low-temperature environments commonly encountered in automotive applications.

Why Choose Murata Over Other CR1216 Brands?

Murata’s cells demonstrate 23% lower self-discharge (0.5%/year) vs. Renata or Panasonic. Their multi-layer seal reduces gas emission by 40% in humidity tests. Mouser-exclusive SKUs feature extended high-temperature performance (85°C vs. industry-standard 70°C). For mission-critical applications, Murata offers MTBF ratings up to 15,000 hours at 60°C.

Brand	Self-Discharge Rate	Max Temp	Seal Technology
Murata	0.5%/year	85°C	Triple-layer
Renata	0.65%/year	70°C	Double-layer
Panasonic	0.7%/year	70°C	Epoxy resin

Murata’s manufacturing process incorporates laser-welded stainless steel casings that prevent electrolyte leakage in high-vibration environments – a crucial advantage for automotive tire pressure sensors exposed to road shock. Their proprietary manganese dioxide formulation maintains 91% initial capacity after 1,000 thermal cycles between -30°C and 85°C, compared to 83% for generic alternatives. Production facilities utilize AI-powered optical inspection systems that detect micron-level seal imperfections, resulting in a field failure rate below 0.003% per thousand device-hours. These quality controls justify the 12-15% price premium over non-branded cells, particularly in medical applications where battery reliability directly impacts patient safety.

“Murata’s edge in CR1216 production lies in their hermetic glass-to-metal seals, which reduce annual capacity loss to 0.3% compared to industry-standard 1%. For industrial IoT deployments, this translates to 7 extra months of sensor uptime. Their partnership with Mouser ensures just-in-time delivery for automotive Tier 1 suppliers.” – Power Systems Engineer, Fortune 500 Electronics Manufacturer

FAQ

Does the CR1216 contain mercury?

No—Murata eliminated mercury in 2018 per EU Battery Directive 2006/66/EC. Current chemistry uses 99.9% manganese dioxide with lithium foil anode.

What’s the maximum continuous discharge current?

3mA continuous (0.5mA for 10-year life). Pulse currents up to 15mA are permissible for 2ms with 10-second intervals.

How to check remaining capacity?

Use a BK Precision 8601 electronic load at 1kΩ discharge. Voltage above 2.8V indicates >80% capacity. Never measure open-circuit voltage—it stays near 3V until depletion.