CR-1220/HFN Panasonic Battery (Other) In Stock
Panasonic CR-1220/HFN is a lithium manganese dioxide primary coin cell battery rated at 3 V with 35 mAh capacity, measuring 12.5 mm diameter and 2 mm height in the standard CR1220 form factor. Features tab terminals for PCB solder mounting and operates from -30°C to +60°C. Ideal for RTC backup, memory retention, and low-power IoT devices requiring long-life power.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- CR-1220/HFN Datasheet PDF
- Category
- Battery
- Price
- From $0.8040(MOQ 500)
- Temp Range
- -30.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CR-1220/HFN?
- 3 V lithium manganese dioxide chemistry providing stable voltage over full discharge curve
- 35 mAh capacity in compact CR1220 form factor: 12.5 mm diameter, 2 mm height
- Tab (HFN) terminal type for direct PCB solder mounting without a battery holder
- -30°C to +60°C operating temperature range covering industrial and consumer environments
- 2 V cut-off voltage ensuring compatibility with low-voltage RTC and SRAM backup circuits
- Primary (non-rechargeable) cell for multi-year calendar and memory backup applications
What is CR-1220/HFN used for?
The CR-1220/HFN is widely used as a backup power source for real-time clocks, SRAM data retention, and BIOS/CMOS memory in industrial control boards, medical devices, and consumer electronics where the tab terminals allow direct PCB soldering without a separate coin cell holder. Its long shelf life and stable 3 V output also make it suitable for wireless sensor nodes, smart meters, and remote keyless entry systems requiring infrequent but reliable power.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.J.1 |
| HTS Code | 8506.80.00.00 |
Where can I find the CR-1220/HFN datasheet?
CR-1220/HFN Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for CR-1220/HFN?
Compatible alternatives and drop-in replacements for CR-1220/HFN:
suggested
suggested
Frequently Asked Questions
What nominal voltage and capacity does CR-1220/HFN provide for RTC backup circuits?
CR-1220/HFN delivers 3 V nominal voltage with 35 mAh capacity. For a typical RTC drawing 1 µA in backup mode, this translates to approximately 35,000 hours (nearly 4 years) of calendar backup before reaching the 2 V cut-off threshold.
How do the tab terminals on CR-1220/HFN simplify PCB assembly compared to standard coin cell holders?
The HFN tab terminals allow direct solder attachment to PCB pads, eliminating the need for a separate plastic coin cell holder component. This reduces bill-of-materials cost, lowers profile height (since the 2 mm cell body sits flush on the board), and improves vibration resistance in industrial and automotive assemblies.
Can CR-1220/HFN operate reliably in outdoor or industrial enclosures exposed to temperature extremes?
Yes. CR-1220/HFN is rated from -30°C to +60°C, covering typical outdoor industrial enclosure temperatures. The lithium manganese dioxide chemistry maintains a stable 3 V output across this range, unlike alkaline cells that show significant voltage drop below 0°C, making it suitable for outdoor RTCs and data loggers.
What is the CR-1220/HFN cut-off voltage, and which memory or RTC ICs remain operational down to that threshold?
CR-1220/HFN has a 2 V cut-off voltage. Most CMOS RTC and SRAM backup circuits, including common DS1307 and M41T and PCF8563 families, are specified down to 1.8 V to 2.2 V, so they remain fully operational until the battery reaches its 2 V end-of-life threshold, maximizing usable capacity.
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Why Buy from FindMyChip
About Panasonic
Panasonic is a leading electronic component manufacturer. FindMyChip sources Panasonic ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $0.8550 | $427.50 |
| 1000+ | $0.8290 | $829.00 |
| 5000+ | $0.8040 | $4020.00 |
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