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CR2050HR
CR2050HR
| Part Number | CR2050HR |
|---|---|
| Manufacturer | Maxell |
| Category | Batteries & Power Products > Primary Batteries (Non-Rechargeable) – Coin / Button Cell |
| Description | High-Heat Resistant Lithium Manganese Dioxide Coin Cell Battery, 3.0V Nominal Voltage, 350mAh Capacity, 2050 Package, Extended Operating Temperature Range (-40°C to +125°C). |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The CR2050HR is a high-heat resistant primary lithium manganese dioxide coin cell battery manufactured by Maxell. This 3.0V non-rechargeable battery adopts Maxell specialized heat-resistant sealing technology and optimized electrolyte formula. The “HR” suffix stands for high-temperature version, supporting stable operation from -40°C to +125°C. It can withstand harsh under-hood automotive environments, thermal sterilization and outdoor industrial scenarios where ordinary coin cells fail. Featuring 20.0 mm × 5.0 mm outline and 350mAh nominal capacity, it delivers stable discharge performance, high energy density and reliable leakage resistance. Ideal power source for TPMS, smart utility meters, tracking beacons and high-temperature industrial sensors.
Core Advantages
Extreme Operating Temperature Range (-40°C to +125°C)
Built with dedicated high-temperature sealing structure and electrolyte, stable continuous operation up to +125°C without leakage or severe capacity attenuation.
Higher Capacity in a 20 mm Diameter Profile
Provides 350mAh nominal capacity within 20.0 mm × 5.0 mm dimension, offering longer service life for low-power MCUs and RF transmitters compared with CR2032HR.
Exceptional Anti-Leakage & Acceleration Resistance
Precision crimp sealing structure resists intense mechanical vibration, thermal shock and high centrifugal force, suitable for automotive wheel-end equipment and industrial machinery.
Ultra-Low Self-Discharge Rate
Annual self-discharge rate less than 1% under room temperature, ensuring long shelf life and stable long-term standby operation.
Key Specifications
| Brand | Maxell |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free / Mercury-Free |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | Coin Cell 2050 (20.0 mm Diameter × 5.0 mm Height) |
| Mounting Type | Coin Cell Holder / PCB Tab Pin Solder Mount |
| Surface Marking / Silkscreen | Maxell CR2050HR / 3V Marking |
| Battery Chemistry | Primary Lithium Manganese Dioxide – Heat Resistant |
| Nominal Voltage | 3.0 V |
| Nominal Capacity | 350 mAh (Test condition: 20°C, discharged to 2.0V at 0.2mA) |
| Standard Discharge Current | 0.2 mA |
| Cut-off Voltage | 2.0 V |
| Operating Temperature Range | -40°C to +125°C (High-Heat Grade, long-term use above 85°C please consult manufacturer) |
| Maximum Withstand Centrifugal Acceleration | ≤2000g |
| Self-Discharge Rate | ＜1% per year (at room temperature) |
| Weight | Approx. 4.1 g |
| Packaging Format | Tray / Blister Pack / Bulk |
Precautions
- Do Not Recharge: The CR2050HR is a non-rechargeable primary lithium battery. Recharging may cause gas buildup, leakage, overheating, explosion or fire.
- Prohibited Short Circuit: Avoid direct contact between positive and negative terminals. Short circuit will trigger abnormal heating and safety hazards.
- Welding Reminder: Do not directly solder to the battery body. If tabs are required, choose batteries with pre-fabricated solder tabs.
- High Temperature Notice: For continuous long-term operation above 85°C, please contact Maxell to confirm applicable working conditions in advance.
- Storage Requirements: Store batteries in cool and dry environment. Avoid direct sunlight, high humidity and extreme temperature fluctuations.
- Forbidden Disassembly: Do not pierce, crush or disassemble the battery. Internal electrolyte contact will cause corrosion injury.
Typical Applications
- Automotive Tire Pressure Monitoring Systems (TPMS) and wheel-mounted sensor modules
- Engine compartment telemetry, electronic toll collection (ETC), and OBD tracking units
- Industrial automated meters, high-temperature boiler instrumentation, and environmental data loggers
- Outdoor smart utility gas/water meters, remote pipeline monitoring, and oil/gas sensors
- Medical equipment requiring steam or heat sterilization procedures
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS, YFH Standard |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, bulk pricing and custom versions with solder tabs, pins and wire assemblies, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What is the main difference between Maxell CR2032HR and CR2050HR?
A: Both have 20.0mm diameter and -40°C ~ +125°C high-temperature resistance. CR2050HR thickness is 5.0mm (CR2032HR is 3.2mm), with higher nominal capacity of 350mAh vs 200mAh, for longer working duration.
Q2: Is Maxell CR2050HR rechargeable?
A: No. CR2050HR belongs to primary lithium manganese dioxide battery and cannot be recharged. Charging will cause swelling, leakage or safety risks.
Q3: Why is CR2050HR popular for Automotive TPMS sensors?
A: Wheel-mounted TPMS suffers high temperature, centrifugal force and continuous vibration. CR2050HR features high heat resistance and sufficient capacity to guarantee long service life under harsh environments.
Q4: Can you supply CR2050HR with custom solder tabs and wire leads?
A: Yes. We offer factory pre-assembled batteries with vertical / horizontal solder tabs, insulated lead wires and small connectors according to customer requirements.
Q5: Are there alternative coin cell models that can replace CR2050HR?
A: Standard CR2050 can fit same mechanical size, but it lacks the -40~125°C high-temperature resistance of HR version. It is NOT recommended for automotive or high-heat equipment. No direct drop-in equivalent high-temperature battery without redesign.
Q6: What is the shelf life of Maxell CR2050HR?
A: It has an ultra-low self-discharge rate below 1% per year at room temperature, with effective shelf life up to 10 years under proper cool & dry storage conditions.
Q7: Can I directly solder wires onto the battery casing?
A: Strictly not recommended. Direct soldering will damage internal sealing structure and cause leakage. Please select batteries with factory welded tabs for soldering installation.
Q8: Can CR2050HR work continuously above 85°C?
A: It supports up to 125°C peak temperature. For long-term continuous operation above 85°C, please confirm detailed working cycle parameters with us before mass design-in.
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