SIHC1840 3.0V 380F Sodium Ion Capacitor 50000 Cycles -40℃ 50A Pulse 2.5A Continuous

Sodium Ion Hybrid Capacitor for Demanding Applications
The SIHC1840-3R0-380F is a 3.0V 380F sodium ion hybrid capacitor that combines a NaFePO4 cathode with a hard carbon anode. This sodium based chemistry offers high energy density compared to EDLCs, excellent power performance, and superior low temperature operation down to -40°C. With ultra long cycle life exceeding 50,000 cycles and high safety due to the non lithium system, it is ideal for IoT devices, electronic shelf labels (ESL), backup power, energy buffering, and industrial electronics.

Key Specifications
Nominal voltage is 3.0V. Operating voltage range is 1.5V to 3.6V. Maximum charging voltage is 3.65V. Rated capacitance at 25±3°C is 380F measured between 3.6V and 1.5V. DC internal resistance (DCR) is ≤50mΩ measured at 3.6V with 10ms pulse. AC internal resistance (ACR) is ≤25mΩ measured at 1kHz and 3.4V. Continuous discharge current is 2.5A. Pulse discharge current (less than 1 second) reaches 50A. Maximum charge current is 5A. Leakage current is ≤15.0μA after 72 hours at 25°C. Operating temperature range is -40°C to 70°C. Storage temperature range is 10°C to 40°C.

Cycle Life and Reliability
Cycle life exceeds 50,000 cycles under standard test conditions (10C charge/discharge between 3.6V and 2.5V at room temperature). After 50,000 cycles, capacitance retention is at least 70 percent of initial measured value and internal resistance remains within 4 times the initial specified value. High temperature and high humidity storage (60±3°C, 90±3% RH for 1000 hours) results in capacitance ≥70 percent and internal resistance ≤2 times initial value. Long term storage performance shows capacitance ≥90 percent and resistance ≤2 times initial value after extended periods.

Temperature Performance
At -20°C, capacitance retention is ≥60 percent of initial value and internal resistance ≤10 times initial specified value. At +65°C, capacitance change stays within ±10 percent of initial value and internal resistance remains within initial limits. The superior low temperature performance (-40°C operation) makes it suitable for outdoor and cold chain applications.

Physical Dimensions
Diameter ΦD is 18mm with +0.5mm maximum. Length L is 41±1.5mm. Lead length L1 is 27.5±1.0mm and L2 is 25.0±1.0mm. Lead diameter Φd is 0.8±0.1mm. Lead pitch P is 7.5±0.5mm. Weight is ≤21.0 grams. The cylindrical aluminum shell provides mechanical protection and sealing. The rubber plug prevents short circuits and electrolyte leakage.

Safety and Quality
The product meets general safety requirements with no explosion and no fire under overcharge, short circuit, thermal exposure, and mechanical stress tests. Sodium ion chemistry offers inherent safety without lithium related risks. It complies with IEC 62831 and IEC 62391 standards.

Applications
This SIHC is perfect for IoT devices and smart meters requiring intermittent data transmission and long standby life. It powers electronic shelf labels (ESL) for retail price tags with frequent updates. It serves as a backup power source for memory retention and real time clocks. It provides energy buffering and peak power support for industrial controllers, actuators, and wireless communication modules. Its superior low temperature performance makes it suitable for outdoor electronics, cold chain monitoring, and automotive applications.

Q :Do you provide free sample ?
A: Yes, a few pcs free sample can be provided, but freight will be charged

Q: what is the warranty?
A: one year

Q:What is your payment term ?
A: T/T,L/C

Q:do you accepte OEM order ?
A: Yes，you can print yourself logo, also we can provide the design of outlook for your special battery pack

Q :How many cells you can produce per month?
A: 1.8million

Q :What is the mode of transport?
A: usually by sea

Q:Which certificates do you have
A:We have un38.3,MSDS…etc.

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