Product Overview

The SIHC0820-3R0-27F is a next-generation sodium-ion hybrid capacitor engineered for high-performance energy storage. By combining an advanced NaFePO4 cathode with a rugged hard carbon anode, this cutting-edge sodium-based chemistry delivers significantly higher energy density than traditional EDLCs alongside exceptional power delivery.

Designed to perform in the most demanding environments, it offers superior low-temperature operation down to -40°C. With a rated voltage of 3.0V and a 27F capacitance, it serves as an ultra-reliable solution for energy buffering, backup power, and high-pulse current delivery. As a completely non-lithium system, it provides inherent safety advantages and excellent cost-effectiveness for IoT devices, electronic shelf labels (ESL), and industrial electronics.

Key Specifications
The SIHC0820-3R0-27F operates within a voltage range of 1.5V to 3.6V (3.0V rated) with a maximum charging voltage of 3.65V. It delivers a rated capacitance of 27F (measured from 3.6V down to 1.5V at 25±3°C). Featuring excellent electrical performance, it maintains a low DC internal resistance (DCR) of ≤600mΩ and an AC internal resistance (ACR) of ≤200mΩ. Designed for versatile power management, it supports a 200mA continuous discharge current and can handle peak pulse currents up to 1.5A (<1s). With an ultra-low leakage current of ≤3.0μA after 72 hours, this hybrid capacitor ensures reliable, long-term efficiency across an impressive operating temperature range of -40°C to 70°C.

Technical Parameters

• Operating Temperature: -40°C to 70°C

• Operating Voltage Range: 1.5V to 3.6V

• Rated Voltage: 3.0V

• Maximum Charging Voltage: 3.65V

• Rated Capacity (@25±3°C): 27F (tested from 3.6V to 1.5V)

• DC Internal Resistance (DCR): ≤600mΩ (@25±3°C, 3.6V, 10ms)

• AC Internal Resistance (ACR): ≤200mΩ (1kHz, 3.4V @25±3°C)

• Continuous Discharge Current: 200mA

• Pulse Discharge Current (<1s): 1.5A

• Leakage Current: ≤3.0μA (@25°C after 72 hours)

• Ultra-Long Cycle Life: ≥50,000 cycles

Cycle Life and Longevity
The SIHC0820-3R0-27F delivers an ultra-long service life, exceeding 50,000 cycles under standard test conditions (5C charge/discharge between 3.6V and 2.0V). Even after 50,000 cycles, the capacitor retains at least 70% of its initial capacitance, with the internal resistance remaining within 4 times its original value. Additionally, its advanced sodium-ion chemistry demonstrates exceptional long-term storage stability: after 30 days of continuous over-discharge storage, it maintains $\ge$90% of its initial capacitance, and the internal resistance increases by no more than 2 times.

Temperature Performance

Engineered for reliability in extreme environments, the SIHC exhibits excellent thermal stability:

• Low-Temperature Resilience (-20°C): Retains ≥70% of its initial capacitance, with the internal resistance restricted to ≤10 times the initial specified value.

• High-Temperature Performance (+65°C): Capacitance variance remains within a tight ±10% range, with internal resistance staying strictly within initial specified limits.

• Damp Heat Storage (60±3°C, 90±3% RH for 1,000 hours): Successfully maintains ≥70% capacitance and keeps internal resistance within ≤2 times the initial value.

• High-Temperature Floating Test (65°C @ 3.6V for 1,000 hours): Ensures robust long-term reliability, retaining ≥70% capacitance and keeping internal resistance ≤4 times the initial value.

Low Self-Discharge and Maintenance Free

Featuring an ultra-low leakage current (≤ 3.0μA)  and minimal self-discharge, this hybrid capacitor requires zero maintenance throughout its entire lifecycle. Unlike traditional batteries that suffer from memory effects and rapid degradation during partial cycling, the SIHC series delivers consistent, uninterrupted performance across tens of thousands of cycles, significantly reducing device maintenance costs.

High-Safety Non-Lithium System
Utilizing a cutting-edge, non-lithium sodium chemistry, this capacitor offers inherent safety advantages over lithium-ion alternatives. It eliminates the risks of lithium plating and thermal runaway. The product fully complies with global safety standards for energy storage devices, demonstrating zero risk of fire or explosion under rigorous abuse testing—including overcharge, short circuit, thermal exposure, and mechanical stress.

Technical information

Q1: Do you provide free samples?
A: Yes, a few pieces of free samples can be provided, but freight will be charged.

Q2: What is the warranty period for this product?
A: We provide a 1-year warranty from the date of purchase.

Q3: What are your payment terms?
A: We currently accept payments via T/T (Telegraphic Transfer) and L/C (Letter of Credit).

Q4: Do you accept OEM or ODM orders?
A: Yes, we do. We can print your custom logo on the products and provide tailored design solutions for your specialized battery packs or capacitor modules.

Q5: What is your monthly production capacity?
A: Our current production capacity is 1.8 million cells per month, ensuring a stable and reliable supply for large-scale orders.

Q6: What are your shipping and transportation methods?
A: We primarily ship orders by sea for bulk volumes. However, we can also arrange air freight or express delivery (such as DHL, FedEx, or UPS) depending on your urgency, order size, and destination.

Q7: What certifications do your products have?
A: We have obtained UN38.3, MSDS, and other relevant international certifications to ensure safe transportation and usage.

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