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Low-ESR High-Ripple CR-Series Electrolytic Capacitor for SMPS

Engineered for switching mode power supplies, our CR-series surface-mount electrolytic capacitors deliver exceptional low ESR and high ripple current handling. With a compact 5.5mm profile and an ultra-wide operating temperature range of -55°C to +105°C, they enable high-density PCB designs and seamless integration with automatic insertion machines. Ideal for industrial power electronics requiring reliable performance in demanding environments

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Product Description

CR Series Low ESR High Ripple Electrolytic Capacitor for SMPS Overview

Key Design Features for High-Density PCBs

The CR series is a chip-type aluminum electrolytic capacitor engineered for surface mounting on high-density printed circuit boards (PCBs). With a maximum height of 5.5mm, it supports automated insertion machines using carrier tape, enabling seamless integration into high-volume commercial production lines. The capacitor operates across a temperature range of -55℃ to +105℃, making it suitable for use in diverse industrial environments with extreme temperature fluctuations.

Core Performance Advantages for SMPS

This series is optimized for low equivalent series resistance (ESR) and high ripple current handling capabilities, which are critical for stable operation of switching mode power supplies (SMPS). These characteristics help reduce power loss, minimize heat generation, and extend the service life of power systems. The capacitors are manufactured with standardized processes to ensure consistent performance across production batches.

Core Electrical Specifications of CR Series Electrolytic Capacitors

Item	Characteristics
Operating temperature range	-55-+105℃
Leakage curre nt max.	=0.01CV or 3 μ A whichever is gareater(after 2 minutes)
Capacitance tolerance	±20% at 120Hz, 20℃
Dissipation factor max. (At 120Hz,20℃)	WV	6.3		10		16			25		35		50
	tan 8	0.27		0.23		0.19			0.15		0.13		0.11
	WV 6.3 10 16 25 35 50
Low temperature characteristics Impedanceratioat 120Hz)
	Z-25℃/Z+20℃		3		3			2		2		2
	Z-40℃/Z+20℃		8		5			4		3		3
Loadlife (after application of the rated voltage for 1000 hours at 105℃	Leakage current Capacitance change tan5						Less than specified value Within ±25% of initial value Less than 200% of specified value
Shelf life(at 105℃)	Alter 1000 hours no load test, leakage current, capacitance and tanδ are same as load life value.
Resistance to soldering heat	The following specifications shall be satisfied when the capacitors are restored to 20℃ after exposing them at 250℃ for 30 seconds.
	Leakage current						Less than specified value
	Capacitance change						Within ±15% of in itial value Less than specified value
	tan5

• DIMENSIONS & MAXIMUM PERMISSIBLE DIFFERENCES

Low-ESR High-Ripple CR-Series Electrolytic Capacitor for SMPS

• DIMENSIONS & MAXIMUM PERMISSIBLE RIPPLE CURRENT

μF / WV	6.3		10		16		25		35		50
0.1											4	2.3
0.22											4	3.4
0.33											4	4.1
0.47											4	4.9
1											4	7.2
2.2											4	10.7
3.3											4	13.1
4.7							4	13	4	14	5	18.1
10					4	17	5	23	5	24	6.3	30.8
22	4	22	5	27	5	30	6.3	39	6.3	42
33	4	31	5	33	6.3	43	6.3	48
47	5	36	6.3	46	6.3	51
100	6.3	50					Ripple current(mA ims) at 105℃, 120Hz Case size Φ D(mm)
150							Ripple current(mA ims) at 105℃, 120Hz Case size Φ D(mm)

Industrial Applications for CR Series Surface Mount Capacitors

Primary Use Cases in Power Systems

CR series capacitors are primarily used in power supply systems that require stable voltage regulation and ripple suppression. Their low ESR and high ripple current characteristics make them suitable for switching mode power supplies (SMPS), industrial uninterruptible power supplies (UPS), and frequency converters.

Compatible Industrial Equipment

These capacitors are also integrated into various industrial devices, including stepping servo controllers, AC servo systems for sewing equipment, and health device controllers. They have been adopted by multiple leading manufacturers in these sectors for consistent performance.

Quality Assurance and Manufacturing Credentials

Production Capabilities and Certifications

The manufacturer was established in Beijing in 2001 and operates production bases in Suzhou and Anhui. It holds 2 patented technologies and 8 copyrights for production control software. All CR series capacitors conform to EU standards and have passed CE and CB testing certifications. The company uses high-precision automatic production equipment to ensure product consistency.

Rigorous Performance Testing Standards

Every batch of CR series capacitors undergoes comprehensive testing, including 1000-hour load life tests at 105℃, 1000-hour shelf life tests, and soldering heat resistance tests at 250℃ for 30 seconds. All products must meet the specified performance criteria before shipment.

Core Technologies

The company possesses 2 patented technologies and 8 copyrights for production control software. The products with a working voltage of 600V that are mass-produced are domestically leading.

Product Standards

The products meet the EU standards and have passed the CE and CB testing certifications.

History of Development

In 2001, the enterprise was established in Beijing.
In 2007, the Suzhou branch was established, and in the same year, the production plant was relocated to Suzhou.
In 2011, the construction of the Anhui factory was initiated.
By the end of 2012, the Anhui factory was officially put into production.
In May 2013, the core production equipment was updated, with a cumulative investment of RMB 15 million in the equipment.

Cooperative Customers

For stepping servo controllers: Shenzhen Leadshine, Beijing HollySys, Start and others.
For AC servo systems of sewing equipment: Baumax, Supu, Hengqiang, Wolong.
In the field of health equipment controllers, UUcap capacitors account for more than 70% of the market share. The company is the designated supplier for brands such as Icon (USA), Shuhua, and Oma.
Customers in industries such as industrial UPS, switching power supplies, and frequency converters.
A.O. Smith, Technology Development Company of Tsinghua University.

Packaging and Logistics for Commercial Procurement

Automation-Friendly Packaging

CR series capacitors are supplied in carrier tape packaging, which is fully compatible with automated insertion machines used in high-volume commercial production. This packaging format reduces manual handling and improves production efficiency.

Global Shipping and Payment Options

The manufacturer supports multiple global shipping methods including FedEx, UPS, and express delivery. Accepted payment methods include PayPal, VISA, MoneyGram, and Western Union. Lead times and shipping costs are provided upon request based on order quantity and destination.

FAQ About CR Series Electrolytic Capacitors

What is the maximum height of CR series capacitors?

The maximum height of CR series chip-type capacitors is 5.5mm, making them suitable for high-density PCB designs with limited vertical space.

What is the capacitance tolerance of these capacitors?

The capacitance tolerance is ±20% when measured at 120Hz and 20℃, which is the standard testing condition for aluminum electrolytic capacitors.

Can CR series capacitors withstand reflow soldering?

Yes, they can withstand exposure to 250℃ for 30 seconds. After cooling to 20℃, their electrical parameters remain within the specified limits.

Do these capacitors have international certifications?

Yes, CR series electrolytic capacitors conform to EU standards and have obtained CE and CB testing certifications, making them suitable for global commercial procurement.

For detailed quotations, sample requests, or custom specification inquiries, please contact our technical and sales team. We provide tailored solutions for different industrial applications.