Power Capacitor | CJE – 50+ Years of Film Capacitor Innovation

About CJE

Changzhou ChangJie Technology Co., Ltd. is a wholly-owned subsidiary of Shenzhen CECTN Technology Co., Ltd., with over 50 years of experience in the research, development, manufacturing, sales, and service of metallized film capacitors.

We are committed to innovation and quality, providing high-performance capacitors for demanding applications in new energy vehicles, high-voltage DC transmission, medical equipment, rail transit, and industrial power systems.

50+

Years of Experience

Global

Presence

ISO

Certified

Our Products

High-performance film capacitors engineered for reliability, efficiency, and longevity in the most demanding environments.

Snubber Capacitors for IGBT

Especially used for IGBT protection in high-frequency switching circuits. Low ESR, high dv/dt capability.

High pulse current handling
Self-healing metallized film
Flame-retardant housing

DC-Link Film Capacitors

For electric vehicles, inverters, and industrial drives. Replaces electrolytic capacitors with longer life.

High ripple current capability
Low ESL and ESR
Compact PCB mount design

Super High-Voltage Capacitors

Up to 100kV, dry-type design. Ideal for medical imaging, power transmission, and scientific equipment.

Ultra-high dielectric strength
No oil or resin
Low partial discharge

CBB21 Metallized Polypropylene

General-purpose film capacitors with excellent stability and low loss.

High insulation resistance
Wide operating temperature
RoHS compliant

CBB81 High-Voltage Capacitors

Metalized polypropylene/foil construction for high pulse and surge applications.

High energy density
Low inductance design
Long service life

CL21 Metalized Polyester

Cost-effective solution for timing, filtering, and coupling in general electronics.

Miniature size options
High volumetric efficiency
Stable capacitance over time

CIS (X2 Class) EMI Suppression

For electromagnetic interference suppression and connection to AC mains.

Safety certified
High surge withstand
Flame-retardant case

Metalized Film Resonant Capacitors

Designed for high-frequency resonant circuits in induction heating and RF applications.

Ultra-low ESR
High Q factor
Stable under high dv/dt

View All Products

Why Choose CJE Capacitors?

Four key reasons behind our industry-leading reliability and performance.

Advanced Manufacturing

Dozens of major production processes ensure quality
Professional-grade purification room and dust-proof winding
Product aging tests eliminate early failures
ISO9001:2015 and IATF16949:2016 certified

Superior Materials

High-quality, stable, high-pressure films
Flame-retardant, temperature-resistant housing
Low ESR, ESL, and excellent dv/dt characteristics
REACH and RoHS compliant

Customization & Support

Custom designs to meet standards or customer specs
Application engineers assist in early design
Technical support and model selection
Cost-effective solutions for every user

Customer-Centric Service

Branch offices in Shenzhen, Beijing, Foshan
Regular technical visits and exchanges
Fast response and dedicated support
“Customer-first” philosophy since inception

Contact CJE

For inquiries, technical support, or custom solutions, reach out to our team.

Email Us

[email protected]

Call Us

+49 15736573893

+86 519 85760515

Visit Official Website to Contact

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CJE – 50+ Years of Film Capacitor Excellence