Rectangular Al-Electrolytic and Polymer Capacitors
Why Rectangular Capacitors?
YAGEO-KEMET has further expanded its portfolio of rectangular capacitors. The rectangular form factor is a game-changer in power electronics. These capacitors provide superior volumetric efficiency, high ripple current handling, and robust vibration resistance, mak-ing them ideal for demanding applications such as automotive, industrial power supplies, renew-able energy systems and data centers.
Seamless Integration With Heat Sinks
The large flat surface area enables seamless integration with heat sinks, enhancing thermal dissipation and increasing ripple current capability or increasing life with the same ripple current. A further advantage is their stacking ability or a modular solution with the option of customizing the solutions according to the customer's needs.
Average Hot Spot, Case & Heat Sink
The graphic shows a comparison of natural convection with different heatsink conditions, where capacitors were subjected to a ripple current of 20Arms to induce a temperature rise at the hot spot, aiming to investigate the capacitor's response.
Overall, the capacitors exhibit a consistent response in terms of thermal dissipation when subjected to various heat sink conditions. This uniformity is observed irrespective of differences in surface area contact or mounting disposition, highlighting the versatility of using this capacitor with a heat sink.
AAR8S – The Industry’s First Rectangular SMD Aluminum Electrolytic DC-Link Capacitor
AEC-Q200 qualified AAR8S is a new generation rectangular surface-mount Al-electrolytic capacitor designed for applications mainly in the field of e-mobility, such as inverters or on-board charg-ers, looking into full SMD capability. Also, UPS and Micro Inverters can benefit from this capac-itor. This first-to-market product provides high capacitance, excellent ripple current capability, and superior thermal efficiency. With a low-profile design, it is ideal for applications where height constraints are critical. The operational lifetime is specified with 2,000 hours @105°C.
- Capacitance: 150μF
- Rated Voltage: 450VDC
- Rated Ripple Current: 1.23Arms @100Hz/105°C
- Operating Temperature Range: -40 to +105°C
- Dimensions: 46×52.7×15mm (W×L×H)
AAR7V – High-Voltage, High-Performance
With a voltage rating of 500V, the AEC-Q200 quali-fied AAR7V is a high-voltage aluminum electrolytic capacitor engineered for EV powertrains, onboard chargers, industrial power supplies and renewable energy applications. It features a 10,000-hour lifespan at 85°C, excellent ripple current handling, optimized thermal performance, and a high vibration resistance of up to 40g.
- Capacitance Range: 110 to 200μF
- Rated Voltage: 500VDC
- Rated Ripple Current: 1.1 to 1.7Arms @100Hz/85°C
- Operating Temperature Range: -40 to +85°C
- Dimensions: 46×38.1×13.5mm to 46×57.2×13.5mm (W×L×H)
- Optimized designs are available on request
APL90 – Compact 48V Polymer Capacitor with High Ripple Current Capability
The APL90 is an AEC-Q200 qualified aluminum polymer capacitor designed for 48V automotive and industrial applications. Its rectangular shape allows for efficient stacking and heat sink integration, optimizing thermal performance. With a very high ripple current capability of up to 25.8 Arms* and robust vibration resistance of 20g, it is ideal for DC-link in 48V systems like MHEV inverters or motor drives such as water pumps, power steering, or cooling fans, and input capac-itor for 48V system data center power supplies. Applications requiring bulk capacitance, such as storage or radar systems, could also benefit from the low ESR performance of polymer capacitors.
- Capacitance: 1,100μF
- Rated Voltage: 63VDC
- Rated Ripple Current: 11.2 to 25.8Arms* @100kHz/125°C
- Operating Temperature Range: -55 to +125°C
- Dimensions: 24×53.8×8mm (W×L×H)
- Optimized designs are available on request
APL9V – High-Voltage Polymer Capacitor with Superior Thermal Management
The APL9V is a high-voltage aluminum polymer capacitor designed for applications up to 250V (or 500V when used in series). Its solid polymer technology enables exceptional ripple current performance. This coupled with vibration resis-tance up to 20g, makes it suitable for HV invert-ers, e-compressors and motor control applications.
- Capacitance: 60μF
- Rated Voltage: 250VDC
- Rated Ripple Current: 5.06 to 12.44Arms* @100kHz/125°C
- Operating Temperature Range: -55 to +125°C
- Dimensions: 26×53.8×9.5mm (W×L×H)
Your Contact Person
For more information about these products or this technology, samples or prices, please contact Roland Trimmel.
