First ever 35 V SMT tantalum chip capacitor

12 November 2008 Passive Components

Kemet announced the release of what is said to be the first ever 35 V rated surface-mount polymer tantalum chip capacitor. Since their introduction in the 1990s, polymer tantalum capacitors have become a popular choice for capacitance solutions in the portable consumer electronics market due to their low ESR (equivalent series resistance), high reliability, volumetric efficiency, low-profile design and benign failure mode. To date, these devices have been most commonly used in 14 V (or less) applications and are limited to voltage applications that do not exceed 20 V of continuous duty. These voltage restrictions are driven by limitations in the materials and manufacturing processes that have prevented the industry from achieving higher voltage ratings.

By overcoming these limitations through advancements in materials and manufacturing processes, Kemet has successfully constructed and qualified the first polymer tantalum capacitors suitable for applications of up to 28 V of continuous duty. In addition, these devices have demonstrated surge voltage handling capabilities in excess of 46 V. This increase in voltage rating now provides designers working with higher-voltage applications, such as 24 V and 28 V power input rails, with the option of incorporating polymer tantalum technology into new designs as opposed to incorporating capacitance technologies that do not offer similar performance advantages.

Designated as the T521 Series, the initial offering in this new series includes the popular low-profile V Case Size (7,3 x 4,3 x 1,9 mm) with a capacitance rating of 15 μF and maximum ESR ratings of 100 milliohms.

Further reading:

Cutting-edge hybrid capacitors
Avnet Silica Passive Components
Panasonic Industry recently announced the launch of the ZVU Series Hybrid Capacitors, a cutting-edge solution tailored to meet the escalating demands of advanced electronic systems.

Read more...

---

Low-profile tantalum chip capacitors
Electrocomp Passive Components
These general-purpose tantalum capacitors from Kyocera AVX are available in multiple case sizes with low profile options.

Read more...

---

Coupled inductor for high-performance applications
Passive Components
This coil with MnZn core is characterised by its high permeability and extremely low RDC values, which achieves excellent power density and very high efficiency.

Read more...

---

Power inductors
iCorp Technologies Passive Components
he HTF-MP series is more suitable for complex multiphase power supply applications in design, effectively meeting the needs of ultra-thin and high-power devices.

Read more...

---

SMT power inductors
Future Electronics Passive Components
The Würth Elektronik WE-MXGI SMT power inductors are the latest addition to Würth Elektronik’s moulded power inductor series, engineered for high-frequency power applications.

Read more...

---

Large capacitance MLCCs at 100 V
RS South Africa Passive Components
TDK Corporation has expanded its CGA series for automotive multilayer ceramic capacitors to 10 µF at 100 V in 3225 size.

Read more...

---

Film and mica capacitors
Actum Electronics Passive Components
By utilising various polymer dielectrics plastics, Exxelia film and mica capacitors meet most technical requirements and serve all functions from standard filtering to specialised applications.

Read more...

---

Power-over-coax inductors
RS South Africa Passive Components
TDK has expanded the ADL3225VF series of wire-wound inductors for automotive power-over-coax (PoC).

Read more...

---

Thick film power resistors
Electrocomp Passive Components
Vishay has released a new product to the market, its thick film power resistor, which is offered in a clip-mount TO-247 package.

Read more...

---

Compact EMI suppression capacitors
RS South Africa Passive Components
These new components from TDK are 20% smaller than previous models and meet Grade III Test B standards for temperature, humidity, and bias.

Read more...

---