First ever 35 V SMT tantalum chip capacitor

2 April 2008 Passive Components

Kemet has 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 mΩ.

Further reading:

Harnessing Leakage Inductance
Würth Electronics South Africa Passive Components
Würth Electronics has expanded its WE-MCRI product series with the new 1090HL variant (HL = High Leakage), a coupled inductor specifically designed to improve the performance of SEPIC, ZETA and Cuk converters.

Read more...

---

Ultra-slim 30 W DIN Rail AC/DC
Brabek Passive Components
RECOM is extending its REFIN family with the new REFIN2U-S30.

Read more...

---

Panasonic thick film current sense resistors
Avnet Abacus Passive Components
Panasonic thick film current sense resistors enable potential cost savings up to 50% as an alternative to metal shunts

Read more...

---

Space saving SMD common-mode chokes
Electrocomp Passive Components
TDK Corporation presents the EP21 series of flat-wire double chokes designed for common-mode EMI filtering and available in an SMD format with dimensions of only 23,8 x 17,7 mm and heights ranging from 21,6 to 22,3 mm

Read more...

---

Highly rugged GAPS and HAPS proximity sensors
IOT Electronics Passive Components
Now available through Powell Electronics are the GAPS (General Aerospace Proximity Sensors) and HAPS (Harsh Application Proximity Sensors) proximity sensors from Honeywell.

Read more...

---

Understanding EMI Filters and their applications
Vepac Electronics Passive Components
Electromagnetic Interference (EMI) Filters are essential for maintaining electromagnetic compatibility (EMC), allowing multiple devices to function together without interference.

Read more...

---

SMT flat-wire inductor
Passive Components
Würth Elektronik introduces its new WE-SFIA series of flat-wire inductors in 2010, 2013, and 2016 packages.

Read more...

---

Compact SSI family for industrial automation
Altron Arrow Passive Components
Infineon Technologies has introduced the ISSI20BxxF Solid State Isolator (SSI) family, bringing solid-state isolation technology into high-volume applications traditionally served by photovoltaic isolators (PVIs), photovoltaic relays (PVRs), and electromechanical relays (EMRs).

Read more...

---

SGMICRO expands analogue IC portfolio
iCorp Technologies Passive Components Telecoms, Datacoms, Wireless, IoT
SGMICRO continues to add to its analogue IC portfolio at a steady pace, with new devices released across power protection, power conversion, current sensing and RF signal-chain categories.

Read more...

---

SMT flat-wire inductor for automotive electronics
Würth Electronics South Africa Passive Components
Würth Elektronik introduces its new WE-SFIA series of flat-wire inductors in 2010, 2013, and 2016 packages.

Read more...

---