Vishay Intertechnology, Inc. reported that the company has added to its T55 series of vPolyTan™ surface-mount polymer tantalum molded chip capacitors. The new devices come in the Z case (EIA 7343-19) size.
Applications for the new capacitors include decoupling; smoothing; filtering; bulk energy storage in wireless cards; infrastructure equipment; storage and networking; computer motherboards; as well as smartphones and tablets.
The company points out that Tantalum electrolytic capacitors are the preferred choice in applications that require volumetric efficiency, stable electrical parameters, high reliability, and long service life. In fact, according to the company, tantalum capacitors tend to have as much as three times better capacitance per volume efficiency than aluminum electrolytic capacitors.
The additions to the vPolyTan capacitor series have a 0.1 mm lower height than capacitors in the standard V case (EIA 7343-20), thereby allowing increase package density and enabling the design of thinner end products. Vishay optimized the capacitors for power management, battery decoupling, and energy storage in solid state drives, computers, servers, network infrastructure equipment, and wireless transceivers.
Offered in the compact J, P, A, B, T (low-profile B — 1.2mm max.), D, V, and Z case sizes, the T55 series features a wide capacitance range from 3.3µF to 680µF with over-voltage ratings from 2.5V to 63V and capacitance tolerance of ± 20%. The capacitors offer ultra-low ESR from 500mΩ down to 7mΩ at +25 °C, a result of their polymer cathodes, which deliver vastly enhanced performance over manganese dioxide devices. Capacitance values up to 1000µF and ESR values down to 6mΩ are in development.
Operating over a temperature range of -55 °C to +105 °C, the capacitors provide excellent ripple current rating of up to 5.66A IRMS and have low internal resistance for enhanced charge and discharge characteristics. The T55 series featuring lead (Pb)-free terminations, is RoHS-compliant, halogen-free, and Vishay Green. The devices are compatible with high-volume, automatic pick-and-place equipment and have a Moisture Sensitivity Level (MSL) of 3.
- Operating Temperature: -55 °C to +105 °C
- Capacitance Range: 3.3μF to 1000μF
- Capacitance Tolerance: ± 20%
- Voltage Rating: 2.5Vdc to 63Vdc
- Ultra-low ESR
- Molded case available in 8 case codes
- cases J, P: 100% tin
- case A: 100% tin or Ni / Pd / Au
- cases T, B, Z, V, D: Ni / Pd / Au
- Compatible with “high-volume,” automatic pick-and-place equipment
- Moisture sensitivity: level 3
Samples and production quantities of the T55 series capacitors in the Z case size are now available, with lead times of 12 to 14 weeks. Pricing for U.S. delivery begins at $0.40 per piece.