Medical Tantalum Capacitors
AVX Corp., Fountain Inn, SC, has released a series of medical-grade tantalum capacitors for noncritical medical devices. The T4Z Medical Series HRC4000 capacitors are designed to replace commercial capacitors in the filtering, hold-up, and charging circuits of noncritical medical devices that require high-reliability and strict change control. Devices include implantable, non-life-sustaining devices, such as heart monitors; external, life-sustaining devices, such as automated external defibrillators; and external non-life-sustaining devices, including patient monitoring equipment. The capacitors are based on the company's MIL-PRF-55365 product line. Case sizes range from 2.54 × 1.27 × 1.27 mm (L × W × H) ±0.38 mm and 0.016 g to 7.24 × 3.81 × 2.79 mm ±0.38 mm and 0.335 g with solder-plated, solder-fused, gold-plated, or 100 percent tin terminations. They offer capacitance values extending from 0.1 to 330 μF, eight standard voltage ratings spanning 4–50 V, and rated operating temperatures extending from –55° to +125 °C.
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