Capacitors highly specified for high performance

14 July 2004 Passive Components Industrial (Industry) Mining (Industry)

Murata has available a wide range of speciality ceramic chip capacitors, suitable for a variety of high reliability, high voltage, high frequency and high performance circuitry applications. Intended particularly for high performance RF and microwave circuitry, it says these application specific capacitors have undergone rigorous environmental and electrical testing, to ensure their ultra high reliability in critical applications.

For high frequency, high voltage applications, the ERB series ceramic capacitors provide a low cost alternative to 'cubic' capacitors, making them particularly suitable for high volume production use, says Murata. Built with low-loss COG dielectric and electrode materials, the ERB devices are rectangular in shape, for easy automatic assembly. With a stable temperature coefficient (0 ±30 ppm/°C) and high Q at high frequencies, and high RF power handling capabilities, capacitance ranges of the most popular parts are specified from 1 pF to 1 nF at rated voltages from 50 V to 500 V d.c.

For high power communications equipment requiring high RF voltage or current, Murata offers its high-Q, UV series. These parts can be supplied in chip form or with silver leads with capacitance ranging from 1,5 pF to 130 pF up to 330 pF to 910 pF.

Designed specifically for high power RF applications such as semiconductor manufacturing equipment, medical scanning equipment and RF/HF amplifiers, Murata offers the HPP range capacitors. Available in leaded or chip packages (with non-magnetic terminations for MRI applications), these COG or P90 dielectric devices feature low loss and low ESR, with Q specified as >10 000 at 1 MHz (+25°C). Capable of 12 kVAR reactive power in open mounting applications, the HPP capacitors can dissipate more power with heat sinking, for use in very high power, high current equipment. Capacitance values available range to 1200 pF at 2,5 kV, 680 pF at 3,6 kV and 360 pF at 5 kV. Temperature coefficient is quoted at 90 ±30 ppm/°C (P90) and 0 ±30 ppm/°C (COG).

The devices are manufactured and tested to withstand Mil Std 202 environmental specifications (moisture resistance, thermal shock, low voltage humidity).

Further reading:

Risk-IO manages mining security risks
Security Services & Risk Management Mining (Industry)
[Sponsored] A local mining company with three large operations experienced increased security costs. The liability included no standardised risk assessment, poor management of the efforts to mitigate hazards, and unauthorised access with subsequent theft. The reactive approach to security was not only expensive but also wasteful in the sense that the costs were poorly managed, and there were no metrics to show improvement or trends in incidents.

Read more...

---

3,75 GHz RF inductor
RF Design Passive Components
The ceramic chip wire wound inductor from Coilcraft features a DC resistance of 1 O, a DC current of 175 mA, and a self-resonant frequency of 3,75 GHz.

Read more...

---

Upgraded power inductor series
iCorp Technologies Passive Components
Sunlord’s multiphase co-fired power inductor HTF-MP series has upgraded the single-phase HTF-H products in terms of integrated applications.

Read more...

---

Advanced high-voltage capacitors
RS South Africa Passive Components
These new capacitor families from Panasonic are designed for surface-mount and radial lead applications, offering remarkable performance improvements that meet the evolving needs of industrial applications.

Read more...

---

Watermist suppression in mining
FS Systems Fire & Safety Mining (Industry) Products & Solutions
Watermist suppression systems are highly effective in suppressing flames and controlling heat spread, especially in confined spaces commonly found in mining environments, by generating fine droplets with an increased surface area, enabling rapid heat absorption and cooling during fire incidents.

Read more...

---

Gas detection for mining
FS Systems Products & Solutions Fire & Safety Mining (Industry)
Flammable gas detection is critical in safeguarding mining operations, where combustible gases pose significant risks. Early detection of these gases helps prevent fires and explosions, which can lead to devastating consequences.

Read more...

---

Fire protection for a solvent extraction plant in Africa
FS Systems Fire & Safety Security Services & Risk Management Mining (Industry)
A prominent mining site operates a state-of-the-art solvent extraction (SX) plant, integral to separating and purifying metals from ores, which pose significant fire risks, as SX processes involve highly flammable organic solvents and elevated operating temperatures.

Read more...

---

Quality fire detection installation at Baywear Clothing
G2 Fire Fire & Safety Industrial (Industry) Products & Solutions
JZL Projects and Solutions was asked to provide a comprehensive yet cost-effective and reliable fire detection solution for Baywear Clothing that would be installed with minimum disruption to the factory.

Read more...

---

Chip capacitors for high-voltage applications
RS South Africa Passive Components
TDK Corporation has expanded its line of CeraLink capacitor series B58043 in the EIA 2220 footprint by adding two new 900 V types.

Read more...

---

Moulded inductors
Future Electronics Passive Components
Abracon’s mini-moulded inductors bring all the advantages of their larger counterparts, including superior EMI shielding, high power density, and low core losses, despite their compact size.

Read more...

---