Wednesday, August 14, 2013: A variety of capacitors are available in the market like film capacitors, ceramic capacitors, electrolytic capacitors, aluminium electrolytic capacitors and tantalum electrolytic capacitors, and a new range of surface mountable, multi-layer ceramic capacitors (MLCC). There are also many different types of resistors available like carbon composition resistors, film or cermet resistors, wire-wound resistors and semiconductor resistors, of which chip resistors, are picking up in demand. In this section, we feature the new launches in resistors and capacitors. However, companies like Cooper Industries, Bourns, On Chip, Panasonic Electronic Devices Company Ltd, Samsung Electro-Mechanical, Yageo Corporation, Filcon Electronics, and Stead Electronics have not launched any resistors or capacitors in the last six months.
Model: CWR26, Product: Capacitors, Brand: Vishay, Manufacturer: Vishay Intertechnology Inc., USA
Launched in July 2013, the CWR26 tantamount solid tantalum chip capacitor has a low equivalent series resistance (ESR) of 0.180 Ω at 100 kHz.
Key features
- In addition to its very low ESR, the CWR26 is offered with Weibull level B, C, and T failure rates
- For high-reliability applications, the capacitor features a capacitance range of 10 μF to 100 μF, over voltage ratings from 15V DC to 35V DC, with capacitance tolerance of ± 5 per cent, ± 10 per cent, and ± 20 per cent
- Available in F, G, and H case codes, the device features an operating temperature of -55°C to +85°C, +125°C with voltage derating
Contact details: Vinod Tarale, distribution sales manager, Ph: +91-80-3058-0060, vinod.tarale@vishay.com, www.vishay.com
India distributors: Arihant Electricals, Rajpal Enterprises
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Model: VCS331Z, VCS332Z, VFP4Z, and CSNG, Product: Resistors, Brand: VFR, Manufacturer: Vishay Precision Group Inc., USA
Launched in June 2013, these ultra-high-precision Z-foil power current sensing resistors are meant for applications where rapid R stabilisation and resistance stability under transient power conditions is required.
Key features
- The VCS331Z, VCS332Z, VFP4Z, and CSNG series feature a low TCR of ±0.2 ppm/°C from -55°C to +125°C, +25°C ref., a PCR (R due to self-heating) of 4 ppm/W typical, and tolerances to ±0.01 per cent
- The devices offer excellent load-life stability up to ±0.005 per cent typical (50 ppm) at 3 W (heat sink) and +25°C for 2,000 hours, a thermal stabilisation time of <1 s, and a wide resistance range from 0.25 Ω to 500 Ω
Contact details: Takashi Sannomiya (Asia contact person), senior sales manager, Ph: +81-80-5409-8970, takashi.sannomiya@vishaypg.com, www.vishaypg.com
India distributor: Intron Resistors
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Model: B41689 series, Product: Capacitors, Brand: EPCOS, Manufacturer: TDK Corporation, Japan
Launched in June 2013, these components are distinguished by their very high ripple current capability and vibration resistance. Thanks to the very low ESR values and a further reduction in internal thermal resistance, the self-heating of the new B41689 series is significantly lower.
Key features
- The devices have a temperature range from -55°C to +150°C and offer a useful life of 10,000 hours at 125°C
- They have rated voltages of 25V DC, 40V DC and 63V DC
- Their capacitance range extends from 270 µF to 4500 µF
- Their optimised mechanical design allows a high vibration stability of up to 40 g to be attained
Contact details: Ph: +91-80-40-39-06-15, sales.in@epcos.com, www.epcos.com
India distributors: AR Enterprises and Arihant Electricals
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Model: ALS60/61 series, Product: Capacitors, Brand: Kemet, Manufacturer: Kemet Corporation, USA
Launched in June 2013, the ALS60/61 screw terminal aluminium electrolytic capacitors have been designed using the latest electrolyte and foil technology to meet the high voltage, high ripple current and long life demands of the electronics industry.
Key features
- Long life, up to 20,000 hours at +85°C (VR, IR applied)
- High ripple current
- Excellent surge voltage capability
- Capacitance range: 560–3,300 μF
Contact details: Ph: 91-806-53-76817, www.kemet.com
India distributors: Arrow Electronics India Ltd and element14
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Model: ZRB series, Product: Capacitors, Brand: Murata, Manufacturer: Murata Manufacturing Co Ltd, Japan
Launched in June 2013, the ZRB series of monolithic ceramic capacitors (MLCC) has countermeasures for squealing and can be used to replace previous MLCCs without the need for modifying the printed circuit board design.
Key features
- Temperature characteristics: R6 (±15 per cent)
- Rated voltage: 6.3V DC
- Capacitance: 22µF
- Capacitance deviation: M (±20 per cent)
Contact details: Ph: 91-44-6656-6778, www.murata.com
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Model: TCJ 100V and 125V, Product: Capacitors, Brand: AVX, Manufacturer: AVX Corporation, USA
Launched in June 2013, these surface-mount chip capacitors provide excellent capacitance and ultra-low ESR in a compact case size. By maintaining 20 per cent recommended voltage derating, the TCJ series of capacitors significantly extend the useable voltage range and can be used for a wide array of high-voltage applications.
Key features
- The TCJ series exhibits a benign failure mode, which eliminates the ignition failures that can occur in standard MnO2 tantalum technology, increases robustness, and mitigates any tendency to overload or burn
- The TCJ series of capacitors maintains high reliability exceeding 1 per cent per 1,000 hours at 85ºC and full-rated voltage
- Rated for use from -55ºC to +105ºC, 100V and 125V, this series of SMD capacitors features small case sizes (2924 for the 100V and 2917 for the 125V) and low profiles. These capacitors are halogen-free, in accordance with the criteria for environmentally responsible product design that were recently adopted by several other major electronics manufacturers
Contact details: Ph: 91-80-6450-0715, www.avx.com
India distributor: BBS Electronics Pte Ltd
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Model: PZA series, Product: Capacitors, Brand: Rubycon, Manufacturer: Rubycon Corporation, Japan
Launched in May 2013, the PZA series of aluminium solid electrolytic capacitors have low impedance, high ripple current, and are more miniaturised compared with the other types of capacitors.
Key features
- In comparison to conventional low impedance aluminium electrolytic capacitors, the PZA series is two ranks smaller; however, it maintains the same or better ripple current and impedance performances
- This series is suitable for smoothing applications and especially good for control circuits that require quick responses; it contributes towards the miniaturisation of applications
- Temperature: -55ºC to +105ºC
- Rated voltage: 25V DC to 63V DC
Contact details: R Chandramouli, chief manager, sales and marketing, Ph: 9820408945, chandramouli@rubycon.co.jp, www.rubycon.com
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Model: MPET, Brand: Deki, Manufacturer: Deki Electronics Ltd, India
Launched in June 2013, this high stability capacitor has been developed for energy meters used in very humid areas.
Its design performs very well at high temperatures and highly humid environments, but is not suitable for across the line AC applications.
Key features
- Metallised polyester film, non-inductive winding coated with flame-retardant grade epoxy resin
- Typical value: 0.41μf/310V AC
- Rated temperature: 85°C
- Max operating temperature: 100°C
- Voltage proof: 800V DC for 1 minute
- Expected service life at 25°C, 310V AC at RH<60 per cent>100000 hours
Contact details: Mohammed Shariq, marketing manager, Ph: +91-120-2584687/88, shariq@dekielectronics.com, www.dekielectronics.com
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Model: PEM , Brand: PEC, Manufacturer: Precision Electronic Components Mfg Co, India
Launched in January 2013, the PEM range of resistors has been developed to meet the demands of the electronics energy metering industry. These resistors are specifically designed to absorb high energy surges applied at high voltages.
The resistors have gone through tests conducted using 1.2/50 us at voltages varying from 4 KV to 12 KV with a 2ohms output impedance source.
Key features
- Protects MOV from lightning strikes and increases life
- Range of voltage ratings available
- Custom resistance value and special body sizes available
- Flameproof design for safe fusing in the event of short circuits
Contact details: Rajiv Venkatraman, managing director, Ph: +91-40-27126929, vrajiv@peccomponents.com, www.peccomponents.com
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Model: LTR18 series, Product: Resistors, Brand: ROHM, Manufacturer: ROHM Semiconductor, Japan
Launched in December 2012, the LTR18 series of high power wide terminal low ohmic chip resistors is designed for current detection in automotive systems, motors, power supply applications, and more. It offers 1 W of rated power in the 3216 size (3.2×1.6mm, t=0.58mm), which is four times greater than conventional products.
Key features
- Higher power handling capability and improved temperature characteristics make this series ideal for sets with stringent temperature compensation requirements
- Configuring the terminals at the wider sides reduces mechanical stress at the joints, while improving junction reliability against thermal cycling. The result is unmatched reliability
- Excellent temperature coefficient of resistance (TCR). Through material and resistive element optimisation, ROHM has been able to provide the industry’s best TCR at low resistances
Contact details: Y Suresh, marketing engineer, Ph: 044-43520008, suresh@rohm.in www.rohm.com
India distributors: Arrow Electronics India Pvt Ltd and Digi-Key Corporation
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