New-Tech Europe | November 2016 | Digital edition

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new products
specifications.
The TPS2660 is the newest addition to TI’s portfolio
of eFuses, providing protection against overvoltage,
overcurrent and short-circuit events for applications.
The portfolio encompasses protection devices for
industrial, personal electronics, automotive and
enterprise systems.
Pricing and availability
The eFuse is available now in the TI store and through
the company’s authorized distribution network. The
TPS2660 comes in a 4.4-mm-by-5-mm thin shrink small
outline package (TSSOP) and is priced at US$2.20 in
1,000-unit quantities.
SMD resistors from TT Electronics
withstand high surge conditions New smaller
footprint size saves space on PCBs and
assemblies
– TT Electronics, a global provider of engineered
electronics for performance critical applications, today
launched two new ranges of SMD thick film chip resistors
designed to optimise performance under pulse and
surge conditions. With a value range of 1R0 to 1M0, the
resistors provide surge protection in compact circuits
where a small footprint size is critical to the design.
TT Electronics’ PWC0603 and DSC0603 series are
designed specifically to provide reliable operation
under pulsed load conditions. For both the PWC and
DSC ranges the 0603 size is a new smaller version
that is being added to both series. DSC resistors are
double sided while the PWC are single, otherwise most
parameters and features are common to both ranges.
Aimed at designers of power supplies, circuit breakers,
remote sensor interfaces, defibrillators, and indeed any
circuit types where pulses or surges are possible, the
resistors are particularly suited to applications in the
industrial, medical and instrumentation sectors. They
provide enhanced product reliability by protecting circuits
against occasional surges that may be generated by
load switching or lightning strikes close to power lines.
For a 100-microsecond pulse, PWC0603 will take 10W,
and the double sided DSC version withstands 20W
peak power, while for both types the surge withstanding
is 1.2/50 microseconds up to 500V. These figures result
in enhanced reliability and reduced field failures. In fact,
TT Electronics’ PWC0603 and DSC0603 offer a surge
withstand performance exceeding that of competing
parts. Further enhancing reliability, the resistors feature
optional anti-sulphur terminations.
In developing and manufacturing the resistors, TT
Electronics uses proprietary laser trimming techniques
that help to spread the generated heat evenly over the
surface of the component. In the case of the double
sided DSC0603, the addition of a second resistor film
on the underside ensures that heat is spread evenly on
both sides of the component.
Factors driving the demand for this type of product
include the increased sensitivity of modern electrical
systems to damage from high-energy surges, and
the demand for more compact components to allow
miniaturisation of host equipments.
PWC0603 and DSC0603 series resistors are available
from the following distributors: Mouser, Newark, and
Farnell. For other franchised distributors, please see the
‘Sales’ tab at
For sales or technical information, contact stephen.
or visit
resistors.
For further information about TT Electronics visit www.
.
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