Electronic Products & Technology

Thin-film chip resistors


Electronics CEL

Vishay Intertechnology, Inc .introduced a new series of SMD wraparound thin-film chip resistors optimized for use in multichip modules for down-hole drilling and aerospace applications.

Vishay Sfernice PHT high-precision wraparound chip resistors feature an
operating temperature range from – 55 to + 215 deg. C, with a maximum
storage temperature up to + 230 deg. C, an industry-first for any
resistor built on thin film technology.

Even with this high
temperature rating, the devices feature a load life stability of 0.5 %
after 1000 hours at 215 deg. C, as well as tight TCR and tolerance
values. Typical TCR for the new resistors is 25 ppm/deg. C, with
available tolerances down to 0.05 %.

PHT resistors, which have a 0.5-mm height profile, are available in
0603, 0805, 1206, and 2010 case sizes, with an ohmic range of 10 ohms to
7.6 megohms, depending on series. Their power ratings range from 12.5
mW to 100 mW.

PHT devices feature an SMD wraparound construction with gold
terminations. An enlarged termination option is available for
applications with extraordinary power dissipation requirements.


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