Type TK Low TC Precision Radial-Lead Film Resistors
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Low TC of 5 ppm/°C, 10 ppm/°C, or 20 ppm/°C and Resistance Range from 1 Kohm to 10 Megs
Type TK Low TC Precision Radial-Lead Resistors with
®
the Tetrinox resistance system solve the reliability problems
related to other low TC precision resistor technologies. The
robust construction of Caddock's Type TK Resistors provides
reliable operation even in harsh temperature cycling and/or
power cycling environments.
Type TK Low TC Precision Radial-Lead Film Resistors
provide a combination of performance advantages never
before available in a resistive component:
• Low Temperature Coefficient - better than 5 ppm/°C,
10 ppm/°C, or 20 ppm/°C over the entire temperature range
from -55°C to +125°C!
• Long-Term Absolute Stability - typically better than
±0.05% per 2,000 hours of operation.
• Extended Resistance Range -
from 1 K ohm to 10 Megohm.
• Precision Tolerances - ±0.1% is
standard, and tolerances of ±1%
and ±0.05% are available.
• Wide Operating Temperature
Building on over 30 years of experience with our unique
complex oxide technology, Caddock has perfected the
Tetrinox® resistance system - the first high resistance system
to provide a TC that is well within 10 ppm/°C and that is also
essentially linear over the entire temperature range from
-55°C to +125°C.
Range - from -55°C to +175°C.
• Small Size - with four miniature
rectangular cases for maximum
packaging density and minimum
mounting area.
• High Power Density - with power
ratings of 0.2 Watt and 0.3 Watt in
molded cases, the largest of
The exceptional performance of Type TK resistors can
achieve improvements in many circuit applications:
(Photos show
resistors full size)
which is a standard CK06 package.
Low TC "Matched-Pair" Voltage Dividers can be
Assembled Without Pre-Selection of Resistors.
• Caddock's Non-Inductive Performance - provides faster
settling times and minimum distortion in all types of high
frequency circuits.
An important application for Type TK resistors is in
"matched-pair" voltage dividers where the low 5 ppm/°C
temperature coefficient provides ratio tracking of less than
10 ppm/°C without resistor pre-selection or special testing.
• High Density Packaging - the radial-lead mounting and
small rectangular case of the Type TK resistors permit high
packaging densities in low profile circuitry. Because the
four models of the Type TK resistors are available in an
exceptionally wide range of resistance values, lead spacing
and mounting space can
With factory selection, Type TK resistor pairs can be
matched to within 1 ppm/°C.
be standardized in
a larger number
of designs.
Extended Resistance Range Reduces Power Requirements
Because the Type TK resistors provide resistance values
as high as 10 Megohms - values that are up to 100 times
higher than other types of ultra-low TC resistors - engineers
can now design precision circuits with lower current drain
and lower power requirements.
Ordering Information:
TK633 - 10.0 Meg - 0.1% - 10 ppm/°C
Model Number
Tolerance
Temperature
Resistor Value
Coefficient
Applications Engineering
Sales and Corporate Office
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Fax: (541) 496-0408
1717 Chicago Avenue
Riverside, California 92507-2364
Phone: (951) 788-1700
e-mail: caddock@caddock.com • web: www.caddock.com
For Caddock Distributors listed by country see caddock.com/contact/dist.html
Fax: (951) 369-1151
© 2004 Caddock Electronics, Inc.
28_IL115.1004
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