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SP4220.370.1LF

Description
RES, AXIAL, WIREWOUND, 0.37ohm, 200WV, .1% +/-TOL, -2, 2PPM TC
CategoryPassive components    The resistor   
File Size559KB,4 Pages
ManufacturerTT Electronics plc
Websitehttp://www.ttelectronics.com/
Environmental Compliance
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SP4220.370.1LF Overview

RES, AXIAL, WIREWOUND, 0.37ohm, 200WV, .1% +/-TOL, -2, 2PPM TC

SP4220.370.1LF Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerTT Electronics plc
Reach Compliance Codecompliant
structureTubular
Lead diameter0.6 mm
Lead length38.1 mm
Manufacturer's serial numberSP(AXIAL)
Number of terminals2
Maximum operating temperature145 °C
Minimum operating temperature-65 °C
Package diameter3.2 mm
Package length9.5 mm
Package shapeTUBULAR PACKAGE
Package formAxial
Rated power dissipation(P)0.125 W
resistance0.37 Ω
Resistor typeFIXED RESISTOR
seriesSP(AXIAL)
technologyWIRE WOUND
Temperature Coefficient-2,2 ppm/°C
Tolerance0.1%
Operating Voltage200 V
Base Number Matches1
RB / RBR, VA / HR, SP / 7000 Series
Axial Lead Precision
Wirewound Resistors
0.1 to 1.0 watts
Tolerance to ±.01%
0.1 ohm to 12 meg ohms
Approved to M, P, & R levels
TCR’s from ±2 ppm/°C to +6000 ppm/°C
Meets or exceeds all applicable MIL-R-93 & MIL-R-39005 ratings
The RB/RBR ultra precision resistors are designed and produced for critical parameter applications. They are available
for established reliability military and/or commercial applications requiring state of the art precision and stability.
Construction features may vary slightly between commercial and military styles, but both are produced under the same
rigid quality control system required by the tightest military specifications. Both are produced in the same production
line using the same highly trained operators required to produce the established reliability product.
All terminations are welded to reduce contact noise and thermal EMF. Extensive accelerated aging programs both
before and after calibration assure precise initial accuracy and high resistance stability.
Encapsulation is accomplished by a unique dry air chamber epoxy shell technique for established reliability parts. A
resilient inner coating is used to minimize internal stresses on all parts.
All resistors (military and commercial) are carefully monitored during assembly, winding, coating, and stabilization
procedures to assure high quality standards. Premium grade selected wire is control- stress wound on special designed
bobbins. Established reliability military parts are then burned in for 100 hours at 125°C ambient as part MIL-R-93, or
equivalent, of group A acceptance testing. Documentation and special tests are available upon customer request to
meet your unique requirements.
TCR and Temperature Data
Style
All
Styles
Resistance Range (Ω)
0.1 - 0.9
1.0 - 9.9
10 - 99.9
100 - 12M
Absolute TCR (ppm/°C)
±90
±30
±15
±10
-65 to +145
Operating Temperature Range (°C)
Special Screening / Acceptance Test:
Special tests can be performed on a 100% or sample basis, to meet individual customer requirements. Some of the
available non-destructive tests include:
Short Time Overload
Thermal Shock
Mechanical Shock
Vibration
Temperature Coefficient of Resistance
Radiographic Inspection
Each of these tests is designed to detect a spectrum of potential resistor defects. Consult the factory for recommendations
and a quotation on special screening or acceptance tests to meet your needs.
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus
Christi Texas
78411 USA
Telephone:
361 992 7900 •
Facsimile:
361 992 3377 •
Website: www.irctt.com
A subsidiary of
TT electronics plc
RB/RBR, VA/HR,
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