1
ISO-9001
Registered
T emperature Range
-65°C to +145°C
AXIAL LEAD PRECISION
WIREWOUND RESISTORS
HR, V A, SP,
7000, 8000 SERIES
MIL-R-93 (RB) & MIL-R-39005 (RBR)
& COMMERCIAL STYLES
• •
• •
•
0.1 ohm to 12 meg ohms
••
••
•
0.1 to 1.0 watts
• •
• •
•
Tolerance to ±.01%
• •
• •
•
Approved to M, P, & R levels
• •
• •
•
TC's from ±2 ppm/°C to +6000 ppm/°C
• •
• •
•
Meets or exceeds all applicable MIL-R-93 & MIL -R-39005 ratings
Non-stress encapsulation
Automated, precision
windings, protected by
silastic undercoat
Welded terminations
These 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.
Whether military or commercial, all resistors are
carefully monitored during assembly, winding,
coating,
and stabilization procedures to assure
high quality
standards even when their prescribed parameters are
non critical. Premium grade selected wire is control
stress wound on special designed bobbins. All
terminations are welded to reduce contact noise and
thermal EMF. Extensiv e accelerated aging programs
both before and after calibration assure precise initial
accuracy and high resistance stability.
Encapsulation is accomplished by transfer molding
with special moisture resistant epoxy or
by unique
dry air chamber epoxy shell technique
for established
reliability parts. A resilient inner coating is used to
minimize internal stresses on all parts.
The established reliability military parts are burned in
100 hours at 125°C ambient as part of group A
acceptance testing. Documentation and special
test
are available upon customer request to meet your
unique requirements.
MIL-R-39005 SPECIFICA TIONS: Standard Temperature Coefficient
±10 ppm/°C 100Ω up
±15 ppm/°C 10Ω to 100Ω
±30 ppm/°C 1Ω to 10Ω
±90 ppm/°C below 1Ω
Special Temperature Coefficients A vailab le
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road • Boone, Nor th Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
2
ISO-9001
Registered
MIL
125°C
0.125
0.125
0.15
0.15
0.25
0.25
0.33
0.33
0.50
0.50
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HR, VA, SP, 7000, 8000 SERIES SPECIFICATIONS:
IRC/
Shallcross
Style
7009/VA10
HR10
7010/VA12
HR12
7020/VA14
HR14
7030/VA34
HR34
7040/VA36
HR36
7004
7005/SP41
7006
7007/SP21
SP42
MIL-R-93
/ 39005
Style
RB56
RBR56
RB55
RBR55
RB54
RBR54
RB53
RBR53
RB52
RBR52
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Comm
85°C
0.250
0.250
0.33
0.30
0.50
0.50
0.66
0.66
1.00
1.00
0.05
0.10
0.10
0.250
0.125
Min
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
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Max
127K
220K
176K
332K
226K
526K
604K
1.1M
1M
1.2M
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Comm
Max
1.4M
840K
3M
1M
4.4M
2M
8M
3M
12M
3M
250K
300K
350K
700K
200K
Max.
W orking Volt
(Comm)
200
200
300
300
300
300
500
500
750
750
150
150
200
300
200
±0.032A
Inches (mm)
0.343 (8.7)
0.343 (8.7)
0.500 (12.7)
0.500 (12.7)
0.750 (19.0)
0.750 (19.0)
0.750 (19.0)
0.750 (19.0)
1.00 (25.4)
1.00 (25.4)
0.30(7.6)
0.25 (6.3)
0.31 (7.9)
0.375 (9.5)
0.375 (9.5)
±0.015B
Inches (mm)
0.250 (6.3)
0.250 (6.3)
0.250 (6.3)
0.250 (6.3)
0.250 (6.3)
0.250 (6.3)
0.375 (9.5)
0.375 (9.5)
0.375 (9.5)
0.375 (9.5)
0.10 (2.5)
0.125 (3.2)
0.125 (3.2)
0.188 (4.8)
0.125 (3.2)
±0.002C
Inches (mm)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.020 (0.5)
0.025 (0.6)
0.025 (0.6)
0.025 (0.6)
0.025 (0.6)
Mil DimensionsResistance (ohms)Wattage
*For all styles commercial ratings may be applied at 125°C provided 175°C max. operating temperature is permissible. **Customer must specify TCR required.
NOTE: Contact factory for availability of other styles and sizes of above product.
B Dia.
CA
Length
1.5 Min.
Lead Length
HOW TO ORDER
Sample Par t No.:
RBR52 L 12601 B R
Style
Terminal
L = Solderability, U = Weldable
Resistance
Tolerance
Failure Rate
For commercial equivalents:
Style - Resistance - Tolerance - TCR
SUBMINIATURES
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road • Boone, Nor th Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
