RB / RBR, HR / 4000, PC Series
Radial Lead Precision
Wirewound Resistors
•
•
•
•
•
•
0.1 to 0.6
watts
Tolerance
to ±.01%
0.1 ohm to 3 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
Miniature
printed
circuit resistors incorporate
an
uncommon
number
of production and design refinements to assure
excellent resistance stability, close resistance tolerances, low TCR capabilities and high structural strength.
To
assure their high quality standards, premium grade selected wire is
reverse
pi
wound
with miniumum stress on high
temperature epoxy bobbins, permeated with
a
resilient inner cushion coat, and isolated from the external protection
shell
by
a special dry air chamber.
To
promote additional resistance stability and accurate initial calibrations all resistors are subjected to
an
extensive
accelerated aging program.
Weldable
and/or solderable leads
(a
choice of lead material is
available)
are
firmly
anchored and bonded inside the bobbin for maximum structural strength. All resistor markings are impervious to
printed
circuit board cleaning solvents and lead spacing is sufficiently
well
controlled for automatic insertion on standard grid
boards.
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.
TCR and
Temperature
Data
Style
Resistance Range (Ω)
0.1 - 0.9
All
Styles
1.0 - 9.9
10 - 99.9
100 - 12M
Absolute TCR (ppm/°C)
±90
±30
±15
±10
-65 to +145
Operating Temperature Range (°C)
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, HR / 4000, PC Series Issue August 2011 Sheet 1 of 3
RB / RBR, HR / 4000, PC Series
Radial Lead Precision
Wirewound Resistors
Electrical Specifications
IRC /
Shallcross Style
HR-8
4060 / PC8
4065
4061
HR 340
HR 341
MIL-R-93 /
MIL-R-39005 Style
RBR 71
RB 71
RB 70
---
RBR 81*
RBR 80**
Wattage
MIL
125°C
0.125
0.125
0.25
---
0.100
0.100
0.25
0.33
0.25
Comm.
85°C
Min.
0.1
0.1
0.1
---
10
10
Resistance (ohms)
MIL
Max.
150 K
100 K
301 K
---
250 K
120 K
500 K
1.5 M
800 K
Comm.
Max.
Maximum
Working Voltage
300
300
150
300
300
150
* Discontinued by DSCC, replaced with 09008
** Approved to M and P level only
Physical Dimensions
(inches and (mm))
:
IRC /
Shallcross Style
HR-8
4060 / PC8
4065
4061
HR 340*
HR 341*
MIL-R-93 /
MIL-R-39005 Style
RBR 71
RB 71
RB 70
---
RBR 81
RBR 80
A
Inches (mm)
± 0.032 (± 0.8)
0.312 (7.9)
0.312 (7.9)
0.500 (12.7)
0.375 (9.5)
0.500 (12.7)
0.325 (9.3)
B
Inches (mm)
± 0.025 (± 0.6)
0.250 (6.3)
0.250 (6.3)
0.375 (9.5)
0.250 (6.3)
0.160 (4.0)
0.160 (4.0)
C
Inches (mm)
Minimum
1.0 (25.4)
1.0 (25.4)
1.0 (25.4)
1.0 (25.4)
1.0 (25.4)
1.0 (25.4)
D
Inches (mm)
± 0.002 (± 0.05)
0.025 (0.6)
0.025 (0.6)
0.032 (0.8)
0.025 (0.6)
0.020 (0.5)
0.020 (0.5)
E
Inches (mm)
± 0.010 (± 0.25)
0.200 (5.0)
0.200 (5.0)
0.200 (5.0)
0.200 (5.0)
0.406 (10.3)
0.225 (5.7)
Standard Lead Material - Tinned copper weld
Note:
Optional temperature coefficients available. Consult factory for details.
Figure 1. (Round)
B
Diameter
E
Grid Spacing
Figure 1. (Round)
C - Lead Length
A
Length
E
Grid Spacing
A
Length
C
Lead Length
D
Lead Diameter
B
Diameter
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
RB / RBR, HR / 4000, PC Series Issue August 2011 Sheet 2 of 3
RB / RBR, HR / 4000, PC Series
Radial Lead Precision
Wirewound Resistors
Ordering Data
RBR Product Description
Sample Part No.
Style
Terminal
RBR71
L
12601
B
R
L = Solderability, U =
Weldable
Resistance
Example: 12,600 ohms = 12601
Tolerance
T = 0.01%, Q = 0.02%, A = 0.05%, B = 0.1%, C = 0.25%, D = 0.5%
Failure Rate
RB Product Description
Sample Part No.
Style
Terminal
RB70
C
E
12601
B
C = Solderable, W = Weldable
TCR Code
E = Standard
Resistance
Example: 12,600 ohms = 12601
Tolerance
T = 0.01%, Q = 0.02%, A = 0.05%, B = 0.1%, C = 0.25%, D = 0.5%
Commercial Product Description
(HR / 4000, PC)
Sample Part No.
Style
TCR (ppm)
HR340
2
24000
1
LF
Omit if Standard
Resistance
2.4 kohm (2400 ohm)
Tolerance
T = 0.01%, Q = 0.02%, A = 0.05%, B = 0.1%, C = 0.25%, D = 0.5%
RoHS Indictator
LF = Indicates RoHS compliance
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
RB / RBR, HR / 4000, PC Series Issue August 2011 Sheet 3 of 3
Making friends through disassembly
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