Axial Lead Precision
Wirewound Resistors
RB / RBR, VA / HR, SP / 7000 Series
Axial
1.0 watts
·
0.1 to
Lead Precision
Wirewound Resistors
·
Tolerance to ±.01%
·
0.1 ohm to 12 megohms
·
0.1 to 1.0 watts
to M, P, & R levels
Approved
·
Tolerance
from ±2 ppm/°C to +6000 ppm/°C
TCR’s
to ±.01%
·
0.1 ohm to
or exceeds all applicable
Meets
12 meg ohms
Approved to M, P, & R levels
RB / RBR, VA / HR, SP / 7000 Series
TCR’s from ±2 ppm/°C to +6000 ppm/°C
MIL-R-93 & MIL-R-39005 ratings
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 ()
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
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
to make changes in product specification without notice or liability.
TT electronics reserves the right
and is considered accurate at time of going to print.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
Wire and Film Technologies Division
rpus Christi Te
Telephone:
© TT electronics plc
Facsimile:
Website: www.irctt.com
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
RB/RBR, V
r
A subsidiary of
TT electronics plc
09. 11
RB / RBR, VA
Axial Lead Precision
/ HR,
Wirewound Resistors
Axial Lead Precision
Electrical Data
SP / 7000 Series
Wirewound
SP / 7000 Series
RB / RBR, VA / HR,
Resistors
Wattage
Style
IRC
Style
Shallcross
Style
Mil
125°C
MIL-R-93
RB52
RB53
RB54
RB55
RB56
RBR52
MIL-R-39005
RBR53
RBR54
RBR55
RBR56
---
SUBMINIATURES
---
---
---
---
7040
7030
7020
7010
7009
HR36
HR34
HR14
HR12
HR10
7004
7005
7006
7007
---
VA36
VA34
VA14
VA12
VA10
---
---
---
---
---
---
SP41
---
SP21
SP42
0.50
0.33
0.25
0.15
0.125
0.50
0.33
0.25
0.15
0.125
---
---
---
---
---
Comm
85°C
1.00
0.66
0.50
0.33
0.250
1.00
0.66
0.50
0.30
0.250
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
---
---
---
---
---
Resistance (ohms)
Mil
Max
1M
604K
226K
176K
127K
1.2M
1.1M
526K
332K
220K
---
---
---
---
---
Comm
Max
12M
8M
4.4M
3M
1.4M
3M
3M
2M
1M
840K
250K
300K
350K
700K
200K
Max.
Working
Voltage
(Comm.)
750
500
300
300
200
750
500
300
300
200
150
150
200
300
200
*For all styles, commercial ratings may be applied at 125°C provided 175°C max. Operating temperature is permissible.
NOTE: Contact factory for availablility of other styles and sizes of above product.
**Customer must specify TCR required.
Wire and Film Technologies Division
T
:
F
:
W
:
T
V
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
09. 11
RB / RBR, VA
Axial Lead Precision
/ HR,
Wirewound Resistors
Axial Lead Precision
RB / RBR, VA / HR, SP / 7000 Series
SP / 7000 Series
Wirewound Resistors
Ordering Data
RBR Product Description
Sample Part No.
Style
Terminal
RBR52
L
12601
B
R
y
W
Resistance
:
Tolerance
Failure Rate
RB Product Description
Sample Part No.
Style
Terminal
RB52
C
E
12601
B
C = Solderable, W = Weldable
TCR Code
E = Standard
Resistance
:
Tolerance
Commercial Product Description
(VA / HR, SP / 7000)
Sample Part No.
Style
TCR (ppm)
VA10
2
24000
1
LF
Omit if Standard
Resistance
2.4 kohm (2400 ohm)
Tolerance
RoHS Indictator
Wire and Film Technologies Division
T
:
F
:
W
:
T
V
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
09. 11
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