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.
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 minimum stress on high temperature
epoxy bobbins, permeated with a resilient inner
cushion coat, and isolated from the external
protective shell by a special dry air chamber.
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 test include:
-Short Time Overload
-Thermal Shock
-Temperature Coefficient of Resistance
-Radiographic Inspection
Each of these tests is designed to detect a spectrum of potential resistor defects. Consult the factory for
recomendations and a quotation on special screening or acceptance tests to meet your needs.
ELECTRICAL SPECIFICATIONS:
IRC/Shallcross
Style**
HR-8
4060/PC8
4065
4061
4067
HR 340
HR 341
MIL-R-93/
MIL-R-39005
Style
RBR71
RB71
RB70
---
---
RBR81
RBR80
Wattage
MIL
125°C
0.125
0.125
0.250
---
---
0.100
0.100
Comm*
85°C
0.250
0.333
0.250
0.400
Resistance (ohms)
MIL
Comm*
Max
Max
150K
500K
100K
301K
---
---
250K
120K
1.5M
800K
3M
Maximum
Working
Voltage
300
300
150
300
300
300
150
*Commercial ratings may be applied at 125°C provided 175°C max. operation temperature is permissible. **Available as High Reliability styles with complete documentation.
PCB设计
