RS, NS
Vishay Dale
Wirewound Resistors, Military, MIL-PRF-26 Qualified,
Type RW, Precision Power, Silicone Coated
FEATURES
• High temperature coating
• Complete welded construction
• Meets applicable requirements of MIL-PRF-26
• Available in non-inductive styles (type NS) with
Aryton-Perry winding for lowest reactive components
• Excellent stability in operation
S TANDARD ELECTRICAL S P ECIFICATIONS
POWER RATING**
RESISTANCE RANGE
MODEL
MIL-PRF-26
WEIGHT
(Typical)
P25°C
W
MIL. RANGE SHOWN IN BOLD FACE
Ω
U
± 0.05% thru
± 0.5%
.125
.4
V
± .5%, ± 1%
± 3%, ± 5%
0.1 - 950
0.1 - 3.4k
0.1 - 4.9k
TYPE
—
—
—
—
RW70
—
—
—
—
RW79
—
—
RW69
—
RW74
RW67
—
± 3% & ± 5%
± .05%
—
1 - 1k
± 0.1%
—
0.499 - 1k
0.499 - 1.3k
± .25%
—
0.499 - 3.4k
0.499 - 4.9k
g
RS-1/8
RS-1/4
RS-1/2
RS-1A
RS-1A-300
RS-1M
RS-2
RS-2M
RS-2B
RS-2B-300
RS-2C
RS-2C-17
RS-2C-23*
RS-5
RS-5-69
RS-5-70*
RS-7
—
—
—
—
—
—
5.5
—
3.75
—
3.25
3.25
3.0
6.5
—
6.5
9.0
13.0
—
0.15
0.21
0.23
0.34
0.34
0.30
2.10
0.65
0.70
0.70
1.6
1.6
1.6
4.2
4.2
4.2
4.7
9.0
9.0
.75
1.0
1.0
1.0
4.0
3.0
3.0
3.0
2.5
2.5
—
5.0
5.0
—
7.0
1 - 1.3k
1 - 2.74k
—
1 - 1.32k
0.499 - 12.7k
0.499 - 4.49k
0.499 - 6.5k
—
0.499 - 8.6k
0.499 - 6.8k
—
0.499 - 25.7k
—
0.499 - 2.74k 0.499 - 10.4k
0.499 - 2.74k 0.499 - 2.74k
0.499 - 1.67k 0.499 - 6.85k
0.499 - 12.7k
0.499 - 4.49k
0.499 - 6.5k
0.499 - 6.49k
0.499 - 8.6k
0.499 - 8.6k
—
0.499 - 25.7k
0.499 - 24.3k
—
0.499 - 41.4k
0.499 - 73.4k
0.499 - 71.5k
—
0.1 - 10.4k
0.1 - 2.74k
0.1 - 6.85k
0.1 - 47.1k
0.1 - 18.74k
0.1 - 24.5k
0.1 - 6.49k
0.1 - 32.3k
0.1 - 32.3k
0.1 - 2.0k
0.1 - 95.2k
0.1 - 24.3k
0.1 - 8.2k
0.1 - 154k
0.1 - 273k
0.1 - 71.5k
0.1 - 20k
0.1 - 47.1k
0.1 - 18.74k
0.1 - 24.5k
0.1 - 6.49k
0.1 - 32.3k
0.1 - 32.3k
—
0.1 - 95.2k
0.1 - 24.3k
—
—
0.499 - 41.4k
0.499 - 73.4k
—
0.1 - 154k
0.1 - 273k
0.1 - 71.5k
—
RS-10
RS-10-38
RS-10-39*
—
RW78
RW68
10.0
10.0
—
11.0
—
9.0
*Standard tolerance is ± 5% 1 ohm and above, ± 10% below 1 ohm.
**Vishay Dale RS models have two power ratings depending on operation temperature and stability requirements.
NOTE: Shaded area indicates most popular models.
TECHNICAL S P ECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage VAC
Short Time Overload
UNIT
ppm/°C
RS RESISTOR CHARACTERISTICS
± 90 for below 1Ω, ± 50 for 1Ω to 9.9Ω, ± 20 for 10Ω and above
500 minimum for RS-1/8 thru RS-1A, 1000 minimum for all others
5 x rated power for 5 seconds for 3.75 watt size and smaller,
10 x rated power for 5 seconds for 4 watt size and greater
(P x R)1/2
–
Maximum Working Voltage
Insulation Resistance
Terminal Strength
V
Ω
lb
–
1000 Megohm minimum dry, 100 Megohm minimum after moisture test
5 minimum for RS-1/8 thru RS-1A, 10 minimum for all others
MIL-PRF-26 type - Meets requirements of ANSI J-STD-002
Non Mil type - Terminals are 60/40 electro tin plated to facilitate soldering
Characterisitic U = - 65/+ 250, Characteristic V = - 65/+ 350
Solderability
Operating Temperature Range
Power Rating
°C
–
Characteristic U - + 250°C max. hot spot temperature, ± 0.5% max. ∆R in 2000 hr. load life
Characteristic V - + 350°C max. hot spot temperature, ± 3.0% max. ∆R in 2000 hr. load life
ORDERING INFORMATION
RS-1A
10Ω
RESISTANCE
Ω
1.0%
TOLERANCE
± %
MODEL
www.vishay.com
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For technical questions, contact ww2bresistors@vishay.com
Document Number 30204
Revision 18-Oct-00
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