RS-2M78.7OHM1.0% [VISHAY]
RESISTOR, WIRE WOUND, 3 W, 1 %, 20 ppm, 78.7 ohm, THROUGH HOLE MOUNT, AXIAL LEADED;型号: | RS-2M78.7OHM1.0% |
厂家: | VISHAY |
描述: | RESISTOR, WIRE WOUND, 3 W, 1 %, 20 ppm, 78.7 ohm, THROUGH HOLE MOUNT, AXIAL LEADED 电阻器 |
文件: | 总2页 (文件大小:160K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING***
RESISTANCE RANGE
MODEL
MIL-PRF-26
WEIGHT
(Typical)
P25°C
W
MIL. RANGE SHOWN IN BOLD FACE
Ω
U
V
± 0.05% thru ± 3% thru
± 0.5%, ± 1%
± 3%, ± 5%
± 10%
0.1 - 950
0.1 - 3.4k
0.1 - 4.9k
0.1 - 10.4k
TYPE
± 5%
± 10%
± 0.05%
± 0.1%
± 0.25%
g
RS-1/8
RS-1/4
RS-1/2
RS-1A
—
—
—
—
.125
.4
.75
1.0
—
—
—
—
—
1 - 1k
1 - 1.3k
1 - 2.74k
—
—
0.15
0.21
0.23
0.34
0.499 - 1k
0.499 - 1.3k
0.499 - 2.74k 0.499 - 10.4k
0.499 - 2.74k 0.499 - 10.4k
0.499 - 3.4k
0.499 - 4.9k
RS-1A-300
1.0
—
0.1 - 10.4k
—
0.34
RW70**
1.0
—
0.1 - 2.74k
RS-1M
RS-2
RS-2M
RS-2B
—
—
—
—
1.0
4.0
3.0
3.0
—
5.5
—
1 - 1.32k
0.499 - 1.67k 0.499 - 6.85k
0.1 - 6.85k
0.1 - 47.1k
0.1 - 18.74k
0.1 - 24.5k
0.30
2.10
0.65
0.70
0.499 - 12.7k
0.499 - 4.49k
0.499 - 6.5k
0.499 - 12.7k
0.499 - 4.49k
0.499 - 6.5k
0.499 - 6.5k
0.1 - 47.1k
0.1 - 18.74k
0.1 - 24.5k
0.1 - 24.5k
3.75
RS-2B-300
3.0
—
0.1 - 24.5k
—
0.70
RW79**
—
—
3.0
—
0.1 - 6.49k
RS-2C
RS-2C-17
RS-2C-23
2.5
2.5
3.25
3.25
0.499 - 8.6k
0.499 - 6.8k
0.499 - 8.6k
0.499 - 8.6k
0.1 - 32.3k
0.1 - 32.3k
0.1 - 32.3k
0.1 - 32.3k
1.6
1.6
—
3.25
0.1 - 32.3k
—
—
—
1.6
4.2
RW69*
—
—
3.0
0.1 - 2.0k
RS-5
RS-5-69
5.0
6.5
0.499 - 25.7k
—
0.499 - 25.7k
0.499 - 25.7k
0.1 - 95.2k
0.1 - 95.2k
0.1 - 95.2k
5.0
—
0.1 - 95.2k
4.2
RW74**
5.0
—
0.1 - 24.3k
RS-5-70
—
6.5
0.1 - 95.2k
—
—
—
4.2
RW67*
—
—
—
6.5
0.1 - 8.2k
RS-7
RS-10
RS-10-38
7.0
10.0
9.0
13.0
0.499 - 41.4k
0.499 - 73.4k
0.499 - 41.4k
0.499 - 73.4k
0.499 - 73.4k
0.1 - 154k
0.1 - 273k
0.1 - 273k
0.1 - 154k
0.1 - 273k
4.7
9.0
10.0
—
0.1 - 273k
—
—
9.0
9.0
RW78**
10.0
–
0.1 - 71.5k
RS-10-39
—
—
13.0
11.0
0.1 - 273k
0.1 - 20k
—
—
RW68*
* Standard tolerance for these Mil parts is ± 5% 1Ω and above, ± 10% below 1Ω.
**Standard tolerance for these Mil parts is ± 0.5% & ± 1% for resistance values 0.1Ω and above, ± 0.1% for resistance values 0.499Ω and above.
***Vishay Dale RS models have two power ratings depending on operation temperature and stability requirements.
NOTE: Shaded area indicates most popular models.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RS RESISTOR CHARACTERISTICS
Temperature Coefficient
Dielectric Withstanding Voltage VAC
ppm/°C
± 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
Short Time Overload
–
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
Maximum Working Voltage
Insulation Resistance
Terminal Strength
V
Ω
lb
–
(P x R)1/2
1000 Megohm minimum dry, 100 Megohm minimum after moisture test
5 minimum for RS-1/8 thru RS-1A, 10 minimum for all others
Solderability
MIL-PRF-26 type - Meets requirements of ANSI J-STD-002
Non Mil type - Terminals are 60/40 electro tin plated to facilitate soldering
Operating Temperature Range
Power Rating
°C
–
Characterisitic U = - 65/+ 250, Characteristic V = - 65/+ 350
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
MODEL
10Ω
RESISTANCE
Ω
1.0%
TOLERANCE
± %
www.vishay.com
116
For technical questions, contact ww2bresistors@vishay.com
Document Number 30204
Revision 10-Jun-02
RS, NS
Wirewound Resistors, Military, MIL-PRF-26 Qualified,
Type RW, Precision Power, Silicone Coated
Vishay Dale
DIMENSIONS
1.50
[38.10]*
Min.
MODEL
DIMENSIONS in inches [millimeters]
A
A
B
C
D
(Max.)**
RS-1/8
RS-1/4
RS-1/2
RS-1A
0.155 ± 0.015
[3.94 ± 0.381]
—
0.065 ± 0.015
[1.65 ± 0.381]
0.020 ± 0.002
[0.508 ± 0.051]
0.250 ± 0.031 0.281
[6.35 ± 0.787] [7.14]
0.085 ± 0.020
[2.16 ± 0.508]
0.020 ± 0.002
[0.508 ± 0.051]
D
B
C
*On some standard reel pack methods, the leads may be trimmed to
a shorter length than shown.
NOTE: RS-1/8 terminal length will be 1.0" [25.4mm] minimum.
0.312 ± 0.016 0.328 0.078 + 0.016 - 0.031 0.020 ± 0.002
[7.92 ± 0.406] [8.33] [1.98 + 0.406 - 0.787] [0.508 ± 0.051]
0.406 ± 0.031 0.437
RS-1A-300 [10.31 ± 0.787] [11.10]
0.094 ± 0.031
[2.39 ± 0.787]
0.020 ± 0.002
[0.508 ± 0.051]
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic, steatite or alumina, depending on physical
size
RS-1M
RS-2
0.285 ± 0.025 0.311
[7.24 ± 0.635] [7.90]
0.110 ± 0.015
[2.79 ± 0.381]
0.020 ± 0.002
[0.508 ± 0.051]
0.625 ± 0.062 0.765
[15.88 ± 1.57] [19.43]
0.250 ± 0.031
[6.35 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
Coating: Special high temperature silicone
Standard Terminals: Tinned Copperweld®
End Caps: Stainless steel
RS-2M
RS-2B
0.500 ± 0.062 0.562
[12.70 ± 1.57] [14.27]
0.185 ± 0.015
[4.70 ± 0.381]
0.032 ± 0.002
[0.813 ± 0.051]
Deviations for RS-1/8: Thermoset silicone molded
construction, endcaps will be nickel-silver alloy and terminals
will be tinned copper
0.560 ± 0.062 0.622
0.187 ± 0.031
[4.75 ± 0.787]
0.032 ± 0.002
[0.813 ± 0.051]
RS-2B-300 [14.22 ± 1.57] [15.80]
Part Marking: DALE, Model, Wattage*, Value, Tolerance,
Date Code
RS-2C
0.500 ± 0.062 0.593
[12.70 ± 1.57] [15.06]
0.218 ± 0.031
[5.54 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
*Wattage marked on part will be "U" characteristic
NS NON-INDUCTIVE
RS-2C-17 0.500 ± 0.062 0.593
[12.70 ± 1.57] [15.06]
0.218 ± 0.031
[5.54 ± 0.787]
0.032 ± 0.002
[0.813 ± 0.051]
Models of equivalent physical and electrical specifications are
available with non-inductive (Aryton-Perry) winding. They are
identified by substituting the letter N for R in the model
number (NS-5, for example). Two conditions apply:
RS-2C-23 0.500 ± 0.062 0.593
[12.70 ± 1.57] [15.06]
0.218 ± 0.031
[5.54 ± 0.787]
0.032 ± 0.002
[0.813 ± 0.051]
1. For NS models, divide maximum resistance values by two
2. Body O.D. on NS-2C may exceed that of the RS-2C by 010"
RS-5
0.875 ± 0.062
1.0
0.312 ± 0.031
[7.92 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
[22.23 ± 1.57] [25.4]
120
RS-5-69
RS-5-70
RS-7
0.875 ± 0.062 0.937
[22.23 ± 1.57] [23.80]
0.312 ± 0.031
[7.92 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
100
0.875 ± 0.062
1.0
0.312 ± 0.031
[7.92 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
[22.23 ± 1.57] [25.4]
80
1.22 ± 0.062
1.28
0.312 ± 0.031
[7.92 ± 7.87]
0.040 ± 0.002
[1.02 ± 0.051]
[30.99 ± 1.57] [32.51]
60
CHAR. V
RS-10
1.78 ± 0.062 1.87
0.375 ± 0.031
[9.53 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
40
[45.21 ± 1.57] [47.50]
1.78 ± 0.062 1.84
RS-10-38
RS-10-39
0.375 ± 0.031
[9.53 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
20
[45.21 ± 1.57] [46.74]
CHAR. U
1.78 ± 0.062 1.87
[45.21 ± 1.57] [47.50]
0.375 ± 0.031
[9.53 ± 0.787]
0.040 ± 0.002
[1.02 ± 0.051]
0
-65 -50
0
50
150
250
350
25
AMBIENT TEMPERATURE IN °C
Derating
**B (Max.) dimension is clean lead to clean lead.
PERFORMANCE*
TEST
CONDITIONS OF TEST
TEST LIMITS
Characteristic U
Characteristic V
± (2.0% + 0.05Ω) ∆R
± (2.0% + 0.05Ω) ∆R
± (0.1% + 0.05Ω) ∆R
± (2.0% + 0.05Ω) ∆R
± (2.0% + 0.05Ω) ∆R
± (2.0% + 0.05Ω) ∆R
± (0.2% + 0.05Ω) ∆R
± (0.2% + 0.05Ω) ∆R
± (3.0% + 0.05Ω) ∆R
Thermal Shock
Rated power applied until thermally stable, then a min. of 15 minutes at - 55°C
± (0.2% + 0.05Ω) ∆R
± (0.2% + 0.05Ω) ∆R
± (0.1% + 0.05Ω) ∆R
± (0.2% + 0.05Ω) ∆R
± (0.5% + 0.05Ω) ∆R
± (0.2% + 0.05Ω) ∆R
± (0.1% + 0.05Ω) ∆R
± (0.1% + 0.05Ω) ∆R
± (0.5% + 0.05Ω) ∆R
Short Time Overload
5 x rated power (3.75 watt and smaller), 10 x rated power (4 watt and larger) for 5 seconds
Dielectric Withstanding Voltage 500 minimum for RS-1/8 thru RS-1A, 1000 for all others, duration of 1 minute
Low Temperature Storage
High Temperature Exposure
Moisture Resistance
Shock, Specified Pulse
Vibration, High Frequency
Load Life
- 65°C for 24 hours
250 hours at: U = + 250°C, V = + 350°C
MIL-STD-202 Method 106, 7b not applicable
MIL-STD-202 Method 213, 100g's for 6 milliseconds, 10 shocks
Frequency varied 10 to 2000Hz, 20g peak, 2 directions 6 hours each
2000 hours at rated power, + 25°C, 1.5 hours “ON”, 0.5 hours “OFF”
5 to 10 sec., 5 or 10 lb pull test (depending on size),
torsion test - 3 alternating directions, 360° each
Terminal Strength
± (0.1% + 0.05Ω) ∆R
± (1.0% + 0.05Ω) ∆R
*All ∆R figures shown are maximum, based upon testing requirements per MIL-PRF-26.
Document Number 30204
Revision 10-Jun-02
For technical questions, contact ww2bresistors@vishay.com
www.vishay.com
117
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