VISHAY RH100

RH, NH
Vishay Dale
Wirewound Resistors, Military, MIL-PRF-18546 Qualified,
Type RE, Aluminum Housed, Chassis Mount
FEATURES
• Molded construction for total environmental
protection
• Complete welded construction
• Meets applicable requirements of
MIL-PRF-18546
• Available in non-inductive styles (type NH)
with Aryton-Perry winding for lowest reactive
components
• Mounts on chassis to utilize heat-sink effect
• Excellent stability in operation (< 1 % change
in resistance)
Pb-free
Available
e4
RoHS*
COMPLIANT
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING
P25 °C
W
GLOBAL HISTORICAL MIL-PRF18546
MODEL
MODEL
TYPE
RESISTANCE RANGE
MIL. RANGE SHOWN IN BOLD FACE
Ω
DALE
RH005
RH-5
NH005
NH-5
RH010
RH-10
NH010
NH-10
RH025
RH-25
NH025
NH-25
RH050
RH-50
NH050
NH-50
RH100
RH-100
NH100
NH-100
RH250
RH-250
NH250
NH-250
MILITARY ± 0.05 %, ± 0.1 %
0.5 - 6.75K
7.5 (5)
5
0.5 - 2.32K
7.5 (5)
5
0.5
12.7K
12.5 (10)
10
0.5 - 4.45K
12.5 (10)
10
0.5
25.7K
25
20
0.5 - 9.09K
25
20
0.5 - 73.4K
50
30
0.5 - 26K
50
30
0.5 - 90K
100
75
0.5 - 37.5K
100
75
0.5 - 116K
250
120
0.5
48.5K
250
120
-
RE60G
RE60N
RE65G
RE65N
RE70G
RE70N
RE75G
RE75N
RE77G
RE77N
RE80G
RE80N
WEIGHT
(typical)
g
± 0.25 %
± 0.5 %
± 1 %, ± 2 %, ± 5 %
0.1 - 8.6K
0.05 - 8.6K
0.02 - 24.5K
0.10 - 3.32K
0.1 - 3.27K 0.05 - 3.27K
0.05 - 12.75K
1.0 - 1.65K
0.1 - 16.69K 0.05 - 16.69K
0.01 - 47.1K
0.10 - 5.62K
0.1 - 5.54K 0.05 - 5.54K
0.05 - 23.5K
1.0 - 2.8K
0.1 - 32.99K 0.05 - 32.99K
0.01 - 95.2K
0.10 - 12.1K
0.1 - 12.8K 0.05 - 12.8K
0.05 - 47.6K
1.0 - 6.04K
0.1 - 96K
0.05 - 96K
0.01 - 273K
0 .10 - 39.2K
0.1 - 36.7K 0.05 - 36.7K
0.05 - 136K
1.0 - 19.6K
0.1 - 90K
0.05 - 90K
0.05 - 90K
0.05 - 29.4K
0.1 - 37.5K 0.05 - 37.5K
0.05 - 37.5K
1.0 - 14.7K
0.1 - 116K
0.05 - 116K
0.05 - 116K
0.10 - 35.7K
0.1 - 48.5K 0.05 - 48.5K
0.05 - 48.5K
1.0 - 17.4K
3
3.3
6
8.8
13
16.5
28
35
350
385
630
690
Note
• Figures in parentheses on RH-5 and RH-10 indicate wattage printed on parts, new construction allows these resistors to be rated at higher
wattage but will only be printed with the higher wattage on customer request
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: RH0054R125FC02 (preferred part number format)
R
H
0
0
5
4
R
GLOBAL MODEL
RESISTANCE
VALUE
TOLERANCE
CODE
RH005
(See “Standard
Electrical
Specifications”
table above for
additional P/N’s)
L = Milliohm
R = Decimal
K = Thousand
8L000 = 0.008 Ω
15R00 = 15 Ω
A = 0.05 %
B = 0.1 %
C = 0.25 %
D = 0.5 %
F = 1.0 %
1
2
5
F
C
0
2
PACKAGING
SPECIAL
E02 = Lead (Pb)-free, card pack (RH005 - RH050)
E01 = Lead (Pb)-free, skin pack (RH100 and RH250)
Lead (Pb)-free is not available on RE military type
(Dash Number)
(up to 3 digits)
From 1 - 999
as applicable
C02 = Tin/lead, card pack (RH005 - RH050)
J01 = Tin/lead, skin pack (RH100 and RH250)
Historical Part Number Example: RH-5 4.125 Ω 1 % C02 (will continue to be accepted)
RH-5
4.125 Ω
1%
C02
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
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For technical questions, contact: [email protected]
Document Number: 30201
Revision: 11-Jul-07
RH, NH
Wirewound Resistors, Military, MIL-PRF-18546 Qualified,
Type RE, Aluminum Housed, Chassis Mount
Vishay Dale
DIMENSIONS in inches [millimeters]
D
C
A
RH-5, -10, -25, -50
NH-5, -10, -25, -50
F
E
M
N
G
J
B
P
K
MODEL
H
L
DIMENSIONS in inches [millimeters]
A
B
C
D
E
F
G
H
J
K
L
M
N
P
RH-5
NH-5
0.444
0.490
0.600
1.125
0.334
0.646
0.320
0.065
0.133
0.078
0.093
0.078
0.050
0.266
± 0.005 ± 0.005 ± 0.030 ± 0.062 ± 0.015 ± 0.015 ± 0.015 ± 0.010 ± 0.010 ± 0.010 ± 0.005 ± 0.015 ± 0.005 ± 0.062
[2.36
[1.98
[1.27
[6.76
[11.28 [12.45 [15.24 [28.58
[8.48
[16.41
[8.13
[1.65
[3.38
[1.98
± 0.127] ± 0.127] ± 0.787] ± 1.57] ± 0.381] ± 0.381] ± 0.381] ± 0.254] ± 0.254] ± 0.254] ± 0.127] ± 0.381] ± 0.127] ± 1.57]
RH-10
NH-10
0.093
0.094
0.102
0.085
0.312
0.562
0.625
0.750
1.375
0.420
0.800
0.390
0.075
0.165
± 0.005 ± 0.005 ± 0.031 ± 0.062 ± 0.015 ± 0.015 ± 0.015 ± 0.010 ± 0.010 ± 0.010 ± 0.005 ± 0.015 ± 0.005 ± 0.062
[9.91
[1.91
[4.19
[2.36
[2.39
[2.59
[2.16
[7.92
[14.27 [15.88 [19.05 [34.93 [10.67 [20.32
± 0.127] ± 0.127] ± 0.787] ± 1.57] ± 0.381] ± 0.381] ± 0.381] ± 0.254] ± 0.254] ± 0.254] ± 0.127] ± 0.381] ± 0.127] ± 1.57]
RH-25
NH-25
0.172
0.125
0.115
0.085
0.438
0.719
0.781
1.062
1.938
0.550
1.080
0.546
0.075
0.231
± 0.005 ± 0.005 ± 0.031 ± 0.062 ± 0.015 ± 0.015 ± 0.015 ± 0.010 ± 0.010 ± 0.010 ± 0.005 ± 0.015 ± 0.005 ± 0.062
[18.26 [19.84 [26.97 [49.23 [13.97 [27.43 [13.87
[1.91
[5.87
[4.37
[3.18
[2.92
[2.16
[11.13
± 0.127] ± 0.127] ± 0.787] ± 1.57] ± 0.381] ± 0.381] ± 0.381] ± 0.254] ± 0.254] ± 0.254] ± 0.127] ± 0.381] ± 0.127] ± 1.57]
RH-50
NH-50
0.196
0.125
0.107
0.085
0.438
1.562
0.844
1.968
2.781
0.630
1.140
0.610
0.088
0.260
± 0.005 ± 0.005 ± 0.031 ± 0.062 ± 0.015 ± 0.015 ± 0.015 ± 0.010 ± 0.010 ± 0.010 ± 0.005 ± 0.015 ± 0.005 ± 0.062
[2.24
[6.60
[4.98
[3.18
[2.72
[2.16
[11.13
[39.67 [21.44 [49.99 [70.64 [16.00 [28.96 [15.49
± 0.127] ± 0.127] ± 0.787] ± 1.57] ± 0.381] ± 0.381] ± 0.381] ± 0.254] ± 0.254] ± 0.254] ± 0.127] ± 0.381] ± 0.127] ± 1.57]
DIMENSIONS in inches [millimeters]
RH-100, NH-100
Nickel plated
brass nut
stainless steel stud
3.50 ± 0.031
[88.90 ± 0.787]
0.188 ± 0.010
[4.78 ± 0.254]
Dia. typ.
1.812 ± 0.031
[46.02 ± 0.787]
1.125 ± 0.031
[28.58 ± 0.787]
2.812 ± 0.031
[71.42 ± 0.787]
1.75 ± 0.031
[44.45 ± 0.787]
2.25 ± 0.010
[57.15 ± 0.254]
0.375 ± 0.031
[9.52 ± 0.787]
12 - 24
UNC-2A
Thd. typ.
2.75 ± 0.010
[69.85 ± 0.254]
5.478 ± 0.093
[139.14 ± 2.36]
RH-250, NH-250
0.188 ± 0.010
[4.78 ± 0.254]
Dia. typ.
4.50 ± 0.031
[114.30 ± 0.787]
Nickel plated
brass nut
stainless steel stud
1/4 - 20
UNC-2A thd. typ.
2.125 ± 0.031
[53.98 ± 0.787]
1.25 ± 0.062
[31.75 ± 1.575]
3.0 ± 0.031
[76.20 ± 0.787]
0.312 ± 0.031
[7.92 ± 0.787]
0.188 ± 0.031 0.770 ± 0.015
[4.78 ± 0.787] [19.56 ± 0.381]
typ.
0.989 ± 0.031
[25.12 ± 0.787]
55.58 ± 0.787
[2.188 ± 0.031]
2.50 ± 0.010
[63.50 ± 0.254]
0.875 ± 0.010
[22.23 ± 0.254]
3.0 ± 0.010
[76.20 ± 0.254]
3.875 ± 0.010
[98.42 ± 0.254]
7.0 ± 0.093 [177.80 ± 2.36]
Document Number: 30201
Revision: 11-Jul-07
1.25 ± 0.062
[31.75 ± 1.575]
For technical questions, contact: [email protected]
0.250 ± 0.031
[6.35 ± 0.787]
typ.
0.955 ± 0.015
[24.26 ± 0.381]
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RH, NH
Wirewound Resistors, Military, MIL-PRF-18546 Qualified,
Type RE, Aluminum Housed, Chassis Mount
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
UNIT
RH RESISTOR CHARACTERISTICS
ppm/°C
± 100 for 0.1 Ω to 0.99 Ω, ± 50 for 1 Ω to 9.9 Ω, ± 20 for 10 Ω and above
VAC
1000 for RH/5, RH-10 and RH/25, 2000 for RH/50, 4500 for RH/100 and RH/250
Short Time Overload
-
5 × rated power for 5 s
Maximum Working Voltage
V
Insulation Resistance
Ω
(P x R)1/2
10 000 MΩ minimum dry, 1000 MΩ minimum after moisture test
Terminal Strength
lb
5 minimum for RH-5 and RH-10, 10 minimum for all others
-
MIL-PRF-18546 type - meets requirements of ANSI J-STD-002
°C
- 55 to + 250
Dielectric Withstanding Voltage
Solderability
Operating Temperature Range
POWER RATING
Vishay RH resistor wattage ratings are based on mounting to the following heat sink:
RH-5 and RH-10:
4" x 6" x 2" x 0.040" thick aluminum chassis (129 sq. in. surface area)
RH-25:
5" x 7" x 2" x 0.040" thick aluminum chassis (167 sq. in. surface area)
RH-50:
12" x 12" x 0.059" thick aluminum panel (291 sq. in. surface area)
RH-100 and RH-250:
12" x 12" x 0.125" thick aluminum panel (294 sq. in. surface area)
AMBIENT TEMPERATURE DERATING
RATED POWER IN %
Derating is required for ambient temperatures above 25 °C, see the following graph.
Curves A, B, C apply to operation of unmounted resistors. Curve D applies to all types when mounted to specified heat sink.
A = RH-5 and RH-10 size resistor, unmounted
B = RH-25 size resistor, unmounted
C = RH-50, RH-100 and RH-250 size resistor, unmounted
D = All types mounted to recommended aluminum heat sink
120
100
80
D
A
60
B
C
40
20
0
- 55 - 50
0
50
150
25
AMBIENT TEMPERATURE IN °C
Derating is also required when recommended heat sink
area is reduced.
A = RH-5 and RH-10 size resistor
B = RH-25 size resistor
C = RH-50, RH-100 and RH-250 size resistor
RATED POWER IN %
Derating
REDUCED HEAT SINK DERATING:
250
100
90
80
A
70
60
B
50
40
C
30
20
10
0
0
20
Heat Sink Derating
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For technical questions, contact: [email protected]
40
60
80
100
% OF RECOMMENDED HEAT SINK AREA
Document Number: 30201
Revision: 11-Jul-07
RH, NH
Wirewound Resistors, Military, MIL-PRF-18546 Qualified,
Type RE, Aluminum Housed, Chassis Mount
Vishay Dale
MATERIAL SPECIFICATIONS
SPECIAL MODIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
A number of special modifications to the aluminum housed
resistor style are available upon request. Special
modifications include:
Core: Ceramic, steatite or alumina, depending on physical
size
Encapsulant: Silicone molded construction
Housing: Aluminum with hard anodic coating
End Caps: Stainless steel
Standard Terminals: For RH-5 through RH-50 size terminal
finish - Tin/lead is 60/40 Sn/Pb w/Nickel underplate and
Lead (Pb)-free is Ni/Pd/Au, finish is on copper clad steel core
terminal. For RH-100 and RH-250 terminals are threaded
stainless steel.
• Terminal configurations and materials
• Resistance values and tolerances
• Low resistance temperature coefficient (RTC)
• Housing configuration
• Threaded mounting holes
• Preconditioning and other additional testing
APPLICABLE MIL SPECIFICATIONS
Note:
Military (RE) parts are only available with tin/lead finish
Part Marking: DALE, model, wattage, value, tolerance, date
code
MIL-PRF-18546 is the military specification covering
aluminum housed, chassis mount, power resistors. VISHAY
RH and NH resistors are listed as qualified on the
MIL-PRF-18546 QPL.
NH NON-INDUCTIVE
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 (NH-5, for example).
PERFORMANCE
TEST
CONDITIONS OF TEST
Thermal Shock
Rated power applied until thermally stable, then a minimum of 15 min at - 55 °C
± (0.5 % + 0.05 Ω) ΔR
Short Time Overload
5 x rated power for 5 s
± (0.5 % + 0.05 Ω) ΔR
Dielectric Withstanding
Voltage
1000 Vrms for RH-5, RH-10 and RH-25; 2000 Vrms for RH-50
4500 Vrms for RH-100 and RH-250; duration 1 min
± (0.2 % + 0.05 Ω) ΔR
Temperature
250 °C for 2 h
± (0.5 % + 0.05 Ω) ΔR
Moisture Resistance
MIL-STD-202 Method 106, 7b not applicable
± (1.0 % + 0.05 Ω) ΔR
Shock, Specified Pulse
MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks
± (0.2 % + 0.05 Ω) ΔR
Vibration, High Frequency
Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each
± (0.2 % + 0.05 Ω) ΔR
Load Life
1000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
± (1.0 % + 0.05 Ω) ΔR
Terminal Strength
30 s, 5 pound pull test for RH-5 and RH-10, 10 pound pull test for other sizes,
torque test - 24 pound inch for RH-100 and 32 pound inch for RH-250
± (0.2 % + 0.05 Ω) ΔR
Document Number: 30201
Revision: 11-Jul-07
For technical questions, contact: [email protected]
TEST LIMITS
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Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
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information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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Document Number: 91000
Revision: 18-Jul-08
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