Document Number: 30210
Revision 28-Mar-02
www.vishay.com
64
HLW, NHLW
Vishay Dale
For technical questions, contact ww2bresistors@vishay.com
Wirewound Resistors,
Industrial Power, Tubular
STANDARD ELECTRICAL SPECIFICATIONS
FEATURES
• High temperature silicon coating
• Complete welded construction
• High thermal capacity for intermittent or short duration
• Available in non-inductive styles (model NHLW) with
Aryton-Perry winding for lowest reactive components
• Axial or radial terminals for through hole or lead weld
applications
• Excellent stability in operation
MODEL POWER RATING RESISTANCE RANGE WEIGHT
P25°CΩ(Typical)
W± 5% ± 10% g
HLW-3 31.0 - 6K 0.10 - 6K 1.16
NHLW-3 1.0 - 700 1.0 - 700
HLW-5 5.25 1.0 - 15k 0.10 - 15K 2.12
NHLW-5 1.0 - 1.9k 1.0 - 1.9K
HLW-6 81.0 - 20.5k 0.10 - 20.5K 4.60
NHLW-6 1.0 - 2.7k 1.0 - 2.7K
HLW-10 10 1.0 - 29k 0.10 - 29K 6.24
NHLW-10 1.0 - 3.7k 1.0 - 3.7K
HLW-12 12 1.0 - 58k 0.10 - 58K 6.60
NHLW-12 1.0 - 3.9k 1.0 - 3.9K
HLW-15 15 1.0 - 60k 0.10 - 58K 8.82
NHLW-15 1.0 - 4.3k 1.0 - 4.3K
HLW-20 20 1.0 - 95k 0.10 - 95K 11.36
NHLW-20 1.0 - 6.8k 1.0 - 6.8K
PARAMETER UNIT HLW RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C± 90 for 0.1Ω to 0.99Ω; ± 50 for 1Ω to 9.9Ω; ± 30 for 10Ω and above
Dielectric Withstanding Voltage VAC 1000, from terminal to mounting hardware
Short Time Overload - 10 x rated power for 5 seconds
Maximum Working Voltage V (P x R)1/2
Insulation Resistance Ω1000 Megohm minimum dry, 100 Megohm minimum after moisture test
Operating Temperature Range °C - 55 / + 350
TECHNICAL SPECIFICATIONS
ORDERING INFORMATION
HLW-12 A1 Z 10Ω5%
MODEL TERMINAL TERMINAL FINISH RESISTANCE TOLERANCE
Ω± %
www.vishay.com
65
HLW, NHLW
Vishay Dale
Document Number: 30210
Revision 28-Mar-02 For technical questions, contact ww2bresistors@vishay.com
Wirewound Resistors, Industrial Power, Tubular
DIMENSIONS in inches [millimeters]
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic, steatite
Coating: Special high temperature silicone
Standard Terminals: Model “Z” terminals are tinned
Copperweld
Terminal Bands: Steel
Part Marking: DALE, Model, Wattage, Value, Tolerance,
Date Code Derating
RATED POWER IN %
AMBIENT TEMPERATURE IN °C
MODEL A B C D
(Max.) Typical ± 0.031 [0.79] Typical
HLW-3 0.297 0.282 0.063 0.047 0.438 0.203 0.125
[7.54] [7.16] [1.59] [1.19] [11.11] [5.16] [3.18]
HLW-5 0.344 0.469 0.063 0.047 0.625 0.250 0.125
[8.73] [11.91] [1.59] [1.19] [15.88] [6.35] [3.18]
HLW-6 0.406 0.688 0.125 0.094 1.000 0.313 0.188
[10.32] [17.48] [3.18] [2.38] [25.40] [7.94] [4.76]
HLW-10 0.563 0.688 0.125 0.094 1.000 0.438 0.313
[14.29] [17.48] [3.18] [2.38] [25.40] [11.11] [7.94]
HLW-12 0.406 1.438 0.125 0.094 1.750 0.313 0.188
[10.32] [36.53] [3.18] [2.38] [44.45] [7.94] [4.76]
HLW-15 0.563 1.188 0.125 0.094 1.500 0.438 0.313
[14.29] [30.18] [3.18] [2.38] [38.10] [11.11] [7.94]
HLW-20 0.563 1.688 0.125 0.094 2.000 0.438 0.313
[14.29] [42.88] [3.18] [2.38] [50.80] [11.11] [7.94]
CORE DIMENSIONS
LENGTH 0.D. I.D.
± 0.063 [1.59] ± 0.031 [0.79]
AXIAL TERMINAL RADIAL TERMINAL MOUNTING
DESIGNATION DESIGNATION HARDWARE
A2Z R2Z -
A2Z R2Z -
A1Z R1Z 101, 204, 301
A1Z R1Z 101, 203, 301
A1Z R1Z 101, 204, 301
A1Z R1Z 101, 203, 301
A1Z R1Z 101, 203, 301
TERMINAL FINISH
Terminals are 20 AWG for HLW-3 & HLW-5 Size and 18 AWG for all other sizes. Standard finish for terminals is tinned
solder finish (Z), optional bare 180 alloy terminals (W) are available.
MOUNTING HARDWARE DIMENSIONS in inches [millimeters]
X
H
Y
Z
HOLE (Dia)
203 204
0.625 [15.88] 0.375 [9.53]
0.672 [17.07] 0.281 [7.14]
0.250 [6.35] 0.250 [6.35]
0.469 [11.91] 0.344 [8.73]
0.161 [4.09] 0.144 [3.66]
DIMENSION BRACKET TYPE
X
Y
Z
H
B
C
MOUNTING
SLOT
BRACKET TYPE
101
1.063 [26.99]
0.500 [12.70]
0.859 [21.83]
1.000 [25.40]
1.375 [34.93]
0.750 [19.05]
0.219 x 0.438
[5.56] x [11.11]
DIMENSION
X
(Approximate)
THREAD
BRACKET TYPE
301
0.438 [11.11]
8-32
DIMENSION
RADIAL TERMINAL
CONFIGURATION
Core Length Plus “X”
.046 [1.17]
B
H
YZ
C
Core Length
Plus “X”
H
Y
Z
Threaded Rod or Screw
Centering Washer
Mica
Washer
Lock Washer
Nut 0.375 [9.52] Min.
Core
Length
Plus “X”
Horizontal Thru-Bolt Push-In Vertical Thru-Bolt
1.50 ± .125
[38.10 ± 3.18] TYP. AXIAL TERMINAL
CONFIGURATION
B
DC
A
1.50 ± 0.125
[38.10 ± 3.18] TYP
0.188 [4.76]
TYP.
-65 -50 0 50 150 250 350
25
0
20
40
60
80
100
120
