Wirewound Resistors,
Industrial Power, Flat (HL), Miniature Flat (HLM)
HL, NHL FLAT and HLM, NHLM
Vishay Dale
www.vishay.com For technical questions, contact: ww2bresistors@vishay.com Document Number: 30209
72 Revision: 13-Jul-07
FEATURES
•High temperature silicon coating
•Mounting accommodations ideally suited to
high density packaging
•Self-stacking hardware for horizontal or vertical
placement
•Withstands high vibrations without loosening
•Mounting hardware functions as a heat sink
allowing greater heat dissipation and less
derating of stacked units
•Available in non-inductive styles (type NHL and NHLM)
with Aryton-Perry winding
* Pb containing terminations are not RoHS compliant, exemptions may apply
TYPE HL FLAT STYLE
Available
Pb-free
RoHS*
COMPLIANT
e3
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
POWER RATING P25 °C
W
RESISTANCE RANGE ΩWEIGHT (typical)
g
± 5 % ± 10 %
HL024
NHL024
HL-24
NHL-24 30 1.0 - 11K
1.0 - 1.2K
0.10 - 11K
1.0 - 1.2K 20.14
HL035
NHL035
HL-35
NHL-35 40 1.0 - 26K
1.0 - 3K
0.10 - 26K
1.0 - 3K 30.07
HL055
NHL055
HL-55
NHL-55 55 1.0 - 54K
1.0 - 6.8K
0.10 - 54K
1.0 - 6.8K 51.25
HL070
NHL070
HL-70
NHL-70 70 1.0 - 77K
1.0 - 9.4K
0.10 - 77K
1.0 - 9.4K 60.48
HL095
NHL095
HL-95
NHL-95 95 1.0 - 99.9K
1.0 -12.4K
0.10 - 99.9K
1.0 - 12.4K 76.51
TYPE HLM MINIATURE FLAT STYLE
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
POWER RATING P25 °C
W
RESISTANCE RANGE ΩWEIGHT (typical)
g
± 5 % ± 10 %
HLM010
NHLM010
HLM-10
NHLM-10 10 1.0 - 15K
1.0 - 1.8K
0.10 - 15K
1.0 - 1.8K 0.41
HLM015
NHLM015
HLM-15
NHLM-15 15 1.0 - 26K
1.0 - 3.6K
0.10 - 26K
1.0 - 3.6K 0.47
HLM020
NHLM020
HLM-20
NHLM-20 20 1.0 - 71K
1.0 - 9.8K
0.10 - 71K
1.0 - 9.8K 0.74
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: NHLM01010Z10R00JJ (preferred part number format)
GLOBAL
MODEL TERMINAL
DESIGNATION TERMINAL
FINISH RESISTANCE
VALUE TOLERANCE PACKAGING CODE SPECIAL
NHLM010 09
10
16
E = Lead
(Pb)-free
Z = Tin/lead
N = Nickel
R = Decimal
K = Thousand
10R00 = 10.0 Ω
1K000 = 1 kΩ
J = ± 5.0 %
K = ± 10.0 %
E = Lead (Pb)-free skin pack
J* = Skin pack (J01)
(Dash Number)
(up to 2 digits)
From 1 - 99
as applicable
(See “Standard
Electrical
Specifications”
table above for
additional P/N’s)
* Tin/lead for type “Z”, lead (Pb)-free for type “N”
Historical Part Number Example: NHLM-10-10Z 10 Ω5 % J01 (will continue to be accepted)
NHLM-10 10Z 10 Ω5 % J01
HISTORICAL MODEL TERMINAL/FINISH RESISTANCE VALUE TOLERANCE PACKAGING
HLM01010Z10R00JJN
HL, NHL FLAT and HLM, NHLM
Wirewound Resistors,
Industrial Power, Flat (HL), Miniature Flat (HLM) Vishay Dale
Document Number: 30209 For technical questions, contact: ww2bresistors@vishay.com www.vishay.com
Revision: 13-Jul-07 73
DIMENSIONS in inches [millimeters]
TYPE HL FLAT STYLE
TYPE HLM MINIATURE FLAT STYLE
TERMINAL DIMENSIONS
TERMINAL FINISH
“E” Finish - 100 % Sn coated steel. “Z” Finish - 60/40 Sn/Pb coated
steel. “N” Finish - Nickel coated steel. Finish for terminal style 16 is
limited to nickel plated steel (N).
0.625 [15.88]
0.594 [15.08]
0.196 [4.98] Dia. typ.
A
B
C
0.563 ± 0.030
[14.29 ± 0.794]
0.438 ± 0.030
[11.11 ± 0.794]
0.313 [7.94] Dia.
1.188 [30.16]
max.
MODEL
DIMENSIONS
in inches [millimeters]
A
± 0.063
[1.59]
B
± 0.063
[1.59]
C
± 0.031
[0.79]
DISTANCE
BETWEEN
TERMINALS
(REF.)
TERMINAL
DESIGNATION
STANDARD OPTIONAL
HL024
1.250 2.500 2.000 0.718 09Z 16N
NHL024
[31.75] [63.50] [50.80] [18.24]
HL035
2.000 3.250 2.750 1.468 09Z 16N
NHL035
[50.80] [82.55] [69.85] [37.29]
HL055
3.500 4.750 4.250 2.968 09Z 16N
NHL055
[88.90] [120.65] [107.95] [75.39]
HL070
4.750 6.000 5.500 4.218 09Z 16N
NHL070
[120.65] [152.40] [139.70] [107.14]
HL095
6.000 7.250 6.750 5.468 09Z 16N
NHL095
[152.40] [184.15] [171.45] [138.89]
0.126 [3.20] Dia. typ.
0.375 [9.52]
A
B
C
0.218 [5.54]
Dia. typ.
0.343 [8.71]
max.
0.412
[10.46]
max.
0.250 [6.35]
MODEL
DIMENSIONS
in inches [millimeters]
A
± 0.063
[1.59]
B
± 0.063
[1.59]
C
± 0.031
[0.79]
DISTANCE
BETWEEN
TERMINALS
(REF.)
STANDARD
TERMINAL
DESIGNATION
HLM010
0.750 1.312 1.000 0.406 10Z
NHLM010
[19.05] [33.32] [25.40] [10.31]
HLM015
1.000 1.562 1.250 0.656 10Z
NHLM015
[25.40] [39.67] [31.75] [16.66]
HLM020
2.062 2.625 2.313 1.718 10Z
NHLM020
[52.37] [66.68] [58.75] [43.64]
Style 16 B
D
A
C
B
D
C
A
Style 09
and 10
DIMENSION
DIMENSIONS in inches [millimeters]
TERMINAL TYPE
TERM 09 TERM 10 TERM 16
A0.188 0.125 0.188
[4.76] [3.18] [4.76]
B0.500 0.188 0.563
[12.70] [4.76] [14.29]
C0.104 0.063 0.050
[2.64] [1.60] [1.27]
D0.020 0.020 0.020
[0.51] [0.51] [0.51]
HL, NHL FLAT and HLM, NHLM
Vishay Dale Wirewound Resistors,
Industrial Power, Flat (HL), Miniature Flat (HLM)
www.vishay.com For technical questions, contact: ww2bresistors@vishay.com Document Number: 30209
74 Revision: 13-Jul-07
POWER RATING
Vishay HL flat and HLM resistor wattage ratings are
based on mounting horizontally to 10" x 10" x 0.04"
[254.0 mm x 254.0 mm x 1.02 mm] steel plate in 25 °C
ambient with no air flow.
EXCLUSIVE BRACKET DESIGN
Mounting strap fits snugly through resistor core and is
bound against unit by two eccentric spacers. The bracket
eliminates expensive cements and improves heat transfer
and power handling capabilities.
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy of nickel-chrome alloy,
depending on resistance value
Core: Ceramic, steatite
Coating: Special high temperature silicone
Standard Terminals: Model “Z” terminals are tinned steel
Terminal Bands: Steel
Part Marking: DALE, model, wattage, value, tolerance, date
code
NHL, NHLM NON-INDUCTIVE
Models of equivalent physical and electrical specifications
are available with non-inductive (Aryton-Perry) winding.
They are identified by adding the letter N to the front of the
HL and HLM type designation (NHLM020, for example). For
NHL and NHLM models maximum resistance values are
lower, see STANDARD ELECTRICAL SPECIFICATIONS
table.
TECHNICAL SPECIFICATIONS
PARAMETER UNIT HL, HLM RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C ± 90 for 0.1 Ω to 0.99 Ω; ± 50 for 1 Ω to 9.9 Ω; ± 30 for 10 Ω and above
Dielectric Withstanding Voltage VAC 1000, from terminal to mounting hardware
Short Time Overload - 10 x rated power for 5 s
Maximum Working Voltage V (P x R)1/2
Insulation Resistance Ω1000 MΩ minimum dry, 100 MΩ minimum after moisture test
Operating Temperature Range °C - 55 to + 350
HL, NHL FLAT and HLM, NHLM
Wirewound Resistors,
Industrial Power, Flat (HL), Miniature Flat (HLM) Vishay Dale
Document Number: 30209 For technical questions, contact: ww2bresistors@vishay.com www.vishay.com
Revision: 13-Jul-07 75
Derating is required for ambient temperatures above 25 °C per the following graph.
- 65 - 50 0 50 150 250 350
AMBIENT TEMPERATURE IN
°C
120
100
80
60
40
20
0
% N I R E W O P D E T A R
Derating
25
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Thermal Shock Rated power applied until thermally stable,
then a minimum of 15 min at - 55 °C ± (2.0 % + 0.05 Ω) ΔR
Short Time Overload 10 x rated power for 5 s ± (2.0 % + 0.05 Ω) ΔR
Dielectric Withstanding Voltage 1000 Vrms, 1 min ± (0.1 % + 0.05 Ω) ΔR
Low Temperature Storage - 55 °C for 24 h ± (2.0 % + 0.05 Ω) ΔR
High Temperature Exposure 250 h at + 350 °C ± (2.0 % + 0.05 Ω) ΔR
Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ± (2.0 % + 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” ± (3.0 % + 0.05 Ω) ΔR
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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All product specifications and data are subject to change without notice.
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(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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therein, which apply to these products.
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