HL, NHL FLAT
www.vishay.com
Vishay Dale
Product is End of Life Mar-2016 and Replaced by FSOT
Revision: 26-Feb-16
2
Document Number: 30209
For technical questions, contact: ww2dresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DIMENSIONS in inches [millimeters]
TYPE HL FLAT STYLE
POWER RATING
Vishay HL flat 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 “E” terminals are tinned steel
Terminal Bands: steel
Part Marking: DALE, model, wattage, value, tolerance, date
code
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).
NHL 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 type designation (NHL024, for example). For NHL
models maximum resistance values are lower, see
STANDARD ELECTRICAL SPECIFICATIONS table.
Derating is required for ambient temperatures above 25 °C
per the following graph.
DERATING
MODEL
DIMENSIONS in inches [millimeters]
A
± 0.063
[1.59]
B
± 0.063
[1.59]
C
± 0.031
[0.79]
DISTAN
CE
BETWEE
N
TERMIN
ALS (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]
0.625 [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.
DIMENSION
DIMENSIONS in inches [millimeters]
STYLE 09 STYLE 16
A
0.188 0.188
[4.76] [4.76]
B
0.500 0.563
[12.70] [14.29]
C
0.104 0.050
[2.64] [1.27]
D
0.020 0.020
[0.51] [0.51]
Style 16
B
D
A
C
B
D
C
A
Style 09
- 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
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 ) R
Short Time Overload 10x rated power for 5 s ± (2.0 % + 0.05 ) R
Dielectric Withstanding Voltage 1000 V
RMS
, 1 min ± (0.1 % + 0.05 ) R
Low Temperature Storage -55 °C for 24 h ± (2.0 % + 0.05 ) R
High Temperature Exposure 250 h at + 350 °C ± (2.0 % + 0.05 ) R
Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ± (2.0 % + 0.05 ) R
Shock, Specified Pulse MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks ± (0.2 % + 0.05) R
Vibration, High Frequency Frequency varied 10 Hz to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.2 % + 0.05 ) R
Load Life 1000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (3.0 % + 0.05 ) R
