The HS/HSN Series offers
greater power capacity (100
and 250 watts) in the same
design format as Ohmite’s 89
Series.
HS/HSN Series maintains
the same construction, materi-
als, and manufacturing tech-
niques as the 89 Series. As
a made-to-order product, it is
recommended for higher vol-
ume applications.
S P E C I F I C A T I O N S
Material
Housing: Aluminum with hard
anodic coating.
Internal Coating: Silicone.
Core: Ceramic.
Terminals: Solder-coated axial
Derating: Linearly from
100% @ +25°C to 0% @
+275°C.
HS/HSN Series
Wirewound, Industrial/Commercial Grade
Aluminum Housed Axial Terminal
D
C
A
G
I
H
N
Electrical
Tolerance: ±1% and ±5% (other
tolerances available).
Power rating: Rating is based
on chassis mounting area and
temperature stability. Proper heat
sink: 12” x 12” x 0.125 Aluminum
panel.
M
F E A T U R E S
• Standard winding (Model HS)
• Non-inductive winding (Model
HSN)
• Molded construction for total
environmental protection
• Complete welded construction
• Mounts on chassis to utilize
heat-sink effect
• High stability at conventional
power ratings
• Flat marking surface for easy
identification
• RoHS compliant; add “E” suffix
to part number to specify.
E
B F
L
K
J
nickel-plated brass nut,
stainless steel stud
Maximum ohmic values:
See chart.
Overload: 5 times rated wattage
for 5 seconds.
Temperature coefficient:
Under 1Ω: ±90 ppm/°C
1 to 9.99Ω: ±50 ppm/°C
10Ω and over: ±30 ppm/°C.
Dielectric withstanding voltage:
4500VAC.
Power Rating
(Watts)
Resistance Range
(Ohms)
Max. Working
Voltage
Series
HS100
100
100
250
250
.05 - 29.4K
1.0 - 14.7K
.10 - 35.7K
1.0 - 17.4K
1900
1350
2300
1625
HSN100
HS250
HSN250
D I M E N S I O N S
D E R AT I N G C U R V E
HS100 / HSN100
HS250 / HSN250
250 watt
100
in. (mm)
Dim. A
Dim. B
Dim. C
Dim. D
Dim. E
Dim. F
Dim. G
Dim. H
Dim. I
Dim. J
Dim. K
Dim. L
Dim. M
Dim. N
100 watt
2.75 ± .010 (69.85 ± .254)
2.25 ± .010 (57.15 ± .254)
3.50 ± .031 (88.90 ± .787)
5.478 ± .093 (139.14 ± 2.36)
1.812 ± .031 (46.02 ± .787)
2.812 ± .031 (71.42 ± .787)
1.75 ± .031 (44.45 ± .787)
0.188 ± .031 (4.78 ± .787)
0.770 ± .015 (19.56 ± .381)
0.375 ± .031 (9.52 ± .787)
0.188 ± .010 (4.78 ± .254)
0.219 ± .031 (5.56 ± .787)
12 - 24 UNC - 2A THD
3.875 ± .010 (98.425 ± .254)
2.5 ± .010 (63.50 ± .254)
4.5 ± .031 (114.30 ± .787)
7.0 ± .093 (117.80 ± 2.36)
2.125 ± .031 (53.98 ± .787)
3.0 ± .031 (76.20 ± .787)
2.188 ± .031 (55.58 ± .787)
0.250 ± .031 (6.35 ± .787)
0.955 ± .015 (24.26 ± .381)
0.312 ± .031 (7.92 ± .787)
0.188 ± .010 (4.78 ± .254)
0.25 ± .031 (6.35 ± .787)
1/4 - 20 UNC - 2A THD
1.25 ± .031 (31.75 ± .787)
80
60
40
20
0
Mounted to
aluminum chassis
Unmounted
0
25 50 75 100 125 150 175 200 225 250 275
Ambient Temperature, °C
0.989 ± .031 (25.12 ± .787)
O R D E R I N G I N F O R M AT I O N
Non-Inductive Winding
Optional (blank = std. winding)
H S N 1 0 0 J R 0 5 E
Series Wattage Tolerance Ohms
RoHS
100
250
F = 1%
J = 5%
K=10%
R05 = 0.05Ω Compliant
1R0 = 1.0Ω
10R
100
=
=
10Ω
100Ω
10K = 10,000Ω
14K7= 14,700Ω
Check product availability at www.ohmite.com
To see the latest in resistor
technology click on the “What’s
New” tab at ohmite.com
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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