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 ꢆ ꢇ 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
Wiꢄꢂwoꢀnd, Indꢀꢁꢅꢄiꢃl/Commꢂꢄciꢃl Gꢄꢃdꢂ
alꢀminꢀm Hoꢀꢁꢂd axiꢃl tꢂꢄminꢃl
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.
powꢂꢄ rꢃꢅing
(Wꢃꢅꢅꢁ)
rꢂꢁiꢁꢅꢃncꢂ rꢃngꢂ
(ꢆhmꢁ)
Mꢃx. Woꢄking
Volꢅꢃgꢂ
sꢂꢄiꢂꢁ
Hs100
100
100
250
250
.05 - 29.4K
1.0 - 14.7K
.10 - 35.7K
1.0 - 17.4K
1900
1350
2300
1625
Hsꢇ100
Hs250
Hsꢇ250
D i m e n s i o n s
D e r at i n g C u r v e
Hs100 / Hsꢇ100
Hs250 / Hsꢇ250
250 wꢃꢅꢅ
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 wꢃꢅꢅ
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)
1.88 .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)
6.73 .093 (170.94 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
F = 1%
J = 5%
K=10%
R05 = 0.05Ω Compliant
1R0 = 1.0Ω
250
10R
100
=
=
10Ω
100Ω
10K = 10,000Ω
14K7= 14,700Ω
Check product availability at www.ohmiꢅꢂ.com
to ꢁꢂꢂ ꢅhꢂ lꢃꢅꢂꢁꢅ in ꢄꢂꢁiꢁꢅoꢄ
ꢅꢂchnology click on ꢅhꢂ “Whꢃꢅ’ꢁ
ꢇꢂw” ꢅꢃb ꢃꢅ ohmiꢅꢂ.com
Ohmite Mfg. Co.
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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