RES-HS-HSN Datasheet, PDF (1/2 Pages) Ohmite Mfg. Co. – High stability at conventional power ratings

HS/HSN Series
Aluminum Housed Axial Terminal
Wirewound, Industrial/Commercial Grade
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,
materials, and manufacturing techniques as the 89
Series. As a made-to-order product, it is recom-
mended for higher volume applications.
F e at u r e s
• Standard winding (Model HS)
• Non-inductive winding (Model HSN)
• Molded construction for total environmental protec-
tion
• 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.
S ERIE S S P ECI F ICATI O N S
Series
HS100
HSN100
HS250
HSN250
Power Rating
(Watts)
100
100
250
250
Resistance Range
(Ohms)
0.05 - 29.4K
1.0 - 14.7K
0.10 - 35.7K
1.0 - 17.4K
Max. Working
Voltage
1900
1350
2300
1625
characteristics
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.
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
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
Derating Curve
100
80
Mounted to
aluminum chassis
60
40
Unmounted
20
0 _{0 25 50 75 100 125 150 175 200 225 250 275}
Ambient Temperature, °C
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail]
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