HS25 250R 1% Arcol, HS25 250R 1% Datasheet

Wirewound Resistors - Chassis Mount 25W 250 OHM1%

HS25 250R 1%

Manufacturer Part Number
HS25 250R 1%
Description
Wirewound Resistors - Chassis Mount 25W 250 OHM1%
Manufacturer
Arcol
Datasheet

Specifications of HS25 250R 1%

Resistance
250 Ohms
Tolerance
1 %
Power Rating
25 Watts
Temperature Coefficient
+/- 100 PPM / C
Operating Temperature Range
- 55 C to + 200 C
Dimensions
14 mm W x 27.3 mm L x 14.6 mm H
Product
Power Resistors Wire Wound Aluminum Housed
Dielectric Strength
2500 VoltsAC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
• High Power to volume
• Wound to maximise High Pulse Capability
• Values from R005 to 100K
• Custom designs welcome
• RoHS Compliant
HS
Manufactured in line with the requirements of MIL
18546 and IEC 115, designed for direct heatsink
mounting with thermal compound to achieve maximum
performance.
Characteristics
Tolerance (Code):
Tolerance for low Ω values:
Temperature coefficients:
Insulation resistance (Dry):
Power dissipation:
Ohmic values:
Low inductive (NHS):
NHS ohmic value:
NHS working volts:
Temp. Rise & Power Dissipation
Surface temperature of resistor related to power dissipation.
The resistor is standard heatsink mounted using a proprietary
heatsink compound.
www.arcolresistors.com
ARCOL UK Limited,
Threemilestone Ind. Estate,
Truro, Cornwall, TR4 9LG, UK.
T +44 (0) 1872 277431
F +44 (0) 1872 222002
E sales @ arcolresistors.com
200
100
5
0
HS15
HS25
Aluminium Housed Resistors
20
HS10
HS50
50
HS75
75
100
P O W E R DISSI PAT IO N ( WAT T S )
HS100
HS150
150
Standard ±5% (J) and ±10% (K). Also available ±1% (F), ±2% (G) and ±3% (H)
Typically ≥ R05 ±5% ≤ R047 ±10%
Typical values < 1K 100ppm Std. > 1K 25ppm Std. For lower TCR’s please contact Arcol
10,000 MΩ minimum
At high ambient temperature dissipation derates linearly to zero at 200°C
From R005 to 100K depending on wattage size
Specify by adding N before HS Series code, e.g. NHS50
Divide standard HS maximum value by 4
Divide standard HS maximum working voltage by 1.414
HS200
200
HS250
250
HS300
300
Page 1 of 2
The information contained herein does not form part of
a contract and is subject to change without notice. Arcol
operate a policy of continual product development, therefore,
specifications may change.
It is the responsibility o f the customer to ensure that the component
selected from our range is suitable for the intended application. If in
doubt please ask Arcol.
Heat Dissipation
Ordering Procedure
Heat dissipation: Whilst the use of proprietary heat sinks
with lower thermal resistances is acceptable, uprating is not
recommended. For maximum heat transfer it is recommended
that a heat sink compound be applied between the resistor
base and heat sink chassis mounting surface. It is essential that
the maximum hot spot temperature of 200°C is not exceeded,
therefore, the resistor must be mounted on a heat sink of
correct thermal resistance for the power being dissipated.
Standard Resistor. To specify standard: Series, Watts, Ohmic
Value, Tolerance Code, e.g.: HS25 2R2 J
Non Inductive Resistor. To specify add N, e.g.: NHS100 10R J
10 / 05.45

Related parts for HS25 250R 1%

HS25 250R 1% Summary of contents

Page 1

... DISSI PAT WAT ARCOL UK Limited, Threemilestone Ind. Estate, Truro, Cornwall, TR4 9LG, UK. T +44 (0) 1872 277431 F +44 (0) 1872 222002 E sales @ arcolresistors.com www.arcolresistors.com Heat Dissipation Heat dissipation: Whilst the use of proprietary heat sinks with lower thermal resistances is acceptable, uprating is not recommended. For maximum heat transfer it is recommended that a heat sink compound be applied between the resistor HS300 base and heat sink chassis mounting surface essential that the maximum hot spot temperature of 200°C is not exceeded, ...

Page 2

... HS Aluminium Housed Resistors Electrical Specifications Power rat- Watts Style ing on std. with no Size MIL-R heatsink heatsink 18546 @25°C @25°C HS10 5.5 HS15 HS25 12.5 HS50 HS75 75 45 HS100 100 50 HS150 150 55 HS200 200 50 HS250 250 60 HS300 300 75 HS10-HS300 Standard Resistor J L 2.1 ± 0.1 ...

Related keywords