Type THS Series
Tyco are the leading European
supplier of standard and custom
designed aluminium housed
resistors for general-purpose use,
power supplies, power generation
and the traction industry.
The THS is a range of extremely
stable, high quality wire wound
resistors capable of dissipating
high power in a limited space with
relatively low surface temperature.
The power is rapidly dissipated
as heat through the aluminium
housing to a specified heatsink.
The resistors are made from quality
materials for optimum reliability and
stability. Tyco can test resistors to
conform to relevant international,
MIL or customer specifications.
Key Features
■
Established product
with proven reliability
•Leading the way with
over 50 years of
design and
manufacturing
experience
■
10 Watts to 75 Watts
■
Versatile product
•Bench mark in
every industry
Applications
■
Braking Resistor
■
Balancing Resistor
■
Capacitor Charging
& Discharging
■
Crowbar
■
Filter
■
Electrical Machinery
general use
■
Available through
Distribution
Characteristics -
Electrical
Long Term Stability: For improvements in long-term stability, resistors must be derated as
follows; for 50% of stated ΔR maximum dissipation must not exceed
70% of rating; for 25% of stated ΔR maximum, dissipation must not
exceed 50% of rating
Insulation Resistance: Dry: 10,000MΩ minimum. After moisture test: 1000MΩ minimum.
Heat Dissipation: Although the use of proprietary heat sinks with lower thermal
resistance is acceptable, up rating is not recommended.
The use of proprietary heat sink compound to improve thermal
conductivity is recommended for optimum performance of all sizes
Specification: Temperature coefficient below 100R, 50ppm/°C
Temperature coefficient above 100R, 30ppm/°C
Tolerance, 5% standard
Characteristics - Electrical
THS - 10 Watts to 75 Watts
THS10 THS15 THS25 THS50 THS75
Dissipation @ 25°C with Heatsink (Watts): 10 15 25 50 75
Without Heatsink: 5.5 8 12.5 20 40
Ohmic Value Min (Ohms): R01 R01 R01 R01 R05
Max: 10K 15K 36K 50K 50K
Max. Working Voltage (DC or ACrms) Volts: 160 265 550 1250 1400
Dielectric Strength (AC Peak) Volts: 1400 1400 2500 2500 5000
Stability (% resistance change, 1000 hours) (%): 11112
Standard Heatsink - Area (mm2): 41500 41500 53500 53500 99500
Thickness (mm): 11113
Number of Mounting Holes: 2 hole 2 hole 2 hole 2 hole 4 hole
Product Specifications -
THS10 - THS75 L
4.0
5.0
Type L
THS10, 15 7
THS25, 50 10
THS75 8
R
N
J
M
L
H
Dimensions -
THS10 - THS50
P
U
T
2 x Mounting Hole
THS10 - 2.4mm
THS15 - 2.4mm
THS25 - 3.3mm
THS50 - 3.3mm
Type H±0.3 J±0.3 L Max M Max N Max P Max R Min T±0.5 U Max
THS10 11.3 12.4 17.0 30.0 17.0 9.0 1.9 3.4 2.5
THS15 14.3 15.9 21.0 36.5 21.0 11.0 1.9 5.2 3.2
THS25 18.3 19.8 29.0 51.8 28.0 15.0 2.8 7.2 3.2
THS50 39.7 21.4 51.0 72.5 30.0 17.0 2.8 7.9 3.2
Literature No. 1773277
Issued: 03-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
Aluminium Housed Power Resistors
Type THS Series
-25 0 25 50 75 100 125 150 175 200 225 250275
0.01 0.1 1 10 100 1000 10000 100000
Resistance (Ohms)
Heatsink Temp. (degC)
75
60
50
40
30
20
10
0
400
350
300
250
200
150
100
50
0
Pulse Energy (Joules) Power (W)
THS10 THS15 THS25 THS50 THS75
Pulse Energy THS10 to THS75
Derating Curve THS10 to THS75
Literature No. 1773277
Issued: 03-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
Aluminium Housed Power Resistors
Type THS Series
M
L
N
J
H
R
P
U
T
4 x Mounting Hole
HSC75 - 4.4mm
Dimensions -
THS75
Type H±0.3 J±0.3 K±0.2 L Max M Max N Max P Max R Min T±0.5 U Max
THS75 29.0 37.0 4.4 49.0 71.0 47.5 26.0 5.0 11.5 3.5
THS10
THS15
THS25
THS50
THS75
Literature No. 1773277
Issued: 03-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
Aluminium Housed Power Resistors
Type THS Series
How to Order
THS 50 680R J
Common Part
10 Watt = THS10
15 Watt = THS15
25 Watt = THS25
50 Watt = THS50
75 Watt = THS75
Power Rating
0.1ohm
(100 mille ohms)
R10
1ohm
(1000 mille ohms)
1R0
1K
(1000 ohms)
1KO
Resistance Value Tolerance
THS- Standard
NTHS - Low
Inductance
J - 5%
Power Overload
0.1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 20 25 30 40 60
30
25
20
15
10
5
0
Multiples of Rated Power
Duration of Overload (secs)
This graph indicates the amount that the rated power (at 20°C) of the
standard HS Series resistor may be increased for overloads of 100mS to 60S
0 20 60 100 150 200 250 300
200
100
0
Surface Temp. Rise (°C)
Power Dissipation (Watts)
For resistor mounted on standard heatsink, related to power dissipation
THS10
THS15
THS50
THS25
Surface Temperature Rise
THS75
