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CHARACTERISTICS
TAP600 Series
600 Watt Heat Sinkable Planar
Resistance Values
0.25Ω to 100KΩ
Resistance Tolerance
±10% Std., 5% available on request.
Temperature Coefficient
±150ppm/°C (others upon request)
Maximum Working Voltage
5,000V DC, higher voltage on request, not
exceeding max. power
Power Rating
600W at 70°C heat sink temperature or
85°C bottom case temperature. This value
is only valid by using a thermal conduction
to the heat sink Rth -cs<0.025°C/W.
The value can be reached by using thermal
transfer compound with a heat conductivity
of 1w/mk. The flatness of the cooling plate
must be better than 0.05mm overall. The
roughness of the surface should not exceed
6.4µm.
Dielectric Strength Voltage
6k Vrms, 50Hz, 1min standard; up to 12k
Vrms available
Single Shot Voltage
Up to 12KV Normwave (1.5/50 µsec)
Insulation Resistance
10GΩ min. at 500V
Creeping Distance
42mm min.
Air Distance
14mm min.
Inductance
≤80nH
Capacitance/Mass
≤110pF
Capacitance/Parallel
≤40pF
Operation Temperature
-55°C to +150°C
Max. Torque for Contacts
2 Nm
Max. Torque for Mounting
1.8 Nm
Derating (thermal resist.)
8.73W/°C (0.115°C/W)
Test Method
Typical
Results - ∆R
Short Time
Overload
1000 W/10 Sec. @
70°C
0.4%
Humidity Steady
State
56 Days/40°C/ 95°C 0.25%
Temp. Cycling
-55/+125/5 Cycles 0.20%
Shock
40g/4,000 Times 0.25%
Vibrations
2 - 500Hz/10g 0.25%
Load Life 1,000
Cycles
Pn 30 min. ON/30
min. OFF
0.40%
Terminal Strength
of Contacts
200N 0.05%
Derating
Percent rated power
Bottom of base plate Temperature, °C
0255075 100 125 150 175
40
0
60
80
120
20
100
Rated power, watts
240
0
360
480
720
120
600
Ohmite’s TAP600 delivers 600
watts of reliable power to a
variety of power conditioning,
power transmission, and power
control applications. These resis-
tors can be designed for liquid
or air cooled heat sink systems.
Applications include variable
speed drives, power supplies,
robotics, motor control, and other
control devices.
FEATURES
• Dielectric Strength up to 12KV
• Special Design for Low Inductance and
Capacitance Values
• Contacts allow for easy load connec-
tion with M5 screws (not included)
available with M4 as special request.
Thread depth 7mm
• Encapsulated with a special resin filled
epoxy casing with a large creepage
distance to mass, large air distance
between terminals, and a high insula-
tion resistance (CTI 600).
• Materials meet the requirements of
UL94-V0
(continued)
