TAP600 Series
Heat Sinkable Planar
THIS PRODUCT IS DESIGNED FOR USE WITH PROPER HEATSINKING.
Maximum base plate temperature of the resistor must be monitored and kept within specified limits to establish the power rating. Best technique is to attach a thermocouple to the side of the base plate of the resistor. Temperature of plastic housing or heat sink cannot be used to establish rating of the resistor.
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Ohmite's TAP600 delivers 600 watts of reliable power to a variety of power conditioning, power transmission, and power control applications. These resistors 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.
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FEATURES
- Dielectric Strength Available Up to 12KV
- Special Design for Low Inductance and Capacitance Values
- Contacts allow for easy load connection 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 insulation resistance (CTI 600).
- Materials meet the requirements of UL94-V0
SPECIFICATIONS
Electrical
- Resistance Values: 0.25 ohms to 100K ohms
- 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: 10G ohms 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)
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PERFORMANCE DATA
| Test | Method | Typical Results |
| 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 CURVE
DIMENSIONS
HOW TO ORDER
Standard resistance values:
| 1.10 | 1.0 | 15 | 500 |
| 0.20 | 2.0 | 30 | 1000 |
| 0.25 | 3.0 | 50 | 2500 |
| 0.33 | 4.0 | 75 | 3000 |
| 0.50 | 5.0 | 100 | 5000 |
| 10 | 300 | 10,000 |
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Download Datasheet (PDF)