TAP800 OHMITE | Alldatasheet

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Technical content

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com142 TAP800 Series

800 Watt Heat Sinkable Planar

Resistance Values 1Ω to 10KΩ Resistance Tolerance ±5% to ±10% Temperature Coefficient ±150ppm/°C (others upon request) Maximum Working Voltage 5,000V DC, higher voltage on request, not exceeding max. power Short Time Overload 1,200W at 70°C for 10sec., ∆R=0.4% max. Power Rating 800W at 85°C Bottom case temperature. Peak Current up to 1500 amp. depending on pulse length and fre- quency Please ask for details Electric Strength Voltage 6kVrms, 50Hz,upto 12kVrms on special request Single Shot Voltage up to 12kV Normwave (1.5/50 µsec) Partial Discharge 4KVrms, <10pC, up to 7kV on special request Insulation Resistance 10GΩ min. at 500V Creeping Distance 42mm min. Air Distance 14mm min. Inductance 80nH Capacity/Mass 110pF Capacity/Parallel 40pF Operation Temperature -55°C to +150°C Max. Torque for Contacts 2 Nm Max. Torque for Mounting

1.8 Nm M4 screws (not included)

Derating 9.09W/°K (0.11°K/W) Power Rating 800W at 85°C bottom case temp. This value is only valid by using a thermal conduction to the heatsink Rth-cs<0.025°K/W. This value can be reached by using thermal transfer compound with a heat conduc- tivity 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. Test Method Typical Results Short time overload 1,000 W/10sec 0.4% Humidity Steady State Temp. Cycling -55/+125/5 cycles 0.20% Shock 40g/4,000 times 0.25% Vibration 2-500Hz/10g 0.25% Load Life Pn 30 min. on/30 min off, 1,000cyl 0.40% Terminal Strength 200N 0.05% DeratingRated Power, % Bottom of base plate Temperature, °C 0 2 5 5 0 7 5 100 125 150 175 120 100 Rated power, watts 320 480 640 960 160 800 Ohmite’s TAP800 Series dissipates 800 watts of power when used with a liquid or air cooled heat sink system. The Ohmite CP4 (http://www.ohmite. com/cat/sink_cp4.pdf) is an example of properly designed heat sink. The TAP800 rounds out 600 watt (TAP600) and 1000 watt (TAP1000) prod- uct offerings. Applications include variable speed drives, power supplies, robotics, motor control, con- trol devices, and other power designs.

FeATureS

  • Electric support is high alumina content ceramic metallized on the bottom for ideal heat transfer and optimum discharge.
  • Encapsulated with a special resin filled epoxy cas- ing with a large creepage distance to mass, large air distance between terminals, and a high insula- tion resistance (CTI 600).
  • Resistive element is specially designed for low inductance and capacitance. The element provides stable performance in addition to high wattage and pulse loading capability.
  • Contacts allow for easy load connecting with M4 or M5 screws (not included).
  • Materials meet the requirements of UL94-V0 chArAcTeriSTicS (continued)

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 143 TA P 800K5R0 E Tolerance J = 5% K = 10%, Std. L = 20% Style Resistance

1 Ohm = 1R0

10 Ohm = 10R

1000 Ohm = 1K0

*C to C for mounting holes 2.236-2.252" (56.8-57.2mm) L L ø0.159–0.169" (4.05–4.3mm) 0.689–0.728" (17.5–18.5mm) 2.527–2.591" (64.2–65.8mm) 1.331–1.346" (33.8–34.2mm) *2.236-2.259" (56.8-57.4mm) 1.409–1.425" (35.8–36.2mm) 2.331-2.394" (59.2-60.8mm) øM5 occ. Din 0.177–0.216" (4.5–5.5mm) 0.177–0.216" (4.5–5.5mm) 0.256-0.295" (6.5-7.5mm) 1.240–1.279" (31.5–32.5mm) *Dimensions are taken while part is mounted to a proper heatsink 1.161–1.201" (29.5–30.5mm) 0.571–610" (14.5–15.5mm) Standard Values TAP800 Series

ordering inFormATion

(in./mm)