Group: Heico
Catalog excerpts
TK/TN Series Discontinued May 2013 Product will be available till existing stock is depleted. 20 and 15 Watt TO-220 Package Thick and Thin Film 0.394" (10mm) Ohmite is proud to introduce the newest addition to our family of Heat Sinkable Power Resistors. The TK/TN Series offers 3 major advances over existing TO-220 products: • Low Resistance Values down to 0.03 ohms for current sense applications • Low Cost • Thin Film Construction is the first Thin Film power resistor in heatsinkable packaging on the market. W H Y T H IN F I L M ? Thin film technology offers the following performance advantages: • Extremely stable (low TCR) • Low Noise (parasitic capacitance and resistance) • Excellent High Frequency Performance • High Accuracy (tight tolerances) Patent pending Bracket 6200E: recommended mounting bracket kit (optional) 0.180" (4.57mm) Material Resistive element: Thick or thin film chip resistor Terminals: Tin plated copper (100Sn) Case: Ryton Heatsink plate: Black anodized aluminum Electrical Thick film TK20 Thin film TN15 Power rating: 20W 15W (Heat-sink dependent; must be attached to a proper heat sink for full power rating. Max. case temp. cannot exceed 150°C.) Derating: Linear, 100% at 25°C to 0% at 150°C Resistance Range: 10mΩ-10KΩ 4Ω-10KΩ Tolerance: 5% 1%, 2% Max. working voltage: 0.01Ω-1KΩ: √20*R √15*R 3KΩ-10KΩ: 150V 200V Max. working current: 0.01Ω-0.1Ω: 10A 0.3Ω-10KΩ: √20/R 4Ω-10KΩ: √15/R TCR: 0.01Ω-0.1Ω: ±300ppm 0.3Ω-10KΩ: ±200ppm ±50ppm 4Ω-10KΩ: (lower available) Thermal resistance. RTH: <6.25°C/W <8.33°C/W TK20 thick film 20 watt hole tapped for 6-32 screw TN15 thin film 15 watt 1% tol. TK/TN mounted vertically THIS PRODUCT IS DESIGNED FOR USE WITH PROPER HEATSINKING. o r d e r i n g i n f o r m at i o n T K 2 0 P 1 R 0 0 J E Series TCR TK20 = 20W thick film (TN15 only) TN15 = 15W thin film P = ±50ppm L = ±25ppm V = ±10ppm X = ±5ppm Tolerance RoHS F = 1% Compliant G= 2% J = 5% 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. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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