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TL Series

TL Series
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• Semiconductor Balancing • Frequency Converters • Snubber • In-Rush Current Limiter • Bleeder Resistor • Power Switching • Voltage Dividers • Very low inductance • Low profile design • In-Line Mounting Profile • 1/4” Quick connect terminals • Consult factory for common, isolated, or special multiple tap options. TL Series Modular Heat Sinkable Thick Film Power The TL Series add heat sinkable options to the thick film resistor family. The resistor element is packaged with plastic insulators, and quick-connect terminals in a symmetrical aluminum profile for easy heat sink mounting. Special tapped configurations are offered to reduce on board component count. Efficient thermal packaging provides improved heat conduction to the heat sink. Self-insulating package design increases voltage withstanding characteristics when compared to traditional aluminum housings. The in line mounting profile makes the TL Series easily adaptable to most heat sink systems. Thermal compound is always recommended when heat sinking. SERIES SPECIFICATIONS Thermal Resistance Ultra* Std** Nominal Surge Load Max. Voltage Ohm Ultra Std. Series Wattage Wattage Power (10 sec.) between terminals Range (10% tol.) (3%-5% tol.) TL54 35 27 18 72 1000 0.3Q - 1MQ 1.26 1.67 * For properly heat sinked, untrimmed resistors - see chart ** For properly heat sinked, trimmed resistors - see chart t Power Ratings are theoretical. Consult Factory for details. Operating voltage 1200 VAC Dielectric Withstanding Voltage 2500 VAC THIS PRODUCT IS Resistive Element Thick Film on Alumina _ | 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. Housing Aluminum Insulators Glass reinforced high temperature Valox® Terminals Tinned brass Power Range 27 - 275 watts Resistance Range 0.3Q - 4MQ Tolerance Ultra Power (U Style): ±10% std. Standard Power: ±10% std.; 5% and 1% available Temperature Coefficient ±250 PPM Test Voltage for 1 Minute 6000 VDC/2500 VAC Working Voltage 1200 VAC External Creeping Distance 12mm Temperature Limits -40°C to +125°C Insulation >1002 MQ/500V Air Distance, Terminal to Ground 7mm Inductance 50-100 nH (continued)

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POWER RATINGS Maximum and nominal power ratings for Ultra Power and Standard Power resistors TL54 TL104 TL71 Size Tolerance Power Ohms Center tap U = ultra R500 = 0.50 (optional) (optional) 10R0 = 10.° 1K00 = 1,000 1M00 = 1,000,000 Standard part numbers Part No. Prefix > Suffix V Part No. Prefix > Suffix Consult factory for multiple tap options in common, isolated, and special configurations. ✓ = Standard values fr = Non-standard values subject to minimum handling charge per item

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