LR2F390K TE Connectivity

Metal Film Fixed Resistors Type LR Series Key Features Superior quality metal film resistors with 1% tolerance and temperature coefficients down to 50 ppm. 3 case sizes are available in 0.25, 0.6, 0.75W. The LR1L series is a low ohmic value range from 0.1 to 0.82 ohm. Ideally suited where low resistance and small size are required. Metal film resistors have excellent stability under load and severe environmental conditions. They exhibit very low noise current and voltage coefficients. The resistive element comprises a thin film of nickel-chrome alloy evaporated onto a high They are available in a thermal conductivity ceramic element. Metal end caps are force fitted to the element prior wide range of resistance to spiralling to value. Tinned copper lead wires are welded to the end caps and the values and are suitable components are then coated. One coat of phenolic resin is followed by three coats of for general purpose and precision epoxy resin. All resistors are tested for value and tolerance. applications. Characteristics - Electrical LR0204 LR1L LR1 LR2 LR100 LR200 Rated Power 70C (W) 0.25 0.5 0.6 0.75 1 2 Resistance Range (Ohms) Min 1R0 10R R10 1R0 10R 1M1 1R0 10R 10R Max 9R1 1M0 R82 9R1 1M0 10M 1M0 1M0 1M0 Tolerance (%) 11 5 0.51 1 22 0.51 21 2 1 5 1 2 1 5 1 5 0.5 1 5 Code Letter FF J DFF GG DFF GG F J F G F J F J DF J Temp. Coefficient (ppm/C) 100 100 200 100 50 100 100 25/50/100 25/50/100 Selection Series E24 E24 E12 E24 E24 E24 E24 E24 E24 On Request E96 E96 E96 E96 E96 Limiting Element Voltage 200 350 350 350 500 500 Max Permitted Element Voltage 200 350 350 350 500 500 Max Overload Voltage 400 500 700 700 1000 1000 Max Intermittent Overload Voltage 500 750 750 750 1000 1000 Operating Temp. Range (C) -55 to +155 Climatic Category 55/155/56 Dielectric Strength (V) 500 700 700 700 700 700 Insulation Resistance 1000 Min Dry (Mohms) 1773241 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change.Metal Film Fixed Resistors Type LR Series Dimensions Style L* D d Nom l LR0204 3.5 +/-0.2 2.0 max 0.45 28 +/-3.0 LR1 6.2 +/-0.5 2.3 +/-0.2 0.55 28 +/-3.0 LR1L 6.2 +/-0.5 2.3 +/-0.2 0.55 28 +/-3.0 LR2 9.7 +/-0.3 3.5 +/-0.2 0.55 28 +/-3.0 LR100 12.0 max 5.0 max 0.7 28 +/-3.0 LR200 12.0 max 5.5 max 0.7 28 +/-3.0 * Length is measured in accordance with IEC 294. Power Derating Curve 100 80 60 40 20 0 0 20 40 60 70 80 100 120 125 Ambient Temperature (C) Surface Temperature Rise Vs Load 100 LR1L LR1 LR2 80 60 LR0204 40 20 0 0 0 0.2 0.25 0.4 0.6 0.75 Power Dissipation (W) 1773241 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change. Rated Power (%) Temperature Rise above Ambient (C)