1625879-3 TE Connectivity

Flame-Proof Fusible Resistors Type FRN Series Type FRN Series Characteristics - Electrical FRN25 FRN50S FRN100S FRN200S FRN300S Rated Power @ 70C (W) 0.25 0.5 1 2 3 Resistance Range (Ohms) Min R12 R12 R33 R30 R30 Max 12K 12K 10K 1K0 1K0 Tolerance (%) 5 Code letter J Temperature Coefficient (ppm/C) 350 200 (-30C to +150C) Selection Series E12 Limiting Element Voltage 250 250 300 300 300 The resistive element comprises a Max Permitted Element Voltage 250 250 300 350 350 resistive film sputtered onto a ceramic Max Overload Voltage 500 500 600 600 600 element. Metal end caps are force Max Intermittent Overload Voltage 500 500 600 600 600 fitted to the element prior to spiralling. Max Withstand Voltage After Fusing 300 350 450 450 450 Tinned copper lead wires are welded to Operating Temp. Range (C) -55 to +155 the end caps and the components are Climatic Category 55/155/56 then coated with four layers of a flame- Insulation Resistance 1000M proof cement. All resistors are tested Min Dry (ohms) for value and tolerance. The technology allows the manufacture of custom Dimensions fusible characteristics. Key Features Superior quality resistors with fusing characteristics for overload conditions. Flame-proof during Style L D d Nom l fusing. FRN25 6.3 0.5 2.3 0.3 0.54 25.0 Ideal for use in safety- FRN50S 6.3 0.5 2.3 0.3 0.54 25.0 critical and circuit FRN100S 9.0 0.5 3.2 0.5 0.54 25.0 protection applications. FRN200S 11.0 1.0 4.5 1.0 0.70 25.0 These resistors fuse in FRN300S 15.0 1.0 5.5 1.0 0.80 25.0 less than 60 seconds at 16 times rated power. (See table) Derating Curve - FRN25, FRN50S, FRN100S FRN200S, FRN300S 100 100 80 80 60 60 40 40 20 20 0 0 40 60 70 80 100 120 140 160 20 60 70 100 140 180 220 260 Ambient Temperature (C) Ambient Temperature (C) Literature No. 1773218 Dimensions are shown for Dimensions are in Specifications subject to tycoelectronics.com Issued: 10-08 reference purposes only. millimetres unless change. passives.tycoelectronics.com otherwise specified. Percent Rated Power Percent Rated Power