U.L. Approved Dual Function Fuse Resistors F500 Series • • • • • • Affords protection for semiconductor devices Acts as a precision wirewound resistor and a fuse Allows precise control of fusing point and time lag Reduces the number of discrete components required Eliminates unnecessary blowing due to transient conditions Eliminates fire hazard and circuit board damage due to overheated components Electrical Data IRC Style Steady State Resistance Dissipation (ohms) Current (watts) Blow Condition I Current Blow Condition II Dissipation Blow Time (watts) (T max) Current Dissipation (watts) Blow Time (T max) F501 0.2 2.2A 1 10A 20 500ms 25A 125 50ms F502 0.2 2.2A 1 10A 20 300ms 25A 125 30ms F503 0.5 1.4A 1 6A 18 10sec 15A 112 100ms F504 0.5 1.4A 1 6A 18 500ms 15A 112 50ms F505 0.5 1.4A 1 6A 18 50ms 15A 112 10ms F506 1 1.0A 1 4A 16 10sec 10A 100 100ms F507 1 1.0A 1 4A 16 500ms 10A 100 50ms F508 1 1.0A 1 4A 16 50ms 10A 100 10ms F509 2 700ma 1 3A 18 10sec 7A 98 50ms F510* 2 700ma 1 3A 18 200ms 7A 98 50ms F511* 2 700ma 1 3A 18 50ms 7A 98 10ms F512* 5 450ma 1 2A 20 200ms 4.5A 101 50ms F513* 5 400ma 0.8 1.5A 10 50ms 4.0A 80 10ms F514* 5 350ma 0.6 1.0A 5 100ms 1.4A 10 20ms F515* 10 300ma 0.9 1.2A 14 200ms 3.0A 90 10ms F516* 10 300ma 0.9 1.0A 10 100ms 1.3A 17 50ms F517* 10 200ma 0.4 600ma 3.6 100ms 900ma 8 50ms F518* 20 220ma 1 600ma 7.2 10sec 900ma 16 100ms F519* 20 220ma 1 600ma 7.2 100ms 900ma 16 50ms F520* 20 150ma 0.4 350ma 2.4 500ms 450ma 4 50ms F521* 50 140ma 1 400ma 8.0 500ms 600ma 18 50ms F522* 50 130ma 0.8 350ma 6.1 100ms 450ma 10 50ms F523* 50 80ma 0.3 200ma 2.0 200ms 240ma 2.9 50ms F524* 100 100ma 1 250ma 6.2 10sec 300ma 9.0 100ms F525* 100 80ma 0.6 200ma 4.0 200ms 250ma 6.2 50ms F526* 100 60ma 0.4 140ma 2.6 10sec 180ma 3.2 200ms F527* 200 70ma 1 200ma 8.0 10sec 250ma 12.5 100ms F528* 200 60ma 0.8 150ma 4.0 100ms 250ma 12.5 10ms *UL LISTED - Add "S" To Style Description Contact factory for specification limits beyond these listed. General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC’s own data and is considered accurate at time of going to print. Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com A subsidiary of TT electronics plc F500 Series Issue October 2008 Sheet 1 of 2 U.L. Approved Dual Function Fuse Resistors IRC Advanced Film Division Capability Data Resistance Range 0.2Ω to 200Ω Resistance Tolerance 10% STD, 5% and 2% Operating Temperature -55°C to +150°C TCR Construction ±150ppm <1W, ±50ppm, 1W and above Intrinsically safe single fusing element - all welded construction - ceramic bobbin - ceramic shell, air encapsulated. Flameproof construction Various quality assurance data options available, including conditioning and plot of blow time vs. current. Physical Data Lead Length 1.25 Min (31.75mm) 0.140 ± 0.015 (3.6 ± 0.4mm) (Lead Diameter #24 Awg) 0.020” (0.5mmA) 0.400 Max (10.2 mm) Ordering Data Contact factory for ordering information. Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com F500 Series Issue October 2008 Sheet 2 of 2