Thick Film Metal Glaze™ Resistor ������������������ ��������������������� ���������������� GF Series ���������������� �������������������� ������������� • Rugged molded jacket • Flame resistant construction ������������������� ���������������������� ����������������������� ��������������������� • Metal Glaze™ thick film element • High temperature soldered termination ���������������������� ������������ Electrical Data IRC Type Flamability Marking Tolerance (±%) T.C. (ppm/°C) IRC Power Rating (watts @ °C) GF-55 GF-07 Flame Resist¹ Flame Resist¹ Stamp Stamp 1 2, 5 50*, 100 100 1/2W @ 70°C 1/2W @ 70°C GF-60 GF-20 Flame Resist¹ Flame Resist¹ Stamp Stamp 1 2, 5 50*, 100 100 3/4W @ 70°C 3/4W @ 70°C GF-3 Flame Resist¹ Stamp 1, 2, 5 200 2W @ 70°C 3W @ 25°C *T.C. of 50 ppm/°C on values of 10 ohms or greater. IRC Type Maximum Voltage Rating IRC Resistance Range (ohms) MIL Resistance Range (ohms) Nominal Size Dimension Code GF-55 GF-07 250 250 0.4 to 2M 0.4 to 2M - 1/4W 1/4W 3 3 GF-60 GF-20 350 350 0.4 to 2M 0.4 to 2M - 1/2W 1/2W 4 4 GF-3 750 1 to 2M - 3W 5 NOTE: ¹Contact factory for details of flame-resistant specification. 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 GF Series Issue October 2008 Sheet 1 of 2 Thick Film Metal Glaze™ Resistor Physical Data LL BL LD BD Dimensions Dim Code Nominal Size Body Length BL Body Diameter BD Lead Length LL Lead Diameter LD Clean Lead 3 1/4 0.250 ± 0.015 (6.4 ± 0.4) 0.090 ± 0.008 (2.3 ± 0.2) 0.150 ± 0.125 (38.1 ± 3.2) 0.025 ± 0.002 (0.64 ± 0.05) 0.310 (7.9) 4 1/2W 0.390 ± 0.010 (9.9 ± 0.3) 0.140 ± 0.008 (3.8 ± 0.2) 0.150 ± 0.125 (38.1 ± 3.2) 0.025 ± 0.002 (0.64 ± 0.05) 0.450 (11.4) 5 3W 0.515 ± 0.010 (13.1 ± 0.3) 0.225 ± 0.008 (5.7 ± 0.2) 0.150 ± 0.125 (38.1 ± 3.2) 0.032 ± 0.002 (0.81 ± 0.05) 0.575 (14.6) Ordering Data Sample Part No. GF - 20 D 1002 F MIL Style GS = Fixed film resistor. High stability Power Rating 07 = 1/2 watt 20 = 3/4 watt 3 = 3 watt T.C. Characteristics D = ±100 ppm/°C C = ±50 ppm/°C Resistance First three digits represent significant figures; fourth digit is number of zero’s. Tolerance F = ±1%, G = ±2%, J = ±5% 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 GF Series Issue October 2008 Sheet 2 of 2