WIRE WOUND RESISTORS SILICONE COATED TYPE TM HIR Flame Retardant Silicone Coating SERIES Nickel - Plated Terminations HI POWER Silicone Coated Wire Wound Resistors Industrial / Professional Applications Alloy Resistance Wire, wound On Ceramic Substrate Highly stable 10 W to 400 Watts R 25 to 100 K Useful for inexpensively dissipating large amounts of power in DC or low frequency AC circuits. APPLICABLE STANDARDS JSS - 50402 (Pattern RFHT -2), IS - 8909 (Type FRP4) IEC - Pub 266 and Pub 266A [Type - 2E] MIL - R 26, Char V or Char U (depending on resistance tolerance) W Id H PHYSICAL CONFIGURATION d L HTR TYPE R-10A R-10B R-15A R-15B R-20A R-20B R-25A R-25B R-40A R-40B R-50A R-50B R-60A R-60B POWER RATING at 70C 10W 10W 15W 15W 20W 20W 25W 25W 40W 40W 50W 50W 60W 60W DIMENSIONS (mm) L +3 D +2 d +1 27.0 27.0 40.0 40.0 60.0 60.0 75.0 75.0 75.0 75.0 100.0 100.0 115.0 115.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 26.0 26.0 26.0 26.0 26.0 26.0 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 14.3 14.3 14.3 14.3 14.3 14.3 Id H W +0.35 +0.3 [min] 4.75 1.4 5.0 3.0 4.75 1.4 5.0 3.0 4.75 1.4 5.0 3.0 4.75 1.4 5.0 3.0 4.75 1.4 5.0 3.0 4.75 1.4 5.0 3.0 6.35 1.65 8.0 4.3 6.35 7.0 6.35 7.0 6.35 7.0 6.35 7.0 6.35 7.0 6.35 7.0 7.0 8.0 D MOUNTING HARDWARE AVAILABLE 101/301 101/301 101/301 101/301 101/301 101/301 101/301 101/301 102/303 102/303 102/303 102/303 102/303 102/303 RESISTANCE RANGE min max R25 R25 1R0 1R0 1R6 1R6 2R0 2R0 3R9 3R9 5R5 5R5 6R1 6R1 1K0 1K0 3K0 3K0 5K0 5K0 10K 10K 15K 15K 20K 20K 25K 25K D-Dimensions given are indicative and could exceed tolerances given depending on resistance value being wound. HIR WIRE WOUND RESISTORS SILICONE COATED TYPE TM PHYSICAL CONFIGURATION W Id H d L HTR TYPE R-80A R-80B R-100A R-100B R-120A R-120B R-140A R-140B R-200A R-200B R-300A R-300B R-400A R-400B POWER RATING at 70C 80W 80W 100W 100W 120W 120W 140W 140W 200W 200W 300W 300W 400W 400W D DIMENSIONS (mm) L +3 D +2 d +1 130.0 130.0 150.0 150.0 165.0 165.0 200.0 200.0 250.0 250.0 250.0 250.0 330.0 330.0 26.0 26.0 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 45.0 45.0 45.0 45.0 14.3 14.3 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 24.0 24.0 24.0 24.0 MOUNTING RESISTANCE HARDWARE RANGE Id H W AVAILABLE min max +0.35 +0.3 [min] 6.35 8.0 6.35 8.0 6.35 8.0 6.35 8.0 6.35 8.0 6.35 8.0 6.35 8.0 1.65 4.3 1.65 4.3 1.65 4.3 1.65 4.3 1.65 4.3 1.65 4.3 1.65 4.3 7.0 8.0 7.0 8.0 7.0 8.0 7.0 8.0 7.0 8.0 7.0 8.0 7.0 8.0 102/303 102/303 103/303 103/303 103/303 103/303 103/303 103/303 103/303 103/303 104/304 104/304 104/304 104/304 6R8 6R8 11R 11R 12R 12R 15R 15R 20R 20R 26R 26R 36R 36R 35K 35K 40K 40K 47K 47K 56K 56K 68K 68K 75K 75K 100K 100K D-Dimensions given are indicative and could exceed tolerances given depending on resistance value being wound. * Resistor types suffixed with `A' are compatible with Amp F 187 connectors or Amp 250 connectors. MOUNTING SPECIFICATIONS HORIZONTAL THRU-BOLT VERTICAL THRU-BOLT SCREW CERAMIC CENTERING WASHER B Y Core Length (L) Plus `X' H 1.3mm (max) Z C LOCKWASHER BRACKET TYPE MOUNTING Y Z H C B SLOT +1.0mm +2mm +2mm +1.0mm +2mm +2mm 101 12.2 21.83 25.4 5.5 x 8.5 19.05 34.92 102 19.5 24.50 32.75 5.5 x 11.11 19.50 45.5 103 31.5 30.0 35.0 7.1 x 11.11 22.22 53.98 104 48.0 31.5 56.88 7.1 x 11.11 23.22 82.0 NUT 9.2mm (min) BRACKET X (APPROXIMATE) TYPE (mm) 301 303 304 11.5 15.0 16.0 HIR WIRE WOUND RESISTORS SILICONE COATED TYPE TM ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA Performance Requirements Resistance tolerance + 10% [K]; + 5% [J], +2%[G], +1%[F] Rated ambient temperature at 70C full power dissipation [ see derating curve] Di-electric withstanding voltage Max R+[1%+R05] Insulation resistance >1000 M Temperature co-efficient + 100 ppm/ C [For low values TCR will be higher] Short time overload Max R+[ 2%+R05] Moisture resistance Max R+ [5%+R05] Load life Max R+ [<5%+R05] Notes : DERATING CURVE Rated dissipation [%] Test 100 Char V 40 0 Char U 25 70 175 225 275 350 Ambient temperature [C] 1) Resistance values below and above the shown resistance range are possible on request. 2) Non-inductive types in this series are possible. 3) Dimensions given are to be used as a guide only, they can be varied to a certain extent due to technical reasons. For example, larger terminals may be used for very low values. TYPICAL APPLICATIONS (1) Grid resistor (2) Voltage dropping resistor (3) Bias supply resistor (4) High voltage bleeder resistor in power supplies (5) Voltage divider networks (6) Filament dropping resistor (7) Load resistor (8) Shunt resistor. ORDERING INFORMATION HIR R20A 10R J 101 or 301 TYPE OF MOUNTING HARDWARE TOLERANCE RESISTANCE VALUE HTR TYPE SERIES Note : In case non-inductive type is required, please pre-fix HTR type with 'N' e.g. NR-20A The Words - "Applicable Standards" do not necessarily signify certification to that standard, however the tests mentioned are carried out on the broad based guidelines set out in these standards.