HVC SERIES quince Waimea aleinrsisisiona! eeeseeeeceeeeeoeeeeeeeaeeeeee electronics att ay a * . * . * sane, PR . . nee ee scene e eee ekene e Continuous voltages up to 3kV e Values up to 100M e Tolerances to +0.5% e Robust thick film construction Electrical Data 1206 2010 2512 Notes Power rating @70C_ _ Watts 0.3 0.5 1 Limiting element voltage Volts 1000 2000 3000 DC or AC peak Resistance range Ohms 100K to 100M Consult factory for out of range values Resistance tolerance % 0.5,1,2,5,10 See table of value ranges TCR ppnvC 100 Ambient temperature range C -55 to +155 Values E24 & E96 preferred Any value to order Thermal Impedance oC 200 | 80 | 70 Value Ranges (Ohms) Tolerance % Size 10 5 2 1 0.5 1206 | 100Kto 100M | 100Kto100M | 100Kto10M | 100Kto 2M N/A 2010 100K to 100M _| 100Kto 100M | 100Kto 10M 100K to 10M N/A 2512 100K to 100M | 100K to 100M 100K to 10M 100K to 10M 100K to 10M Physical Data Dimensions (mm) & Weight (g) L WwW T nom A B Cc Wt. ee 78 1206 | 3.20.2 | 1.640.2 | 0.6 | 0.3640.2 | 1.95min| 0.3540.2 | 0.010 dF Ac a soir) 2010 | 5.140.2 | 2540.2 | 0.7 | 0.4540.2 | 3.70min| 0.4+0.25 | 0.035 os ot ae Wrap-araund terminations 2512 | 6.540.2 | 3,240.2 0.7 0.4540.2 | 5.00 min} 0.440.2 | 0.055 een too) General Note IRC reserves the right to make changes In product specification without notice or liability. All information is subject to IRCs own data and is considered accurate at time of going to print. WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road Boone, North Carolina 28607-1860 Tel: 828-264-8861 Fax: 828-264-8866 www.irctt.com OIRC A subsidiary of TT electronics pic Issue Preliminary o701od %. Pee e eee eee OEP eee eee eee eane Construction Resistive thick film material, overglaze and organic protection are screen printed on a 96% alumina substrate. The design and laser adjustment of the resistive element optimises the limiting element voltage of the resistor. Terminations The chips are supplied with wrap-around terminations suitable for soldering. Consult factory for alternative termination options. Solderability The terminations have an electroplated nickel barrier and tin-lead solder coating. This ensures excellent leach resistance properties and solderability. Marking The body protection is resistant to all normal cleaning solvents suitable for printed circuits. The chips are not marked and the relevant information on type, value, tolerance date code and quantity are recorded on the reel. Performance Data Maximum Typical Load at rated power: 1000 hours at 70C AR% 0.5 0.25 Shelf life test: 12 months at room temperature AR% ia 0.02 Derating from rated power at 70C Zero at 155C Short term overload: Lesser of 6.25 x rated power or 1.5 x LEV for 2S AR% 0.5 0.1 Dry heat: 1000 hours at 155C AR% 0.5 0.2 Long term damp heat AR% 0.5 0.25 Temperature rapid change AR% 0.25 0.05 Resistance to solder heat AR% 0.25 0.05 Voltage proof Volts 500 Voltage coefficient of resistance ponvV | 1206: -25 1206: -15 2010: -15 2010: -5 2512: -5 2512: -1.5 Application Notes HVC resistors are ideally suited for handling by automatic methods due to their rectangular shape and the small dimensional tolerances. Electrical connection to a ceramic substrate or to a printed circuit board can be made by reflow or wave soldering of wrap-around terminations. Wrap-around terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the HVC can be immersed in the solder bath for 30 seconds at 260C. This enables the resistor to be mounted on one side of a printed circuit board and wire-eaded components applied on the other side. HVC resistors themselves can operate at a maximum temperature of 155C (see performance above). For soldered resistors, the joint temperature should not exceed 110C. This condition is met when the stated power levels at 70C are used. The PCB layout should avoid tracks running between the HVC mounting pads, as this would compromise the LEV. Issue Preliminary WIREWOUND AND FILM TECHNOLOGIES DIVISION 0701 736 Greenway Road Boone, North Carolina 28607-1860 Tel: 828-264-8861 Fax: 828-264-8866 www.irctt.comaatte, eR ROR EOS RR RPT Ree ., " Saanet The LEV stated applies to operation at seatevel pressure and in a non-condensing atmosphere. Voltage derating should be applied if low pressure or high humidity may be encountered. The termination clearance dimension (B) should be used in conjunction with the creepage limit applicable to the circuit application in order to determine the derated LEV. PACKAGING HVC Resistors are supplied taped and reeled as per IEC 286-3. MARKING 33 10 wr +03 1 | +01 | 20.05 | +40.1 1.5 13 12 2512 Ordering Procedure Specify type reference etc. as shown in this example of HVC2512 at 47 1%: 212 - = 4M Fol Type Size | Resistance value (IEC62 Code) Spare 0.5% 1% 2% 5% 10% AISIO|TM0 WIREWOUND AND FILM TECHNOLOGIES DIVISION lesue Protiminary 736 Greenway Road Boone, North Carolina 28607-1860 Tel: 828-264-8861 Fax: 828-264-8866 www.irctt.com