Lower Range High Welwyn Components Voltage Chip Resistors LHVC Series Superior voltage performance over commercial range chips 0603 to 2512 sizes Resistance 50K to 10M RoHS compliant Electrical Data LHVC0603 LHVC0805 LHVC1206 LHVC2010 LHVC2512 Power rating at 70C watts 0.1 0.125 0.25 0.5 1 Resistance range ohms 100K to 10M 50K to 10M Limiting element voltage dc / ac pk volts 200 400 500 1600 2000 5s Overload voltage dc / ac pk volts 400 800 1000 2500 3000 Dielectric withstand voltage dc / ac pk volts 300 500 TCR ppm/C 200 Resistance tolerance % 1, 5 Standard values 5%: E24, 1%: E96 Ambient temperature range C -55 to +155 Physical Data Dimensions (mm) and weight (mg) Wt. Type L W T D1 D2 nom. LHVC0603 1.6 0.1 0.8 +0.15/-0.1 0.45 0.1 0.3 0.2 0.3 0.2 2.1 LHVC0805 2 0.15 1.25 +0.15/-0.1 0.55 0.1 0.4 0.2 0.4 0.2 4.7 8.5 LHVC1206 3.1 0.15 1.55 +0.15/-0.1 0.55 0.1 0.45 0.2 0.45 0.2 LHVC2010 5 0.1 2.5 +0.15/-0.1 0.55 0.1 0.6 0.25 0.5 0.3 25 LHVC2512 6.35 +0.1 3.2 +0.15/-0.1 0.55 0.1 0.6 0.25 0.5 0.2 44 Construction Pd/Ag terminations are applied to the top and bottom of an alumina substrate. A resistive element is printed between the top face conductors, which is then adjusted to value and protected. A wraparound conductor is applied to join the top and bottom sides. The terminations are electroplated with a Ni barrier layer prior to plating with a Sn nish. Marking Where space allows, LHVC resistors are marked with value in three or four characters. The coding is two digits for E24 or three digits for E96 fol- lowed by one multiplier expressing the number of zeros. For E96 values on LHVC0603 standard EIA-96 codes are used, consisting of a 2 digit value code and one letter multiplier code. Solvent Resistance The body protection and marking are resistant to all normal industrial solvents suitable for printed circuits. General Note Welwyn Components reserves the right to make changes in product specication without notice or liability. A subsidiary of All information is subject to Welwyns own data and is considered accurate at time of going to print. TT electronics plc Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0)1670 822181 Facsimile: +44 (0)1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 07. 11Lower Range High Voltage Chip Resistors Welwyn Components LHVC Series Flammability The resistor will not burn or emit incandescent particles under any condition of applied temperature or overload. Solderability 95% min coverage (MIL-STD 202F / 208H, 235C 2 secs) Mounting (nominal dimensions in mm) Type A B C LHVC0603 0.7 0.7 1.0 A LHVC0805 1.0 0.8 1.50 C LHVC1206 2.0 1.0 1.75 LHVC2010 4.0 1.2 2.75 B LHVC2512 5.3 1.2 3.5 Performance Data Maximum Power de-rating graph Load at rated power R% 3 Proportion ofPr (1000hrs cyclic load at 70C) 100% De-rating from rated power at 70C See Graph Short term overload R% 2 (6.25 x rated power for 5s) Temperature rapid change R% 1% tolerance: 0.5, (-55 / +155C, 5 cycles) 5% tolerance: 1 0% T (C) Damp heat steady state R% 3 -55 70 155 Insulation resistance R% >1000M Packaging The standard packing for LHVC0603, 0805 and 1206 is in 8mm wide paper tape, for LHVC2010 is in 12mm widepaper tape and for LHVC2512 is in 12mm wide plastic tape. This is wound on a reel of 178mm diameter. Ordering Procedure Example: LHVC0805 at 100 kilohms and 1% tolerance on reel of 5000 pieces: L H V C 0 8 0 5 1 0 0 K F T 5 Type Value (use IEC62 code) Tolerance (use IEC62 code) F 1% J 5% Packing T5 0603 / 0805 / 1206 5,000 / reel T4 Standard T4 2010 / 2512 4,000 / reel Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0)1670 822181 Facsimile: +44 (0)1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 07. 11