High Value Surface High Value Surface High Value Surface Welwyn Components Mounted Resistors Welwyn Components Mounted Resistors Mounted Resistors HR Series HR Series HR Series s Custom designs / sizes available Custom designs / sizes available s Custom designs / sizes available s Resistance range to 50G ohms Resistance range to 50G ohms s Resistance range to 50G ohms Terminations available for wire bonding or soldering s Terminations available for wire bonding s TLow voltage coefficient of rerminationsor soldering available for esistancewire bonding or soldering s Low voltage coefficient of resistance s Low voltage coefficient of resistance Electrical Data Electrical Data Power Rating The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by Power Rating voltage considerations only, as shown in the table below. The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by voltage considerations only, as shown in the table below. 0503 0805 1005 1206 Notes Resistance range* ohms 050310M to 20G 0805 1001500M to 50G 1206 NotesMeasured at 10 volts Limiting element voltage volts 50 100 150 200 Resistance range* ohms 10M to 20G 100M to 50G Measured at 10 volts LimitingA elementmbient tvoltagempereature rangvolte s C 50 100 -55 to +15 1055 200 TCR ppm/C 0 to -2500 0 to -2000 0 to -1500 0 to -1000 Measured at 10 volts Ambient temperature range C -55 to + 155 TCR Resistance tolerance ppm/C %0 to 10M-250 0to 500M:100 to -2000 100M 0to t o1G:5,10 -1500 > 1G 0to t o50G:25, -1000 50 Measured at 10 volts >500M : 25, 50 Resistance tolerance % 10M to 500M:10 100M to 1G:5,10 > 1G to 50G:25, 50 >500M : 25, 50 *Higher values available, consult factory for details *Higher values available, consult factory for details Physical Data Physical Data Dimensions (mm) & Weight (g) Dimensions (mm) & Weight (g) Wrap around Planar Style L W T max. A B C Wt T Wrap around Planar C A B C Style 0503 L 1.25 0.2W 0.63 0.1T max5 . 0.5 A Not availablB e C 0.2 0.1Wt 0.005 T L W A C A T B Wrap-around terminations 0805 2.0 0.3 1.25 0.2 0.6 0.3 0.15 0.9min 0.3 0.1 0.009 C 0503 1.25 0.2 0.63 0.15 0.5 Not available 0.2 0.1 0.005 L (3 faces) A W T L Wrap-around terminations W 0805 10052.0 0.2.53 1.250.3 0.1.252 0.0.2 6 0.0.37 0.15 Not0.9mi availabln e 0.3 0.0.41 0.10.0095 0.015 Alternative styles for (3 faces) surface mounting Planar terminations L W 1206 3.2 0.4 1.6 0.2 0.7 0.4 0.2 1.7min 0.4 0.15 0.020 resistors 1005 2.5 0.3 1.25 0.2 0.7 Not available 0.4 0.15 0.015 Alternative styles for surface mounting Planar terminations 1206 3.2 0.4 1.6 0.2 0.7 0.4 0.2 1.7min 0.4 0.15 0.020 resistors This dimension determines the number of conductors which may pass under the surface mounted device. This dimension determines the number of conductors which may pass under the surface mounted device. Construction Terminations The resistor material is screen printed onto a 96% alumina Planar (or single-sided) termination is gold and suitable for Construction Terminations substrate and covered with a protection comprising of a glaze wire-bonding wrap around is suitable for soldering. The resistor material is screen printed onto a 96% alumina Planar (or single-sided) termination is gold and suitable for followed by an organic coating. This construction gives an substrate and covered with a protection comprising of a glaze wire-bonding wrap around is suitable for soldering. insulated device. Solderability followed by an organic coating. This construction gives an Wrap-around terminations on HR resistors have good leach insulated device. Solderability Marking resistance properties. They will withstand immersion in solder Wrap-around terminations on HR resistors have good leach All relevant information is recorded on the primary package at 260C for 30 seconds. Marking resistance properties. They will withstand immersion in solder or reel. All relevant information is recorded on the primary package at 260C for 30 seconds. or reel. General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. General Note General NoteAll information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of Welwyn Components reserves the right to make changes in product specification without notice or liability. TT electronics plc TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK All information is subject to TT electronics own data and is considered accurate at time of going to print. TT electronics plc www.bitechnologies.com www.irctt.com www.welwyn-tt.com Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com Issue B 03.02 Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK TT electrTelephone: +44onics plc (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com Issue B 03.02 20 11. 11 20High Value Surface High Value Surface Mounted Resistors Mounted Resistors HR Series Welwyn Components HR Series Performance Data aMxi T py ical Load at rated power: 1000 hours at 70C 2 1 Overload %R 1 Shelf life: 12 months at room temperature 2 1 Temperature rapid change %R 1 Change on Wave Soldering %R 1 oV ltage pr oo f ov lts : to : Voltage coefficient of resistance (10V - 25V) %/V 1 5 Application Notes Mounting Packaging This chip resistor is ideally suited for handling by automatic Resistor chips are supplied taped and reeled on standard 8mm tape to IEC 286-3. methods due to its rectangular shape and the small dimensional tolerances. Electrical connection to a ceramic Quantity per reel 3000 max. substrate or to a printed circuit board can be made by wire Planar Terminations bonding to planar terminations or by reflow soldering of wrap-around terminations. The F terminations provide good Resistor chips are supplied in waffle packs. leach properties and ensure reliable contact. Due to the robust construction the resistor chip 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 and wire- leaded components on the other side. The resistor must be kept dry during use to avoid leakage. The presence of moisture will not damage the resistor in any way. Ordering Proced ure Example: HR1206 with solderable wraparound terminations at 10 gigohms and 50% tolerance on a reel of up to 3000 pieces - H R 1 2 0 6 F 1 0 G Y I Type Size Termination F Solderable wraparound 0805, 1206 only G Gold pad planar All sizes Value (use IEC62 code) Tolerance (use IEC62 code) J 5% 5 25% K 10% Y 50% Packing Tape 0805F, 1206F Up to 3000/reel I Standard Waffle G Termination General Note Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK TT electronics reserves the right to make changes in product specification without notice or liability. Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com Issue B 03.02 All information is subject to TT electronics own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com 21 TT electronics plc 11. 11 0.0 2.0 6021 3.0 8.0 5001 4.0 5080 005 6021 5080 001 3050 5.0 3.0 %R 2.0 %R mum