PHVD TTELEC | Alldatasheet

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Voltage ratings 10 to 40kV Non-inductive, non-magnetic design Ratio tolerance down to 0.1% TCR and tracking down to 25ppm/°C VCR down to -0.05ppm/V Custom design service available RoHS compliant Precision High Voltage Divider Resistors PHVD Series

  • Voltage ratings 10 to 40kV
  • Non-inductive, non-magnetic design
  • Ratio tolerance down to 0.1%
  • TCR and tracking down to 25ppm/°C
  • VCR down to -0.05ppm/V
  • Custom design service available
  • RoHS compliant Electrical Data PHVD10 PHVD15 PHVD20 PHVD30 PHVD40 Limiting element voltage in air kV 10 15 20 30 40 Limiting element voltage in oil* kV 20 30 40 60 80 Resistance value ohms 1K – 7G 1K – 10G 1K – 20G 1K – 30G 1K – 40G Resistance tolerance % 2.5 x Ratio Tolerance 2.5 x Tracking TCR 25, 50 Ratio tolerance % TCR (25°C to 75°C) ppm/°C Tracking TCR (25°C to 75°C) ppm/°C Standard values E24 preferred Ambient temperature range °C -55 to +175 Insulation resistance at 500V ohms >10G Dielectric strength of insulation volts >1000 Physical Data Dimensions in mm, weight in g Type L (±0.5) H (±0.5) T (Max) P (±0.5) (±0.5) Lead Length Lead Dia. Wt. nom 30 ±5 0.8 ±0.05 6.52 General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn’s own test data and is considered accurate at time of print. © Welwyn C omponents L imited Welwyn Electronics Park, Bedlington, Northumberland, NE22 7AA, England. Tel: 01670 822181 Fax: 01670 829465 Web: www.welwyn-tt.com 07.11 Construction Termination conductors and ruthenium oxide resistive material are printed in a non-inductive pattern onto the surface of a 96% alumina substrate. A screen-printed protection is then applied and terminal wires are then attached. Terminations The termination wires are tin coated copper. Marking Type reference, resistance value and tolerance are legend marked. The resistance value code conforms to IEC 62. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. Welwyn Components Make Possible Resistors 07.14 General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. © TT Electronics plc www.ttelectronicsresistors.com All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2)

Precision High Voltage Divider Resistors P HVD S eries Performance Data Maximum Typical Load at rated power: 1000 hours at 25°C ∆R % 0.25 0.1 Overload: 1.5 x rated power not exceeding LE V for 5 s econds ∆R% 0.25 0.1 Moisture resistance: MIL S td. 202, method 106 ∆R% 0.25 0.1 T hermal shock: MIL S td. 202, method 107, condition C ∆R % 0.2 0.1 Type Typical VCR (ppm/V) PHVD10 <500M: -0.35 500 M to 7G 0: -0.9 PHVD15 <1G 0: -0.2 1G 0 to 10G : -0.4 PHVD20 <1G 0: -0.1 1G 0 to 20G : -0.3 PHVD30 <1.5G : -0.07 1 .5G to 30G : -0.2 PHVD40 <2G 0: -0.05 2 G 0 to 40G : -0.15 Application Notes Due to the high voltage, which can appear between the terminations and any adjacent metal part, resistors should be mounted at an adequate distance from other conductors. F or some ultra-high voltage applications it is required to immerse the components in oil or SF 6 gas or pot them in void-free silicone compound to reduce corona or surface tracking. T he printed protection is suitable for these applications. T he divider consists of high value R 1 and low value R 2. The voltage division ratio of the divider is given by R atio = R 2 / (R 1 + R 2). Ordering Procedure E xample: P HVD15 for a voltage ratio of 1:1000, with R 1 = 99.9 megohms and R 2 = 100 kilohms (total R 1 + R 2 = 100 megohms) at 25ppm/°C tracking TCR and 0.5% ratio tolerance P H V D 1 5 D – 1 0 0 M / 1 0 0 K D T ype S ize T CR T racking C 50ppm/°C D 25ppm/°C T otal Value R 1 + R 2 (use I E C 62 code) Low Value R 2 (use I E C 62 code) T olerance R atio C 0.25% F 1% B 0.1% D 0.5% P acking no code required B ulk P ack General Note W elwyn C omponents res erves the right to make changes in product s pecification without notice or liability. 07.11 All information is s ubject to W elwyn’s own tes t data and is cons idered acc urate at time of print. ©Welwyn C omponents L imited W elwyn E lectronics P ark, B edlington, Northumberland, NE 22 7AA, E ngland. T el: 016 70 82218 1 F ax: 01 670 8294 65 W eb: www.welwyn-tt.com Derating Curve 100 120 0 25 50 75 100 125 150 175 200 Ambient Temperature (°C) Proportion of Pr (%) Make Possible 07.14 General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. © TT Electronics plc www.ttelectronicsresistors.com