NPXI series – X2 Safety Film Capacitors Stability in capacitive power supply applications

1. NPXI Series of X2 Class Polypropylene Film Capacitors NPXI series – X2 Safety Film Capacitors Stability in capacitive power supply applications NIC Components Corp, a leading global supplier of electronic components, today introduced expanded offering of radial leaded high performance film capacitors, with the addition of NPXI series of X2 class Safety Capacitors. NPXI series is offered in two constructions; internal series and mono constructions. Both constructions address corona discharge issues, and both are upgrades from standard construction film capacitors. The NPXI series is intended for use in voltage dropper capacitive power supplies applications with connection in series with the AC mains, where long lifetime capacitance value stability is a key requirement. Typical applications include low power and low cost power supplies, such as used in smart metering and LED driver applications. Capacitance values range from 0.01uF to 10uF with voltage ratings of 300VAC over -40ᵒC to +110ᵒC operating temperature range. NPXI series utilizes low loss (DF <0.01%) metallized polypropylene film with non-inductive & self-healing wound element construction, for stability under VAC operation, temperature and safe end of life failure mode. NPXI series meets IEC 60068-1 climatic category; damp heat, steady state 40/110/56 conditions and has safety agency listings with UL, cUL, ENEC, CQC. Molded box type construction meets UL-94V-0 flammability test, and is supported in reduced case sizes, for high density circuit designs. NPXH is RoHS compliant, with Pb-Free finish, is supplied in bulk or tape and box (TB) packaging. Contact NIC Components today for free samples or to review your circuit requirements Contact NIC Components today for free samples or to review your circuit requirements [ tpmg@niccomp.com / www.NICcomp.com ] SPEC: http://www.niccomp.com/catalog/NPXI.pdf Contact NIC technical support to review your requirements: tpmg@niccomp.com Page 1

2. NPXI Series of X2 Class Polypropylene Film Capacitors Wound Metallized Polypropylene Film Safety Capacitors Molded Box Type • Metallized Film Construction: • Self-healing • High capacitance values • Voltage ratings up to 440VAC • Compact & Reduced Case Sizes Standard Construction Page 2

3. NPXI Series of X2 Class Polypropylene Film Capacitors Series & Mono Construction Internal SeriesConstruction NPXI series – Class X2 Safety Capacitors with ‘NPXI…..X2S_F’ part number suffix incorporatesinternalseries constructionprovides improved resistance to corona phenomenon andprovides the best stabilityover time, humidity and VAC voltage operation NPXI series – Class X2 Safety Capacitors with ‘NPXI….. X2M_F’ part number suffix incorporates mono construction utilizing thicker materials to inhibit the corona phenomenon, for good performance, and upgrade from NPX, NPXH series over time, humidity and VAC voltage operation Mono Construction Page 3

4. NPXI Series of X2 Class Polypropylene Film Capacitors Typical Capacitance Change: 85-85 Test (Standard, Monolithic & Series Construction) Test Conditions - Voltage: 240VAC, Temperature: +85°C, Relative Humidity: 85% Best NPXI series – Series Construction has best stability over time under 85-85 load test (240VAC) NPXI…..X2S_F’ part number suffix Better NPX, NPXH series NPXI series – Mono Construction has good performance, and upgrade from NPX, NPXH series NPXI…..X2M_F’ part number suffix Page 4

5. NPXI Series of X2 Class Polypropylene Film Capacitors NPX & NPXH Series Standard – Common Usage ‘X2’ Safety Cap Classification For Use In Across-the-line Applications; from Line (L) to Neutral (N) Function: Suppression of EMI NPXI Series Special Usage: Series Impedance – Voltage Dropper X2capacitor 'connected in series with the mains' to create a capacitive power supply for use in low power applications. A capacitive power supply utilizes a series connected capacitor ‘Cs’ (typically an X2 class safety capacitor) to reduce the AC mains voltage to a lower voltage level. The AC voltage is reduced by the capacitors' impedance in series with the load impedance (aka a 'voltage dropper' power supply) Stability of the capacitance value (and impedance) is key to long term performance. Function: Stable Voltage Drop Low Power Operation: 240VAC Example: At 60Hz, a 1.0uF capacitor has reactance of 2652Ω. The circuit current is limited to 240V/2652Ω = 90 mA  Cannot use NPX & NPXH Series in Series Impedance – Voltage Dropper Application Page 5

6. NPXI Series of X2 Class Polypropylene Film Capacitors Application: Simple transformer-less capacitive power supply BOM: (1) Linear regulator (4) Rectifier diodes (5) Resistors (1) Alum Ecap (1) NPXISeries Cap Rectifier Diodes (4) NRD Series Three-terminal Linear Regulator NPXICapacitor Aluminum Electrolytic Capacitor Many possibilities: NAC__ NRL__ NRS__ NRW__ Page 6

7. NPXI Series of X2 Class Polypropylene Film Capacitors Part Number Suffix: NPXI…..S1F NPXI…..S2F Identify Case Size Multiple Case Sizes 15.0mm LS 22.5mm LS Multiple Case Sizes 22.5mm LS 27.5mm LS Multiple Case Sizes 27.5mm LS 37.5mm LS Page 7

8. NPXI Series of X2 Class Polypropylene Film Capacitors Competitors: Safety capacitor for use 'connected in series with the mains‘, or with internal series connection Page 8

9. NPXI Series of X2 Class Polypropylene Film Capacitors Case size review: 1.0uF Vishay F1772 vs. NPXI105 310VAC / 1.0uF / LS = 22.5mm / LD = 0.8mm / w x h x l = 15.5 x 26.5 x 26.5 max 310VAC / 1.0uF / LS = 27.5mm / LD = 0.8mm / w x h x l = 15.0 x 25.0 x 31.5 max. Page 9

10. NPXI Series of X2 Class Polypropylene Film Capacitors Potential Equipment Applications for NXPI Safety Capacitors • Smart grid metering • Capacitive power supplies • Low current power supplies • Appliances • LED lighting • Relay controls • Industrial equipment • Motor controls & drives • Circuit Types: • AC line power supplies • Voltage dropper circuits • Low cost designs • Transformer less power Page 10