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www.lowESR.com
What is ESR? ESR is an abbreviation for Equivalent Series
Resistance, the characteristic representing the sum of resistive (ohmic) losses within a capacitor.
While ESR is undesirable, all capacitors exhibit it to some degree. Capacitor manufacturers look to ways to reduce the ESR of the capacitor…
www.lowESR.com
Low ESR Capacitor Applications
DSL equipmentComputers ServersNetworking Routers Telecom equipment, Semiconductor etching equipFM transmittersPower SuppliesBroadbandBallastA/V remote controlSlot machines, gaming tables
Controller boardsEthernetVideo InterfacesServersLaser printersOptical Networking Storage Area Network EquipmentMotherboards, routers, servers, mini PCSmoke detectors, alarms, sensorsLighting Ballast
www.lowESR.com
Low ESR Electrolytic Capacitors
Aluminum- Liquid Electrolyte: NACZ, NACZF, NACX
V-Chip = larger size SMT Lowest Cost of SMT types Highest capacitance values (to 6800uF) Highest ESR of the low ESR family Wears out (electrolyte dissipation) under high temperature operation
- Crosses to:
» Elna “RVH” series » Nichicon “UWF” & “UUJ” series » Panasonic “FC” series » Sanyo “CV-GV”
www.lowESR.com
Low ESR Electrolytic Capacitors
Aluminum
Hybrid Electrolyte: NSPE V-Chip 22uF ~ 820uF Moderate Cost 0.025 100KHz ESR BEST VALUE OF LOW ESR FAMILY Wears out (electrolyte dissipation) under high temperature operation
www.lowESR.com
Low ESR Electrolytic Capacitors
AluminumSolid* Electrolyte: NSP Small Flat Chip (D- 7343 case) 2.2uF ~ 270uF 0.010ohm 100KHz ESR Specs BEST LONG TERM PERFORMANCE OF LOW ESR FAMILY Solid Electrolyte does not exhibit WEAR-OUT LOWEST ESR & HIGHEST COST
NSP Crosses to:Panasonic - “CD” series ( same specs & sizes)Kemet – “A700” series
Solid* = “OS-CON = Organic Semi-Conductor ”, “Polymer Aluminum”, “Solid Aluminum”(all terms for the same thing)
www.lowESR.com
Low ESR Electrolytic Capacitors
Aluminum
Solid* Electrolyte: NSPZ V-Chip 15uF ~ 680uF 0.020 ohm 100KHz ESR BEST LONG TERM PERFORMANCE OF LOW ESR FAMILY Solid Electrolyte does not exhibit WEAR-OUT LOW ESR & HIGH COST
NSPZ Crosses to:Sanyo “SV” & “SVP” & “SVQP” series “OS-CON”Nichicon “NA” seriesVishay “94SV”, “OS-CON”United Chemi-Con - “PX” series
Solid* = “OS-CON = Organic Semi-Conductor ”, “Polymer Aluminum”, “Solid Aluminum”(all terms for the same thing)
www.lowESR.com
Low ESR Electrolytic Capacitors
Tantalum Polymer* Cathode: NTP
Small Flat Chip (A ~ D sizes) 3.3uF ~ 470uF 0.025 ohm 100KHz ESR Lowest ESR Tantalum type Polymer Cathode suppressions combustion = improved safety- HIGHEST COST of tantalum typesNSP Crosses to:NEC - “PSL” & “PSN” series ( same specs & sizes)Kemet – “KO-Cap” - “T520” seriesSanyo- “POS-Cap” – “TPA”, “TPB”, “TPC” seriesNichicon- “F55” series
* Also referred to “Polymer Tantalum”, “KO-CAP” or “POS-CAP” (all terms for the same thing)
www.lowESR.com
Low ESR Electrolytic Capacitors
Tantalum
Standard Cathode (MnO2): NTC-L Small Flat Chip (B ~ D sizes) 10uF ~ 330uF 0.10 ~ 0.70ohm 100KHz ESR Specs Solid Electrolyte does not exhibit WEAR-OUT Lower costly than NTP (polymer cathode) series
NTC-L Crosses to: » AVX “TPS” series
» Cornell Dubilier “SHJL” series
» Kemet “T494” & “T495” series
» NEC “SVZ”
» Vishay – Sprague “593D”
www.lowESR.com
Low ESR Electrolytic Capacitors
Aluminum
Liquid Electrolyte: NRSZ, NRSX, NRSY, NRSJ, NRSG & NRSX Radial can = largest sizes Lowest Cost (up to ½ the cost of SMT versions) Highest capacitance values (to 15,000uF) Lowest ESR (to 0.012 ohm) of leaded type products Wears-out (electrolyte dissipation) under high temperature operation
www.lowESR.com
Series Cross ReferencePOLYMER CATHODE
TANTALUM
Plastic Molded Plastic Molded
SMT Flat Chip SMT Flat Chip
ELNA PV - - - - - - - - - - - - - - -
FUJ ITSU - - - - - - FP-RE - - - - - - - - -
KEMET - - - AO-CAP - - - - - - - - - KO-CAP
NIC Components
Corp. NICHICON NA - - - SEP - - - - - - F55
PANASONIC SPV SP - - - - - - - - - - - -
SANYO SVP - - - SEP - - - - - - POSCAP
UCC- NIPPON CHEMICON PXA PT PS - - - - - - - - -
NSPER NTPNSPZ NSP NSPZR NSPE
SOLID ALUMINUM
HYBRID ELECTROLYTE
ALUMINUM
TYPE: SMT V-
ChipRadial Lead
SMT V-Chip Radial Lead