CN201084557Y - A solid tantalum electro-analysis capacitor - Google Patents
A solid tantalum electro-analysis capacitor Download PDFInfo
- Publication number
- CN201084557Y CN201084557Y CNU2007200802775U CN200720080277U CN201084557Y CN 201084557 Y CN201084557 Y CN 201084557Y CN U2007200802775 U CNU2007200802775 U CN U2007200802775U CN 200720080277 U CN200720080277 U CN 200720080277U CN 201084557 Y CN201084557 Y CN 201084557Y
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- tantalum
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Abstract
The utility model relates to a solid tantalum electrolytic capacitor, which comprises a capacitor body that is composed of tantalum core assembly, an insulator, and a metal housing, and an anode lead wire and a cathode lead wire respectively elicited from the anode and the cathode of two ends of the capacitor body, wherein the capacitor body is a flat cuboid, the lead wires are bent at two ends and the bent two ends are parallel each other to form horizontal U-shaped flat double lead wires. By adopting the above structural tantalum electrolytic capacitor, the capacitor body is modified to be flat cuboid, so as to increase surface area of tantalum block, reduce surface contact resistance of product, and have obvious effects on reducing product high frequency ESR value and improving product high frequency property, after the two ends of the lead wires are bent to be parallel flat double lead wires, most generated inductances can be counteracted each other, the frequency range of inductive reactance occurred in the electronic circuitry is prolonged.
Description
Technical field
But the utility model relates to the solid tantalum electrolytic capacitor that the valve metal tantalum is an anode.
Background technology
The negative electrode and the anode lead wire of the body of the cylindrical shape that the solid tantalum electrolytic capacitor structure of metal current encapsulation is made up of tantalum fuse, insulator, metal shell and the axial single cylinder of drawing respectively from the anode and the negative electrode at body two ends are assembled, and are installed on the wiring board by axial anode lead wire and cathode terminal during installation.Because the reasons in structure of product, when operating frequency during at 200～300kHz, induction reactance appears in product, badly influences the range of application of this infrastructure product in the high frequency field.And because the material of manufacturing electric capacity has resistance, the dielectric of electric capacity is lossy, also can produce equivalent serial resistance ESR, when electric capacity being applied an electric current, electric capacity is because self charging, voltage can rise since 0, but because ESR, resistance self can produce a pressure drop, and this has just caused the voltage at capacitor two ends can produce sudden change, reduce the filter effect of electric capacity, in occasions such as oscillating circuits, ESR can cause that also circuit changes, and causes serious consequences such as circuit malfunction even damage on function, so a lot of high-quality electric equipment products wish that all the ESR of capacitor is low more good more.
The utility model content
Goal of the invention of the present utility model is: a kind of solid tantalum electrolytic capacitor with low equivalent serial resistance that can use in the high frequency field is provided.
Goal of the invention of the present utility model realizes by implementing following technical proposals:
A kind of solid tantalum electrolytic capacitor, comprise the capacitor body of forming by tantalum fuse, insulator, metal shell, and the cathode terminal and the anode lead wire of drawing respectively from the anode end face and the negative electrode end face at body two ends, it is characterized in that: the tantalum fuse of capacitor, insulator and metal shell structure are flat cuboid.
The lead-out wire of described anode and negative electrode is a flat pattern, two ends 2-1, the 2-2 of anode lead wire vertically bend and bending end 2-1 and 2-2 parallel to each other, vertical bending with (3-2) in the two ends of cathode terminal (3-1) and bending end (3-1) form the flat parallel negative electrode double end lead-in wire and the anode double end lead-in wire of Contraband shape respectively with (3-2) parallel to each other; Anode double end lead-in wire middle part is connected with the tantalum fuse, and its bending end is vertical with capacitor body anode end face, and negative electrode double end lead-in wire is bonded on the tantalum fuse, and bending end is vertical with capacitor body negative electrode end face.
Adopt the solid tantalum electrolytic capacitor of above structure, because tantalum fuse, insulator and the metal shell structure of capacitor are flat cuboid, increased the surface area of tantalum piece, reduced the surface contacted resistance of product, to reducing product high frequency E SR value, the high frequency characteristics effect of improving product is remarkable, the lead-in wire two ends are bent to behind the parallel flat double lead, the inductance major part that produces can be cancelled out each other, postpone so the frequency range of induction reactance in electronic circuit, occurs, improved the application of product in the high frequency field.
Description of drawings
Fig. 1 is the front view of the utility model tantalum electrolytic capacitor.
Fig. 2 is that the A of Fig. 1 is to cutaway view.
Mark among the figure: 1 is the tantalum fuse, and 2 is anode tap, and 3 is cathode leg, and 4 is metal shell, and 5 is insulator, and 6 is capacitor body
Embodiment
The capacitor body 6 of the flat cuboid that solid tantalum electrolytic capacitor as shown in Figure 1, 2 is made up of the tantalum fuse 1 with flat rectangular shape, insulator 5, metal shell 4 is drawn flat negative electrode double end lead-in wire 3 and the anode double end lead-in wire 2 that is the Contraband shape respectively from the anode end face and the negative electrode end face at body two ends; Two ends 2-1, the 2-2 of anode double end lead-in wire vertically bend and bending end 2-1 and 2-2 parallel to each other; Two ends 3-1, the 3-2 of negative electrode double end lead-in wire vertically bend and bending end 3-1 and 3-2 parallel to each other, anode double end lead-in wire middle part is connected with the tantalum fuse, its bending end is vertical with capacitor body anode end face, negative electrode double end lead-in wire is bonded on the tantalum fuse, and bending end is vertical with capacitor body negative electrode end face.
Adopting the capacity of the utility model embodiment 1 structure is the solid tantalum electrolytic capacitor of 100 μ F, after the capacitor body structure changes flat cuboid into by cylinder, when the 100KHz frequency, the ESR value drops to 20m Ω～50m Ω by original 150m Ω～200m Ω, and the reduction effect of ESR value is obvious; Frequency 300KHz～the 500KHz than before that induction reactance occurs postpones till 1MHz～2MHz, has widened the frequency response range of solid tantalum electrolytic capacitor in electronic circuit greatly.
Claims (2)
1. solid tantalum electrolytic capacitor, comprise the capacitor body of forming by tantalum fuse (1), insulator (5), metal shell (6), and from cathode terminal 3 and anode lead wire 2 that the anode end face and the negative electrode end face at body two ends are drawn respectively, it is characterized in that: the tantalum fuse (1) of capacitor, insulator (5) and metal shell (4) structure are flat cuboid.
2. solid tantalum electrolytic capacitor as claimed in claim 1, it is characterized in that, the lead-out wire of anode and negative electrode is a flat pattern, the two ends of anode lead wire (2-1), (2-2) vertically bend and bending end (2-1) and (2-2) parallel to each other, vertical bending with (3-2) in the two ends of cathode terminal (3-1) and bending end (3-1) form the flat parallel negative electrode double end lead-in wire and the anode double end lead-in wire of Contraband shape respectively with (3-2) parallel to each other; Anode double end lead-in wire middle part is connected with the tantalum fuse, and its bending end is vertical with capacitor body anode end face, and negative electrode double end lead-in wire is bonded on the negative electrode end face of tantalum fuse, and bending end is vertical with capacitor body negative electrode end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200802775U CN201084557Y (en) | 2007-07-12 | 2007-07-12 | A solid tantalum electro-analysis capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200802775U CN201084557Y (en) | 2007-07-12 | 2007-07-12 | A solid tantalum electro-analysis capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084557Y true CN201084557Y (en) | 2008-07-09 |
Family
ID=39627029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200802775U Expired - Fee Related CN201084557Y (en) | 2007-07-12 | 2007-07-12 | A solid tantalum electro-analysis capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084557Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345139B (en) * | 2007-07-12 | 2011-10-05 | 电子科技大学 | Solid tantalum electrolytic capacitor and manufacturing method thereof |
-
2007
- 2007-07-12 CN CNU2007200802775U patent/CN201084557Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345139B (en) * | 2007-07-12 | 2011-10-05 | 电子科技大学 | Solid tantalum electrolytic capacitor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20100712 |