eBay

5 Pack of Low ESR Panasonic FR Range 1000uf 25V Electrolytic Capacitors 5 pack of Panasonic 1000uF 25V aluminum electrolytic capacitors. When carrying out repairs to modern consumer electronic equipment the use of good quality capacitors, like Panasonic, will ensure a long lasting repair. We repair consumer electronic equipment and we always use Panasonic branded electrolytics. They never fail and we never see recalls on the jobs we carry out using them. It's well worth paying a little extra for quality. The capacitors we supply are the new FR range with a long life and extra low ESR. The capacitors supplied here are the latest FR range of ultra low 105 degrees ESR capacitors with compact casing from Panasonic, a name to trust. Most modern equipment such as televisions and satellite receivers use switching power supplies rather than a conventional mains transformer arrangement. Typically the power supply switching frequency can be around 40kHz. The resulting ripple produced on the secondary supplies gives smoothing capacitors rather a hard life. The impedance of a capacitor at a specific frequency will cause a current flow dependent on the ESR, (equivalent series resistance) of the capacitor. This is the effective resistance of the capacitor and like any resistor heat will be produced as current flows through it. The lower the ESR the less heat that will be generated in the capacitor. It is the heat generated in the capacitor that after time will lead to its demise. A defective over heated capacitor will leak electrolyte from its head as the pressure builds up inside it. When carrying out manufacturer warranty repairs we often see defective capacitors in equipment less than a year old. The drive to reduce prices of equipment leads to the use of substandard components during the manufacturing process. Electrolytic capacitors can amount to a significant part of the component cost of a piece of equipment hence the use of cheaper versions. Lets have a look at the specification of this capacitor: ---Value: 1000uF ---Maximum working voltage: 25V DC ---Diameter: 10mm ---Length: 20mm ---Lead spacing: 5mm ---Brand: Panasonic FR series ---Endurance: 10000 hours at 105 degrees centigrade ---Impedance: 0.020 Ohms at 100kHz, 20 degrees centigrade ---ROHS compliant: Yes ---Operating Temperature Range:-40°C to +105°C When replacing capacitors in power supplies for example please remember that values and voltages are not that critical. For example the voltage rating of a capacitor is the maximum voltage allowed. It is therefore acceptable to fit a 25V capacitor in place of a 16V type. It is not acceptable to fit a 16V capacitor where the original was a 25V rated type. Since electrolytic capacitors have a tolerance of typically 20% the value also is not that critical. For example an 820uF type can be replaced with a 1000uF and 330uF can be replaced with a 470uF. The only important consideration is the physical size. If you use capacitors that are bigger than the originals then it may not be possible to fit them in correctly which can lead to a rather messy looking repair. A common sense approach is required. Also remember that unlike other capacitors electrolytic types are polarised which means the must be fitted the correct way round. The positive and negative on the capacitor is clearly marked. The negative leg has a stripe on the casing whilst the positive leg is the longer one.

5 Pack of Low ESR Panasonic FR Range 1000uf 25V Electrolytic Capacitors

5 pack of Panasonic 1000uF 25V aluminum electrolytic capacitors. When carrying out repairs to modern consumer electronic equipment the use of good quality capacitors, like Panasonic, will ensure a long lasting repair. We repair consumer electronic equipment and we always use Panasonic branded electrolytics. They never fail and we never see recalls on the jobs we carry out using them. It's well worth paying a little extra for quality. The capacitors we supply are the new FR range with a long life and extra low ESR.

The capacitors supplied here are the latest FR range of ultra low 105 degrees ESR capacitors with compact casing from Panasonic, a name to trust.

Most modern equipment such as televisions and satellite receivers use switching power supplies rather than a conventional mains transformer arrangement. Typically the power supply switching frequency can be around 40kHz. The resulting ripple produced on the secondary supplies gives smoothing capacitors rather a hard life.

The impedance of a capacitor at a specific frequency will cause a current flow dependent on the ESR, (equivalent series resistance) of the capacitor. This is the effective resistance of the capacitor and like any resistor heat will be produced as current flows through it. The lower the ESR the less heat that will be generated in the capacitor. It is the heat generated in the capacitor that after time will lead to its demise.

A defective over heated capacitor will leak electrolyte from its head as the pressure builds up inside it. When carrying out manufacturer warranty repairs we often see defective capacitors in equipment less than a year old.

The drive to reduce prices of equipment leads to the use of substandard components during the manufacturing process. Electrolytic capacitors can amount to a significant part of the component cost of a piece of equipment hence the use of cheaper versions.

Lets have a look at the specification of this capacitor:

Value: 1000uF
Maximum working voltage: 25V DC
Diameter: 10mm
Length: 20mm
Lead spacing: 5mm
Brand: Panasonic FR series
Endurance: 10000 hours at 105 degrees centigrade
Impedance: 0.020 Ohms at 100kHz, 20 degrees centigrade
ROHS compliant: Yes
Operating Temperature Range:-40°C to +105°C

When replacing capacitors in power supplies for example please remember that values and voltages are not that critical. For example the voltage rating of a capacitor is the maximum voltage allowed. It is therefore acceptable to fit a 25V capacitor in place of a 16V type. It is not acceptable to fit a 16V capacitor where the original was a 25V rated type.

Since electrolytic capacitors have a tolerance of typically 20% the value also is not that critical. For example an 820uF type can be replaced with a 1000uF and 330uF can be replaced with a 470uF.

The only important consideration is the physical size. If you use capacitors that are bigger than the originals then it may not be possible to fit them in correctly which can lead to a rather messy looking repair. A common sense approach is required.

Also remember that unlike other capacitors electrolytic types are polarised which means the must be fitted the correct way round. The positive and negative on the capacitor is clearly marked. The negative leg has a stripe on the casing whilst the positive leg is the longer one.