How do you read the date code on a Panasonic capacitor?

How do you read the date code on a Panasonic capacitor?

Reading Date Codes on Panasonic Relays

1. Three digit code: The first digit represents the year and the remaining two digits represent the week number in a calendar year.
2. Four digit code: The first two digits represent the year and the remaining two digits represent the week number in a calendar year.

How do you read a capacitor date code?

The “standard” format for date codes is YYWW or WWYY or YYMM or MMYY where WW is week # and MM is month #. 6608 is certainly 1966.

What does the date on a capacitor mean?

Manufacturing Date Code Chart Date code is marked on capacitor which includes year and month of manufacturing. The manufacturing code shall consists of 2 digits (alphanumeric). The first shall denote the year (alphabetic). The second stands for the month (alphanumeric).

How do you read a capacitor marking?

If you have a capacitor that has nothing other than a three-digit number printed on it, the third digit represents the number of zeros to add to the end of the first two digits. The resulting number is the capacitance in pF. For example, 101 represents 100 pF: the digits 10 followed by one additional zero.

Does capacitor have expiry date?

Many manufacturers specify a typical shelf life for a capacitor or an assembly containing capacitors. The manufacture’s stated shelf life for an aluminum electrolytic capacitor can range from 2 to 10 years, depending on the quality of the component (Kogler, 1999).

What do the numbers on a run capacitor mean?

The higher the voltage rating on your capacitor (or other electrical item) the faster the electrical current moves. The second rating is the microfarad (MFD) rating. A microfarad is a term to describe a capacitor’s level of capacity. That means the higher the microfarad rating, the more electrical current it can store.

How long do capacitors last on the shelf?

What happens when capacitors get old?

During the capacitor aging process the electron leakage current and the chemical reactions both cause a decrease in the capacitance value and an increase in the resistance value. Both of these changes (decrease in capacitance and increase in the resistance) are tied to damage taking place inside of the capacitor.

Are there markings on SMD ceramic capacitors?

SMD ceramic capacitor codes: Surface mount capacitors are often very small and do not have the space for markings. During manufacture the capacitors are loaded into a pick and place machine and there is no need for any markings.

How many characters are in a capacitor marking code?

Abbreviated capacitor marking codes: Smaller capacitors may only have room for a few figures printed as a code for the value. This capacitor marking code uses three characters. It bears many similarities to the numeric code system adopted for some surface mount resistors.

Do you need a code for an electrolytic capacitor?

Electrolytic capacitor markings: Many leaded capacitors are quite large, although some are smaller. As such it is often possible to provide the complete value and details in a non-abbreviated format. However many smaller electrolytic capacitors need to have coded markings on them as there is insufficient space.

What is the EIA tolerance code for capacitors?

EIA Tolerance Capacitor Marking Code; Letter code Tolerance; Z +80%, -20% – this is used with electrolytic capacitors where the minimum value is the major issue. M : ±20% : K : ±10% : J : ±5% : G : ±2% : F : ±1% : D : ±0.5% : C : ±0.25% : B : ±0.1%