Vishay Tantalum Capacitor Marking

4 min read Jun 26, 2024
Vishay Tantalum Capacitor Marking

Understanding Vishay Tantalum Capacitor Markings

When working with electronic components, it's essential to understand the markings and codes printed on them. Tantalum capacitors, in particular, have a specific set of markings that indicate their characteristics, rating, and application. In this article, we'll delve into the world of Vishay tantalum capacitor markings and explore what each code and symbol means.

Vishay Tantalum Capacitor Marking Scheme

Vishay, a leading manufacturer of tantalum capacitors, uses a specific marking scheme to identify their products. The marking scheme consists of a combination of letters, numbers, and symbols that provide information about the capacitor's characteristics, such as capacitance, voltage rating, tolerance, and polarity.

Capacitance and Tolerance

The capacitance value is indicated by a three-digit code, where the first two digits represent the capacitance value in picofarads (pF), and the third digit represents the number of zeros to be added to the capacitance value. For example:

  • 104 = 100,000 pF (100 nF)
  • 225 = 22,000 pF (22 nF)

The tolerance is indicated by a letter code, which represents the percentage of deviation from the nominal capacitance value. The most common tolerance codes are:

  • J: ±5%
  • K: ±10%
  • M: ±20%

Voltage Rating

The voltage rating is indicated by a two-digit code, where the first digit represents the voltage rating in volts, and the second digit represents the multiplier (0, 1, or 2). For example:

  • 16 = 16 V
  • 25 = 25 V
  • 35 = 35 V


The polarity of the capacitor is indicated by a symbol or a code:

  • + or - symbols indicate the polarity of the capacitor
  • NP or NR codes indicate a non-polarized capacitor

Other Markings

Other markings on a Vishay tantalum capacitor may include:

  • Date Code: a four-digit code representing the year and week of manufacture
  • Batch Number: a unique identifier for the production batch
  • Vishay Logo: the manufacturer's logo, which may be accompanied by a country code (e.g., USA)

Example of a Vishay Tantalum Capacitor Marking

Here's an example of a Vishay tantalum capacitor marking:



  • 105: capacitance value = 10,000 pF (10 nF)
  • K: tolerance = ±10%
  • 16: voltage rating = 16 V
  • V: voltage rating multiplier (not applicable in this case)
  • TR: termination style (not applicable in this case)


Understanding the markings on a Vishay tantalum capacitor is crucial for selecting the right component for your application. By deciphering the code, you can ensure that your design meets the required specifications and operates safely and efficiently. Remember to always consult the datasheet and manufacturer's documentation for specific information on the capacitor's characteristics and application guidelines.