One of our customers has expressed concerns about the difference in diameter for the received B72214P2271K101 varistor. We checked with the manufacturer, EPCOS - TDK Electronics, to clarify this issue.
According to EPCOS - TDK, the term “Nominal” used in the datasheet refers to an approximate dimension, not an exact one. The nominal diameter of 14mm indicates that the diameter is around 14mm, allowing for slight variations.
Additionally, one can check in the drawing that the maximum diameter of the varistor is shown as Wmax:
Apart from this, these varistor are also available in Compact sizes, e.g.
-
MP Compact series (B72314P2): B72314P2271K101
This part has a smaller size (Wmax= 13.5mm) -
MP Standard series (B722): B72214P2271K101
This part Wmax =16.0mm
Applicable part numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 495-B72214P2271K101-ND | B72214P2271K101 |
| 495-B72214P2301K101-ND | B72214P2301K101 |
| 495-B72214P2321K101-ND | B72214P2321K101 |
| 495-B72214P2131K101-ND | B72214P2131K101 |
| 495-B72214P2381K101-ND | B72214P2381K101 |
| 495-B72214P2251K101-ND | B72214P2251K101 |
| 495-B72214P2151K101-ND | B72214P2151K101 |
| 495-B72314P2351K101-ND | B72314P2351K101 |
| 495-B72314P2301K101-ND | B72314P2301K101 |
| 495-4298-ND | B72214P2511K101 |
| 495-B72314P2461K101-ND | B72314P2461K101 |
| 495-B72214P2231K101-ND | B72214P2231K101 |
| 495-B72214P2171K101-ND | B72214P2171K101 |
| 495-B72214P2141K101-ND | B72214P2141K101 |
| 495-B72314P2381K101-ND | B72314P2381K101 |
| 495-B72314P2131K101-ND | B72314P2131K101 |
| 495-B72314P2151K101-ND | B72314P2151K101 |
| 495-B72314P2251K101-ND | B72314P2251K101 |
| 495-B72314P2171K101-ND | B72314P2171K101 |
| 495-B72314P2321K101-ND | B72314P2321K101 |
| 495-B72314P2231K101-ND | B72314P2231K101 |
| 495-B72214P2421K101-ND | B72214P2421K101 |
| 495-6606-ND | B72214P2551K101 |
| 495-4299-ND | B72214P2621K101 |
| 495-B72314P2141K101-ND | B72314P2141K101 |
| 495-B72314P2211K101-ND | B72314P2211K101 |
| 495-77615-ND | B72214P2321K502 |
| 495-77596-2-ND,495-77596-1-ND | B72214P2421K351 |
| 495-B72214P2461K351TR-ND,495-B72214P2461K351CT-ND | B72214P2461K351 |
| 495-77595-2-ND,495-77595-1-ND | B72214P2271K551 |