GRT21BC Murata MLCC 2012M
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- 27 part numbers in this series
- Case size 2012M
- Capacitance 1 to 47 μF
- Operating temperature -55～125℃
The Murata GRT21BC series covers 27 part numbers across case sizes 2012M. All parts in the series share the same construction and qualification, and differ in the values listed in the table below — so a design can move up or down the range without changing footprint.
Part Number List
| Part Number | Capacitance | Tolerance | Rated Voltage | Temp. Char. | Size |
|---|---|---|---|---|---|
| GRT21BC71C106KE13# | 10 μF | ±10% | 16Vdc | HIK | 2012M |
| GRT21BC71E106KE13# | 10 μF | ±10% | 25Vdc | HIK | 2012M |
| GRT21BC71E475KE13# | 4.7 μF | ±10% | 25Vdc | HIK | 2012M |
| GRT21BC71H475KE13# | 4.7 μF | ±10% | 50Vdc | HIK | 2012M |
| GRT21BC80E476ME13# | 47 μF | ±20% | 2.5Vdc | HIK | 2012M |
| GRT21BC80G476ME13# | 47 μF | ±20% | 4Vdc | HIK | 2012M |
| GRT21BC81A106KE01# | 10 μF | ±10% | 10Vdc | HIK | 2012M |
| GRT21BC81A106ME01# | 10 μF | ±20% | 10Vdc | HIK | 2012M |
| GRT21BC81A226ME13# | 22 μF | ±20% | 10Vdc | HIK | 2012M |
| GRT21BC81C106KE01# | 10 μF | ±10% | 16Vdc | HIK | 2012M |
| GRT21BC81C106ME01# | 10 μF | ±20% | 16Vdc | HIK | 2012M |
| GRT21BC81C225KA02# | 2.2 μF | ±10% | 16Vdc | HIK | 2012M |
| GRT21BC81C225MA02# | 2.2 μF | ±20% | 16Vdc | HIK | 2012M |
| GRT21BC81C226ME13# | 22 μF | ±20% | 16Vdc | HIK | 2012M |
| GRT21BC81C335KE13# | 3.3 μF | ±10% | 16Vdc | HIK | 2012M |
| GRT21BC81C475KA02# | 4.7 μF | ±10% | 16Vdc | HIK | 2012M |
| GRT21BC81C475MA02# | 4.7 μF | ±20% | 16Vdc | HIK | 2012M |
| GRT21BC81E105KE13# | 1 μF | ±10% | 25Vdc | HIK | 2012M |
| GRT21BC81E105ME13# | 1 μF | ±20% | 25Vdc | HIK | 2012M |
| GRT21BC81E225KA02# | 2.2 μF | ±10% | 25Vdc | HIK | 2012M |
| GRT21BC81E225MA02# | 2.2 μF | ±20% | 25Vdc | HIK | 2012M |
| GRT21BC81E335KE13# | 3.3 μF | ±10% | 25Vdc | HIK | 2012M |
| GRT21BC81E475KA02# | 4.7 μF | ±10% | 25Vdc | HIK | 2012M |
| GRT21BC81E475MA02# | 4.7 μF | ±20% | 25Vdc | HIK | 2012M |
| GRT21BC8YA225KE13# | 2.2 μF | ±10% | 35Vdc | HIK | 2012M |
| GRT21BC8YA225ME13# | 2.2 μF | ±20% | 35Vdc | HIK | 2012M |
| GRT21BC8YA475KE13# | 4.7 μF | ±10% | 35Vdc | HIK | 2012M |
27 part numbers in this series, sorted by part number.
Selection Notes
- Capacitance falls with applied DC bias in high-K dielectrics (X5R, X7R, Y5V). The nameplate value is measured at 0 V — check the DC bias curve for the voltage the part actually sees.
- Class 1 dielectrics (C0G/NP0) hold capacitance across voltage and temperature but top out in the nanofarad range. Class 2 gives far more capacitance per volume at the cost of stability.
- Self-heating from ripple current adds to ambient. Keep the part below its rated temperature with margin, especially in high-frequency switching nodes.
- Flex cracks come from board bending, not electrical stress. Where the board is depanelised or screwed down near the capacitor, use a soft-termination variant.
Common Questions
How many part numbers are in the GRT21BC series?
27. The table above lists every one, sorted by part number.
What do the parts in the GRT21BC series have in common?
They share the same multilayer ceramic capacitor construction and case-size family; the differences are the electrical values shown per row.
Where can I find the full specification for a GRT21BC part?
Each part number links to Murata's official product page, which carries the detailed specification sheet, reliability data and simulation models.
Official documentation: GRT21BC71C106KE13# on murata.com — detailed specification sheet, reliability test data and S-parameter / SPICE models.
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