PKM Murata Piezoelectric Sounder / Buzzer
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- 27 part numbers in this series
- Capacitance 5.5 to 34 nF
- Frequency 2 to 4.8 kHz
- Operating temperature -40～85℃
The Murata PKM series covers 27 part numbers. 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 | Specification |
|---|---|
| PKM13EPYH4000-A0 | 12.6×6.9 m,Not built-in,78dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM13EPYH4002-B0 | 12.6×6.9 m,Not built-in,78dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM17EP-2002-B0 | 17.0×9.8 m,Not built-in,79dB Typ. [3.0Vo-p,2.0kHz,square wave,10cm] |
| PKM17EPH4001-B0 | 17.0×8.2 m,Not built-in,79dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM17EPH4002-B0 | 17.0×8.2 m,Not built-in,79dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM17EWH4000 | 16.8×4.3 m,Not built-in,88dB Typ. [3.0Vp-p,4.0kHz,square wave,10cm] |
| PKM22EPH2001 | 22.0×11.0 m,Not built-in,85dB Typ. [±1.5Vo-p,2.0kHz,square wave,10cm] |
| PKM22EPH2002 | 22.0×11.0 m,Not built-in,85dB Typ. [±1.5Vo-p,2.0kHz,square wave,10cm] |
| PKM22EPH2003 | 22.0×11.0 m,Not built-in,85dB Typ. [±1.5Vo-p,2.0kHz,square wave,10cm] |
| PKM22EPH2001-B0 | 22.0×12.0 m,Not built-in,79dB Typ. [±1.5Vo-p,2.0kHz,square wave,10cm] |
| PKM22EPH2002-B0 | 22.0×12.0 m,Not built-in,79dB Typ. [±1.5Vo-p,2.0kHz,square wave,10cm] |
| PKM22EPH4001-B0 | 22.0×8.2 m,Not built-in,87dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM22EPH4002-B0 | 22.0×8.2 m,Not built-in,87dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM22EPH4005-B0 | 22.0×8.2 m,Not built-in,86dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM22EPH4007-B0 | 22.0×12.0 m,Not built-in,92dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM22EPH4012-B0 | 22.0×12.0 m,Not built-in,92dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKM22EPTH2001-B0 | 22.0×7.0×26.5 m,Not built-in,70dB Min. [3.0Vp-p,2.0kHz,square wave,10cm] |
| PKM24SPH3801 | 24.0×11.0 m,Not built-in,90dB Min. [12Vdc,10cm],3.8kHz [12Vdc] |
| PKM24SPH3805 | 24.0×11.0 m,Not built-in,90dB Min. [12Vdc,10cm],3.8kHz [12Vdc] |
| PKM24SPH3807 | 24.0×11.0 m,Not built-in,90dB Min. [12Vdc,10cm],3.8kHz [12Vdc] |
| PKM24SPH3810 | 24.0×11.0 m,Not built-in,90dB Min. [12Vdc,10cm],3.8kHz [12Vdc] |
| PKM30SPTH2001-B0 | 30.5×7.7×33.25 m,Not built-in,75dB Min. [12Vdc,10cm],2kHz [12Vdc] |
| PKM30SPTH2501-B0 | 30.5×7.7×33.25 m,Not built-in,75dB Min. [12Vdc,10cm],2.5kHz [12Vdc] |
| PKMCS0909E4000-R1 | 9.0×9.0×1.9 m,Not built-in,72dB Typ. [±1.5Vo-p,4.0kHz,square wave,10cm] |
| PKMCS0909E48H0-R1 | 9.0×9.0×3.0m,Not built-in,75dB Typ. [±2.5Vo-p,4.8kHz,square wave,10cm] |
| PKMCS1818E2001-R1 | 18.0×18.0×8.0 m,Not built-in,90dB Typ. [±1.5Vo-p,2.0kHz,square wave,10cm] |
| PKMCS1818E20A0-R1 | 18.0×18.0×8.0 m,Not built-in,100dB Typ. [12Vo-p,2.0kHz,square wave,10cm] |
27 part numbers in this series, sorted by part number.
Selection Notes
- Select by the parameter limits in the table, then confirm the derating curves in the full specification before committing a design.
- Package and footprint dimensions are listed per part. Verify against your land pattern — the same series can ship in several case sizes.
- Where the series spans automotive and consumer grades, check the part number suffix. The electrical values may match while the qualification does not.
Common Questions
How many part numbers are in the PKM series?
27. The table above lists every one, sorted by part number.
What do the parts in the PKM series have in common?
They share the same piezoelectric sounder / buzzer construction and case-size family; the differences are the electrical values shown per row.
Where can I find the full specification for a PKM part?
Each part number links to Murata's official product page, which carries the detailed specification sheet, reliability data and simulation models.
Official documentation: PKM13EPYH4000-A0 on murata.com — detailed specification sheet, reliability test data and S-parameter / SPICE models.
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