| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | EM-23046-C36 | Knowles | EM-23046-C36 Omnidirectional Electret Condenser Microphone |
 | FB-DW-30296-000 | Knowles | MEMS Electret Condenser Microphone, 1.3V, 300uA, Bulk Pack |
 |
| SCH105R |
| Mallory Sonalert |
| 16mA Panel Mount Piezo Driver, 1V DC, 65°C, IP66 |
 | PT-4532PLQ | Mallory Sonalert | 12V Round Through Hole Audio Component, 30mA, 95°C |
 | PF-27A35WQ | Mallory Sonalert | 12V 15mA DC Input Piezo Buzzer |
 | SMT-0820-S-R | Projects Unlimited | Surface Mount Audio Component, 5V, 70mA, 2kHz, 8.5mm x 8.5mm x 4mm |
 | SCH416R | Mallory Sonalert | Flange Mount Piezo Alarm 4V 14mA 42.85mm |
 | AB3529BF | Projects Unlimited | Piezo Ceramic Element, 30V, 3V, 2.9kHz, 35mm Diameter, Lead Free |
 | SPU0410LR5H-QB | Knowles | 3.6V 160uA Omnidirectional MEMS Microphone |
 | AB3526B | Projects Unlimited | 30V Piezo/Magnetic Transducer, 35mm Diameter, 70°C Operating |
 | AT-1220-TWT-5V-R | Projects Unlimited | AT Series 5V Through Hole Audio Component, Gold Contact Plating, 9.5mm Depth, 12mm Diameter |
 | SCH628AR | Mallory Sonalert | General Purpose Audio Component, 6V AC, 16mA, Flush Mount, IP66 |
 | AB2022A | Projects Unlimited | Piezo Element 30V 500R 20mm 0.1mm Wire Termination |
 | AB1541 | Projects Unlimited | Audio Indicator Diaphragm Piezo Wire Lead 3600Hz to 4600Hz |
 | AST-1732MR-R | Projects Unlimited | General Purpose Round Speaker, 17mm Diameter, 8mm Depth, 32R Impedance, Lead Free |
 | EK-23133-C36 | Knowles | Omnidirectional Electret Condenser Microphone, 1.3V, 50uA, 4.4kR, Rectangular, Solder |
 | ZA028LDFP1 | Mallory Sonalert | Audio Indicator Piezo 16VDC 28VDC 40mA 85dBA 2800Hz to 3800Hz Panel Mount Bulk |
 | KPEG620AN | Kingstate | Audio Indicator Piezo 60VDC/60VAC 250VDC/250VAC 7mA/18mA 220VDC/220VAC 75dB/76dB 2300Hz to 3300Hz Panel Mount Solder Lug Box |
 | PL-27A35ERQ | Mallory Sonalert | Audio Indicators & Alerts SLOW PULSE, 3-24VDC 3.5KHZ, 95DB, 37X24 |
 | SCE028LD3DP3B | Mallory Sonalert | Alarm; Slow Double Pulse, 3 KHZ, 16-28 DC, 85-95 DB, 40MA, 1.69X1.41In., TERM Bl |
