PF-21A31PQ.pdf
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| Part Number | PF-20A35EWQ | PFD-20A35EWQ | PF-21A31PQ | PF-27N36WQ | PF-12N40PEDR-24VICQ |
| Manufacturer | Mallory Sonalert Products Inc. | Mallory Sonalert Products Inc. | Mallory Sonalert Products Inc. | Mallory Sonalert Products Inc. | Mallory Sonalert Products Inc. |
| Series | PF | PFD | PF | PF | PF |
| Packaging | Bulk | Bulk | Bulk | Bulk | Bulk |
| Product Status | Active | Active | Active | Active | Active |
| Driver Circuitry | Indicator, Internally Driven | Indicator, Internally Driven | Indicator, Internally Driven | Indicator, Internally Driven | Indicator, Internally Driven |
| Input Type | DC | DC | DC | DC | DC |
| Voltage - Rated | 12 V | 12 V | 12 V | 12 V | 24 V |
| Voltage Range | 3 ~ 24V | 3 ~ 24V | 3 ~ 24V | 3 ~ 28V | 6 ~ 28V |
| Frequency | 3.5kHz | 3.5kHz | 3kHz | 3.5kHz | 4.1kHz |
| Technology | Piezo | Piezo | Piezo | Piezo | Piezo |
| Operating Mode | Pulse, Fast | Pin Selectable | Pulse, Fast | Pulse, Fast | Pulse, Fast |
| Duration | - | - | - | 3 PPS | - |
| Sound Pressure Level (SPL) | 95dB @ 12V, 30cm | 95dB @ 12V, 30cm | 85dB @ 12V, 30cm | 90dB @ 12V, 30cm | 85dB @ 24V, 10cm |
| Current - Supply | 10mA | 10mA | 18mA | 15mA | 200mA |
| Port Location | Top | Top | Top | Top | Top |
| Operating Temperature | -20°C ~ 70°C | -20°C ~ 70°C | -20°C ~ 70°C | -20°C ~ 70°C | -20°C ~ 70°C |
| Approval Agency | - | - | - | - | - |
| Ratings | - | - | - | - | - |
| Ingress Protection | - | - | - | - | - |
| Mounting Type | Panel Mount, Flange | Panel Mount, Flange | Through Hole | Panel Mount, Flange | Through Hole |
| Termination | Wire Leads | Wire Leads | PC Pins | Wire Leads | PC Pins |
| Size / Dimension | 1.102" Dia (28.00mm) | 1.102" Dia (28.00mm) | 0.945" Dia (24.00mm) | 1.181" Dia (30.00mm) | 0.543" Dia (13.80mm) |
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