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Understand the PKM17EPP-4001-B0 piezo buzzer for alarms, indicators, and builds. Specs, wiring, troubleshooting, and where to find stock at Communica.
Get essential specs, wiring, and usage details for the PKM17EPP-4001-B0 piezo buzzer.
Practical advice for South Africans on availability, compatible components, and local procurement.
Ideal use cases plus diagnostic help for common circuit and sound issues.
The PKM17EPP-4001-B0 piezoelectric buzzer is a popular passive sound transducer, frequently used in alarms, timers, test equipment, and microcontroller circuits across South Africa. Its compact form and low current draw make it well-suited for educational kits, hobbyist designs, and industrial indicators requiring an audible alert.
Sourced from leading global manufacturers and distributed locally by Communica, this model is widely compatible with Arduino, PIC, Raspberry Pi, and PLC circuits. For procurement teams and students, choosing a reliable, spec-compliant buzzer ensures predictable sound output and long-term performance, especially where consistent volume and tone are critical (such as in test benches or safety panels).
| Spec | PKM17EPP-4001-B0 Value | Typical Range/Note |
|---|---|---|
| Type | Piezoelectric, Passive | Requires external driver (oscillator) |
| Rated Voltage | 12V DC | Can operate from 3-20V DC with output variation |
| Resonant Frequency | 4.0 kHz | Tonal, sharp beep |
| Sound Pressure Level (SPL) | 88 dB @ 12V/4kHz/10cm | Suitable for audible alerts in typical environments |
| Dimensions ( x H) | 17mm x 7.5mm | Panel-mount ready |
| Current Draw | < 5 mA (typ.) | Ultra low-power use |
The PKM17EPP-4001-B0 is a passive piezo, meaning it outputs sound only when fed with an AC signal (square wave or tone). Unlike active buzzers, users are responsible for generating the correct frequency signal, making it ideal for PWM outputs from microcontrollers.
Connect the PKM17EPP-4001-B0 in series with a current-limiting resistor (for >12V operation or if used with sensitive output pins). For microcontroller boards (e.g., Arduino), a simple driver circuit is:
+12V ----[ Piezo Buzzer ]----[ 470Ohm resistor ]----[ Digital I/O ]
When used with GPIO pins, drive the output with a 4kHz PWM signal for maximum volume. Typical student microcontroller code might use the tone() function (Arduino) or hardware PWM (Raspberry Pi GPIO).
Selecting a piezo buzzer for local projects involves a few practical factors beyond datasheet specs:
| Feature | Passive Buzzer (PKM17EPP-4001-B0) | Active Buzzer |
|---|---|---|
| Signal Required | External AC (PWM/tone) | DC supply only |
| Control Flexibility | Any pitch, duration, pattern | Fixed frequency/tone |
| Current Draw | Very low (<5mA) | Low (~10-30mA) |
| Complexity | Requires driving circuit | Plug-and-play |
For applications demanding programmable sound or notification sequences, passive buzzers like the PKM17EPP-4001-B0 are ideal.
SPL at 2m ~ 88 dB - 20*log(200/10) ~ 62 dBAt 62 dB, the buzzer will be distinctly audible over ambient noise during practicals or presentations.
Visit Communica's Buzzers section for up-to-date availability on PKM17EPP-4001-B0 and similar buzzers. Compatible enclosures, driver ICs, and prototyping tools are stocked for quick collection or delivery. For academic bulk orders, request VAT invoices and info packs at any branch.
Free shipping for orders over ZAR 1,000.00.
Get a full refund if you had the product for less than 7 days.
Nationwide delivery within 2 - 4 working days.
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