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TAT BP1790-20 17*17*9.0mm 3Vp-p 2000Hz Pin Mount Good Quality And Hot Sell Piezoelectric Ceramic Buzzer

TAT BP1790-20 Piezoelectric Ceramic Buzzer, 17*9mm 3Vp-p 2000Hz Pin Mount Passive Piezo Buzzer

TAT BP1790-20 is a passive pin-mount piezoelectric ceramic buzzer without built-in driving circuit. It adopts high-temperature resistant Black PPO housing with body size Φ16.8 × 9.1 mm. Designed with 2 through-hole pins (Φ0.8mm) for direct soldering on PCB, this buzzer resonates at 2000Hz under driving voltage of 3Vp-p. The reserved sound hole delivers soft and stable alert tone. It is widely preferred for mass production because of convenient pin mounting and reliable PPO material. We are direct manufacturer with samples and customization for bulk orders.

Model:
BP1790-20
Brand:
TAT
Code:
BP1790-20

Style:	Piezoelectric Ceramic buzzer
Operating Voltage:	1~25Vp-p
Rated Current:	Max.5mA,at 2KHz 50% duty Square Wave 3Vp-p
Sound Output at 10cm:	Min.70dB,at 2KHz 50% duty Square Wave 3Vp-p
Resonant Frequency:	2000±400Hz
Net Weight:	Approx 1.5g
RoHS:	Yes
Availability:

Quantity:



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Product Description

Key Features

Passive piezo buzzer, external oscillation drive circuit required
Through-hole pin mount design, easy for PCB soldering and SMT mass assembly
High-temperature Black PPO housing, excellent heat resistance & structural stability
Resonant frequency: 2000Hz, low-frequency gentle warning sound
Driving voltage: 3Vp-p
Built-in sound hole for consistent sound transmission
Dimensional tolerance: ±0.5mm unless specified
RoHS compliant for global electronic export
Factory direct supply with stable quality
Samples available for prototype testing; custom specifications acceptable

Specifications

Item	Parameter
Model	BP1790-20
Buzzer Type	Passive Piezoelectric Ceramic Buzzer
Body Dimension	Φ16.8 × 9.1 mm
Housing Material	Black PPO
Mounting Type	Through-hole Pin Mount
Pin Spec	2-Φ0.8 mm
Resonant Frequency	2000Hz
Driving Voltage	3Vp-p
Tolerance	±0.5mm unless specified
Compliance	RoHS

Product Dimension & Structure

This pin-type passive piezo buzzer is made of premium Black PPO plastic. As shown on the engineering drawing, the cylinder body diameter is 16.8mm and height is 9.1mm. Two Φ0.8 straight pins extend out for through-hole soldering onto PCB. A central sound hole optimizes sound radiation. Since it is passive, you need an external drive circuit to trigger sound. The PPO shell works steadily under elevated temperature environments, perfect for appliance and industrial projects.

Applications

Our pin-mount passive piezoelectric buzzers are widely used for audio prompt and warning signals:

Household appliances
Industrial control panels
Handheld medical instruments
Access control & door lock systems
Smart environmental sensors
Testing and measuring instruments
Automotive auxiliary alert modules

FAQ

Q1: Is BP1790-20 active or passive buzzer? It is passive piezo buzzer. No internal drive circuit, external signal source is required.

Q2: What is the advantage of PPO housing? PPO material features outstanding heat resistance, low water absorption and anti-aging performance, suitable for high-temperature working environments.

Q3: What is its resonant frequency? 2000Hz, it outputs soft, low-frequency alert tone.

Q4: Can I get samples for testing? Yes, we offer samples for your prototype verification.

Q5: Can we customize pin length or frequency for bulk orders? Customization is available when meeting our MOQ.

Q6: Is this buzzer RoHS compliant? Yes, it meets RoHS standards for worldwide export.