As smart surveillance cameras advance toward high-definition, intelligent, and networked solutions, audio alerting has become an essential feature. As the "acoustic heart" of a camera, the buzzer directly determines the device’s alert performance, stability, and compatibility. With profound expertise in electroacoustic R&D, Jiangsu Huaneng Electronic offers a full range of piezoelectric and electromagnetic buzzers, highly adaptable, powerful, and precisely dimensioned—making it the top partner for global camera OEMs.
1. Buzzer Selection for Cameras: Piezoelectric First, Electromagnetic Second
Surveillance cameras demand long standby time, compact space, and low power consumption. Piezoelectric buzzers are the mainstream choice due to their key advantages:
- Ultra-low power: Operating current only 1–5mA, preserving battery and circuit stability.
- Ultra-thin & compact: Thickness 2.5–4mm, ideal for domes, PTZs, and IPCs.
- Long life & reliability: No mechanical contacts, lifespan >100,000 hours, operating temperature -40°C to 85°C.
- No EMI interference: Ensures clear video and stable chip performance.
Electromagnetic buzzers are preferred for outdoor and industrial applications requiring loud, penetrating alarms (85–105dB).
2. HUA NENG Buzzers: Fully Optimized for Camera OEM
Huaneng’s buzzer lineup covers passive piezo, active piezo, and active electromagnetic types, tailored for all camera designs:
① Ultra-Thin Piezo Series (Mainstream IPC)
- MLT-8530 / MLT-9032 SMD Piezo Buzzers：
- Size: Φ8.5×3.0mm / Φ9.0×3.2mm, ultra-compact
- Voltage: 3V/5V, current ≤2mA, ultra-low power
- SPL: 80–85dB, 4kHz, clear, precise alerts
- Application: Home cameras, mini IPCs, smart doorbells
- MLT-8530 Passive Piezo Buzzer
- Size: Φ12×4mm, standard camera form factor
- Voltage: 5V/12V, 2.7kHz, compatible with mainboards
- Benefit: EMI-free, long-life, ideal for domes, bullets, PTZs
②Active Piezo Series (For Easy Mass Production
- Active Piezo Buzzer
- Built-in oscillator, sounds on power, simplifies design
- Size: Φ12×3mm, ultra-thin, easy assembly
- Temp: -30°C to 80°C, industrial-grade reliability
③ Electromagnetic Loud Series (Outdoor/Industrial)
TMB12A05 / HN-1201 Active Electromagnetic Buzzers
3. Core Advantages for OEM- Size: Φ12×9.5mm, standard high-SPL format
- Voltage: 5V/12V, SPL ≥85dB, strong penetration
- Application: Outdoor cameras, security DVRs, industrial monitoring
- Perfect Mechanical Fit：Full range Φ8.5–15mm, thickness 2.5–10mm. Directly compatible with camera housings; pin, SMD, and wire leads available—no mold changes needed.
- Electrical Compatibility：3V/5V/12V options match camera power systems. Low-power design avoids loading the mainboard; anti-interference ensures clear video + stable audio.
- Quality & Certifications：RoHS, CE compliant. High-temp LCP/PBT housing, 100% aging tested, 24/7 operation rated, lifetime >100,000 hours.
- OEM Customization：Custom specs, frequency tuning, housing design, and packaging. Fast prototyping + mass production to shorten time-to-market and lower costs.
4.Conclusion
From home smart cameras to industrial surveillance, HuaNeng buzzers deliver low power, small size, high reliability, and perfect fit—trusted by OEMs worldwide. Choose HUA NENG for stable alerts, superior quality, seamless OEM integration, and power your security with trusted sound.