TPC-BF5641-B35Z3-J-S5-V1 4MP AI Thermal Camera with 35mm Lens and 10-30mm Varifocal Lens PoE IP67 - Dahua
TPC-BF5641-B35Z3-J-S5-V1 - is a high-performance hybrid thermal IP camera designed for advanced perimeter protection and early fire detection. It integrates a 640×512 VOx thermal sensor with 35mm thermal lens and a 4MP visible camera with 10-30mm varifocal motorized lens , ensuring precise monitoring over long distances. Thanks to Xinghan Artificial Intelligence , it supports fire, smoke, intrusion, line crossing and human/vehicle classification detection with false alarm reduction. Complete with two-way audio , audible and light alarm , PoE power supply, IP67/IK10 protection and advanced cybersecurity with TPM 2.0 , it represents an ideal solution for industrial sites, critical infrastructures and high-security areas. Dahua
TPC-BF5641-B35Z3-J-S5-V1 | POE THERMAL BULLET IP CAMERA WITH 10-30mm VARIFOCAL LENS - 35mm THERMAL LENS - 4 MEGAPIXELS - ARTIFICIAL INTELLIGENCE - TWO-WAY AUDIO - FIRE DETECTION

The Dahua TPC-BF5641-B25F12-J-S5-V1 is a hybrid thermal IP camera designed for professional monitoring of critical areas and advanced perimeter protection. Thanks to the 640×512 VOx thermal sensor and the 4 MP visible camera, it offers precise detection of fire, smoke and thermal anomalies, supported by Xinghan Artificial Intelligence for the classification of people and vehicles. Equipped with audible and light alarm , two-way audio , PoE power supply and IP67/IK10 protection, it guarantees reliable performance even in complex outdoor environments. Advanced cybersecurity with TPM 2.0 ensures maximum data and network protection.
Main specifications:
- Thermal sensor 640×512
- 4 MP optical camera
- 25mm thermal optics and 10-30mm visible optics
- AI people and vehicles
- Smoke and fire detection
- Two-way audio
- Sound and light alarm
- PoE/ePoE
- IP67 and IK10
Further details
The camera integrates a 12mm F1.7 visible lens , designed to provide detailed and clear images even over medium and long distances, making it ideal for monitoring perimeters, infrastructures and sensitive areas.
The 25mm fixed thermal optic offers an excellent compromise between coverage and detection distance, allowing early identification of thermal anomalies, heat sources and fire outbreaks.
✅ Two-way audio:
Technical data sheet
| TPC-BF5641-B35Z3-J-S5-V1 | |
| Thermal | |
| Detector Type | Vanadium oxide uncooled focal plane detector |
| Effective Pixels | 640 (H) × 512 (V) |
| Pixel Pitch | 12 μm |
| Spectral Range | 8 μm–14 μm |
| Sensitivity (NETD) | ≤20 mK (@f/1.0) |
| Field of View | H: 11.1°; V: 8.3° |
| Thermal Focus Control | Fixed-focal |
| Close Focus Distance | 28 m (91.86 ft) |
| Digital Detail Enhancement (DDE) | Yes |
| Digital Zoom | 24 levels |
| Thermal AGC | Auto/Manual |
| Thermal Noise Reduction | 2D NR/3D NR |
| Image Flip | 180°; Mirror |
| Color Palettes | 18 (white hot/black hot/fusion/rainbow/golden autumn/midday/iron red/amber/jade/sunset/icefire/painting/pomegranate/emerald /spring/summer/autumn/winter) |
| Visible | |
| Image Sensor | 1/1.8" CMOS |
| Max. Resolution | 2688 (H) × 1520 (V) |
| Pixel | 4 MP |
| Horizontal Definition |
Center ≥ 1200 TVL |
| Min. Illumination | Color: 0.01 lux Black & white: 0.001 lux 0 lux (white light on) |
| Visible AGC | Auto/Manual |
| Visible Noise Reduction | 2D NR/3D NR |
| S/N Ratio | >55 dB |
| White Balance | Car; manual; indoor; outdoor; tracking; sodium lamp; street lamp; natural |
| Defog | Electronic defog |
| Electronic Shutter Speed | 1 s–1/30,000 s (auto/manual) |
| BLC | Yes |
| WDR | Yes |
| HLC | Yes |
| Day/Night | Auto (ICR); Color; B/W |
| Iris Control | Fixed |
| Image Flip | 180°; Mirror |
| Field of View | H: 42°–15°;V: 22.8°–8.4° |
| Close Focus Distance | 9 m (29.53 ft) |
| Openings | F1.7 |
| Illuminator On/Off Control | Auto; manual |
| Illumination Distance | 80 m (262.47 ft) |
| Audio and Video | |
| Video Compression | H.265; H.264M; H.264H; H.264B |
| Video Compression | Thermal: Main stream: 1280×1024; 1280×720; 640×512; 1280 × 1024 (default); Sub stream: 640 × 512; 320×256; 640 × 512 (default) Visible: Main stream: 2688 × 1520; 1920×1080; 1280×720; 704×576; 2688 × 1520 (default); Sub streams: 704 × 576; 352×288; 352 × 288 (default) |
| Video Frame Rate | Thermal (50 Hz): Main stream: 1 fps–25 fps, 25 fps by default Sub stream: 1 fps–25 fps, 15 fps by default Visible (50 Hz): Main stream: 1 fps–25 fps, 25 fps by default Sub stream: 1 fps–25 fps, 15 fps by default Thermal (60 Hz): Main stream: 1 fps–30 fps, 30 fps by default Sub stream: 1 fps–30 fps, 15 fps by default Visible (60 Hz): Main stream: 1 fps–30 fps, 30 fps by default Sub stream: 1 fps–30 fps, 15 fps by default |
| Audio Compression | G.711a; G.711mu; PCM; AAC |
| Image Encoding Format | JPEG |
| Function | |
| Two-way Audio | Yes |
| Sound and Light Alarm | Yes |
| Network Protocol | HTTP; HTTPS; TCP; ARP; RTSP; RTP; UDP; RTCP; SMTP; FTP; DHCP; DNS; DDNS; PPPOE; IPv4/v6; SNMP; QoS; UPnP; NTP; Multicast; SFTP; 802.1x |
| Region of Interest (RoI) | Yes |
| Storage | FTP; Micro SD card (optional) |
| Interoperability | ONVIF; CGI; DaHua SDK |
| Browser | IE: IE8 and later (including the browsers with IE kernel, such as 360 Explorer, Sougou Explorer); Chrome: 42 and earlier; Firefox: 42 and earlier |
| User/Host | Up to 12 (total bandwidth: 64 MB) |
| Security | Network disconnection detection; IP conflict detection; memory card state detection; memory space detection |
| User Management | Up to 20 users; supports multi-level user permissions (2 levels): management group and user group |
| Malfunction Detection | Network disconnection detection; IP conflict detection; memory card state detection; memory space detection |
| Fusion Mode | Yes. |
| PIP | Yes |
| Micro SD Card (Max.) | 512 GB |
| Intelligence | |
| Heat Detection | Yes |
| Cold/Hot Spot Trace | Yes |
| Perimeter Protection | Yes. Supports tripwire and intrusion |
| Target Distinction | Human/Vehicle Classification |
| Smoke Detection | Yes |
| Port | |
| Analog Output | 1 × CVBS output; BNC port |
| Network Port | 1 × RJ-45 (10/100 Base-T) |
| Alarm Input | 2 |
| Alarm Output | 2 |
| Alarm Linkage | Recordings on SD card; digital output; e-mail; snapshot |
| Alarm Event | No SD card; low SD card space; SD card error; network disconnection; IP conflict; motion detection; video tampering; intrusion; tripwire; audio detection |
| Audio Input | 1 |
| Audio Output | 1 |
| RS-485 | 1 |
| Power | |
| Power Supply | 12-24 VDC (±10%), PoE (802.3af) |
| Power Consumption | Basic: 5.2 W (illuminator off, heater off, speaker off); Max: 16.2 W (illuminator on, heater on, speaker on) |
| ePoE | Yes |
| Environment | |
| Operating Temperature | –40 °C to +70 °C (–40 °F to +158 °F) |
| Operating Humidity | ≤95% |
| Storage Temperature | –40 °C to +70 °C (–40 °F to +158 °F) |
| Physical Characteristics | |
| Protection | IP67 |
| Product Dimensions | 300.9 mm × 130.2 mm × 120.1 mm (11.85" × 5.13" × 4.73") (L × W × H) |
| Packaging Dimensions | 423 mm × 180 mm × 178 mm (16.65" × 7.09" × 7.01") (L × W × H) |
| Net Weight | ≤2.35 kg (5.18 lb) |
| Gross Weight | ≤2.7 kg (5.95 lb) |
| Lens | Included |
| Reliability | Surge protection: 6 kV Air discharge: 15 kV Contact discharge: 8 kV |
| Vandal-proof Rating | Enclosure: IK10 |
| Anti-corrosion Level | Basic Protection *The products are designed for general use and are applicable even in areas with no specific requirements for anti-corrosion protection. |
| Certification | |
| Certifications | THERE IS |


