Security and surveillance systems operate 24/7 in demanding environments, requiring reliable PoE power delivery, high-speed networking, and precision image chain components with documented performance. Restar Electronics supports security OEMs with 500,000+ in-stock SKUs, 24-hour RFQ response, BOM matching, quality inspection, and global shipping for camera, access control, and alarm system programs.
Components for Professional Security Systems
IP cameras, NVR/DVR systems, and access control panels combine image sensors, PoE power management, Ethernet connectivity, and IR illumination in weatherized enclosures designed for continuous operation. Restar stocks PoE ICs, image sensor support parts, networking passives, and power devices for security PCBA builds.
Smart access control and intrusion detection add RFID/NFC readers, secure MCU companion parts, and backup power circuits that must function during mains failure. Our FAE team assists with PoE budget calculations, image chain component selection, and supply continuity for high-volume security product lines.
- PoE ICs, image sensor support, relays, TVS/ESD, and networking parts in stock
- 24-hour RFQ with BOM matching for camera and access control builds
- FAE support for PoE design, image chain, and networking component selection
- Global shipping for security OEM and integrator supply programs

Key Challenges
PoE Power Budget & Thermal Design
802.3af/at/bt PoE cameras must efficiently convert 48V input to multi-rail power while dissipating heat in sealed outdoor housings.
Image Quality & Low-Light Performance
Surveillance image chains require low-noise power rails, precision timing, and IR LED drivers that maintain clarity in zero-lux conditions.
Network Reliability & Cybersecurity Hardware
Always-on IP cameras demand robust Ethernet PHY support, surge protection, and secure element companion parts for encrypted communication.
Application Scenarios
IP Camera & Video Surveillance
Fixed, PTZ, and dome cameras capture HD/4K video with PoE power, H.265 encoding, and IR night vision over Ethernet networks. Restar supplies PoE PD controllers, image sensor interface passives, and IR LED driver ICs.
- PoE PD controller and power MOSFETs
- Image sensor MIPI/LVDS support passives
- IR and white LED constant-current drivers
Access Control & Identity Management
Card readers, biometric scanners, and smart locks authenticate users via RFID, NFC, fingerprint, or facial recognition with secure MCU architectures. We provide RFID front-end ICs, relays, and secure element support parts.
- RFID/NFC reader ICs and antennas
- Electromechanical and solid-state relays
- Secure MCU companion passives and crystals
Intrusion Detection & Alarm Systems
PIR motion detectors, smoke/CO sensors, glass-break detectors, and sirens form perimeter and interior protection networks with battery backup. Restar delivers PIR support circuits, sensor interface ICs, and siren driver components.
- PIR sensor amplification and filtering
- Smoke/CO sensor interface ICs
- Siren and strobe LED driver circuits
Key Components
PoE PD Controller & Power ICs
802.3af/at/bt powered camera and access devices
In Stock / RFQ
Image Sensor Support Passives
MIPI, LVDS, and analog image chain decoupling
In Stock / RFQ
Relays (EM & Solid-State)
Door strike, alarm output, and lock control
In Stock / RFQ
TVS / ESD Protection
Ethernet, USB, and antenna port surge protection
In Stock / RFQ
RFID / NFC Reader ICs & Antennas
Access control card and mobile credential reading
In Stock / RFQ
IR LED Driver ICs
Camera night vision and illuminator control
In Stock / RFQ
Our Capabilities
Security System BOM Consolidation
Single-source procurement for camera, NVR, and access control multi-board assemblies.
PoE & Power Design Support
FAE guidance on PoE class selection, power budget allocation, and thermal component choices.
Image Chain Component Selection
Sensor interface, clock, and power rail passives optimized for low-noise video performance.
High-Volume Security Product Supply
Scheduled deliveries and allocation support for million-unit camera production programs.
Engagement Process
Share System Requirements
Submit BOM with device type, PoE class, resolution, and deployment environment.
Security Component Review
Restar validates PoE, image chain, and networking component selections.
Quote & Evaluation Units
Receive 24-hour pricing and approve prototype camera or panel builds.
Production Fulfillment
Global delivery with lot traceability for security product manufacturing.