IP Camera and DVR Security System

IP Camera and DVR Security System


Use of security cameras and surveillance systems is growing, facilitated greatly by Power over Ethernet (PoE). POE makes it possible to connect a camera with just one cable, rather than separate signal and power connections.

But parts of these security systems are often installed outside, where the devices and cabling are exposed to electrical hazards such as nearby lightning-induced surges and electrostatic discharge (ESD).

Ethernet, USB, HDMI, memory slots, keypads and other ports can all serve as entry points for surge transients.

As equipment has gained in capabilities, it relies on integrated circuits that have built-in electrical protection. The diagram below shows Littelfuse protections solutions for these types of threats.

Solutions By Circuit

10/100/1000 Ethernet ESD Protection

  • SP3002

    0.85pF, 12kV, Low Capacitance Diode Array for ESD Protection

10/100/1000 Ethernet Solutions for ESD and Lightning up to 10A, 20A and 40A

  • SP4060

    Low Voltage, Low Capacitance Diode Array for Surge Protection

  • SP3050

    2pF, 20kV, Low Capacitance Diode Array for ESD and Surge Protection

  • SPLV2.8

    Silicon Protection Array

10/100/1000 Ethernet, Inter-building Lightning Immunity

  • SP3050

    2pF, 20kV, Low Capacitance Diode Array for ESD and Surge Protection

10/100/1000 Ethernet, Intra-building Lightning Immunity

  • SP3050

    2pF, 20kV, Low Capacitance Diode Array for ESD and Surge Protection

AC Mains

  • Leaded

  • LA

    Line Voltage Operation Radial Leaded Varistor

Circuit Protection of eSATA Port

  • SP3010

    Ultra-Low Capacitance Diode Array for ESD Protection

  • SP3003

    0.65pF, 8kV, Low Capacitance Diode Array for ESD Protection - Qualified to AEC-Q101

Hard disk drive

  • 435

    SlimLine Lead-Free 0402 Very Fast-Acting Thin-Film Fuse

  • 438

    0603 Size Lead-Free, Halogen Free, High Temperature Very Fast-Acting Ceramic Fuse

  • 467 Series

    SlimLine Lead-Free 0603 Very Fast-Acting Thin-Film Fuse

  • SMAJ

    400W Surface Mount Transient Voltage Supressors

HDMI port

USB 2.0

USB 3.0

  • SP3003

    0.65pF, 8kV, Low Capacitance Diode Array for ESD Protection - Qualified to AEC-Q101

  • SP3010

    Ultra-Low Capacitance Diode Array for ESD Protection

  • SP3012

    Low Capacitance ESD Protection, 0.5pF Rail Clamp Array - Qualified to AEC-Q101

  • SP3011

    Littelfuse SP3011 SPA™ TVS Diode Array