Audio and Video Applications Dataline and DC Signal Surge Suppressors
Last Updated: April 1, 2025
Description
Audio and Video Applications Dataline and DC Signal Surge Suppressors are designed to protect sensitive electronic equipment from voltage spikes and surges. These devices safeguard data lines and DC signal lines by preventing overvoltage conditions that can damage connected equipment.
Working Principle
These surge suppressors operate by detecting and diverting excess voltage away from the protected lines. They often utilize components such as Gas Discharge Tubes (GDTs) and clamping diode networks to manage incoming surges and attenuate potential let-through voltages. By doing so, they ensure that only safe voltage levels reach the connected devices, thereby preventing damage and maintaining the integrity of the signal.
Applications
These suppressors are particularly useful in protecting TV/camera CVBS cables, data communications, set-top boxes (STBs), RS-485 and RS-232 data lines, and controller area network (CAN) bus systems. They are essential in environments where these types of equipment are exposed to potential voltage surges, such as in industrial processing equipment and communication devices.
Advantages over other Dataline and DC Signal Surge Suppressors
The Littelfuse thyristor series, for example, offers higher power density in a smaller footprint compared to existing solutions. With an operating voltage of 6 V and a surge peak current capability of 4 kV, these suppressors are well-suited for low voltage signal line protection applications, providing a compact yet powerful solution.
Limitations
One limitation of these devices is that they must be carefully matched to the specific requirements of the application. The maximum surge current capability must be sufficient to handle the predicted overcurrents, and the number of protected lines must accommodate all signal lines in the network. Additionally, the wiring method for certain products may differ from standard SPDs, requiring careful consideration during installation.
Considerations
When selecting a surge suppressor, it is important to consider initial costs, operating expenses, and maintenance requirements. The durability and accuracy of the device are crucial for long-term protection, and replacement and maintenance costs should be factored into the overall investment. Buyers should ensure that the suppressor's specifications align with the needs of their specific application to maximize effectiveness and cost-efficiency.
from Transtector Systems, Inc.
Data surge protector (also known as SPD or lightning protector) 1101-613 from Transtector is an indoor CCTV style SPD that utilizes state of the art SASD technology to protect critical equipment in CCTV protocol data networks while remaining transparent to data throughput. This surge protector... [See More]
- Application: Network Applications; Telecom. Applications; Audio & Video Applications; Computer Rooms
- Mounting: Wall/Panel
- Technology: Silicon Avalanche Diode
- Connection: Screw Down Terminals; Coaxial Cable Connectors (BNC, F Type etc.)
from MCG SURGE PROTECTION
The DLP H & HH series provides superior surge protection for data and signal line applications. Using higher capacity components, these units offer an improved level of reliability than other similarly priced products. To cover a broader range of applications, four different styles of protection... [See More]
- Application: Data Acquisition; Network Applications; Telecom. Applications; Audio & Video Applications; Medical Facilities; Computer Rooms; PLC I/O Ports, 4-20mA loops
- Mounting: Wall/Panel; Device Mount; In-line or Integrally Attached
- Technology: Silicon Avalanche Diode; Gas Tubes; Hybrid
- Connection: Screw Down Terminals; 0
from Comtelco Industries, Inc.
2GHz-3GHz DC BLOCKED FILTER [See More]
- Application: Audio & Video Applications
- Mounting: In-line or Integrally Attached
- Technology: Gas Tubes
- Connection: Coaxial Cable Connectors (BNC, F Type etc.)
from SFCable.com
Suitable for protection for video signal of CCTV surveillance systems. Low restricted voltage, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications
from Surge Suppression Incorporated
Coax Type Protection Series - UL497B Listed [See More]
- Application: Data Acquisition; Network Applications; Audio & Video Applications
- Mounting: Device Mount; In-line or Integrally Attached; "BNC" Type Connector In/Out
- Technology: Hybrid
- Connection: Coaxial Cable Connectors (BNC, F Type etc.)
from Transtector Systems, Inc.
Data surge protector (also known as SPD or lightning protector) 1101-704 from Transtector is an indoor style SPD that utilizes state of the art SASD technology to protect critical equipment in CCTV protocol data networks while remaining transparent to data throughput. This surge protector provides... [See More]
- Application: Network Applications; Telecom. Applications; Audio & Video Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
- Mounting: Rack
- Technology: Silicon Avalanche Diode
- Connection: Coaxial Cable Connectors (BNC, F Type etc.)
from Comtelco Industries, Inc.
DC-3GHz GAS TUBE DC PASS BULK HEAD SURGE & LIGHTNING ARRESTOR [See More]
- Application: Audio & Video Applications
- Mounting: In-line or Integrally Attached
- Technology: Gas Tubes
- Connection: Coaxial Cable Connectors (BNC, F Type etc.)
from SFCable.com
Single Channel RS485 Video Surge Protector. Suitable for protection for video signal of CCTV surveillance systems. Low restricted voltage, large flow capacity, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications
from Surge Suppression Incorporated
Individual Circuit Protection (Euro Style DIN Mounted) Series [See More]
- Application: Audio & Video Applications; Computer Rooms
- Mounting: DIN Rail; Device Mount; In-line or Integrally Attached
- Technology: Hybrid
- Connection: Screw Down Terminals (optional feature)
from Comtelco Industries, Inc.
GAS TUBE SURGE ARRESTOR 50-700MHz DC BLOCKED [See More]
- Application: Audio & Video Applications
- Mounting: In-line or Integrally Attached
- Technology: Gas Tubes
- Connection: Coaxial Cable Connectors (BNC, F Type etc.)
from SFCable.com
3-in-1 surge protection; suitable for protection for video signal of CCTV surveillance systems. Low restricted voltage, large flow capacity, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications
from Surge Suppression Incorporated
Individual Circuit Protection Series 2 [See More]
- Application: Audio & Video Applications; Computer Rooms
- Mounting: DIN Rail (optional feature); Device Mount; In-line or Integrally Attached
- Technology: Hybrid
- Connection: Screw Down Terminals (optional feature); Wired
from SFCable.com
Single Channel Video / Data / Power Surge Protector. Single Channel Video / Data / Power Surge Protector, 24V AC. 3-in-1 surge protection; suitable for protection for video signal of CCTV surveillance systems. Low restricted voltage, large flow capacity, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications
from Surge Suppression Incorporated
Security System Protection Products - UL497B Listed [See More]
- Application: Data Acquisition; Network Applications; Audio & Video Applications
- Mounting: DIN Rail (optional feature); Device Mount; In-line or Integrally Attached; 1 BNC Pair In/Out, 4 Data, 2 Power
- Technology: Hybrid
- Connection: Screw Down Terminals; Coaxial Cable Connectors (BNC, F Type etc.)
from SFCable.com
SP-94 Video Surge Protector, 8-CH. Suitable for centralized surge protection for video signal in CCTV systems. Low restricted voltage, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications
from SFCable.com
Video Surge Protector, 16-CH. Suitable for centralized surge protection for video signal in CCTV systems. Low restricted voltage, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications
from SFCable.com
8-CH BNC Video & Data Surge Protector. Suitable for centralized surge protection for video signal in CCTV systems Low restricted voltage, quick response time and convenient mounting. [See More]
- Application: Audio & Video Applications