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SolaHD STC-642-020 - 20 Volt Clamp for STC-642 Series data/signal protection devices
SolaHD

STC-642-020

UPC: 783472700592


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Specification Sheet

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Overview

The SolaHD 20V Clamp (SKU STC-642-020) is a precision-engineered component designed to safeguard data and signal integrity in industrial applications. With a 20V voltage rating, it provides reliable protection against transient overvoltage events while maintaining low insertion loss. Specifically engineered for compatibility with the STC-642 series protection devices, this clamp integrates seamlessly into existing protection circuits. Its compact form factor reduces space requirements, making it ideal for densely packed control panels and automation equipment. Built with durable materials, it withstands harsh industrial environments, ensuring long-term performance. By precisely limiting voltage, the clamp protects sensitive electronics, extends equipment lifespan, and helps meet regulatory standards. The STC-642 series is part of a multi-stage protection strategy for low-voltage data/signal lines, including clamping high-energy impulses, filtering noise, and protecting PLCs and sensitive equipment. This clamp is suitable for applications such as factory automation, process control, and data acquisition systems where data integrity is critical.
  • 20V voltage rating for precise overvoltage protection
  • Low insertion loss maintains signal integrity
  • Compact design ideal for densely packed control panels
  • Durable construction withstands harsh industrial environments
  • Seamless integration with STC-642 series protection devices

Specifications

Amperage Rating
0.35 AMP
Application
CCTV Head End, CCTV Camera End
Brand Name
SolaHD
Frequency Rating
0 to 20 MHz
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
50 Hz
Special Features
Hybrid, three-stage technology, Sneak/fault Current protection, Low insertion loss, shielded case, Without Isolated Ground
Standard
UL Listed , UL 497B. RoHS Compliant, NFPA 780 (2004) Compliant Communication Protectors
Type
STC-CCTV Coax Series
Voltage Rating
5 V
Wattage
0.72 WAT
Package Dimensions (L x W x H)
8.4 IN x 5.4 IN x 2.9 IN
Package Dimensions (L x W x H)
21.336 cm x 13.716 cm x 7.366 cm
Package Weight (Imperial)
0.900 L
Package Weight (Metric)
0.408 kg
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Frequently Asked Questions

What is the operating voltage range for the STC642036?

The STC642036 has an operating voltage range of 5-36 Vdc.

What is the operating temperature range?

The operating temperature range for the device is -40 °C to +85 °C (-40 °F to +185 °F).

How should the STC-642 module be grounded?

Terminals 1 or 10 must be attached to a building approved ground, preferably an AC Power ground.

What is the response time for surge protection?

The response time for surge protection is less than 1 nanosecond.

What is the warranty period for this product?

The STC-642 Series comes with a five-year limited warranty.

What are the dimensions of the STC-642 module?

The dimensions are 2.05 in H x 1.00 in W x 2.40 in L (52.1 x 25.4 x 61.0 mm).

What is the typical resistance of the STC642036?

The typical resistance of the STC642036 is 5 Ohms.

What certifications does the STC-642 Series have?

The STC-642 Series is UL 497B Listed and RoHS Compliant.

What is the purpose of the STC-642 Series?

The STC-642 Series are surge suppressors designed for dual pair (four wire) data/signal lines, providing protection against overvoltage transients and mitigating sneak/fault currents.

What protection technology does the STC-642 Series use?

It uses three-stage hybrid technology, combining Gas Discharge Tubes (GDT), Silicon Avalanche Diodes (SAD), and resettable fuses (PTCs) for surge and fault current protection.

Frequently Asked Questions about SolaHD

What certifications and standards do SolaHD products comply with?

SolaHD power supplies are UL 508 Listed for Industrial Control Equipment and comply with multiple international standards, including UL 60950, CUL/CSA-C22.2 No. 234-M90, and IECEx certifications. Our products meet EMC and Low Voltage Directives, with extensive hazardous location certifications including Class I Zone 2, ATEX, and IECEx, ensuring reliable performance in industrial environments.

What industries and applications are SolaHD products used for?

SolaHD products are used across a wide range of critical industrial applications, including factory automation, process control, machine control, material handling, building automation, and harsh environment installations. Key industries include manufacturing, process industries, semiconductor fabrication, packaging, conveying equipment, instrumentation, and environments requiring UL508 compliance such as water treatment facilities. The products are specifically designed for challenging industrial settings, with certifications for hazardous locations and extreme temperature ranges.

What technical support does SolaHD offer?

SolaHD offers comprehensive technical support through experienced sales representatives available worldwide. Our support includes expert consultation for selecting the right power quality solutions, with award-winning online tools to help customers make precise product selections. Technical support covers the entire range of our industrial power solutions, from service entrance protection to point-of-use equipment, ensuring customers can optimize their facility's power infrastructure.

What are the main product lines offered by SolaHD?

SolaHD offers a comprehensive range of industrial power quality solutions across five primary product lines: Power Supplies, Surge Protection Devices (SPDs), Transformers, Power Conditioning, and Uninterruptible Power Supplies (UPS). Key product series include SDN Power Supplies, STV/STFV Surge Protective Devices, Industrial Control Transformers, MCR Constant Voltage Conditioners, and SDU UPS systems designed for industrial automation, process control, and critical manufacturing environments.

What are the key features of SolaHD products?

SolaHD products offer comprehensive industrial power quality solutions that convert, clean, and maintain electric current throughout manufacturing facilities. Key features include noise and surge protection, voltage regulation, drive protection, and uninterruptible power supplies (UPS). Their product lines cover everything from service entrance to point-of-use, with compact DIN rail mountable options that provide flexible, space-saving power solutions for sensitive industrial equipment like PLCs, networks, and control systems.

What environmental ratings do SolaHD products have?

SolaHD products feature robust environmental ratings including NEMA Type 1, 2, 3, 4, 4X, 12, and 13 classifications, as well as IP66 protection. These ratings ensure comprehensive protection against dust, water, and corrosion in both indoor and outdoor environments, with operating temperatures ranging from -40°C to 130°C.

What accessories are available for SolaHD products?

SolaHD offers a comprehensive range of accessories across multiple product lines, including surge protective devices (SPD), tracking filters, power supplies, UPS systems, and DIN rail mountable components. Key accessories include the STV100K Surge Protective Device, STFV Plus Series Tracking Filters, SDN and SCP Series Power Supplies, SDU Series UPS, and various DIN rail filters and converters that can be integrated into industrial control panels and power systems.

How are SolaHD products typically installed?

SolaHD products are typically installed on DIN rail mounting systems in industrial control panels, with multiple installation options including panel/wall mounting brackets. Most products feature easy-to-wire screw terminations, making them suitable for critical industrial applications like factory automation, PLCs, robotics, and computer-based control systems. The products are designed for flexible installation across various industrial environments, with wide operating temperature ranges from -20°C to +50°C and compact, rugged industrial designs.