Littelfuse SH75 SH Series Surf...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$40.90
Littelfuse SH75 SH Series Surface Mount Gas Discharge Tube Surge Arrestor

Littelfuse SH75 SH Series Surface Mount Gas Discharge Tube Surge Arrestor

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Model: SH-75

In Stock (leaves warehouse same day if ordered before 3pm ET)

$40.90
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Littelfuse SH75 SH Series Surface Mount Gas Discharge Tube Surge Arrestor

The Littelfuse SH75 SH Series is a surface mount gas discharge tube (GDT) surge arrestor engineered to protect sensitive broadband and telecom circuits from transient voltage surges. Featuring a nominal DC sparkover voltage of 75V, an impulse discharge current rating of 5kA (8/20µs), and ultra-low capacitance of 0.5pF, this compact device delivers reliable surge protection in a squared surface mount footprint measuring just 5.0×5.0×4.2mm. Its low, stable capacitance makes it well suited for high-speed data and Ethernet port protection applications where signal integrity matters.

Key Features

  • Surface Mount Form Factor: Squared body and terminals in a compact 5.0×5.0×4.2mm footprint for space-constrained PCB layouts.
  • Ultra-Low Capacitance: Less than 0.7pF (0.5pF typical) that remains stable as signal voltage varies, preserving high-speed signal integrity.
  • 5kA Surge Capability: Impulse discharge current rating of 5kA at 8/20µs in a minimal footprint for robust transient protection.
  • Nominal DC Sparkover Voltage: 75V nominal, with a minimum sparkover of 60V and maximum DC sparkover of 90V.
  • Impulse Sparkover Voltage: Maximum of 700V at 100V/µs for fast-rising transient events.
  • Two-Electrode Construction: Standard two-electrode gas discharge tube design, non-failsafe.

Technical Specifications

  • Failsafe: No
  • Electrodes: 2
  • Max DC Spark over Voltage: 90
  • Max Impulse Sparkover Voltage @ 100V/us (V): 700
  • Capacitance (Co) (pF): 0.5
  • Surge Life (@ 100A 10/1000us): 5
  • Nom DC Sparkover (V): 75
  • Impulse Discharge Current @8/20µs (kA): 5
  • MIN Sparkover Voltage (V): 60

Typical Applications

  • Broadband Equipment
  • Satellite, CATV Equipment and Set-Top Boxes
  • G.Fast, xDSL, 10GbE, and 10/100/1000 BaseT Ethernet Port Protection
  • Industrial Automation
  • Ethernet, RS-485, and RS-232 Interfaces
  • Power Inverter and Variable Frequency Drive (VFD) Protection

Why Littelfuse?

Littelfuse engineers the SH Series to deliver dependable surge protection for demanding broadband, telecom, and industrial applications. With a compact surface mount design, ultra-low and stable capacitance, and a 5kA surge rating, the SH75 gives designers a space-efficient way to safeguard sensitive electronics against transient voltage events without compromising signal performance.

Manufacturer Resources

Littelfuse Product Catalog

Product Specs

Product Type:
Gas Discharge Tube
Configuration:
Surface Mount
Voltage Rating:
75V
Amperage Rating:
5kA
Series:
SH Series
Department:
Electrical
Product Group:
Wiring Devices

Littelfuse SH-75 – Frequently Asked Questions

How fast can I get the Littelfuse SH-75 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Littelfuse SH-75 come with a warranty?
Absolutely. The Littelfuse SH-75 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Littelfuse SH-75?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Littelfuse SH-75 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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