This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.
SG420 Image
SG420 Image
3d-img SG420 Image

Images are for reference only See technical specifications

SG420

In Stock: 6,666

1kA 420V 2 1812 Gas Discharge Tube (GDT) ROHS

SG420 Information

Description

The SG420 from Littelfuse is an inrush current limiter designed for high power applications. Key features include:
Fast switching with rise/fall times below 500 ps.
High isolation and common mode rejection ratio.
Compact surface mount package (1812) for easy integration. The SG420 finds application in communication equipment, CATV systems, text equipment, power supplies, and broadband devices. It helps protect sensitive components from sudden current surges during device startup.

Features

The SG420 by Littelfuse offers several key features:
Fast switching with rise/fall times <500 ps & <1 ns, respectively.
High current capacity, capable of handling up to 5A sustained current.
Pulse width modulation (PWM) capability for precise control over electrical signals.
Surface mount package, designed for easy integration in electronic circuits. These features make the SG420 suitable for various applications in communication and broadband equipment.

Package

The package type of SG420 is 1812, which corresponds to a 4532 Metric size.

Pinout

The product information provided does not include the specific pin count and function for SG42
To get this information, you would need to consult LITTELFUSE's datasheet or official documentation for SG420.

Manufacturer

The manufacturer of the SG420 is LiteFuse, a company that specializes in designing and producing electronic components, particularly fuses and power protection devices. LiteFuse is known for its innovation and industry presence.

Applications

The SG420 is an inrush current limiter designed for various telecom applications, including communication equipment, CATV, power supplies, and broadband devices. Its key features help protect sensitive circuits from sudden surges in current.

Equivalent

The SG420 from Littelfuse has equivalents in various inrush current limiters with similar ratings such as low ESR, fast switching, high power density handling, and compatibility with communication equipment or telecom SLIC protection.

Specifications

MIN Sparkover Voltage (V) 315 Nom DC Sparkover (V) 420
Max DC Spark over Voltage 525 Max Impulse Sparkover Voltage @ 100V/us (V) 800
Max Impulse Breakdown Voltage @ 1kV/us (V) 1000 Insulation Resistance 1
Capacitance (Co) (pF) 1 Impulse Discharge Current @8/20μs (kA) 1
Electrodes 2 Failsafe No
Insulation Resistance (Voltage Rating) 1 Packaging Method T&R
Operating Temperature -40° to 90°C Package/Case 1812 (4532 metric)

SG420 FAQs

1.Q: What is the typical impulse discharge current rating of Littelfuse SG series GDT?

A: It can handle 1kA (8/20μs pulse) for 10 surges without failure.

2.Q: What is the operating temperature range of Littelfuse SG series GDT?

A: It operates from -40°C to +90°C.

3.Q: Does Littelfuse SG series GDT support automotive applications?

A: No, this GDT is not automotive-qualified (Automotive: No, PPAP: No).

4.Q: What is the typical DC sparkover voltage of Littelfuse SG series GDT?

A: The typical DC sparkover voltage is 420V at 100V/s.

5.Q: What is the package size of Littelfuse SG series GDT?

A: It comes in a surface-mount 1812 (4532 Metric) package with dimensions 4.5mm (L) x 3.2mm (W) x 2.7mm (H).

6.Q: What is the maximum impulse sparkover voltage of Littelfuse SG series GDT at 1kV/s?

A: The maximum impulse sparkover voltage is 1000V at 1kV/s.

7.Q: What are the typical applications for Littelfuse SG series GDT?

A: It’s ideal for protecting broadband equipment (e.g., ADSL2+), telecom circuits, and other surge-sensitive electronics due to its low insertion loss and robust surge diversion.

8.Q: What are the key features of Littelfuse SG series GDT?

A: Key features include high surge ratings (1000A pulse handling), miniature SMD package (4.5x3.2x2.7mm), low capacitance (1pF max), and stable performance for broadband applications like ADSL2+.

Service Policies and Others

After-Sales & Settlement Related

payment Payment
Payment Method
hsbc
TT/Wire Transfer
paypal
Paypal
wu
Western Union
mg
Money Gram

For alternative payment channels, please reach out to us at:

[email protected]
shipping Shipping & Packing
Shipping Method
fedex
Fedex
ups
UPS
dhl
DHL
tnt
TNT
Packing

AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

Warranty Warranty
365-Day Product Quality Guarantee

We promise to provide 365 days quality assurance service for all our products.

After Sales Service

Returns and exchanges are supported, provided the items remain in their original condition.

Write a Review

You need to log in to reply.

Sign In Sign Up

Service Support

Email: [email protected]

Teams: [email protected]

Tel: +852 95804164


Qualification

iso9001 duns iso14001

Payment Methods

visa master union wu paypal

Shipping Information

  • Shipped From:

    HK warehouse

  • Expected Shipping Date:
    to

    (HKT)
  • Expected Quotation Date:

    (HKT)

  • Supplier Lead-Time:

    Call for availability

*Lead times apply to standard orders and are based on business days only. Please contact us for details.

pay transport
  • ESD

    ESD

  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray

close