Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    5th PCNS Awards Outstanding Passive Component Papers

    TDK Releases Ultra-small PFC Capacitors

    KYOCERA AVX Releases Novel Mini BME Stacked Ceramic Capacitors

    Vishay Releases Class 1 Leaded High Voltage Ceramic Disc Capacitors

    TDK Releases 140C Compact Vibration Robust Automotive Aluminum Capacitors

    DigiKey Presents Factory Tomorrow Season 5 Video Series

    Samsung MLCCs Lineup for In-Vehicle Infotainment

    source: Samtec

    Best Practices for Cable Management in High-Speed and High-Density Systems

    Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

    Switched Capacitor Converter Explained

    Understanding Inductor Dot Markings and Their Application in LTspice

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    5th PCNS Awards Outstanding Passive Component Papers

    TDK Releases Ultra-small PFC Capacitors

    KYOCERA AVX Releases Novel Mini BME Stacked Ceramic Capacitors

    Vishay Releases Class 1 Leaded High Voltage Ceramic Disc Capacitors

    TDK Releases 140C Compact Vibration Robust Automotive Aluminum Capacitors

    DigiKey Presents Factory Tomorrow Season 5 Video Series

    Samsung MLCCs Lineup for In-Vehicle Infotainment

    source: Samtec

    Best Practices for Cable Management in High-Speed and High-Density Systems

    Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

    Switched Capacitor Converter Explained

    Understanding Inductor Dot Markings and Their Application in LTspice

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Littelfuse’s First High Power Varistor to Operate at Temperatures Up to 125C with 2500V Isolation Voltage

14.11.2016
Reading Time: 2 mins read
A A

source: Littelfuse news

Highest performance radial-leaded varistor now on the market. CHICAGO – November 8, 2016 — Littelfuse, Inc., the global leader in circuit protection, today introduced its first varistor series designed for high power applications that can operate at ambient temperatures up to 125C with 2500V isolation voltage.

RelatedPosts

5th PCNS Awards Outstanding Passive Component Papers

TDK Releases Ultra-small PFC Capacitors

KYOCERA AVX Releases Novel Mini BME Stacked Ceramic Capacitors

The HMOV™ Varistor Series’ high operating temperature is an advance made possible through the use of a new silicone coating technology. Competitive epoxy-coated varistor designs are typically limited to maximum temperatures of just 85C. The new products were announced at the company’s booth (Hall A6-Booth 153) during Electronica, the international trade fair for electronic components, systems and applications, held November 8-11, 2016, at the Munich Trade Fair Center.

The HMOV™ Varistor Series’ high operating temperature makes it possible to reduce end-product production costs by eliminating the need for an additional heat sink or potting process. The combination of high operating temperature, high surge current absorption of up to 10kA (8/20µs), reliability confirmed by a 1000-cycle thermal stress test, and high isolation voltage (2500V) make the HMOV™ Varistor Series the highest performance radial-leaded varistor series currently on the market. The series is available in disc diameters of 10mm, 14mm and 20mm.

The HMOV™ Varistor Series is best-suited for high temperature and high power DC or AC applications including:

• industrial automation controls,
• solar power inverters,
• security systems,
• fire alarm and smoke detectors,
• smart meters,
• outdoor LED lighting,
• base transceiver station (BTS) power supplies, and
• harsh environment/outdoor power supplies

“The HMOV™ Varistor Series combines the ability to operate at ambient temperatures up to 125C with superior surge current handling capability,” said Johnny Chang, Littelfuse product manager for the HMOV™ Series Varistor line. “That allows it to provide the safest, most reliable, energy-efficient and cost-saving circuit protection solution available for DC and AC applications that require higher power in extremely hot indoor and outdoor environments.”

The HMOV™ Varistor Series offers these key benefits:

  • High operating temperature of 125ºC allows the high power end products into which it’s built to run safely at higher ambient temperatures and saves costs by eliminating the need for an additional heat sink or potting process.
  • High isolation voltage (2500V) eliminates the need for additional insulation material and helps minimize PCB size by reducing the space required between the varistor and other components on the board.
  • Thermal shock testing (1000 cycles from -55ºC to +125ºC) offers enhanced reliability that can extend the lifetime of the end products.
  • Meets UL 1449 and IEC 60950-1, which supports worldwide compliance for end products.

Availability
HMOV™ Series Varistors are available in bulk, tape and reel, and ammo packaging. Depending on the rating chosen, they are available in minimum order quantities of 1,200 to 5,000 pieces. Sample requests can be placed through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit Littelfuse.com.

Related

Recent Posts

5th PCNS Awards Outstanding Passive Component Papers

14.9.2025
2

TDK Releases Ultra-small PFC Capacitors

10.9.2025
20

Vishay Releases Class 1 Leaded High Voltage Ceramic Disc Capacitors

10.9.2025
11

Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

3.9.2025
30

Bourns Releases TCO 240 Watt USB Mini-Breaker

3.9.2025
9

Littelfuse Adds 600W Automotive TVS Diodes for High-Energy Transient Protection

2.9.2025
13

Vishay Releases Harsh Environment Robust DC-Link Film Capacitor

2.9.2025
38

Bourns Releases Automotive High Creepage and Clearance Transformer

1.9.2025
31

Bourns Unveils Metal Powder Core High Current Low DCR Shielded Power Inductor

29.8.2025
35

Modelithics Release Discrete Components Optimization Article for RF/Microwave Designers

28.8.2025
15

Upcoming Events

Sep 16
17:00 - 18:00 CEST

EMI Shielding Challenges

Sep 22
September 22 @ 13:00 - September 25 @ 15:15 EDT

Pre Cap Visual Inspection per Mil-Std-883 (TM 2017)

Sep 30
September 30 @ 12:00 - October 2 @ 14:00 EDT

MIL-Std-883 TM 2010

Oct 17
12:00 - 14:00 EDT

External Visual Inspection per MIL-STD-883 TM 2009

Oct 20
October 20 - October 23

Digital WE Days 2025 – Virtual Conference

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology Explained

    0 shares
    Share 0 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • SEPIC Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Core Materials, Permeability and Their Losses

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • Premium Suppliers

© EPCI - Leading Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.
Go to mobile version