Electronic Designers Guide

Littelfuse catalogs and brochures are all exact reproductions of our printed versions. These are downloadable Acrobat PDF files. If you do not yet have this useful document viewing tool, you will need to download, install and re-start your computer before using the files.

The files below are downloadable versions of each individual chapter of the Electronic Designers Guide (EC101-I). 

Product Catalogs

EC101-J - 2005 Electronic Designers Guide (Full Catalog)
The Full Catalog PDF includes interactive hyperlinks to enhance usefulness. Caution, this is a large file (24 MB), so please allow adequate time for download. Individual sections are available below.
EC101-J - 2005 Electronic Designers Guide (Full Catalog)
EC101-J_V052505.pdf (25,898,801 bytes)
EC101 Chapter 2 - Varistor Products
EC101 Chapter 2 - Varistor Products
Chapter2MetalOxideVaristors.pdf (2,824,112 bytes)
EC101 Chapter 1 - Introduction to Circuit Protection
EC101 Chapter 1 - Introduction to Circuit Protection
Chapter1IntroductiontoCircuitProtection.pdf (4,282,771 bytes)
EC101 Chapter 3 - Surface Mount Varistors
EC101 Chapter 3 - Surface Mount Varistors
Chapter3MultilayerVaristors.pdf (3,196,489 bytes)
EC101 Chapter 4 - PulseGuard Suppressors
EC101 Chapter 4 - PulseGuard Suppressors
Chapter4PulseGuardESDSuppressors.pdf (756,760 bytes)
EC101 Chapter 5 - TVS Diode Arrays
EC101 Chapter 5 - TVS Diode Arrays
Chapter5TVSDiodeArrays.pdf (758,903 bytes)
TVS Diode Catalog
(3.5 Mb)
TVS Diode Catalog
Littelfuse_TVS_Diode_Catalog.pdf (3,670,510 bytes)
EC101 Chapter 7 - Switching Gas Discharge Tubes
EC101 Chapter 7 - Switching Gas Discharge Tubes
Chapter7ZenersandStuds.pdf (313,309 bytes)
EC101 Chapter 8 - Gas Discharge Tubes
EC101 Chapter 8 - Gas Discharge Tubes
Chapter8GasDischargeTubes.pdf (2,145,543 bytes)
EC101 Chapter 9 - Resettable PTCs
EC101 Chapter 9 - Resettable PTCs
Chapter9ResettablePTCs.pdf (561,097 bytes)
EC101 Chapter 10 - Surface Mount Fuses
EC101 Chapter 10 - Surface Mount Fuses
Chapter10SurfaceMountFuses.pdf (1,508,427 bytes)
EC101 Chapter 11 - Axial Lead and Cartridge Fuses
EC101 Chapter 11 - Axial Lead and Cartridge Fuses
Chapter11AxialLeadedandCartridgeFuses.pdf (3,464,947 bytes)
EC101 Chapter 12 - Blade Terminal and Special Purpose Fuses
EC101 Chapter 12 - Blade Terminal and Special Purpose Fuses
Chapter12BladeTerminalandSpecialPurposeFuses.pdf (875,727 bytes)
EC101 Chapter 13 - Fuseholders
EC101 Chapter 13 - Fuseholders
Chapter13Fuseholders.pdf (1,726,422 bytes)
EC101 Chapter 14 - Fuse Blocks and Clips
EC101 Chapter 14 - Fuse Blocks and Clips
Chapter14FuseblocksandClips.pdf (1,245,385 bytes)
EC101 Chapter 15 - Military Fuses and Fuseholders
EC101 Chapter 15 - Military Fuses and Fuseholders
Chapter15MilitaryFusesandFuseholders.pdf (68,052 bytes)
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