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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog

Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog

Product catalog summary

Overview: Littelfuse is a leading provider of circuit protection solutions, particularly for automotive applications. The document outlines various products and services offered by Littelfuse, emphasizing their expertise in over-current and over-voltage protection.

Product Categories:

Low Current Distribution (LCD): Includes MICRO2, MICRO3, LP MINI, MINI, ATOF, MAXI, MCASE, LP JCASE, JCASE.
High Current Distribution (HCD): Features MIDI, BF1, MEGA, CF.
Advanced Power Systems: Offers high-voltage and customized fusing solutions.
Battery Cable Protection (BCP): CABLE PRO and BF-Inline products for high-power cable assemblies.
Fuse, Relay, and Specialty Modules: Modular systems for custom fuse and relay boxes.
Power Distribution: FLEC customizable pre-tooled junction boxes.
Accessories: Includes assembly and mounting tools, shunts, fuse pullers, and more.

Technical Resources: Littelfuse provides extensive technical support and resources, including application notes, testing, SPICE models, reference designs, product samples, technical articles, certification documents, and data sheets.

Environmental Commitment: Littelfuse is committed to eco-friendly product design, focusing on eliminating hazardous materials like lead, cadmium, and mercury. They adhere to RoHS compliance standards.

Specific Product Details:

MICRO2™ Blade Fuse: Designed for high-temperature environments, rated at 32 VDC with various current ratings.
MICRO3™ Blade Fuse: Features a sub-miniature design with three terminals, suitable for high-temperature environments.
Low Profile MINI® Fuses: Offers space and weight savings, rated at 58 VDC.

Applications: Littelfuse products are used in a wide range of automotive applications, including powertrain, safety, comfort, infotainment, and more.

Fuse Types and Specifications:

MINI® Blade Fuse (32V and 58V): Designed for vehicle circuit protection, offering a compact design suitable for high-temperature environments. Complies with SAE J2077, ISO 8820-3, and UL 248 standards. The interrupting rating is 1000A at the respective voltage ratings.
ATOF® Blade Fuse (32V): Standard for automotive circuit protection, easily identifiable and replaceable, suitable for low voltage applications. Complies with ISO 8820-3 and UL 248 standards.
ATO SILVER™ Fuse (32V): Similar to the ATOF® fuse, but with silver-plated terminals for enhanced performance.
MAXI® Blade Fuse (32V and 58V): Utilizes "Diffusion Pill Technology" for predictable time delay and low heat dissipation. Complies with SAE J 1888 and ISO 8820-3:2002(E).
FK1 MINI® Style Blade Fuse (32V): Features a three-part construction with copper contacts, suitable for harsh environments. Complies with ISO 8820-3:2002(E) and UL 248 standards.
FUN MINI® Style Blade Fuse (125V): Designed for higher voltage applications, filled with arc-quenching material for reliability.
FP1 MINI® Style PCB Fuse (32V): Designed for direct through-hole PCB soldering, similar in performance to the FK1 fuse.

Time-Current Characteristics: The document provides detailed time-current characteristic curves for each fuse type, indicating the opening time at various percentages of the rated current. This information is crucial for selecting the appropriate fuse for specific applications.

Ordering Information: Each fuse type includes part numbers and package sizes, facilitating easy ordering and inventory management.

Key Parameters: For each fuse, the document lists:

Current Rating
Housing Color
Typical Voltage Drop
Cold Resistance
I2t (Energy let-through)

Conclusion: This catalog serves as a comprehensive guide for selecting the appropriate blade fuses for various automotive and electronic applications, providing essential specifications and compliance information.

Specifications:

Interrupting Rating: Generally 1000A @ 32 VDC for most fuses, with some variations like 2000A for MEGA® fuses.
Operating Temperature Range: -40˚C to +125˚C.
Voltage Rating: Primarily 32 VDC, with some fuses rated at 58 VDC.
Housing Material: Typically thermoplastic or transparent nylon composite.
Terminals: Tin plated copper, with some options for silver plating.

Time-Current Characteristics:

Fuses have specific opening times based on the percentage of their rated current, ranging from milliseconds to several hours depending on the overload.
For example, at 200% of the rating, opening times can range from 3 seconds to 100 seconds for certain fuses.

Ordering Information:

Part numbers are provided for different package sizes, ranging from small quantities to bulk orders.
Specific part numbers are associated with different current ratings and package sizes.

Ratings and Dimensions:

Current ratings vary from 20A to 200A, with corresponding voltage drops, cold resistance, and I2t values provided.
Dimensions are specified in millimeters, with detailed measurements for each part number.

Compliance and Standards:

Fuses comply with ISO 8820-5 and UL 248 standards for special purpose fuses.

Additional Features:

Some fuses feature "Diffusion Pill Technology" for time delay characteristics.
MEGA® fuses are designed for ultra-high current protection, suitable for battery and alternator protection.

MEGA® Fuse Rated 32V:

Designed for high current circuit protection up to 275A using Diffusion Pill Technology.
Specifications include an interrupting rating of 2000A at 32 VDC, operating temperature range from -40°C to +125°C, and housing made of 35% GF Nylon.
Time-current characteristics are provided, showing opening times at different percentages of the rating.

BF2 Fuse Rated 32V and 58V:

Offers bolt-on fuses for high current wiring protection with ratings from 100A to 500A.
Specifications include thermoplastic housing, copper alloy terminals, and compliance with ISO 8820-5 and UL 248 standards.
Time-current characteristics detail the opening times for various current ratings.

Fuse Strips for Diesel and Battery-Powered Vehicles:

Non-housed and housed fuse strips are available for diesel and battery-powered vehicles, rated at 36V and 80V respectively.
Specifications include zinc-alloy or copper metal parts, compliance with DIN 72581/2 and UL 248 standards, and pre-arcing time limits.
Time-current characteristics provide opening times for different current ratings.

HSB Fuse Rated 32V:

Non-housed fuse strips with ring type lugs, rated for voltages up to 32 VDC and current ratings from 30A to 175A.
Specifications include zinc-alloy material and connections, with a starting torque of 4 Nm.
Time-current characteristics show opening times for various ratings.

CF Fuse Rated 58V:

Main fuse for mounting with battery clamp on the battery pole, with a voltage rating of 58 VDC and current ratings from 50A to 300A.
Features a transparent cover for visual inspection of the melting element.

PAL Fuses:

Description: Commonly used in Japanese and domestic vehicles.
Specifications: Voltage rating of 32 VDC, operating temperature range from -40°C to +125°C, and compliance with JASO 0612.
Time-Current Characteristics: Provides opening times for different percentages of rated current.
Ordering Information: Lists part numbers and package sizes.

Power Distribution Centers:

FLEC™ Flexible Electrical Center: Configurable power distribution module for heavy transportation, featuring a compact, sealed design with customizable circuit protection.
Specifications: Includes input and output terminal details, materials, and operating temperature range.
Features: High component density, input protection, and included accessories like fuse pullers and spare fuse positions.

HWB60-Sealed Hard-Wired Modules:

Description: Hard-wired module for 280 style components, allowing custom circuitry with high density and compact footprint.
Specifications: Max fuse size of 30A, 60 cavities, and compatible with 280 footprint micro & mini relays.

Bussed Power Distribution Modules:

5 Position Block Fuse Holder: Designed for ATO® style blade fuses, available in various configurations with a protective cover.
2+2 MINI® Fuse & JCASE® Holder: Accommodates two MINI® and two JCASE® fuses, providing a compact solution with internal bussing.

Junction Blocks:

Description: Used as electrical connection points for power distribution, available in feed-thru and non-feed-thru versions.
Specifications: Various thread sizes and materials, with protective stud caps available.

POWR-BLOK™ Modules:

Description: Modular system for designing electrical distribution systems, offering flexibility and customization.
Specifications: Voltage rating of 48VDC, temperature range from -40°C to +125°C, and compatibility with various fluids.

Assembly Procedures:

Identify electrical system parameters, including space, circuit protection, and special needs.
Select appropriate POWR-BLOKS components and layout the panel.
Assemble the panel by rows using BLOK LOKS to interconnect modules.
Add mounting modules suitable for the application.
Wire the panel and use TERMINAL LOKS for connections.

Product Disclaimer: Littelfuse provides the information as reliable but disclaims any liability for inaccuracies. Users are advised to verify specifications and product availability with Littelfuse sales personnel.

Component Details: The document lists various modules and accessories, including relay modules, specialty modules, and mounting accessories, with part numbers and specifications.

Key Data from Tables: The tables provide part numbers, maximum current ratings, terminal types, and dimensions for different modules and accessories. Specific part numbers are associated with particular terminal types and current ratings.

Starter Terminals: These are cable lugs designed for heavy-duty applications such as starter motors and battery connections. The document lists various part numbers, their specifications including wire size compatibility (ranging from 2.5 mm² to 95 mm²), mounting hole width, material (copper), and plating (tin).

Terminal Loks: The catalog describes different types of Terminal Loks (Type 1 to Type 8), providing part numbers and packaging sizes. These components are used in power distribution centers.

Fuse Holders: The document details several types of fuse holders, including inline, PCB mount, and splash-resistant versions for different fuse styles (MINI®, ATO®, MAXI®, JCASE®). Each type includes specifications such as wire size, fuse rating, and customization options. The inline fuse holders are available for various environments, including harsh conditions, with options for splash resistance.

Inline Fuse Holders: These are designed for different blade fuse styles, offering customization in wire length, color, and diameter. They are available with protective covers for harsh environments and are rated for different amperages (20A to 60A).

PCB Fuse Holders: These holders are designed for MINI® and ATO® style blade fuses, with specifications for mounting and connection systems. They are made from heat-resistant thermoplastic and are available in various package sizes.

Key Specifications: The document provides detailed specifications for each product, including material, plating, wire size compatibility, and ratings. It also includes ordering information with part numbers and package sizes.

Conclusion: This catalog serves as a comprehensive guide for selecting and ordering electrical components for transportation applications, emphasizing durability and customization options for various environmental conditions.

Insulating Nuts for CF8 Fuse Links:

Description: Insulating nuts designed for CF8 fuse links.
Specifications: Made from thermoplastic and duroplastic materials. Packaging varies with 250 pieces for Pos.1 and 100 pieces for Pos.2 and 3.
Ordering Information: Part numbers 255.0808.xxx1 and 255.0899.xxx1 correspond to package sizes of 250 and 100 respectively.
Ratings: Insulating nuts have different ratings based on material and design, with maximum current ratings of 300A and 150A at 23°C.

Fuse Pullers:

Description: Tools for easy removal and testing of ATO® and MINI® blade fuses, featuring an indicator light for fuse status.
Specifications: Designed for 24V maximum systems.
Ordering Information: Various part numbers available for different styles and package sizes.

Specialty Products:

Resistors, Diodes, and Shunts: Operating temperature ranges from -40°C to +85°C with various power ratings and materials.
ATS Ceramic Fuse: 36VDC torpedo-style fuses with current ratings from 5A to 25A, complying with DIN 72581-1.
Thermoplastic Fuse: Heat-resistant body with color-coded current ratings, also complying with DIN 72581-1.

Fuseology:

Introduction: Overview of fuses as current-sensitive devices designed to protect circuits by melting under overcurrent conditions.
Types of Overcurrents: Includes overloads and short circuits, with explanations of their causes and effects.
Fuse Selection Parameters: Key considerations include voltage rating, interrupting rating, time-current characteristics, current rating, and transient overcurrent considerations.
Time-Current Characteristics: Explanation of how fuses respond to overcurrents, with graphical representations for different fuse types.

Key Sections:

I2t Values: I2t is a measure of thermal energy in fuses, crucial for determining melting, arcing, and total clearing energy. It is essential for pulse cycle withstand capability and selective coordination.
Pulse Cycle Withstand Capability: This refers to the number of electrical pulses a fuse can endure without opening, considering sufficient cooling time between pulses. Application testing is recommended to ensure fuse design can withstand specific pulse conditions.
Selective Coordination: In a coordinated system, only the fuse closest to the fault opens, preventing upstream fuses from being affected. This requires the supply side fuse's minimum melting I2t to be greater than the load side fuse's total clearing I2t.
Voltage Drop Across Terminals: High voltage drop at the fuse/terminal interface can affect fuse performance. The document provides maximum recommended voltage drops for various fuse types.
Diffusion Technology: This involves mixing metals to create alloys with lower melting points, enhancing fuse characteristics like time delay and reducing voltage drop.
Matching Wire Gauge to Fuse: Proper selection of wire gauge and fuse is crucial to protect wiring under overload and short circuit conditions. The document provides guidelines for selecting wire gauge based on ambient temperature.

Product Offerings: Littelfuse offers a wide range of circuit protection products for automotive applications, including low and high current distribution fuses, advanced power systems, battery cable protection, and modular fuse holders. They provide extensive technical resources and support for application design and evaluation.

Applications: The document highlights various automotive applications for circuit protection, such as powertrain, safety, comfort, infotainment, and more, emphasizing the importance of reliable circuit protection in these areas.

Catalog excerpts

Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-1

As the world's #1 brand in circuit protection Littelfuse offers the broadest and deepest portfolio of circuit protection products and a global network of technical support, backed by more than 85 years of application design expertise. For all of your circuit protection needs visit our Technical Resources center at www.littelfuse.com/technical-resources Application Notes Application Testing SPICE Models Local Technical Support CIRCUIT PROTECTION SOLUTIONS FOR AUTOMOTIVE APPLICATIONS Reference Designs Product Samples Technical Articles Certification Documents Data Sheets Low Current Distribution (LCD) MICRO2, MICRO3, LP MINI, MINI, ATOF, MAXI, MCASE, LP JCASE, JCASE High Current Distribution (HCD) MIDI, BF1, MEGA, CF Advanced Power Systems High-voltage and customized fusing solutions Battery Cable Protection (BCP) CABLE PRO and BF-Inline products for mounting directly inline as part of a high-power cable assembly Fuse, Relay and Specialty Modules Modular system for constructing custom fuse and relay boxes for low volume applications Power Distribution FLEC Customizable pre-tooled junction boxes Accessories For assembly and mounting, shunts, fuse pullers, fuse holders terminals, terminal locks etc. F or more information, please contact your authorized Littelfuse product representative or visit our website at www.littelfuse.com © 2012 Littelfuse, Inc. Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to changes without notice. Visit www.littelfuse.com for most up-to-date technical information. FORM NO. AA101 Revision Code: AA101-v1E-0912 Automotive • Commercial Vehicle Products (CVP) Circuit Protection Solutions L ittelfuse is the world leader in circuit protection. We offer an extensive selection of circuit protection technologies for Automotive applications. Littelfuse circuit protection expert staff can assist you in designing circuit protection for your most demanding applications. Solutions for over-current applications as well as over-voltage applications are available from Littelfuse. Our offering of automotive circuit protection solutions encompasses a wide range of applications: Powertrain Automotive • Commercial Vehicle Products (CVP) Infotainment Fuse Box Power Supply Lighting Engine Management Transmission Control Cooling Fan Water Pump ABS EPAS Air Bag Chassis Control Window Lift Sun Roof Door Lock Power Seat HVAC Dashboard Navigation In-Car Entertainment Wire Harness Generator HID Headlight Headlight Leveling Directional Lighting

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-2

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-3

portfolio of Littelfuse automotive technologies, product & services Passenger Automobiles Agriculture & Construction Equipment Commercial & Recreational Vehicles Marine Aftermarket SERVICES Product Technologies Plus Application Design Evaluation Services Littelfuse is the world leader in circuit protection. We offer an extensive selection of circuit protection technologies for Automotive applications. Littelfuse circuit protection expert staff can assist you in designing circuit protection for your most demanding applications. Solutions for over-current applications as well as over-voltage...

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-4

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-5

Automotive Circuit Protection Products Helping to make the World a Cleaner Place to Live Littelfuse and the Environment As members of the global community, we at Littelfuse have always strived to understand the impact of what we do, and of what we create, on the world around us. Because of this, our concern for the environment has always been an integral and fundamental part of our business. We continually work to balance our business objectives with the need to protect and improve the local and global environment. Our Strategy for the Design of Eco-friendly Products Littelfuse has established...

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-6

Expertise Applied | Answers Delivered Blade Fuses Low Profile MINI® Fuses Rated 58V 6 Low Profile MINI® 10.9mm Fuses Rated 58V 8 MINT Blade Fuse Rated 32V 10 MINI® Blade Fuse Rated 58V 12 ATOF® Blade Fuse Rated 32V 14 ATO® Ag Blade Fuse Rated 32V 16 MAXI® Blade Fuse Rated 32V 18 MAXI® Blade Fuse Rated 58V 20 FK1 MINI® Style Blade Fuse Rated 32V 22 FUN MINI® Style Blade Fuse Rated 125V 24 FP1 MINI® Style PCB Fuse Rated 32V 25 FKS ATO® Style Blade Fuse Rated 32V 27 TAC ATO® Style Blade Fuse Rated 58V 29 FKS ATO® Style Blade Fuse Rated 80V 31 TF ATO® Style Blade Fuse Rated 90V 33 FK3 MAXI® Style...

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-7

Blade Fuses Specifications Voltage Rating: 32 VDC Interrupting Ratings: 1000A @ 32 VDC Operating Temperature Range: -40˚C to +125˚C Terminals: Ag plated zinc alloy Housing Material: PA66 Ordering Information Part Number Package Size The MICRO2™ Fuse is the new standard for vehicle circuit protection. Its sub-miniature design meets the need for more circuits to be protected while utilizing less space and its ability to cope with high temperatures in adverse environments makes the MICRO2™ Fuse the recommended choice for protection. Time-Current Characteristics Ratings Part Number Housing Color...

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Littelfuse Automotive Transportation and Commercial Vehicle Products Catalog-8

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