Littelfuse Inc. Logo

Littelfuse Inc.

Littelfuse is a global leader in circuit protection, power control, and sensing technologies, serving over 100,000 end customers worldwide. Beyond its foundational POWR-SPEED high-speed semiconductor fuses and automotive blade fuses, Littelfuse offers a comprehensive portfolio of TVS diodes, varistors, GDTs, SIDACtor protection thyristors, and resettable PPTCs. Through the IXYS acquisition, the company also supplies SiC MOSFETs and diodes (650V-1700V), IGBTs, power modules, and thyristor modules for motor drives, EV charging, renewable energy, and industrial automation. icboms supplies Littelfuse circuit protection and power semiconductors from Shenzhen.

Shenzhen Sourcing Desk5012partsTurnkey BOM ProcurementPre-shipment Photo QC & DAP/DDP Delivery
Obsolete & EOL Littelfuse Inc. parts7
Shenzhen Sourcing Desk RealityIndependent Littelfuse Inc. Supply

Direct Sourcing Desk for SMAJ/SMBJ TVS Diodes, PolySwitch PTCs & Gas Discharge Tubes

Littelfuse is the global benchmark in mission-critical circuit protection. Google Trends confirms an +110% search surge for Littelfuse TVS diodes across industrial automation and automotive applications. Protecting microcontrollers and power rails against destructive electrostatic discharge (IEC 61000-4-2) and lightning surges (IEC 61000-4-5) requires authentic, uncompromised silicon. ICBOMS provides verified in-stock Littelfuse TVS arrays and PolySwitch fuses directly from Shenzhen.

Supported Littelfuse Inc. Product Families & Focus Series
  • SMAJ5.0A / SMAJ12A / SMAJ24A / SMAJ36A 400W Unidirectional & Bidirectional TVS Diodes (DO-214AC)
  • SMBJ5.0A / SMBJ15A / SMBJ24A / SMBJ36CA 600W Transient Voltage Suppressor Diodes (DO-214AA)
  • SMCJ series 1500W High-Energy Industrial & Automotive Clamping Diodes
  • SP0503BAHTG / SP3004 series Multi-Channel Ultra-Low Capacitance USB/Ethernet ESD Arrays
  • PolySwitch SMD Resettable PTC Fuses (1206L, 1812L series) for Overcurrent Fault Protection
Lead Time Reality

Franchised allocation cycles regularly push high-voltage and bidirectional TVS diodes to 20–32 week lead times. ICBOMS maintains active Shenzhen buffer stock across standard 5V, 12V, 24V, and 36V clamp voltages ready for immediate dispatch.

Counterfeit Prevention

Suspect commodity diodes: low-surge domestic rectifier dies laser-remarked as high-joule Littelfuse TVS suppressors, leading to explosive component failure under real-world overvoltage spikes. We verify lead frame stamping, inspect laser font contrast, and verify reel packaging barcodes.

Packaging & SMT Traceability

Supplied in original sealed embossed tape-and-reel (3,000 to 5,000 pcs per 13-inch reel) with full manufacturer traceability for automated PCBA production.

Verified Drop-In Pin-to-Pin Cross References:

Footprint and surge cross-references available between Littelfuse (SMAJ/SMBJ), Vishay (TransZorb), BrightKing, and Yangjie for immediate PCB assembly continuity.

BOM Line-Matching: Within 24 hoursQuality: 100% EVI & Marking WipeDispatch: Worldwide Door-to-Door DAP / DDP from Shenzhen
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