SMF40A

Littelfuse
576-SMF40A
SMF40A

Mfr.:

Description:
ESD Protection Diodes / TVS Diodes 200W 40V 5% Uni-directional

Datasheet:
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Learn more about Littelfuse SMF40A

Product Attribute Attribute Value Select Attribute
Littelfuse
Product Category: ESD Protection Diodes / TVS Diodes
RoHS:  
Unidirectional
1 Channel
40 V
SMD/SMT
64.5 V
44.4 V
SOD-123-2
3.1 A
200 W
30 kV
30 kV
- 65 C
+ 150 C
SMF
Reel
Cut Tape
MouseReel
Brand: Littelfuse
Pd - Power Dissipation: 1 W
Factory Pack Quantity: 3000
Subcategory: ESD Protection Diodes / TVS Diodes
Unit Weight: 71.300 mg
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Attributes selected: 0

Datasheet

PCN

Compliance Codes
CNHTS:
8541590000
TARIC:
8541100000
CAHTS:
8541100090
USHTS:
8541100080
JPHTS:
854110090
KRHTS:
8541109000
MXHTS:
8541100199
BRHTS:
85411029
ECCN:
EAR99
Origin Classifications
Country of Origin:
China
Assembly Country of Origin:
Not available
Country of Diffusion:
Not available
The country is subject to change at the time of shipment.

LED Lighting Solutions

Littelfuse LED Lighting Solutions support all facets of the LED lighting market with innovative solutions that not only meet regulatory standards but also increase equipment safety and reliability. To help protect end-users, Littelfuse works closely with many LED driver IC suppliers, to ensure their evaluation boards and reference designs comply with safety and surge immunity requirements. They also assist LED lighting power supply manufacturers in designing optimal protection schemes for their driver modules. At the OEM level, they cooperate with luminaire and lamp manufacturers to ensure their products are optimally designed for robust surge immunity protection.

Electrical Vehicle AC Chargers

Littelfuse provides a wide range of products that are suitable for Electric Vehicle AC Chargers. Although simpler in nature compared to DC chargers, AC charging stations safely deliver AC power from the electrical grid into the vehicle. Due to space and weight constraints in the vehicle, on-board chargers and AC charging stations are typically limited to lower amounts of power (22kW or less), which means charging time is slow – taking several hours. These systems also rely on a vehicle’s on-board charger to enable the conversion of AC power from the grid into DC power to charge the vehicle’s battery. It’s critical that proper measures are taken to safeguard both the charger and vehicle.

Transient Voltage Suppressor (TVS) Diodes

Littelfuse TVS (Transient Voltage Suppression) Diodes are a broad range of circuit protection products designed to protect electronic circuits against transients and overvoltage threats such as EFT (electrically fast transients) and ESD (electro-static discharge). Lightning strikes, inductive load switching, and ESD cause electrical over-stresses associated with the transmission on data lines and electronic circuits. Offered in a variety of surface mount and through-hole circuit board mounting formats, the TVS Diode portfolio includes high peak pulse current and peak pulse power options up to 20kA and 30kW, respectively. Littelfuse TVS Diodes are chosen for the fast response time (low clamping voltage), lower capacitance, and low leakage current. TVS Diodes are available in both unidirectional (unipolar) or bidirectional (bipolar) diodes circuit configurations. 

Drone Subsystems

Littelfuse Drone Subsystems offer solutions for USB-C PD and Li-ion battery chargers, battery pack systems, and BLDC motors. These subsystems offer fuses for various functions, including AC input overcurrent protection and fault isolation, protection of the battery and downstream controller, pack, wiring, and controller. The drone subsystems provide TVS diodes for primary-side switching transient suppression and cell monitor IC sense line input overvoltage protection. These subsystems are appropriate for various drones, including toy, camera, First-Person View (FPV), enterprise, industrial, Intelligence, Surveillance, and Reconnaissance (ISR), inspection/mapping, agriculture, and heavy lift. Typical applications include delivery/logistics, public safety, border surveillance, and military.

Medical Equipment Solutions

Littelfuse Medical Equipment Solutions provide robust designed and quality components needed to help with reliable operating and equipment up-time. These solutions include ventilators, defibrillator, and ultrasounds. Littelfuse Medical Equipment Solutions are ideal for life support systems, patient care equipment, and patient monitoring systems.

Heat Pumps

Littelfuse provides a broad portfolio of components for heat pumps, including fuses, TVS diodes, gate drivers, and more. The heat pump market is growing quickly, driven by government initiatives to reduce greenhouse gas emissions and rising energy costs. With inverter-driven motors improving system efficiencies, heat pumps can now be used in a wide range of climates. Learn how Littelfuse technologies make heat pumps safer, more reliable, and more energy efficient. Heat pumps can be used in a wide range of climates due to the inverter-driven motors improving system efficiencies. These components are suitable for various applications such as energy management, security systems, HVAC systems, smoke detectors, and IoT-controlled appliances. Littelfuse offers protect, control, and sense technologies to improve buildings' reliability, safety, and energy efficiency.

Smart Thermostat Solutions

Littelfuse Smart Thermostat Solutions components allow designers to implement Internet of Things (IoT) solutions to boost energy efficiency and monitor energy usage. Littelfuse Smart Thermostat solutions complement other Smart Building features, including safety and security systems.

Auxiliary Power Supply

Littelfuse offers numerous products designed for Auxiliary Power Supply, including Silicon Carbide (SiC) MOSFETs, gate drivers, and TVS diodes. The LSIC1MO170T0750 SiC MOSFET is a 1700V device optimized for high-frequency, high-efficiency applications and features a low 11nC gate charge, low 11.5pF output capacitance, and a low 29Ω gate resistance for high-frequency switching. The IX4351NE gate driver offers an internal negative charge regulator, providing a selectable negative gate drive bias for improved dV/dt immunity and faster turn-off. The TVS diodes include the SMF and 1.5SMC series designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

SMF Uni/Bi-Directional SMD TVS Diodes

Littelfuse SMF Uni/Bi-Directional SMD TVS Diodes are designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The SMF package (SOD-123FL) offers a 50% smaller footprint than the SMA package and delivers a low 1.1mm height. The SMF components are ideal for the protection of I/O interfaces, VCC bus, and other vulnerable circuits used in cellular phones, portable devices, business machines, power supplies, and other consumer applications.

Electrical Vehicle DC Fast Chargers

DC charging stations are designed to convert the electrical grid’s AC power into DC power that can then be fed directly into a vehicle’s battery system for fast charging – in 30 minutes or less. Because the conversion from AC to DC power is being done in the charging station, these units can provide higher levels of power (50kW to 350kW and beyond) to the vehicle compared to AC charging stations. Working with tens to hundreds of kilowatts of power, efficient conversion, reliability of the system, and user safety are critical.

Consumer Drone Systems

Littelfuse Consumer Drone Systems offer solutions for battery chargers, battery systems, and payload systems. These systems provide Schottky diodes for output rectification/reverse blocking, TVS diodes for secondary protection against voltage transients, and fuses to protect the power stage from overcurrent. The systems offer USB-C® for consumer drones with a 5V to 48V range and up to 240W (typical 100W to 140W), and provide battery protection for <60V. Typical applications include photography/video, FPV racing, and recreational flying.

Battery Management System Solutions

Littelfuse Battery Management System Solutions features components that protect against overcurrents, surges, and electrostatic discharge (ESD) that threaten the safe operation of battery management systems (BMS) in industrial tools and robotics, as well as e-mobility, mobile, and wearable applications. These systems regulate battery performance and communicate with energy management systems to keep batteries safe and operational. Littelfuse Battery Management System Solutions include fuses, TVS diodes, diode arrays, single-cell batteries, multi-cell batteries, solid state relays, and more.

In Stock: 65,133

Stock:
65,133
Can Dispatch Immediately
On Order:
15,000
Expected 2026/10/26
Factory Lead Time:
20
Weeks Estimated factory production time for quantities greater than shown.
Minimum: 1   Multiples: 1
Unit Price:
$-.--
Ext. Price:
$-.--
Est. Tariff:
Packaging:
Full Reel (Order in multiples of 3000)

Pricing (USD)

Qty. Unit Price
Ext. Price
Cut Tape / MouseReel™ †
$0.52 $0.52
$0.238 $2.38
$0.204 $20.40
$0.156 $78.00
$0.143 $143.00
Full Reel (Order in multiples of 3000)
$0.098 $294.00
$0.086 $774.00
† A MouseReel™ fee of $7.00 will be added and calculated in your basket. All MouseReel™ orders are non-cancellable and non-returnable. ↩

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