SMAJ15A TVs Diodes: Features, Pinout, and Datasheet

The SMAJ15A is created to protect sensitive electronic equipment against voltage transients such as those caused by lightning and other transient voltage events.

Surge and ESD protection is provided by the SMAJ series Transient Voltage Suppressor Diode  . The device has a working peak reverse voltage range of 5V to 495V, as well as a breakdown voltage range of 550V. From 0V to minimal breakdown voltage, typical quick response times for unidirectional devices are less than 1-picosecond and less than 5-picosecond for bidirectional devices. It complies with  JEDEC  requirements, is simple to handle with ordinary pick and place equipment, and its flat design reduces roll-away.

The following figure is SMAJ15A Pinout.

Pinout

The following figures are SMAJ15A Symbol, Footprint and 3D Model.

Symbol

Footprint

3D Model

• 400W Power dissipation

• -55 to 150°C Operating temperature range

• 400W Peak pulse power capability at 10/1000µs waveform, repetition rate (duty cycle): 0.01%

• Excellent clamping capability

• Typical IR less than 1μA when VBR min>12V

• For surface mounted applications to optimize board space

• Low profile package

• Typical failure mode is short from over-specified voltage or current

• Whisker test is conducted based on  JEDEC 

JESD201A per its table 4a and 4c

• IEC-61000-4-2  ESD  30kV(Air), 30kV (Contact)

• ESD protection of data lines in accordance with  IEC  61000-4-2

• EFT protection of data lines in accordance with IEC 61000-4-4

• Built-in strain relief

• Fast response time: typically less than 1.0ps from 0 Volts to VBR min

• Glass passivated junction

• Low inductance

• High temperature to reflow soldering guaranteed: 260°C/40sec

• VBR @ TJ= VBR@25°C x (1+αT x (TJ - 25))(αT:Temperature Coefficient, typical value is 0.1%)

• Plastic package is flammability rated V-0 per  Underwriters Laboratories 

• Meet MSL level1, per J-STD-020, LF maximum peak of 260°C

• Matte tin lead–free Plated

• Halogen-free and  RoHS  compliant

• Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/JEDEC J-STD-609A.01)

Littelfuse Inc. SMAJ15A technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. SMAJ15A.

The following figure is SMAJ15A Functional Diagram.

Functional Diagram

The following figure is SMAJ15A Part Numbering System.

Part Numbering System

The following figure is SMAJ15A Part Marking System.

Part Marking System

• The Protection of I/O Interfaces

• VCC Bus and Other Vulnerable Circuits Used in Telecom

• Industrial

• Consumer Electronic Applications

• Communications & Networking

• Computers & Computer Peripherals

• Imaging

• Video & Vision

The following figure is SMAJ15A Package.

Package

Littelfuse, Inc. is an electronic manufacturing company situated in Chicago, Illinois. The company's major focus is circuit protection, although it also develops electronic switches and car sensors. Littelfuse first opened its doors in 1927. In addition to its world headquarters in Chicago, Illinois, Littelfuse has more than 40 sales, distribution, production, and engineering offices throughout the Americas, Europe, and Asia.

Download datasheets and manufacturer documentation for Littelfuse Inc. SMAJ15A.