SMAJ20A 二极管 Littelfuse

SMAJ20A      Transient Voltage Suppression Diodes

Surface Mount – 400W > SMAJ series

ESD 抑制器/TVS 二极管 20Vr 400W 12.3A 5% UniDirectional

Description  SMAJ20A

The SMAJ series is designed specifically to protect

sensitive electronic equipment from voltage transients

induced by lightning and other transient voltage events.

Features  SMAJ20A

• 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 maximun

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)

Applications    SMAJ20A

TVS devices are ideal for the protection of I/O Interfaces,  VCC bus and other vulnerable circuits used in Telecom,  Computer, Industrial and Consumer electronic  applications.