SMAJ7.0A Littelfuse Inc, SMAJ7.0A Datasheet

SMAJ7.0A

Manufacturer Part Number

SMAJ7.0A

Description

DIODE TVS 7.0V 400W UNI 5% SMA

Manufacturer

Littelfuse Inc

Series

SMAJr

Datasheet

1.4879768.pdf (5 pages)

Specifications of SMAJ7.0A

Package / Case

DO-214AC, SMA

Voltage - Reverse Standoff (typ)

Voltage - Breakdown

7.78V

Power (watts)

400W

Polarization

Unidirectional

Mounting Type

Surface Mount

Polarity

Unidirectional

Channels

1 Channel

Clamping Voltage

12 V

Operating Voltage

7 V

Breakdown Voltage

7.78 V

Termination Style

SMD/SMT

Peak Surge Current

33.3 A

Peak Pulse Power Dissipation

400 W

Maximum Operating Temperature

+ 150 C

Minimum Operating Temperature

- 65 C

Dimensions

2.79 mm W x 4.5 mm L x 2.29 mm H

Lead Free Status / RoHS Status

Lead free by exemption / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free by exemption / RoHS Compliant

Other names

SMAJ7.0ALFTR

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Notes:

1. Non-repetitive current pulse, per Fig.3 and derated above T

2. Mounted on 5.0x5.0mm copper pad to each terminal.

3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional

4. V

Speciﬁcations are subject to change without notice.

Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information.

Agency Approvals

Maximum Ratings and Thermal Characteristics

Parameter

Peak Pulse Power Dissipation at

(Fig.1)(Note 1), (Note 2)

Power Dissipation on inﬁnite heat

sink at T

Peak Forward Surge Current, 8.3ms

Single Half Sine Wave (Note 3)

Maximum Instantaneous Forward

Voltage at 25A for Unidirectional

only (Note 4)

Operating Junction and Storage

Temperature Range

Typical Thermal Resistance Junction

to Lead

Typical Thermal Resistance Junction

to Ambient

device only.

AGENCY

=25ºC by 10x1000μs waveform

< 3.5V for V

RoHS

=25

C unless otherwise noted)

=50

SMAJ Series

200V and V

< 6.5V for V

AGENCY FILE NUMBER

E230531

201V.

Symbol

, T

M(AV)

FSM

PPM

uJL

uJA

STG

=25ºC per Fig. 2.

Transient Voltage Suppression Diodes

Surface Mount – 400W > SMAJ series

-65 to 150

3.5V/6.5

Value

400

120

3.3

°C/W

Unit

Revision: January 09, 2009

°C

Description

The SMAJ series is designed speciﬁcally to protect

sensitive electronic equipment from voltage transients

induced by lightning and other transient voltage events.

Features

Applications

TVS devices are ideal for the protection of I/O Interfaces,

Computer, Industrial and Consumer electronic applications.

applications to optimize

board space

capability

capability at 10 x 1000μs

waveform, repetition rate

(duty cycle): 0.01%

bus and other vulnerable circuits used in Telecom,

above 12V

temperature coefﬁcient

ΔV

typically less than 1.0ps

from 0 Volts to V

soldering: 260°C/40

seconds at terminals

Underwriters Laboratory

Flammability 94V-O

Plated

= 0.1% x V

less than 1μA

@25°C x ΔT

SMAJ Series

min

Related parts for SMAJ7.0A

SMAJ7.0A Summary of contents

Page 1

SMAJ Series RoHS Agency Approvals AGENCY AGENCY FILE NUMBER E230531 Maximum Ratings and Thermal Characteristics (T = unless otherwise noted) A Parameter Symbol Peak Pulse Power Dissipation at T =25ºC by 10x1000μs waveform P A PPM (Fig.1)(Note 1), ...

Page 2

Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Electrical Characteristics Part Part Marking Number Number (Uni) (Bi) UNI BI SMAJ5.0A SMAJ5.0CA AE WE SMAJ6.0A SMAJ6.0CA AG WG SMAJ6.5A SMAJ6.5CA AK WK SMAJ7 .0A SMAJ7 .0CA AM WM ...

Page 3

Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 1 - Peak Pulse Power Rating Curve 10 1 0.2x0.2" (5.0x5.0mm) Copper Pad Area 0.1 0.000001 0.00001 0.0001 t -Pulse Width (sec.) d Figure 3 - Pulse Waveform 150 ...

Page 4

Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Soldering Parameters Reﬂow Condition - Temperature Min (T ) s(min) Pre Heat - Temperature Max (T ) s(max) - Time (min to max Average ramp up ...

Page 5

Part Numbering System SMAJ XXX VOLTAGE TOLERANCE BI-DIRECTIONAL VOLTAGE SERIES Packaging Component Part number Quantity Package SMAJxxxXX DO-214AC 5000 ©2009 Littelfuse, Inc. Speciﬁcations are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information. Transient ...

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