SMAT70A_1 datasheet(1/3 Pages) DIODES

Part #	SMAT70A

Description	400W, 600W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

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Manufacturer	DIODES [Diodes Incorporated]

Direct Link	http://www.diodes.com

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DS30213 Rev. 7 - 2

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SMAT70A/SMBT70A

www.diodes.com

ã Diodes Incorporated

SMAT70A/SMBT70A

400W, 600W SURFACE MOUNT TRANSIENT

VOLTAGE SUPPRESSOR

Maximum Ratings @ TA = 25°C unless otherwise specified

Characteristic

Symbol

SMAT70A

SMBT70A

Unit

Peak Pulse Power Dissipation

(Non repetitive current pulse derated above TA =25

°C)

PPK

400

600

W

Peak Forward Surge Current, 8.3ms Single Half Sine

Wave Superimposed on Rated Load (JEDEC Method)

(Note 2)

IFSM

40

100

A

Instantaneous Forward Voltage @ IPP = 35A

(Note 2)

VF

3.5

V

Operating and Storage Temperature Range

Tj,TSTG

-55 to +150

°C

Features

·

Case: SMA/SMB

·

Case Material: Molded Plastic. UL Flammability

Classification Rating 94V-0

·

Moisture Sensitivity: Level 1 per J-STD-020C

·

Terminals: Lead Free Plating (Matte Tin Finish).

Solderable per MIL-STD-202, Method 208

·

Polarity Indicator: Cathode Band

·

Marking: Date Code (See Page 3) and Marking Code (See

Page 1)

·

Ordering Information: See Page 3

·

Weight: SMA 0.064 grams

SMB 0.093 grams

·

400, 600W Peak Pulse Power Dissipation

·

70V Standoff Voltage

·

100V Maximum Clamping Voltage -

A requirement of many -48V Backplane Telecom

Applications

·

Glass Passivated Die Construction

·

Fast Response Time: Typically less than 1 ps

·

Lead Free Finish/RoHS Complaint (Note 4)

Mechanical Data

A

B

C

D

G

H

E

J

Part Number

Reverse

Standoff

Voltage

Breakdown

Voltage

VBR @ IT

(Note 3)

Test

Current

Max.

Reverse

Leakage @

VRWM

Max.

Clamping

Voltage @

Ipp

Max. Peak

Pulse

Current

Ipp

Typical

Junction

Capacitance

(Note 3)

Typical

Voltage

Temp.

Variation

of VBR

Marking

Code

VRWM (V)

Min

(V)

Max

(V)

IT (mA)

IR (

mA)

VC (V)

(A)

(pF)

mV/

°C

SMAT70A

70

77.8

89.5

1.0

5.0

100

3.5

140

80

KEX

SMBT70A

70

77.8

89.5

1.0

5.0

100

5.3

290

80

NPX

Notes:

1. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum.

2. VBR measured with IT current pulse = 300

ms.

3. f = 1MHz, VR = 0VDC.

4. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see

EU Directive Annex Notes 5 and 7.

Package

SMAT70A

SMBT70A

SMA

SMB

Dim

Min

Max

Min

Max

A

2.29

2.92

3.30

3.94

B

4.00

4.60

4.06

4.57

C

1.27

1.63

1.96

2.21

D

0.15

0.31

0.15

0.31

E

4.80

5.59

5.00

5.59

G

0.10

0.20

0.10

0.20

H

0.76

1.52

0.76

1.52

J

2.01

2.62

2.00

2.62

SMA, SMB

@TA = 25°C unless otherwise specified

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