SMAJ440A datasheet(65/146 Pages) LITTELFUSE

部件名	SMAJ440A

功能描述	TVS Diode Products

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制造商	LITTELFUSE [Littelfuse]

网页	http://www.littelfuse.com

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Speciﬁcations are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

Transient Voltage Suppression Diodes

5.0SMDJ Series

Surface Mount – 5000W > 5.0SMDJ series

0.1

1

10

100

1000

0.000001

0.00001

0.0001

0.001

t

d-Pulse Width (Sec.)

0.0000001

0.31x0.31" (8.0x8.0mm)

Copper Pad Area

Ratings and Characteristic Curves (T

A=25°C unless otherwise noted)

0

50

100

150

1.0

2.0

3.0

4.0

tr=10μsec

Peak Value

IPPM

2

TJ=25°C

Pulse Width(td) is deﬁned

as the point where the peak

current decays to 50% of IPPM

10/1000μsec. Waveform

as deﬁned by R.E.A

td

t-Time (ms)

Half Value

IPPM

( )

0

20

40

60

80

100

0

25

50

75

100

125

150

175

T

A-Ambie nt te mperature (ºC)

1

10

100

1000

10000

100000

1.0

10.0

100.0

1000.0

V

BR - Reverse Breakdown Voltage (V)

Bi-direct ional V= OV

Uni-direct ional @ VR

Bi-direct ional @ VR

Uni-direct ional V= OV

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

6

6.5

0

25

50

75

100

125

150

175

T

A-Ambient Temperature (ºC)

Figure 1 - Peak Pulse Power Rating Curve

Figure 2 - Pulse Derating Curve

Figure 3 - Pulse Waveform

Figure 4 - Typical Junction Capacitance

Figure 5 - Steady State Power Derating Curve

1

10

100

Number of Cycles at 60 Hz

0

50

100

150

200

250

300

350

Figure 6 - Maximum Non-Repetitive Peak Forward

Surge Current Uni-Directional Only

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制造商	部件名	数据表	功能描述
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Shenzhen Luguang Electr...	SMAJ440A	226Kb / 4P	400Watts Surface Mount Transient Voltage Suppressor
Shenzhen Luguang Electr...	SMAJ440A	2Mb / 4P	Transient Voltage Suppressors Revision:20170301-P1

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