P4SMA540A datasheet(3/5 Pages) CYSTEKEC

Part #	P4SMA540A

Description	Surface Mount Transient Voltage Suppressors

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Manufacturer	CYSTEKEC [Cystech Electonics Corp.]

Direct Link	http://www.cystekec.com

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3 / 5 page

CYStech Electronics Corp.

Spec. No. : C767SA

Issued Date : 2009.05.19

Revised Date :2010.01.14

Page No. : 3/5

P4SMA6.8A thru P4SMA550CA

CYStek Product Specification

Electrical Characteristics(Cont.)

Device

Marking

Code

Breakdown

Voltage

V(BR)

(V)

1

Device

UNI

BI

Min

Max

Test

current

at IT

(mA)

Standoff

voltage

VWM

(V)

Maximum

reverse

leakage at

VWM

ID

3

(

μA)

Maximum

peak pulse

Current

IPPM

2

(A)

Maximum

clamping

voltage at

IPPM

VC

(V)

Maximum

temperature

coefficient

of

V(BR)

(%/°C)

P4SMA 220A 220A 220C

209

231

1.0

185

1.0

1.8

328

0.108

P4SMA 250A 250A 250C

237

263

1.0

214

1.0

1.7

344

0.108

P4SMA 300A 300A 300C

285

315

1.0

256

1.0

1.4

414

0.108

P4SMA 350A 350A 350C

333

368

1.0

300

1.0

1.2

482

0.108

P4SMA 400A 400A 400C

380

420

1.0

342

1.0

1.1

548

0.108

P4SMA 440A 440A 440C

418

462

1.0

376

1.0

602

0.108

P4SMA 480A 480A 480C

456

504

1.0

408

1.0

0.9

658

0.108

P4SMA 510A 510A 510C

485

535

1.0

434

1.0

0.9

698

0.108

P4SMA 530A 530A 530C 503.5 556.5

1.0

450

1.0

0.8

725

0.108

P4SMA 540A 540A 540C

513

567

1.0

459

1.0

0.8

740

0.108

P4SMA 550A 550A 550C 522.5 577.5

1.0

495

1.0

0.8

760

0.108

Note: 1.V(BR) measured after IT applied for 300μs, IT=square wave pulse or equivalent

2.Surge current waveform per Fig. 3 and derate per Fig.2

3.For bidirectional types with VWM of 10 volts and less, the ID limit is doubled

4.All terms and symbols are consistent with ANSI/IEEE C62.35

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