1N4737 [LUNSURE]

1W SILICON PLANAR ZENER DIODES; 1W的硅平面齐纳二极管


型号：	1N4737
厂家：	Lunsure Electronic
描述：	1W SILICON PLANAR ZENER DIODES 1W的硅平面齐纳二极管二极管齐纳二极管局域网
文件：	总3页 (文件大小：58K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

1N4728 THRU 1N4764

1W SILICON PLANAR ZENER DIODES

CHENYI ELECTRONICS

FEATURES

. Silicon planar power zener diodes

For use in stabilizing and clipping circuits with high power rating.

. Standaards Zener voltage toerance is

10%

Add suffix"A" for 5% tolerance Other tolerance available upon

request

MECHANICAL DATA

. Case: DO-41 glass case

.weight: Approx. 0.35 gram

ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES)(TA=25 )

Symbols

Value

Units

Zener current see table "Characteristics"

Power dissipation at TA=25

Junction temperature

1 1)

175

Ptot

-65 to +175

Storage temperature range

TSTG

1)Valid provided that a distance of 8mm from case are kept at ambient temperature

ELECTRCAL CHARACTERISTICS(TA=25 )

Symbols

RthA

Min

Typ

Max

170 1)

1.2

Units

Thermal resistance junction to ambient

Forward voltage at IF=200mA

1) Valid provided that a distance at 8mm from case are kept at ambient temperature

Page 1 of 3

1N4728 THRU 1N4764

1W SILICON PLANAR ZENER DIODES

CHENYI ELECTRONICS

1N4728…1N4764 SILICON PLANAR ZENER DIODES

Nominal

Zener

Voltage 3)

Test

Surge

Maximum

regulator

Maximum

reverse leakage current

Maximum Zener Impedance 1)

Current

current

Type

Current 2)

IZT

ZZT

at TA=0.25

IZT

ZZK

400

IZK

at VR

IZM

276

252

234

217

193

178

162

146

133

121

110

100

VZ V

3.3

3.6

3.9

4.3

4.7

5.1

5.6

6.2

6.8

7.5

8.2

9.1

IZT mA

IR A

100

1380

1260

1190

1070

970

890

810

730

660

605

550

500

454

414

380

344

304

285

250

225

205

190

170

150

135

125

115

110

1N4728

1N4729

1N4730

1N4731

1N4732

1N4733

1N4734

1N4735

1N4736

1N4737

1N4738

1N4739

1N4740

1N4741

1N4742

1N4743

1N4744

1N4745

1N4746

1N4747

1N4748

1N4749

1N4750

1N4751

1N4752

1N4753

1N4754

1N4755

1N4756

1N4757

1N4758

1N4759

1N4760

1N4761

1N4762

1N4763

1N4764

1.0

500

550

600

1.0

2.0

3.0

3.5

4.0

4.5

5.0

4.0

5.0

6.0

7.0

700

7.6

8.4

9.1

110

125

150

175

200

250

350

9.9

11.4

12.2

13.7

15.2

16.7

18.2

20.6

22.8

25.1

27.4

29.7

32.7

35.8

38.8

42.6

47.1

51.7

56.0

62.2

69.2

76.0

15.5

12.5

11.5

10.5

9.5

8.5

7.5

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.7

3.3

3.0

2.8

2.5

750

0.25

1000

1500

2000

3000

100

Notes:1) The Zener impedance is derived from the 1KHz AC voltage which results when an AC current having an RMS calue equal to 10% of the Zener

current(IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the

breakdown curve and to eliminate unstable units.

2)Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature

3)Measured under thermal equilibriun and DC test conditions.

Page 2 of 3

1N4728 THRU 1N4764

1W SILICON PLANAR ZENER DIODES

CHENYI ELECTRONICS

RATINGS AND CHARACTERISTIC CURVES 1N4728 THRI 1N4764

Admissible power dissipation versus ambient temperature

(Valid provided that leads at a distance of 10mm from case

are kept at ambient temperature)

Page 3 of 3

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