SM19 [WEITRON]

Surface Mount Schottky Power Rectifiers; 表面贴装肖特基整流器电源


型号：	SM19
厂家：	WEITRON TECHNOLOGY
描述：	Surface Mount Schottky Power Rectifiers 表面贴装肖特基整流器电源
文件：	总3页 (文件大小：146K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SM17 thru SM19

Surface Mount Schottky Power Rectifiers

P b

Lead(Pb)-Free

SCHOTTKY BARRIER

RECTIFIERS

Feature:

*Low Forward Voltage

*Low Switching Noise

1.0 AMPERES

20-40 VOLTS

*High Surge Capacity

*Guarantee Reverse Avalance

*Gurad-ing for Stress Protection

*Low Power Loss & High Efficiency

*125 C Operating Junction Temperature

*Low Stored Charge Majority Carrier Conduction

*Case:Epoxy,Molded

SMA(DO-214AC)

Product Description:

Using the Schottky Barrier principle with a Molybdenum barrier metal.

These state-of-are geometry features epitaxial construction with oxide

passivation and metal overlay contact. Ideally suited for low voltage,

high frequency rectification,or as free wheeling and polarity protection

diodes,in surface mount applications where compact size and weight

are critical to the system.

Unit:mm

SMA Outline Dimension

SMA

Dim

Min

2.20

4.00

1.27

0.15

4.48

0.10

0.76

1.70

Max

2.92

4.60

1.63

0.31

5.59

0.20

1.52

2.62

WEITRON

http://www.weitron.com.tw

SM17 thru SM19

Maximum Rating

Symbol

UNIT

Characteristic

SM17 SM18 SM19

Peak Repetitive Reverse Voltage

Working Peak Reverse Voltage

DC Blocking Voltage

RRM

RWM

RMS Reverse Voltage

R(RMS)

1.0

Average Rectifier Forward Current

F(AV)

Peak Repetitive Forward Current

(Rate VR,Square Wave, 20 KHz)

1.0

Non-Repetitive Peak Square Current

(Surge Applied atRated Load Condition

Halfware, Single Phase, 60Hz)

FSM

Operating and Storage Junction

Temperature Range

-65 to + 125

T ,T

STG

Electrical Characteristic

Symbol

SM17

SM18 SM19

UNIT

Characteristic

Maximum Instanatneous Forward Voltage

(IF=1.0Amp)

0.450

0.50

Maximum Instantaneous Reverse Current

(Rated DC Voltage,Tc=25 C)

0.5

(Rated DC Voltage,Tc=100 C)

Typical Junction Capacitance

(VR=4.0V, f=1.0MHz)

WEITRON

http://www.weitron.com.tw

SM17 thru SM19

1.2

0.8

0.6

0.4

0.2

10 20 30 40 50 60 70 80 90 100 110 120 130140

LEAD TEMPERATURE( C)

FIG.1 Forward Current Derating Curve

100

0.1

0.2

0.4

0.6

0.8

1.2

1.4

1.6

REVERSE VOLTAGE(V)

FORWARD VOLTAGE(V)

FIG.3 Typcial Junction Capacitance

FIG.2 Typical Forward Characteristics

100

NUMBER OF CYCLES AT 60Hz

FIG.4 Peak Forward Surge Current

WEITRON

http://www.weitron.com.tw

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