© 2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 06/14/16

20 / 25 Amp Standard SCRs

Sxx20x & Sxx25x Series

Description

Excellent unidirectional switches for phase control

applications such as heating and motor speed controls.

Standard phase control SCRs are triggered with few

milliamperes of current at less than 1.5V potential.

Features & Benefits

• RoHS compliant

• Glass – passivated

junctions

• Voltage capability up

to 1000 V

• Surge capability up to

350 A

Schematic Symbol

Main Features

Symbol

Value

Unit

I

T(RMS)

20 & 25

A

V

400 to 1000

V

I

GT

30 to 35

mA

Absolute Maximum Ratings — 20A SCR

Symbol

Parameter

Test Conditions

Value

Unit

I

T(RMS)

RMS on-state current

T

20

A

I

T(AV)

Average on-state current

Sxx20x & Sxx20L

T

12.8

A

I

TSM

Peak non-repetitive surge current

single half cycle; f = 50Hz;

T

255

A

single half cycle; f = 60Hz;

T

300

t

374

di/dt

Critical rate of rise of on-state current

f = 60Hz ; T

125

A/μs

I

GM

Peak gate current

T

3

A

P

G(AV)

Average gate power dissipation

T

0.6

W

T

stg

Storage temperature range

-40 to 150

°C

T

J

Operating junction temperature range

-40 to 125

°C

Applications

Typical applications are AC solid-state switches, industrial

power tools, exercise equipment, white goods and

commercial appliances.

Internally constructed isolated packages are offered for

ease of heat sinking with highest isolation voltage.

AK

G

Agency Approval

Agency

Agency File Number

L Package: E71639

RoHS

Additional Information

Datasheet

Samples

Resources