Revised: 01/16/18

Specifications are subject to change without notice.

©2018 Littelfuse, Inc

Thyristors

20 / 25 Amp Standard SCRs

Sxx20x & Sxx25x Series

SJxx25xx Series

Description

This SJxx25xx high temperature SCR series is ideal for

uni-directional switch applications such as phase control

in heating, motor speed controls, converters/rectifiers and

inrush current controllers. These SCRs have a low gate

current trigger level of 6mA,10mA or 35mA maximum at

approximately 1.5V

Features & Benefits

• Halogen free and RoHS

compliant

• 150°C maximum junction

temperature

• Surge capability up to

350 A at 60 Hz half cycle

Schematic Symbol

Main Features

Symbol

Value

Unit

I

T(RMS)

25

A

V

400 or 600

V

I

GT

6 to 35

mA

Absolute Maximum Ratings

Symbol

Parameter

Test Conditions

Value

Unit

V

Peak non-repetitive blocking voltage

Pw=100 μs

V

V

I

T(RMS)

RMS on-state current

SJxx25Lx

T

25

A

SJxx25Rx

SJxx25Nx

T

I

T(AV)

Average on-state current

SJxx25Lx

T

16

A

SJxx25Rx

SJxx25Nx

T

I

TSM

Peak non-repetitive surge current

single half cycle; f = 50Hz;

T

300

A

single half cycle; f = 60Hz;

T

350

t

510

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 150

°C

Note: xx=voltage/10, x=sensitivity

Applications

Typical applications include AC Generator (ACG) rectifiers,

battery voltage regulators, generic converters, inrush

current controller in various AC to DC applications and soft

starter for low power AC motor. Additional applications

include controls for power tools, home/brown good and

white goods appliances.

Internally constructed isolated packages are offered for

ease of heat sinking with high isolation voltage.

AK

G

RoHS

25 Amps High Junction Temperature SCRs

SJxx25xx Series