205

Revised: June 21, 2011 04:14 PM

©2011 Littelfuse, Inc

Specifications are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

EV Series 1.5 Amp Sensitive SCRs

Sx02xS Series

Physical Specifications

Environmental Specifications

Dimensions — TO-92 (E Package)

A

G

H

I

F

E

J

D

F

C

B

T MEASURING POINT

C

SEATING

PLANE

GATE

ANODE

CATHODE

Dimensions

Inches

Millimeters

Min

Max

Min

Max

A

0.175

0.205

4.450

5.200

B

0.170

0.210

4.320

5.330

C

0.500

12.70

D

0.135

3.430

E

0.125

0.165

3.180

4.190

F

0.080

0.105

2.040

2.660

G

0.016

0.021

0.407

0.533

H

0.045

0.055

1.150

1.390

I

0.095

0.105

2.420

2.660

J

0.015

0.020

0.380

0.500

Test

Specifications and Conditions

AC Blocking

MIL-STD-750, M-1040, Cond A Applied

Peak AC voltage @ 125°C for 1008 hours

Temperature Cycling

MIL-STD-750, M-1051,

100 cycles; -40°C to +150°C; 15-min

dwell-time

Temperature/

Humidity

EIA / JEDEC, JESD22-A101

1008 hours; 320V - DC: 85°C; 85%

rel humidity

High Temp Storage

MIL-STD-750, M-1031,

1008 hours; 150°C

Low-Temp Storage

1008 hours; -40°C

Thermal Shock

MIL-STD-750, M-1056

10 cycles; 0°C to 100°C; 5-min dwell-

time at each temperature; 10 sec (max)

transfer time between temperature

Autoclave

EIA / JEDEC, JESD22-A102

168 hours (121°C at 2 ATMs) and

100% R/H

Resistance to

Solder Heat

MIL-STD-750 Method 2031

Solderability

ANSI/J-STD-002, category 3, Test A

Lead Bend

MIL-STD-750, M-2036 Cond E

Terminal Finish

100% Matte Tin-plated.

Body Material

UL recognized epoxy meeting flammability

classification 94V-0.

Lead Material

Copper Alloy

Design Considerations

Careful selection of the correct device for the application’s

operating parameters and environment will go a long way

toward extending the operating life of the Thyristor. Good

design practice should limit the maximum continuous

current through the main terminals to 75% of the device

rating. Other ways to ensure long life for a power discrete

semiconductor are proper heat sinking and selection of

voltage ratings for worst case conditions. Overheating,

overvoltage (including dv/dt), and surge currents are

the main killers of semiconductors. Correct mounting,

soldering, and forming of the leads also help protect

against component damage.