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©2008 Littelfuse, Inc.

Revised: July 9, 2008

Specifications are subject to change without notice.

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

Specifications are subject to change without notice.

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

LX8 Series

EV Series 0.8 Amp Sensitive Triacs

Physical Specifications

Dimensions — TO-92 (E Package)

Dimensions

Inches

Millimeters

Min

Typ

Max

Min

Typ

Max

A

0.175

—

0.205

4.450

—

5.200

B

0.170

—

0.210

4.320

—

5.330

C

0.500

—

—

12.700

—

—

D

0.135

0.165

—

3.430

4.190

—

E

0.125

—

0.165

3.180

—

4.190

F

0.080

0.095

0.105

2.040

2.400

2.660

G

0.016

—

0.021

0.407

—

0.533

H

0.045

0.050

0.055

1.150

1.270

1.390

I

0.095

0.100

0.105

2.420

2.540

2.660

J

0.015

—

0.020

0.380

—

0.500

Reliability/Environmental Tests

Test

Specifications and Conditions

AC Blocking

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

Peak AC voltage @ 110°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.