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Teccor, Brand thyristors, Ev series 0.8 amp sensitive scrs – Littelfuse SxX8xSx Series User Manual

Page 5

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203

Revised: 09/23/13

©2013 Littelfuse, Inc

Specifications are subject to change without notice.

Teccor

®

brand Thyristors

EV Series 0.8 Amp Sensitive SCRs

SxX8xSx Series

Physical Specifications

Terminal Finish

100% Matte Tin-plated.

Body Material

UL recognized epoxy meeting flammability
classification 94V-0.

Lead Material

Copper Alloy

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

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.

Dimensions – TO-92

Dimension

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

A

G

H

I

F

E

J

D

F

C

B

T MEASURING POINT

C

SEATING
PLANE

GATE

ANODE

CATHODE