®

1/6

SMAJ

TRANSIL™

REV. 8

K

K

K

K

K

K

K

K

A

A

A

A

A

A

A

A

Unidirectional

Bidirectional

SMA

(JEDEC DO-214AC)

February 2006

FEATURES

From 5V to 188V

DESCRIPTION

signed specifically for protecting sensitive equip-

ment against transient overvoltages. The SMA

package allows save spacing on high density

printed circuit boards.

Transil diodes provide high overvoltage protection

by clamping action. Their instantaneous response

to transient overvoltages makes them particularly

suited to protect voltage sensitive devices such as

MOS Technology and low voltage supplied IC’s.

Table 3: Thermal Resistances

Symbol

Parameter

Value

Unit

400

W

P

Power dissipation on infinite heatsink

3.3

W

Non repetitive surge peak forward

current for unidirectional types

40

A

Storage temperature range

Maximum junction temperature

-65 to 175

150

°C

Maximum lead temperature for soldering during 10 s.

260

°C

Note 1: for a surge greater than the maximum values, the diode will fail in short-circuit.

Symbol

Parameter

Value

Unit

Rth(j-l)

Junction to leads

30

°C/W

Rth(j-a) Junction to ambient on printed circuit on recommended pad layout

120

°C/W

Table 1: Order Codes

Part Number

Marking

SMAJxxxA-TR

See page 2

SMAJxxxCA-TR

See page 2