July 2007

Rev 10

1/12

12

BTA24, BTB24, BTA25

BTA26, BTB26, T25

25 A standard and Snubberless™ triacs

Features

commutation (3 quadrant) capability

Applications

Applications include the ON/OFF function in

applications such as static relays, heating

regulation, induction motor starting circuits, etc.,

or for phase control operation in light dimmers,

motor speed controllers, and silmilar.

The snubberless versions (BTA/BTB...W and T25

series) are especially recommended for use on

inductive loads, due to their high commutation

performances. The BTA series provides an

Description

Available either in through-hole or surface-mount

packages, the BTA24, BTB24, BTA25, BTA26,

BTB26 and T25 triac series is suitable for general

purpose mains power AC switching.

TM: Snubberless is a trademark of STMicroelectronics

(T25)

RD91

(BTA25)

TOP3 Insulated

(BTA26)

TO-220AB Insulated

(BTA24)

TO-220AB

(BTB24)

G

A2

A1

G

A2

A2

A1

A2

A1

G

G

A2

A1

G

A2

A1

A2

A2

G

A1

TOP3

(BTB26)

G

A2

A1

A2

Table 1.

Device summary

Symbol

Parameter

1.

Insulated packages

BTB24

BTA25(1)

BTA26(1)

BTB26

T25

Unit

RMS on-state

current

25

25

25

25

25

25

A

Repetitive peak

off-state voltage

2.

600

600 / 800

V

Triggering gate

current

35 / 50

35 / 50

50

35 / 50

-

35

mA

Triggering gate

current

-50

50

50

50

-

mA

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