BT138B datasheet(3/6 Pages) PHILIPS

3 / 6 page

Philips Semiconductors

Product specification

Triacs

BT138B series

Fig.1. Maximum on-state dissipation, P

tot, versus rms

on-state current, I

T(RMS), where α = conduction angle.

Fig.2. Maximum permissible non-repetitive peak

on-state current I

TSM, versus pulse width tp, for

sinusoidal currents, t

p ≤ 20ms.

Fig.3. Maximum permissible non-repetitive peak

on-state current I

TSM, versus number of cycles, for

sinusoidal currents, f = 50 Hz.

Fig.4. Maximum permissible rms current I

T(RMS) ,

versus mounting base temperature T

mb.

Fig.5. Maximum permissible repetitive rms on-state

current I

T(RMS), versus surge duration, for sinusoidal

currents, f = 50 Hz; T

mb ≤ 99˚C.

Fig.6. Normalised gate trigger voltage

GT(Tj)/ VGT(25˚C), versus junction temperature Tj.

= 180

120

BT138

IT(RMS) / A

Ptot / W

Tmb(max) / C

125

117.5

110

102.5

-50

100

150

BT138

99 C

Tmb / C

IT(RMS) / A

10us

100us

1ms

10ms

100ms

100

1000

BT138

T / s

ITSM / A

ITSM

time

Tj initial = 25 C max

dI /dt limit

T2- G+ quadrant

0.01

0.1

BT138

surge duration / s

IT(RMS) / A

100

1000

100

BT138

Number of cycles at 50Hz

ITSM / A

ITSM

time

Tj initial = 25 C max

-50

100

150

0.4

0.6

0.8

1.2

1.4

1.6

BT136

Tj / C

VGT(Tj)

VGT(25 C)

October 1997

Rev 1.200

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