BTA41 datasheet(3/7 Pages) STMICROELECTRONICS

Part #	BTA41

Description	40A TRIACs

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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BTA40, BTA41 and BTB41 Series

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Table 6: Thermal resistance

Symbol

Parameter

Value

Unit

Rth(j-c)

Junction to case (AC)

RD91 (Insulated) / TOP3

0.9

°C/W

TOP3 Insulated

0.6

Rth(j-a)

Junction to ambient

TOP3 / TOP3 Insulated

50

°C/W

S = Copper surface under tab.

Figure 1: Maximum power dissipation versus

RMS on-state current (full cycle)

Figure 2: RMS on-state current versus case

temperature (full cycle)

Figure 3: Relative

variation

of

thermal

impedance versus pulse duration

Figure 4: On-state characteristics (maximum

values)

0

5

10

15

20

25

30

35

40

0

10

20

30

40

50

P(W)

I

(A)

T(RMS)

180°

α

0

25

50

75

100

125

0

5

10

15

20

25

30

35

40

45

I

(A)

T(RMS)

T (°C)

C

BTA41

BTA40 / BTB41

α = 180°

1.E-03

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

1.E-03

1.E-02

1.E-01

1.E+00

K=[Z /R

th

th]

t (s)

p

Z

BTA / BTB41

th(j-a)

Zth(j-c)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

1

10

100

400

I

(A)

TM

V

(V)

TM

T = 25°C

j

.

T max.

V = 0.85V

R = 10 m

j

to

d

Ω

T=

j

T max.

j

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