Nexperia

PRMH13

50 V, 100 mA NPN/NPN Resistor-Equipped double Transistors (RET)

PRMH13

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Product data sheet

8 August 2017

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9. Thermal characteristics

Table 6. Thermal characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Per transistor

Rth(j-a)

thermal resistance

from junction to

ambient

in free air

[1]

-

-

385

K/W

Per device

Rth(j-a)

thermal resistance

from junction to

ambient

in free air

[1]

-

-

261

K/W

[1] Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard footprint.

aaa-024488

10-5

10

10-2

10-4

102

10-1

tp (s)

10-3

103

1

102

10

103

Zth(j-a)

(K/W)

1

duty cycle = 1

0.01

0

0.02

0.05

0.1

0.2

0.33

0.5

0.75

FR4 PCB, standard footprint

Fig. 2. Per transistor: Transient thermal impedance from junction to ambient as a function of pulse duration;

typical values