Nexperia

PMP4501QAS

45 V, 100 mA NPN/NPN matched double transistors

PMP4501QAS

All information provided in this document is subject to legal disclaimers.

© Nexperia B.V. 2018. All rights reserved

Product data sheet

9 February 2018

4 / 11

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]

-

-

544

K/W

Per device

Rth(j-a)

thermal resistance

from junction to

ambient

in free air

[1]

-

-

358

K/W

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

aaa-007378

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

0.75

0.5

0.33

0.2

0.1

0.02

0.01

0

0.05

FR4 PCB, standard footprint

Fig. 3. Per transistor: Transient thermal impedance from junction to ambient as a function of pulse duration;

typical values