PEMD48 查看數據表（PDF） - NXP Semiconductors.

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PEMD48

NPN/PNP resistor-equipped transistors; R1 = 47 kΩ, R2 = 47 kΩ and R1 = 2.2 kΩ, R2 = 47 kΩ

NXP Semiconductors. 

NXP Semiconductors

PEMD48; PUMD48

NPN/PNP resistor-equipped transistors

103

duty cycle = 1

Zth(j-a) 0.75

(K/W)

0.5

0.33

102

0.2

0.1

0.05

0.02

10

0.01

0

006aac750

1

10-5

10-4

10-3

10-2

10-1

1

10

102

103

tp (s)

Fig 3.

FR4 PCB, standard footprint

Transient thermal impedance from junction to ambient as a function of pulse duration for

PUMD48 (SOT363); typical values

Table 7. Thermal characteristics

Symbol Parameter

Per transistor

Rth(j-a)

thermal resistance from

junction to ambient

PEMD48 (SOT666)

PUMD48 (SOT363)

Per device

Rth(j-a)

thermal resistance from

junction to ambient

PEMD48 (SOT666)

PUMD48 (SOT363)

Conditions

Tamb  25 C

Tamb  25 C

Min Typ Max Unit

[1][2] -

-

625 K/W

[1] -

-

625 K/W

[1][2] -

-

417 K/W

[1] -

-

417 K/W

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

[2] Reflow soldering is the only recommended soldering method.

PEMD48_PUMD48

Product data sheet

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

Rev. 6 — 24 January 2012

© NXP B.V. 2012. All rights reserved.

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