PEMH9_PIMH9_PUMH9

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Product data sheet

Rev. 5 — 12 November 2013

4 of 17

NXP Semiconductors

PEMH9; PIMH9; PUMH9

NPN/NPN resistor-equipped transistors; R1 = 10 k

, R2 = 47 k

6.

Thermal characteristics

[1]

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

(1) SOT457; FR4 PCB, standard footprint

(2) SOT363 and SOT666; FR4 PCB, standard footprint

Fig 1.

Per device: Power derating curves

Tamb (°C)

-75

175

125

25

75

-25

006aac766

200

300

100

400

500

Ptot

(mW)

0

(1)

(2)

Table 7.

Thermal characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Per transistor

Rth(j-a)

thermal resistance from

junction to ambient

in free air

PEMH9 (SOT666)

[1] -

-

625

K/W

PIMH9 (SOT457)

[1] -

-

500

K/W

PUMH9 (SOT363)

[1] -

-

625

K/W

Per device

Rth(j-a)

thermal resistance from

junction to ambient

in free air

PEMH9 (SOT666)

[1] -

-

417

K/W

PIMH9 (SOT457)

[1] -

-

313

K/W

PUMH9 (SOT363)

[1] -

-

417

K/W