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PEMD3_PIMD3_PUMD3

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Product data sheet

Rev. 11 — 25 September 2013

4 of 18

Nexperia

PEMD3; PIMD3; PUMD3

NPN/PNP resistor-equipped transistors

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

[1]

PEMD3 (SOT666)

-

-

625

K/W

PIMD3 (SOT457)

-

-

500

K/W

PUMD3 (SOT363)

-

-

625

K/W

Per device

Rth(j-a)

thermal resistance from

junction to ambient

in free air

[1]

PEMD3 (SOT666)

-

-

417

K/W

PIMD3 (SOT457)

-

-

313

K/W

PUMD3 (SOT363)

-

-

417

K/W