NXP Semiconductors
PMEG4020EPAS
40 V, 2 A low VF MEGA Schottky barrier rectifier
PMEG4020EPAS All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved
Product data sheet 19 January 2015 3 / 15
8. Limiting values
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
R
reverse voltage T
j
= 25 °C - 40 V
I
F
forward current T
sp
≤ 135 °C; δ = 1 - 2.8 A
δ = 0.5; f = 20 kHz; T
amb
≤ 65 °C;
square wave
[1] - 2 AI
F(AV)
average forward current
δ = 0.5; f = 20 kHz; T
sp
≤ 140 °C;
square wave
- 2 A
I
FRM
repetitive peak forward current t
p
≤ 1 ms; δ ≤ 0.25 [2] - 7 A
I
FSM
non-repetitive peak forward
current
t
p
= 8 ms; T
j(init)
= 25 °C; square wave [2] - 18 A
[3] - 520 mW
[4] - 1050 mW
P
tot
total power dissipation T
amb
≤ 25 °C
[1] - 1900 mW
T
j
junction temperature - 150 °C
T
amb
ambient temperature -55 150 °C
T
stg
storage temperature -65 150 °C
[1] Device mounted on a ceramic Printed-Circuit Board (PCB), Al
2
O
3
, standard footprint.
[2] Both anode pins connected.
[3] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
[4]
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for cathode 1 cm
2
.
9. Thermal characteristics
Table 6. Thermal characteristics
Symbol Parameter Conditions Min Typ Max Unit
[1][2] - - 240 K/W
[1][3] - - 120 K/W
R
th(j-a)
thermal resistance
from junction to
ambient
in free air
[1][4] - - 65 K/W
R
th(j-sp)
thermal resistance
from junction to solder
point
[5] - - 10 K/W
[1] For Schottky barrier diodes thermal runaway has to be considered, as in some applications the reverse
power losses P
R
are a significant part of the total power losses.
[2] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
[3]
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for cathode 1 cm
2
.
[4] Device mounted on a ceramic PCB, Al
2
O
3
, standard footprint.
[5] Soldering point of cathode tab.
