12 © Ericsson Microelectronics, August 2000
PKJ 4000 I Series
22-150 Watt DC/DC power modules
The PKJ 4000 I series represents a “third generation”
of high density DC/DC power modules providing
more than 90% efficiency. To achieve this high
efficiency they use proprietary drive and control
circuits with planar magnetics and low resistivity
multilayer PCB technology, and a patent pending
topology with active rectification.
The PKJ 4000 I series can be used without bulky
and height consuming heatsinks, resulting in a lower
total cost. This also provides narrow board spacing for
electronic, shelf based applications. The products are
in the industry standard package size and offer a
beneficial alternative to competing products on the
market. The PKJ 4000 I series also offers the
flexibility of using a heatsink when needed, enabling
reduced airflow, extended reliability or higher
• High efficiency 93% typ. at 12V
• MTBF > 3 million hours in
accordance with Bellcore TR-332
• Industry standard footprint
• Max case temperature +100°C
• 1,500 Vdc isolation voltage
• High power density, up to 55 W/in3.
ambient temperature operation in a wide range of
48 and 60 V dc (36-75 V dc) systems.
Similar to other Ericsson power modules, the
PKJ 4000 I series includes over and under-voltage
protection, over-temperature protection, soft-start
and is short circuit proof.
61.0 x 57.9 x 12.7 mm (2.4 x 2.28 x 0.5 inch)
VIVO/IO max PO max Article Code
36–75 Vdc 1.5 V/15 A 22.5 W PKJ 4218 PIOAT
36–75 Vdc 1.8 V/15 A 27 W PKJ 4218 PIT
36–75 Vdc 2.5 V/15 A 37.5 W PKJ 4319 PI
36–75 Vdc 3.3 V/15 A 50 W PKJ 4510 PI
36–75 Vdc 5 V/15 A 75 W PKJ 4711 PI
36–75 Vdc 12V/6.25 A 75 W PKJ 4713 PI
36–75 Vdc 1.5 V/20 A 30 W PKJ 4318 PIOAT
36–75 Vdc 1.8 V/20 A 36 W PKJ 4318 PIT
36–75 Vdc 2.5 V/20 A 50 W PKJ 4519 PI
36–75 Vdc 3.3 V/20 A 66 W PKJ 4610 PI
36–75 Vdc 5 V/20 A 100 W PKJ 4111 PI
36–75 Vdc 12 V/8.3 A 100 W PKJ 4113 PI
36–75 Vdc 1.5 V/30 A 45 W PKJ 4418 PIOAT
36–75 Vdc 1.8 V/30 A 54 W PKJ 4518 PIT
36–75 Vdc 2.5 V/30 A 75 W PKJ 4719 PI
36–75 Vdc 3.3 V/30 A 100 W PKJ 4910 PI
36–75 Vdc 5 V/30 A 150 W PkJ 4111A PI
36–75 Vdc 12 V/12.5 A 150 W PKJ 4113A PI
