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power.pulseelectronics.com

P781. E (04/19)

http://www.power.pulseelectronics.com/contact

Isolation Power Transformers

EE5 Platform SMD

Push Pull Converter Transformer

Operational Insulation

1.5KVrms isolation (380Vrms continuous)

Compact and cost effective industrial design

Output: 1.0W max

Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C

Part

Number

Inductance

(1-3)

(µH ±35%)

Leakage Inductance

(1-3) with

(4-6) shorted

(

µH MAX)

Capacitance

(1, 2, 3) to (4, 5, 6)

(pF MAX)

DCR (1-3)

(

Ω MAX)

DCR (4-6)

(

Ω MAX)

(V-

µsec Max)

Turns Ratio

(1:3) (6:4)

Isolated Voltage

(Vrms)

PH9084.011NL

456

3.0

15

2.0

2.0

37

1CT : 1CT

1500

PH9084.034NL

256

3.0

15

1.6

2.0

28

3CT : 4CT

PH9084.043NL

456

3.0

15

2.0

2.0

37

4CT : 3CT

PH9084.021NL

456

3.0

15

2.0

1.2

37

2CT : 1CT

1. The ET Max is calculated to limit the core loss and temperature rise at 200KHz based on a

bipolar flux swing of 180mT Peak.

2. For Push-Pull topology, where the voltage is applied across half the primary winding

turns, the ET needs to be derated by 50% for the same flux swing.

3. The applied ET may need to be further derated for higher frequencies based on the

temperature rise which results from the core and copper losses

A. To calculate total copper loss (W), use the following formula:

B. To calculate total core loss (W), use the following formula:

Where ET is the applied Volt Second, ET Max is the rated Volt Second for 180mT flux

swing

C. To calculate temperature rise, use the following formula:

Temperature Rise (°C) = 302 * (Core Loss(W) + Copper Loss (W))

4. Optional Tape & Reel packing can be ordered by adding a “

T” suffix to the part number

(i.e. PH9084.011NL becomes PH9084.011NL

T). Pulse complies to industry standard tape

and reel specification EIA481.

5. The “NL” suffix indicates an RoHS-compliant part number.

PH9084.XXXNL

Mechanical

Schematic

Weight ...........................0.37grams

Tape & Reel ........................900/reel

Tray ......................................120/tray

Dimensions: mm

Unless otherwise specified,

all tolerances are ±0.25

2

1

3

5

6

4

SECONDARY

PRIMARY

Notes: