20 W – 150 W Planar Transformers | Serie 035

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20 W – 150 W Planar Transformers | Serie 035

Product catalog summary

Electrical Specifications

Topology: Forward with active reset
Minimum Efficiency: 97.50% at nominal input
Input Voltage: 36-72VDC
Temperature Rise: Hot Spot Ambient +45°C
Output Voltage/Current After Rectification: 50W
Rated Current: From Ns1 Output 15A, From Naux Output 0.5A
Switching Frequency: 300kHz
Turns Ratio: Np/Ns/Naux 12T/2T/8T
Duty Cycle: Max. 61% at low input voltage
Operating Ambient Range: -40°C to +85°C
Weight Range: Approximately 12-50 grams
Minimum Inductance: 248µH

Isolation Voltage

Primary and Aux to Secondary: 1500VDC
Primary and Aux to Core: 1500VDC
Primary to Aux: 200VDC
Secondary to Core: 200VDC

Design Features

Patented header and surface mount terminations provide repeatable co-planarity for manufacturing.
Available in through-hole or surface mount configurations.

Transformer Design Example

Model: PQC1686
Size: 035
Power Range: 20W-150W

Catalog excerpts

20 W – 150 W Planar Transformers | Serie 035-1

SOLUTIONS | Planar Transformers & Inductors TRANSFORMER DESIGN | EXAMPLE - PQC1686 SIZE 03520W-150W ELECTRICAL SPECIFICATIONS Topology Forward w/active rest Output Voltage/Current After Rectification 50W Rated Current From Ns1 Output 15A Rated Current From Naux Output 0.5A Turns Ratio - Np/Ns/Naux 12T/2T/8T Duty Cycle At Low Input Voltage Max. 61% Operating Ambient Range (Full Load) -40° C to +85° C Minimum Efficiency At Nominal Input Temp. Rise Hot Spot Ambient Minimum Isolation Voltage Primary And Aux To Secondary Primary And Aux To Core Primary To Aux Secondary To Core Leakage Inductance Typ. Weight Range (Approximate) NOTES: 1) PATENTED HEADER AND SURFACE MOUNT TERMINATIONS PROVIDE REPEATABLE COPLANARITY FOR MANUFACTURING 2) THROUGH-HOLE OR SURFACE MOUNT AVAILABLE

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