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StandexMeder Electronics GmbH
10 W – 50 W Planar Transformers | Serie 025

10 W – 50 W Planar Transformers | Serie 025

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10 W – 50 W Planar Transformers | Serie 025

Product catalog summary

Electrical Specifications

Topology: Forward with Active Reset
Input Voltage: 15-42VDC
Output Voltage/Current After Rectification: 15VDC/2ADC
Switching Frequency: 300kHz
Efficiency: 98.2% at 28VDC input and 30W output
Operating Ambient Range: -20°C to +85°C

Isolation and Resistance

Minimum Isolation Voltage: Primary to Secondary and Core: 200VDC; Secondary to Core: 200VDC
Primary Inductance (Np, Min.): 43µH
Primary Resistance (Rdc, Np, Max.): 9mOhm
Secondary Resistance (Rdc, Ns, Max.): 65mOhm
Leakage Inductance: 0.2µH (typical)

Design Features

Patented Header and Surface Mount Terminations: Ensure repeatable co-planarity for manufacturing
Mounting Options: Through-hole or surface mount available
Weight Range: Approximately 12-50 grams

Design Example

Model: PQC2158 (U.S. Patent 7,129,809)
Size: 025
Power Range: 10W-50W

Catalog excerpts

10 W – 50 W Planar Transformers | Serie 025-1

SOLUTIONS | Planar Transformers & Inductors SIZE 025 10W-50W DESIGN EXAMPLE TRANSFORMER DESIGN | EXAMPLE - PQC2158 (U.S. PAT. 7,129,809) to z o Topology Forward w/Active Reset Output Voltage/Current After Rectification 15VDC/2ADC Turns Ratio - Np/Ns 6T/12T Duty Cycle At Low Input Voltage Max. 53.0% Efficiency At Vin.=28Vdc/30W Output Calc. 98.2% (0.53W losses) Operating Ambient Range (Full Load) -20°C to +85°C *When bonded to substrate and soldered using all available terminals. Minimum Isolation Voltage Primary To Secondary And Core 200VDC Leakage Inductance 1-2/3-4 Shorted, Typ. 0.2pH Weight Range (Approximate) 12-50grams NOTES: 1) PATENTED HEADER AND SURFACE MOUNT TERMINATIONS PROVIDE REPEATABLE COPLANARITY FOR MANUFACTURING 2) THROUGH-HOLE OR SURFACE MOUNT AVAILABLE

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10 W – 50 W Planar Transformers | Serie 025

10 W – 50 W Planar Transformers | Serie 025

Catalog excerpts

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