Vishay / Dale SGTPL-28 Space-Grade Planar Transformers
Vishay / Dale SGTPL-28 Space-Grade Planar Transformers feature multiple output secondaries and are optimized for 150W forward converter topologies using 28V input and 200kHz operation. Multiple secondaries are able to power up to two 12V channels or up to four 5V channels with a center tap. These ruggedized transformers are constructed with overmolded windings for environmental protection and tin-lead (Sn63Pb37) coated terminations. The SGTPL-28 series offers an 18V to 36V input voltage range and higher power density levels than traditional planar designs. Vishay / Dale SGTPL-28 Space-Grade Planar Transformers are designed to operate in a -55°C to +130°C continuous temperature range.
Features
- 18V to 36V input voltage range
- Multiple secondaries can power up to two 12V channels or up to four 5V channels with center tap
- Optimized for 150W forward converter topologies using 28V input and 200kHz operation
- Overmolded windings for environmental protection in ruggedized applications
- Higher power density levels vs. traditional planar designs
- MIL-PRF-27 grade 5, product level T, temperature class S
- MIL-STD-981 family 03 power transformer, class S compliant
- ASTM-E595 outgassing compliant
- Tin-lead (Sn63Pb37) coated terminations (does not contain tin composition percentages greater than 97%)
- -55°C to +130°C continuous operating temperature range
Applications
- High-reliability, space-grade switch-mode power supplies
- 28V primary input voltage forward converters
- Active clamp or dual switch forward converters up to 150W
Typical Board Pin Layout
Related Transformers
Vishay SGTPL-2516 Space-Grade Planar Transformer
MIL-STD-981 class S compliant and offers a 150W power rating and 80kHz to 300kHz frequency range.
Published: 2025-08-31
| Updated: 2025-09-08