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RA6992-BL SMT Planar Transformer
for Texas Instruments UCC2897

  • Developed for TI UCC2897 Active Clamp Forward (PMP9656 Reference Design)
  • Designed for 48 – 60 Vdc input; 12 V, 21 A output
  • Provides 0.009 inch (0.229 mm) clearance above the seating plane
  • 1500 Vrms, one minute isolation (hipot) from primary to secondary
  • RoHS-compliant  260°C compatible. Matte tin over nickel over brass terminations

SPECIFICATIONS


Part number
Click to get parts
Turns Primary
Inductance1
±20% (µH)
Leakage
inductance2
max (µH)
DCR max (mOhms)3 Volt-time
product (typ)4
(Vµsec)
Output5
pri   sec  aux  pri sec aux
RA6992-BL 8 4 4 50 0.25 6.9 4.2 82 206 12 V, 21 A
1 Inductance is for the primary, measured on Agilent/HP 4284A at 200 kHz, 0.5 Vrms, 0 Adc with windings connected in parallel.
2 Leakage Inductance is for the primary, with windings connected in parallel, measured at 200 kHz, 0.5 Vrms, 0 Adc with secondary pins shorted.
3 DCR for primary is measured with the windings connected in parallel. DCR for secondary is measured between pins 7 and 11. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Volt-time product is based on primary windings connected in parallel
5 Output of the aux winding is 12 V.
6 Ambient temperature range: −40°C to +85°C
7 Storage temperature range: Component: −40°C to +125°C
Tray packaging: −40°C to +80°C
8 Maximum part temperature: 125°C (ambient + temp rise)
9 Resistance to soldering heat: Three reflows at >217°C for 40 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
10 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.

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Updated: October 30, 2017