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YA9215-AL 50 W Resonant Transformer

Planar Transformer for Microchip EV84C64A

RoHS compliant
The YA9215 planar transformer is specifically designed for use on the EV84C64A model 50 W interleaved LLC converter development board from Microchip. The planar design is constructed with flat coil windings and copper plates to offer high power density and higher current handling in a lower profile package compared with traditional wire wound transformers.
  • Designed for 50 W interleaved LLC converter development board EV84C64A from Microchip
  • New planar transformer design, higher power density and lower profile vs. the wire wound type
  • Operates up to 1000 kHz, with 38 – 42 V DC input voltage

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Typical Application

Works with Microchip EV84C64A

Input Voltage Power Fsw
38 V 42 V 50 W 800 kHz

Specifications

Electrical specifications at 25°C.

Part number
(Hover for schematics)
Inductance
at 0A (µH) 1
(Tolerance: ±10%)
DCR max (mΩ) 2 Leakage
Inductance
max (µH) 3
Turns Ratio Volt-time
product (V-µs) 4
Isolation
Voltage (Vrms) 5
Pri Sec Pri : Sec
YA9215-ALD 3.2 7.35 0.65 0.105 1 : 0.25 75 500
Notes
  1. Inductance is for the primary, measured on Agilent/HP 4284A at 800 kHz, 0.8 Vrms, 0 Adc with primary windings connected in parallel.
  2. DCR for the primary is measured with the windings connected in parallel. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  3. Leakage Inductance is for the primary, measured at 800 kHz, 0.8 Vrms, 0 Adc with primary windings connected in parallel and all secondary pins shorted.
  4. Volt-time product is based on primary windings connected in parallel.
  5. 500 Vrms, one minute isolation hipot) from primary to secondary.

Termination:

  • RoHS-compliant  260°C compatible. Matte tin over nickel over brass.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +125°C
Storage temperature range:
Component: –40°C to +125°C
Tray packaging: –40°C to +80°C
Maximum part temperature:
+145°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Schematics

ya9215s.gif

Physical characteristics

ya9215d.gif

dims_inches_mm.gif

General specification

Core Material:
Ferrite
Weight:
11.44 g
Packaging:
36 per tray

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

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