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UA7902-AL

UA7902-ALD

RoHS compliant AEC-Q flag

For more information and specification about the part.

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Buy Now:
Count Unit price
1 $4.13
350 $3.48
700 $3.02
1400 $2.38
2100 $2.04
4000 $1.85

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Typical Application

Works with Skyworks Si88xxx

Input Voltage Output Power Fsw
7 V 24 V 5 V , 0.4 A 2 W 250 kHz

Specifications

Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
Inductance
at 0A (µH) 2
(Tolerance: ±5%)
Isat (A) 3 DCR max (Ω) 4 Leakage
Inductance
max (µH) 5
Turns Ratio Isolation
Voltage (Vrms) 6
Pri Sec Pri : Sec
UA7902-AL_ 25.0 1.3 0.075 0.106 0.971 1 : 0.33 5000
Notes
  1. When ordering, please specify packaging code: e.g.UA7902-ALD
  2. Inductance is for the primary, measured on an Agilent/HP 4284 at 250 kHz, 0.1 Vrms, 0 Adc.
  3. DC current that causes an inductance drop of 30% (typ) from its value without current.
  4. DCR for secondary is for the windings connected in parallel.
  5. Leakage inductance measured between pins 1 and 3 at 250 kHz, 0.1Vrms, 0 Adc with all secondary pins shorted.
  6. Isolation (hipot) measured between windings for one minute.

Termination:

  • RoHS-compliant. 260°C compatible. RoHS tin-silver-copper (95.5/3.8/0.7) over tin over nickel over phos bronze.

Packaging:

  • D = 13″ machine ready reel. EIA-481 embossed plastic tape. Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +125°C
Storage temperature range:
Component: –40°C to +160°C
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+160°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Schematics

ua7902s.gif
Secondary windings to be connected
in parallel on PC board.

Physical characteristics

ua7902d.gif

dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_f.gif
700 330 100 13 38,4 32,4 32 16 4 2 5,72 0,4

General specification

Core Material:
Ferrite
Weight:
1.1 g
Packaging:
700 per 13″ reel Plastic tape: 32 mm wide, 0.40 mm thick, 16 mm pocket spacing, 5.72 mm pocket depth

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.