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Close up of UA7868
3D Model Datasheet

UA7868-AE Coupled Inductor

for Intel’s 3D RealSense camera

RoHS compliant halogen free
  • Developed for use in Intel’s 3rd Gen 3D RealSense camera.
  • Coupled, low profile shielded power inductor – only 1,4 mm high, 3 mm square
  • 1 : 11 turns ratio
  • Excellent coupling coefficient: K > 0.98
  • Uses: flyback transformers in DC-DC converters; coupled inductors in buck regulators to provide multiple outputs; autotransformers
  • 300 V winding-to-winding isolation
  • RoHS-compliant. 260°C compatible. Silver-palladium-platinum-glass frit terminations

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Specifications

Electrical specifications at 25°C.

For Flyback Applications

Part number 1 Inductance (µH) 2
(Tolerance: ±20%) 		DCR (Ω) 3 Isolation
Voltage (V) 		Turns Ratio
L1 max L2 max
UA7868-AE_ 2.9 1.6 17.8 300 1 : 11

For SEPIC Applications

Part number 1 Inductance (µH) 2
(Tolerance: ±20%) 		DCR max (Ω) 3 SRF typ (MHz) 4 Coupling coefficient Volt-time
product (V-µs) 		Isat (mA) 5
L1 L2
UA7868-AE_ 2.9 1.6 17.8 6.3 >0.98 1.97 680
Notes
  1. When ordering, please specify packaging code: e.g. UA7868-AEC
  2. Inductance is for the primary (L1), measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
  3. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
  5. Isat: DC current applied to L1 at which the inductance drops 10% (typ) from its value without current.

Termination:

  • RoHS compliant silver-palladium-platinum-glass frit.

Packaging:

  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1000 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3500 parts per full reel).
  • 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 C.
Environmental
Environmental:
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +85°C with Irms current, +85°C to +125°C with derated current
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
See FIT/MTBF Calculations

Performance curves

L vs Current

L vs Current

L vs Frequency

L vs Frequency

Schematics

ua7868s.gif

Physical characteristics

ua7868d.gif

dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_aj.gif
1000 3500* 178/330 60/100 13 18,4 12,4 12 8 4 2 1,65 0,26
* Special order

General specification

Core Material:
Ferrite
Weight:
52 mg
Packaging:
1000/7″reel; 3500/13″ reel Plastic tape: 12 mm wide, 0.26 mm thick, 8 mm pocket spacing, 1.65 mm pocket depth
Winding to Winding Isolation:
300 Vrms

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.
Recommended Pick & Place Nozzle:
OD: 3 mm; ID: ≤1.5 mm
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

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