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D1766-AL PoE Transformer

for Linear Technology LTC4267

RoHS compliant
  • Designed for use with Linear Technology LTC4267 PoE PD interface
  • Ideal for use in isolated converters and isolated power supplies
Buy Now:
Count Unit price
1 $2.69
175 $2.24
700 $1.87
1400 $1.56
2800 $1.36
5000 $1.18

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

. in stock, ready to ship today.
Request a Sample:

Typical Application

Works with ADIPowerbyLinear LTC4267

Input Voltage Output 1 Power Fsw
Sec1 Sec2 Sec3
36 V 72 V 1.8 V , 2.5 A 2.5 V , 1.5 A 3.3 V , 0.5 A 10 W 200 kHz

Specifications

Electrical specifications at 25°C.

Part number 2 Inductance
at 0A (µH) 3
(Tolerance: ±10%)
Inductance
min at   1.5 A (µH)
DCR max (Ω) Leakage
Inductance
max (µH) 4
Turns Ratio Isolation
Voltage (Vrms) 5
Pri Sec1 Sec2 Sec3 Pri : Sec1 : Sec2 : Sec3
D1766-AL_ 221 200 0.420 0.013 0.015 0.030 5.1 1 : 0.104 : 0.042 : 0.042 1500
Notes
  1. All outputs are referenced to ground.
  2. When ordering, please specify packaging code: e.g. D1766-ALD
  3. Inductance is for the primary, measured at 200 kHz, 1.1 Vrms, 0 Adc.
  4. Leakage inductance is for the primary and is measured with secondary windings shorted.
  5. 1500 Vrms primary to secondary isolation.

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

Packaging:

  • D = 13" machine-ready reel
    EIA 481 embossed plastic tape (175 parts per full reel).
  • B = Less than full reel
    In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +125°C
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):
38 per billion hours

Schematics

d1766s.gif

The three secondary windings are to be connected in series on the board by connecting pins 9, 8 and 7 together and pins11 and 10 together. Outputs at pins 12, 11,10 and 8,7 are referenced to ground (pins 5,6).

Physical characteristics

d1766dimensions.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 d1766orientation.gif
175 330 100 13 50,4 44,4 44 32 4 2 11,9 0,4

General specification

Core Material:
Ferrite
Weight:
12.7 g
Packaging:
175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 32 mm pocket spacing, 11.9 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 with pure water or alcohol only. More Info.

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