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A9967-AL Surface Mount

Power Transformer

RoHS compliant
  • Can be used with Linear Technology LT1725 Flyback Controller.
  • Suitable for use in PoE applications.
  • Ideal for use in telecommunications isolated converters and isolated power supplies
  • Six 1:1 windings

Buy Now:
Count Unit price
1 $3.42
175 $3.10
700 $2.62
1400 $2.18
2800 $1.97
5000 $1.78

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

. in stock, ready to ship today.
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Typical Application

Works with ADIPowerbyLinear LT1725

Input Voltage Output 1 Power Fsw
36 V 72 V 15 V , 2 A 30 W 100 kHz


Electrical specifications at 25°C.

Part number 2
(Hover for schematics)
at 0A (µH) 3
(Tolerance: ±10%)
min at   2.3 A (µH)
DCR max (Ω) Leakage
max (µH) 4
Turns Ratio Isolation
Voltage (Vrms) 5
Pri Sec Bias Pri : Sec : Bias
A9967-AL_ 10.0 9.0 0.135 0.225 0.045 0.200 1 : 0.33 : 0.33 500
  1. Output is with both windings of the secondary connected in parallel.
  2. When ordering, please specify packaging code: e.g. A9967-ALD
  3. Inductance is per winding of the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc. Inductance of the primary, with three windings connected in series is 90 µH.
  4. Leakage inductance is for one winding and is measured with all other windings shorted.
  5. 500 Vrms, one minute isolation between windings.


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


  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel). 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.
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):



Physical characteristics



Tape and Reel specification


Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T a9967orientation.gif
175 330 100 13 50,4 44,4 44 32 4 2 11,9 0,4  

General specification

Core Material:
11.9 g
175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 28 mm pocket spacing, 12.0 mm pocket depth


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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