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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

SMT Gate Drive Transformer

for TI UCD3138 Digital Power Controllers

RoHS compliant
  • Selected by Texas Instruments for their UCD3138 evaluation boards
  • Designed to meet UL/CSA/IEC 60950 Reinforced Insulation; 3 mm creepage/clearance

Buy Now:
Count Unit price
1 $3.20
250 $2.73
500 $2.38
1000 $2.07
2500 $1.84
5000 $1.75

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

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


Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
at 0A (µH) 2
(Tolerance: ±25%)
DCR max (Ω) 3 Leakage
max (µH) 4
Turns Ratio Capacitance
max (pF)
SRF typ (MHz) 5 Volt-time
product (V-µs) 6
Voltage (Vrms) 7
Pri [A] Pri [B] Sec Pri [A] Pri [B] Pri [A] : Pri [B] : Sec (1–10) (1–5)
GA3550-BL_ 460 0.410 0.475 0.440 1.15 1.25 1 : 1 : 1 34 10.5 5.9 165 3000
  1. When ordering, please specify packaging code: e.g. GA3550-BLD
  2. Inductance is for each winding, measured at 200 kHz, 0.4 Vrms, 0 Adc.
  3. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance is measured at 200 kHz, 0.4 Vrms with secondary pins shorted.
  5. SRF is per winding, measured on an Agilent/HP 4192 or equivalent.
  6. Volt-time product is per winding.
  7. 3000 Vrms interwinding isolation
    500 Vrms windings to core isolation.


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


  • D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 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 +85°C
Storage temperature range:
Component: –40°C to +125°C
Packaging: –40°C to +80°C
Maximum part temperature:
+125°C (ambient + temp rise)
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 part_or_c.gif
200 330 100 13 50,4 44,4 44 24 4 2 10,56 0,4

General specification

Core Material:
6.3 g
200/13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 24 mm pocket spacing, 10.56 mm pocket depth


Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.