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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

Flyback Transformers

for Linear Technology LT3751

RoHS compliant
  • Designed for use with Linear Technology LT3751 Capacitor Charger Controller
  • For charging capacitors to 500 V
  • Coilcraft DA2033-AL and DA2034-AL are specified for 5 A and 10 A applications
COTS Plus tin-silver-copper and tin-lead terminations available
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Count Unit price
1 $11.98
240 $9.66
480 $6.50
1200 $5.45

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 LT3751

Part number Input Voltage Output Fsw
GA3460-BL 12 V 24 V 500 V 50 kHz
GA3459-BL 5 V 24 V 500 V 50 kHz


Electrical specifications at 25°C.

Part number
(Hover for schematics)
at 0A (µH) 1
(Tolerance: ±10%)
min (µH)
DCR max (mΩ) 2 Leakage
max (µH) 3
Turns Ratio 4 Isolation
Voltage (Vrms) 5
Pri Sec Pri : Sec
GA3460-BL 2.5 2.3 @ 50 A 5.6 400 0.06 1 : 10 1500
GA3459-BL 5.0 4.3 @ 20 A 7.7 515 0.10 1 : 10 1500
  1. Inductance is measured at 50 kHz, 0.1 Vrms.
  2. DCR for the primary is with the windings connected in parallel.
  3. Leakage inductance is for the primary with windings connected in parallel and with the secondary winding shorted.
  4. Turns ratios are with the primary windings connected in parallel.
  5. 1500 Vrms, one minute interwinding isolation


  • RoHS tin-silver (96.5/3.5) over tin over nickel over phos bronze. Other terminations available at additional cost.
RoHS compliant
Ambient temperature range:
–40°C to +125°C
Storage temperature range:
Component: –40°C to +125°C
Tray packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):



Primary windings to be connected in parallel
on PC board.
Connect pin 6 to ground.

Note: The primary windings of these transformers
DO NOT have the same pinouts

Physical characteristics



General specification

Core Material:
24.2 – 27.5 g
24 per tray


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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