GA3382 Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Power Inductor

Document 690-1
Power Inductor – GA3382-BL ForNSCLM25037
PWM Controller
• Designed for National Semiconductor LM25037 Dual Mode
PWM Controller. Shown as L3 on Application Note AN-1861.
• 500 Vrms primary to bias and primary to core isolation
• Bias winding provides 10 Vdc to the circuit
Core material Ferrite
Terminations RoHS compliant tin-silver over copper. Other
terminations available at additional cost.
Weight 9.5 g
Ambient temperature –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –40°C to +125°C.
Packaging: –55°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Mean Time Between Failures (MTBF) 26,315,789 hours
Packaging 175/13″ reel Plastic tape: 44 mm wide, 0.4 mm thick,
32 mm pocket spacing, 11.5 mm pocket depth
PCB washing Only pure water or alcohol recommended
Part
number¹
GA3382-BL_
Inductance²
±10% (µH)
4.0
DCR max (Ohm)³
pri
bias
0.0095 0.36
SRF typ
(MHz)
30
Isat (A)⁴
10% drop 20% drop 30% drop
16.0
17.0
18.0
Irms (A)⁵
20°C rise 40°C rise
6.5
8.5
1. When ordering, please specify termination and packaging codes:
GA3382-BLD
Termination: L = RoHS compliant tin-silver over copper.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape.
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.
2. Inductance measured at 250 kHz, 0.4 Vrms.
3. DCR for the primary is with the windings connected on parallel.
4. DC current at which inductance drops the specified amount from its value without current.
5. Current that causes the specified temperature rise from 25°C ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
1
2
3
4
7
8
9
10
5
Bias
6
Primary windings to be connected
in parallel on the PC board
© Coilcraft, Inc. 2008
Specifications subject to change without notice.
Please check our website for latest information.
Document 690-1 Revised 09/05/08