Planar Transformer for
National Semiconductor LM5027
- Developed for use with the NSC LM5027 Voltage Mode Active Clamp Controller.
- Chosen by NSC for T1 on the LM5027 Evaluation Board, and is described in Application Note AN-1976.
- Auxiliary winding provides 10 V to the chipset.
- 1500 Vdc isolation, primary and auxiliary to secondaries
- RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations.
Photo 
Pricing 
Materials declaration 
PDF data sheet
SPECIFICATIONS
Dimensions
Schematic
Tape and reel specifications
3D model
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| HA4000-AL_ | 270 | 56 0.5 294 |
(pri) (sec) (aux) |
0.6 | 36 – 78 | 12 : 1 : 1 : 7 | 3.3 V, 30 A |
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| 1 | When ordering, please specify packaging code: e.g. HA4000-ALD | |
| Packaging: | D
= 13" machine-ready reel EIA 481 embossed plastic tape (200 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. |
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| 2 | Inductance is for the primary, measured across pins 2 and 4 at 200 kHz, 0.1 Vrms, 0 Adc. | |
| 3 | DCR for the primary is measured from pin 2 to pin 4. DCR for the secondary is for each winding. | |
| 4 | Leakage inductance is for the full primary and is measured with the secondary shorted. | |
| 5 | Output is with the secondary windings connected in series. Bias winding output is 10 V, 65 mA. | |
| 6 | Ambient temperature range: | –40°C to +85°C |
| 7 | Storage temperature range: | Component: –40°C to +85°C T&R packaging: –40°C to +80°C |
| 8 | Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. | |
| 9 | Electrical specifications at 25°C. | |
| Refer to Soldering Coilcraft Components before soldering. | ||
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