 
Q4338-BL
Flyback Regulator Transformer
| New RoHS part number is shown.
Lead was removed from terminations. The last character is now L to indicate RoHS compliance.
(View old data sheet.) |
- For flyback regulator applications using LM258X SIMPLE
SWITCHER®
- Recommended and approved by National Semiconductor
- 500 Vrms isolation between windings
- RoHS-compliant – Tin-silver over tin over nickel over phos bronze.
- COTS Plus tin-silver-copper and tin-lead terminations available
- Custom versions available
 Pricing 
Materials declaration 
PDF data sheet
SPECIFICATIONS
 Dimensions
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| T5 |
Q4338-BL |
66 |
59.4 |
499.5 |
3.5 |
0.090 |
0.039 (8-7)
0.58 (6-5)
0.60 (3-4) |
1 : 0.5
1 : 167
1 : 167 |
5 V, 1.8 A
12 V, 0.25 A
12 V, 0.25 A |
3.0 |
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| 1 |
Leakage inductance
measured across the primary at 0.10 Vrms, 100 kHz. |
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2 |
DC current at which the primary voltage is
measured. |
| 3 |
Ambient temperature range: |
–40°C to +85°C |
| 4 |
Storage temperature range: |
Component: –40°C to +85°C
Packaging: –55°C to +80°C |
| 5 |
Electrical specifications at 25°C. |
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Refer to Soldering Coilcraft Components before soldering. |
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