ALQ07FM datasheet(25/28 Pages) ASTEC

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ALQ07 DC-DC Converter Technical Reference Notes

DATE: Aug., 9, 2003

Thermal Consideration

When 48V input, 60℃ ambient temperature, and 150LFM airflow, ALQ07 series are

rated for full power, and in this condition the case temperature can reach 90℃. For

operation above ambient temperature of 60℃, output power must be derated as

shown in Figure ‘Temperature Derating’, meantime, airflow at least 150LFM over the

converter must be provided to make the module working properly. the case

temperature should be used to determine maximum temperature limits. The

minimum operating temperature for the ALQ07 is -40℃.

Temperature Derating Curves

MTBF

The MTBF, calculated in accordance with Bellcore TR-NWT-000332 is 1,800,000

hours. Obtaining this MTBF in practice is entirely possible. If the ambient air

temperature is expected to exceed +25℃, then we also advise an oriented for the

best possible cooling in the air stream.

ASTEC can supply replacements for converters from other manufacturers, or offer

custom solutions. Please contact the factory for details.

ALQ07FM Datasheet(PDF) 25 Page - Astec America, Inc