16
TDK-Lambda
PFE300SA
･
500SA Series
INSTRUCTION MANUAL
7-4. Recommended Soldering Condition
Recommended soldering temperature is as follows.
Soldering Dip
：
260
℃
, within 10 seconds
Preheat
：
130
℃
, within 60 seconds
7-5. Recommended washing Condition.
After soldering, following washing condition is recommended.
For other washing conditions, consult our Customer Support Group.
(1)
Recommended washing solution
・
IPA
（
Isopropyl Alcohol
）
(2)
Washing method
In order to avoid penetration inside the power module, washing should be done with brush.
Then, dry up thoroughly after washing.
8. Before Concluding Power Module Damage
Verify following items before concluding power module damage.
(1) No output voltage
- Is specified input voltage applied?
- During output voltage adjustment, is the fixed resistor or variable resistor setting correct?
- Is there no abnormality with the output load?
- Is the actual baseplate temperature within the specified operating temperature of this module?
(2) Output voltage is high
- Are the remote sensing terminals (+S, -S) correctly connected?
- Is the measurement done at the sensing points?
- During output voltage adjustment, is the fixed resistor or variable resistor setting correct?
(3) Output voltage is low
- Is specified input voltage applied?
- Are the remote sensing terminals (+S, -S) correctly connected?
- Is the measurement done at the sensing points?
- During output voltage adjustment, is the fixed resistor or variable resistor setting correct?
- Is there no abnormality with the output load?
(4) Load regulation or line regulation is large
- Is specified input voltage applied?
- Are the input or output terminals firmly connected?
- Is the measurement done at the sensing points?
- Are the input and output wires too thin?
(5) Large output ripple
- Is the measurement done according to methods described in the Instruction Manual or is it an equivalent
method?
