SAMWHA ELECTRONICS CO., LTD
Reliability & Test Condition
http://www.samwha.com/chip
This description in the this catalogue is subject to change without notice
CHIP INDUCTOR, Reliability & Test Condition
DPS-081104
CHIP INDUCTORS
Item Requirements Test Conditions
Operating
temperature range - 40 ℃~ + 85 ℃-
Storage
temperature range 40 ℃max., 70% RH max. at packing condition
Reflow soldering
More than 50% of the terminal electrode shall be
covered with new solder Preheat temperature : 150 ℃
Preheat time : 60 sec.
Solder temperature : 245 ±5 ℃
Soldering time : 10 sec. max.
(Reflow soldering profile)
High temperature
load resistance
Temperature : 85 ±3 ℃
Applied current : rated current
Time : 1000 ±12 hours
Measurement at room ambient
temperature after placing for 24 hours
Humidity
resistance
Temperature : 40 ±2 ℃
Humidity : 90 ±2 % RH
Time : 500 ±12 hours
Measurement at room ambient
temperature after placing for 24 hours
Solderability More than 90% of the terminal electrode shall be
covered with new solder
Preheat temperature : 100 ~ 150 ℃
Preheat time : 60 sec.
Solder temperature : 245 ±5 ℃
Soldering time : 10 ±1 sec.
Resistance to
soldering heat
1. No damage such as cracks should be
caused in chip element
2. More than 75% of the terminal electrode shall
be covered with new solder
3. Inductance shall not change more than ±10 %
4. Q shall not change more than ±20 %
Preheat temperature : 100 ~ 150 ℃
Preheat time : 60 sec.
Solder temperature : 270 ±10 ℃
Soldering time : 10 ±0.5 sec.
High temperature
resistance
Temperature : 85 ±3 ℃
Time : 500 ±12 hours
Measurement at room ambient
temperature after placing for 24 hours
1. No mechanical damage
2. Inductance shall not change more than ±10 %
3. Q shall not change more than ±20 %
ST ≥CT
1
2
CT
ST