MULTILAYER FERRITE
MCB/MCP/MCI/MHI
INDUCTOR
SPEER ELECTRONICS, INC.
ENVIRONMENTAL & MECHANICAL CHARACTERISTICS
Item
Requirement
Conditions
Board: 90x40x1 .6mm
Bend: 1mm
Time: 5 sec
Bending Strength
Appearance: There shall be no physical or
mechanical damage.
Impedance: Relative to initial value before
test ±10%
Mechanical Shock
Vibration
Appearance: There shall be no physical or
Force: 5OC
Time: 11 msec
There shall be 3 shocks in each of -
6 directions (18 shocks total).me
mechanical damage.
Impedance: Relative to initial value
before test ±10%
Impedance: Relative to initial value ±10%.
Only endurance conditioning by
sweeping shall be made. The entire
frequency range from 10-2,000Hz
return to10Hz in 20 minutes (this
shall constitute one cycle).
CH
I
Amplitude:1.5mm
The test shall have a 1 SC peak and
Shall be applied for a period of 4
hours (12 cycles) in each of 3 m
mutually perpendicular directions (a t
total of 36 cycles within a total of 12
hours).
`
Thermal Shock
Appearance: There shall be no physical or
mechanical damage.
Step
1-start
Temperature Time
-40ºC ±200
Impedance: Relative to initial value ±20%.
DCR: The DOR shall not exceed initial
specified value.
2-hold
3-transfer
4-hold
-40ºC ±200
30 mm ±5 mm
0.5 mm max.
30 mm ±5 mm
0.5 mm max.
+1050º ±200
5-transfer
Testing of the parts will be made at 0 hours,
250 hours and 500 hours. Before testing, t
he parts shall be allowed to cool to room
temperature for 24 hours.
Steps 1 thru 5 constitute one complete
cycle and the test shall consist of a
total of 500 cycles.
Load Humidity
Appearance: There shall be no physical or
mechanical damage.
Impedance: Relative to initial value ±15%.
Temperature: 85ºC ±200
Relative Humidity: 85%
Time: 1,000 hours total
Apply: 1 OO%rated current
Measurements shall be taken at 0 hours,
250 hours, 500 hours and 1,000 hours and
shall meet the conditions stated above.
Life Test
Appearance: There shall be no physical or
mechanical damage
Impedance: Relative to initial value ±15%
Temperature: 85ºC ±2ºC
Time: 1,000 hours total
Apply: 100% rated current
Measurements shall be taken at 0 hours,
250 hours, 5OO hours and 1,000 hours and
shall meet the conditions stated above.
TELEPHONE: 814-362-5536
FAX: 814-362-8883
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