Environmental Applications

CZB, CZP
multilayer ferrite, power ferrite beads
environmental applications
Performance Characteristics
Parameter
Requirement
Operating Temperature
-55°C to +125°C
Storage Temperature
40°C @ 70% humidity
Resistance to Solder Heat
Change in Impedance: Relative to value before
test ±20%
Appearance: There shall be no cracking.
Solder Coverage: More than 75% of the terminal
electrode shall be covered with solder.
Test Method
–––
Sealed plastic bags with desiccant shall be used to
reduce the potential of oxidation on the terminations
during storage.
Flux: 5 - 10 second dip
After Flux: Air dry for 15 seconds
Preheat: 150°C ± 10°C
Preheat Time: 60 seconds
Solder Temperature: 260°C ± 5°C
Dip Time: 10 ± 1 second
Solderability
Solder Coverage: More than 95% of the termination
shall be covered with solder.
Flux: 5 - 10 second dip
After Flux: Air dry for 15 seconds
Solder Temperature: 245°C ± 5°C
Dip Time: 5 ± 0.5 second
Leach Resistance
Appearance: There shall be no visible signs of
physical or mechanical damage (i.e. no cracks).
EMI/EMC
filtering
Terminations: Termination must not be leached
away for more than 5%.
Insulation Resistance
Insulation Resistance: Min. 1G ohms
Solvent Resistance
Change in Impedance: Relative to value before
test ±10%
The bead shall be subjected to the following 5 steps
for the period of time shown below. The 5 steps
constitute one (1) rotation. 4 rotations shall be
carried out.
1) Flux: 5 - 10 seconds
2) After Flux: Air dry for 15 seconds
3) Solder Temperature: 230°C ± 5°C
4) Dip Time: 5 ± 0.5 second
5) Cool: Air cool for 60 seconds
–––
Cleaning by:
Washer: Ultrasonic washer (100W)
Solvent: Isopropyl alcohol
Time: 3 minutes
Terminal Strength
(hanging test)
Appearance: The terminal electrode shall not break
off, nor shall there be damage to the body.
Type:
1E
1J
2A
2B
W(kgf):
—
0.5
1.0
1.5
Time:
N/A
30 seconds ± 2 seconds
30 seconds ± 2 seconds
30 seconds ± 2 seconds
Terminal Strength
(push test)
Appearance: There shall be no evidence of
mechanical degradations to terminals or body.
Type:
1E
1J
2A
2B
W(kgf):
—
1.4
1.8
2.3
Time:
N/A
60 seconds
60 seconds
60 seconds
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
254
11/01/03
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
CZB, CZP
multilayer ferrite, power ferrite beads
environmental applications (continued)
Performance Characteristics
Parameter
Bending Strength
Requirement
Appearance: There shall be no physical
or mechanical damage.
Impedance: Relative to initial value
before test ±10%
Mechanical Shock
Vibration
Test Method
Board: 90 x 40 x 1.6mm
Bend: 1mm
Time: 5 sec
Appearance: There shall be no physical
or mechanical damage.
Force: 50G
Impedance: Relative to initial value
before test ±10%
There shall be 3 shocks in each of 6 directions
(18 shocks total)
Impedance: Relative to initial value ±10%
Only endurance conditioning by sweeping shall
be made. The entire frequency range from
10 - 2,000 Hz, return to 10 Hz in 20 minutes
(this will constitute one cycle).
Time: 11 msec
Amplitude: 15G
Thermal Shock
Appearance: There shall be no physical
or mechanical damage.
Step:
Temperature:
Time:
1-start
-40°C ± 2°C
—
2-hold
-40°C ± 2°C
30 minutes ± 5 minutes
Impedance: Relative to initial value ±20%
3-transfer —
0.5 minutes maximum
DCR: The DCR shall not exceed initial specified value. 4-hold
±105°C ± 2°C 30 minutes ± 5 minutes
5-transfer —
0.5 minutes maximum
Testing of the parts will be made at 0 hours, 250
hours and 500 hours. Before testing, the parts shall
Steps 1 through 5 constitute one complete cycle
be allowed to cool to room temperature for 24 hours.
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%
Life Test
Temperature: ±85°C ± 2°C
Relative Humidity: 85%
Time: 1,000 hours total
Measurements shall be taken at 0 hours, 250 hours,
500 hours and 1,000 hours and shall meet the
conditions stated above.
Apply: 100% rated current
Appearance: There shall be no physical
or mechanical damage.
Temperature: ±85°C ± 2°C
Impedance: Relative to initial value ±15%
Apply: 100% rated current
Measurements shall be taken at 0 hours, 250 hours,
500 hours and 1,000 hours and shall meet the
conditions stated above.
Time: 1,000 hours total
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/01/03
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
255
EMI/EMC
filtering
The test shall have a 15G peak and shall be
applied for a period of 4 hours (12 cycles) in each
of 3 mutually perpendicular directions (a total of
36 cycles within a total of 12 hours).