Supper Power Inductors
1.
External Dimensions (Unit:m/m)
Type
APS25K12
A
2.5±
0.3
B
2.0±
0.3
C
1.25Max
D
2.8Ref
E
1.2Ref
F
2.0Ref
Q’TY/Reel
3000
2.
Part Number Code
APS
A
A:
B:
C:
D:
E:
F:
25
B
K
C
12
D
M
E
1R0
F
Supper Power Inductors
25：2.5x2.0
NO use
12：1.25 Max
M：±
20%
1R0=1.0uH
Series Name
Dimensions(mm)
Materials
Thickness(mm)
Tolerance
Inductance
3.
Electrical Characteristics
Part Number
APS25K12M1R0
Heat Rating
Inductance Test Frequency DC Resistance
Current DC(A)
(µH)
(MHz)
(mΩ)±30%
Max.
1.0
1MHz
47.0
2.9
Saturation
Current DC(A)
Max.
3.5
Notes:
a. All test data is referenced to 25℃ ambient.
b. Operating Temperature Range-40℃ to +125℃.
c. Irms:DC current(A) that will cause an approximate△ T of 40℃.
d. lsat :DC current(A) that will cause Lo to drop approximately 40%.
e. The part temperature(ambient + temp rise)should not exceed 125℃ under worst case operating
conditions. Circuit design,component placement, PWB trace size and thickness,airflow and other
cooling provisions all affect the part temperature，Part temperature should be verified in the end
application.
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Supper Power Inductors
4.
Test Data
ELECTRICAL CHARCTERISTIC
SPEC
TOL
NO
1
2
3
4
5
6
7
8
9
10
L(uH)
1.0
±
20%
1.020
1.001
0.994
1.043
0.985
0.964
0.956
1.037
1.025
0.974
DCR(mΩ)
47.0
±
30%
37.7
38.5
39.6
38.2
37.4
38.5
38.6
39.3
35.4
36.5
Isat(uH)
3.5A
(L0A-L3.5A)
/L0A≤40%
0.712
0.708
0.700
0.708
0.701
0.699
0.703
0.712
0.710
0.702
A(mm)
2.5
±
0.3
2.59
2.61
2.60
2.58
2.59
2.61
2.60
2.60
2.59
2.61
MECHANICAL DIMENSIONS
B(mm)
2.0
±
0.3
2.05
2.10
2.11
2.10
2.06
2.10
2.11
2.10
2.07
2.06
C(mm)
1.25
Max
1.16
1.15
1.17
1.14
1.18
1.15
1.16
1.15
1.14
1.16
D(mm)
2.8
Ref
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Test Equipmets: IM3536,VR126,VR7210,Calipers
Curve：
Inductance VS Temperature
1
0.8
70
56
42
28
14
0
0
0.8
1.6
2.4
3.2
4
ΔT(℃)
L(uH)
Indutance(uH)
0.6
0.4
0.2
0
Current(A)
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Tenperature(℃
)
Supper Power Inductors
5.
Test and Measurement Procedures
5.1 Test Conditions
5.1.1 Unless otherwise specified, the standard atmospheric conditions for measurement/test as:
a. Ambient Temperature: 20±
15℃
b. Relative Humidity: 65%±
20%
c. Air Pressure: 86KPa to 106KPa
5.1.2 If any doubt on the results, measurements/tests should be made within the following limits:
a. Ambient Temperature: 20±
2℃
b. Relative Humidity: 65%±
5%
c. Air Pressure: 86KPa to 106Kpa
5.2 Visual Examination
a. Inspection Equipment: 10X magnifier
5.3 Electrical Test
5.3.1 Inductance (L)
a. Refer to the third item.
b. Test equipment: IM3536 LCR meter or equivalent.
c. Test Frequency and Voltage: Refer to the third item.
5.3.2 Direct Current Resistance (DCR)
a. Refer to the third item.
b. Test equipment: VR126 or equivalent.
5.3.3 Saturation Current (Isat)
a. Refer to the third item.
b. Test equipment: Saturation current meter
c. Definition of saturation current (Isat): DC current at which the inductance drops approximate
40% from its value without current.
5.3.4 Temperature rise current (Irms)
a. Refer to the third item.
b. Test equipment (see Fig.5.3.4-1): Electric Power, Electric current meter, Thermometer.
c. Measurement method (see Fig. 5.3.4-1):
1. Set test current to be 0mA.
2. Measure initial temperature of choke surface.
3. Gradually increase current and measure choke temperature for corresponding current.
4. Definition of Temperature rise current: DC current that causes the temperature rise (△ T
=40° from 20° ambient (see Fig. 5.3.4-2).
C)
C
Fig.5.3.4-1
Fig.5.3.4-2
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Supper Power Inductors
5.4 Reliability Test
Items
Required Characteristics
Test Method/Condition
After fluxing, component shall be
dipped in a melted.
Solder: bath at 235℃±
5℃ for 5± seconds
0.5
The surface of terminal immersed shall
be minimum of 90% covered with a new
coating of solder
Solder Ability Test
Preheat:150±5℃ 60seconds.
Solder temperature: 250±5℃.
Flux: rosin.
Dip time:10±0.5seconds
Heat endurance of
Soldering
1.Components should have not evidence
of electrical and mechanical damage.
2.Inductance: within±
10% of initial value.
3.Impedance: within±
10% of initial value.
Terminal Strength
Specimen shall be soldered on a PCB and a
static force of 17.7N shall be applied on the
coil from X、Y directions individually and held
After soldering of X,Y withstanding at for 60±2S
below conditions .The terminal should not
Peel off. (Refer to figure at below)
Vibration Test
Inductance change: Within ± 10%
Without mechanical damage such as
break
1. Vibration frequency:
(10 Hz to 55 Hz to 10Hz) in 60 seconds as a
period
2. Vibration time:
Period cycled for 2 hours in each of 3
mutual perpendicular directions.
3. Amplitude: 1.5 mm max.
Drop test
△L≦±10.0％
change from an initial
value
Drop specimen three times on concrete floor
from a height 0f 1 meter which mounted on
test board.
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Supper Power Inductors
Items
Required Characteristics
Test Method/Condition
Temperature:125℃±
2℃ Time:96± hours.
2
Tested not less than 1 hour, nor more than 2
hours at room.
1. No case deformation or
change in appearance
2.
△
L/L≦10%
3.
△
Q/Q≦30%
4.
△
DCR/DCR≦10%
High Temperature
StorageTest
Temperature:-40℃±
2℃ Time:96± hours.
2
Tested not less than 1 hour, nor more than 2 hours at
room.
1. No case deformation or
change in appearance.
2 .
△
L/L≦10%
3.
△
Q/Q≦30%
4.
△
DCR/DCR≦10%
Low Temperature
Storage Test
Humidity
Resistance
1. No case deformation or
change in appearance.
2.
△
L/L≦10%
3.
△
Q/Q≦30%
4.
△
DCR/DCR≦10%
1. Environment condition: 85 ± 2
℃
Humidity: 80–85%
Applied Current: Rated current
2. Duration: 1000 + 4 / -0 hours
1. No case deformation or
change in appearance.
Thermal Shock Test 2.
△
L/L≦10%
3.
△
Q/Q≦30%
△
DCR/DCR≦10%
1.Repeat 100 cycles as follow:
(-40 ± 2
℃;
30 ± 3 min)
→(Room temp., 5 min)
→ (+125 ± 2
℃,
30 ± 3 min)
→ (Room temp., 5 min)
2. Recovery: 48 + 4 / -0 hours of recovery under the
standard condition after the test.
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