MOLDED WIREWOUND CHIP INDUCTORS
1. PART NO. EXPRESSION :
WI252018-R22KF-
(a)
(b)
(c) (d)(e) (f)
WI252018 SERIES
(a) Series code
(b) Dimension code
(c) Inductance code : R22 = 0.12uH
(d) Tolerance code : J = ±5%, K = ±10%, M = ±20%
(e) F : RoHS Compliant
(f) 11 ~ 99 : Internal controlled number
2. CONFIGURATION & DIMENSIONS :
A
R22
D
I
G
I
C
E
E
F
B
PCB Pattern
Unit:m/m
E
0.5±0.3
F
1.2±0.2
G
1.5 Ref.
H
1.5 Ref.
I
1.0 Ref.
A
2.5±0.2
B
2.0±0.2
C
1.8±0.2
D
2.2±0.2
3. SCHEMATIC :
4. MATERIALS :
d
(a) Core : DR Ferrite Core
(b) Wire : Enamelled Copper Wire
a
(c) Terminal : Tinned Copper Flat
(d) Capsulate : Epoxy Novolac Molding Compound
c
b
NOTE : Specifications subject to change without notice. Please check our website for latest information.
H
09.03.2011
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 1
MOLDED WIREWOUND CHIP INDUCTORS
5. GENERAL SPECIFICATION :
a) Temp. rise : 20°C Max.
b) Ambient temp. : 100°C Max.
c) Storage temp. : -40°C to +125°C
d) Operating temp. : -40°C to +125°C
e) Terminal strength : 0.5Kg Min.
f) Rated current : Current cause inductance drop within 10%
g) Resistance to solder heat : 260°C for 10secs
h) Resistance to solvent : Per MIL-STD-202F
WI252018 SERIES
6. RECOMMENDED REFLOW SOLDERING PROFILE :
Profile Feature
Preheat & Soak
Temperature min. ( T
smin
)
Temperature max. ( T
smax
)
Time ( T
smin
to T
smax
) ( t
s
)
Average ramp-up rate
( T
smax
to T
p
)
Liquidous temperature ( T
L
)
Time at liquidous ( t
L
)
Peak package body
temperature ( T
p
)
Time ( t
p
) within 5°C of the
specified classification
temperature ( T
c
)
Average ramp-down rate
( T
p
to T
smax
)
Time 25°C to peak
temperature
100°C
150°C
60~120 seconds
3°C/second max.
183°C
60~150 seconds
230°C
150°C
200°C
60~120 seconds
3°C/second max.
217°C
60~150 seconds
250°C
Sn-Pb Eutectic Assembly
Pb-Free Assembly
10 seconds max
10 seconds max
6°C/second max.
6 minutes max.
6°C/second max.
8 minutes max.
NOTE : Specifications subject to change without notice. Please check our website for latest information.
09.03.2011
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 2
MOLDED WIREWOUND CHIP INDUCTORS
7. ELECTRICAL CHARACTERISTICS :
Part No.
WI252018-R22 F-
WI252018-R27 F-
WI252018-R33 F-
WI252018-R39 F-
WI252018-R47
WI252018-R56
WI252018-R68
WI252018-R82
WI252018-1R0
WI252018-1R2
WI252018-1R5
WI252018-1R8
WI252018-2R2
WI252018-2R7
WI252018-3R3
WI252018-3R9
WI252018-4R7
WI252018-5R6
WI252018-6R8
WI252018-8R2
WI252018-100
WI252018-120
WI252018-150
WI252018-180
WI252018-220
WI252018-270
WI252018-330
WI252018-390
WI252018-470
WI252018-560
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
F-
Inductance
( µH )
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.00
1.20
1.50
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.00
12.00
15.00
18.00
22.00
27.00
33.00
39.00
47.00
56.00
68.00
82.00
100.00
Q
Min.
25
25
25
25
25
25
25
25
30
30
30
30
30
30
30
30
30
25
25
25
25
25
25
25
25
25
25
20
20
20
20
20
15
Test
Frequency
( MHz )
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
0.796
SRF
( MHz )
Min.
230
210
190
175
160
150
135
125
115
100
90
85
75
55
48
43
40
36
33
30
27
23
20
18
17
16
15
14
13
12
11
10
9
WI252018 SERIES
RDC
( )
Max.
0.50
0.55
0.60
0.65
0.68
0.75
0.85
1.00
1.10
1.20
1.30
1.45
1.55
1.70
1.90
2.10
2.30
2.50
2.70
3.05
3.50
3.80
4.40
4.80
5.50
6.30
7.10
9.50
11.0
12.1
16.6
19.0
21.0
IDC
( mA )
Max.
430
420
400
375
350
325
300
260
245
230
220
210
200
195
185
180
175
170
165
160
155
150
140
120
130
125
115
110
90
75
70
66
60
WI252018-680 F-
WI252018-820 F-
WI252018-101 F-
Inductance tolerance : J : ±5%
K : ±10%
M : ±20%
NOTE : Specifications subject to change without notice. Please check our website for latest information.
09.03.2011
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 3
MOLDED WIREWOUND CHIP INDUCTORS
8. PACKAGING INFORMATION :
( 1 ) CONFIGURATION
T
WI252018 SERIES
COVER TAPE
2.0±0.5
N
ØC
ØC
B
A
D
G
EMBOSSED CARRIER
* CARRIER TAPE WIDTH : D
P:4m/m
4 m/m
R22
R22
R22
R22
R22
R22
R22
( 2 ) DIMENSIONS
A
178
B
21±0.8
C
13
D
8
G
10
+0
N
50
-0
R22
Unit:m/m
T
12.5
( 3 ) Q'TY & G.W. PER PACKAGE
Packing : 2000pcs/reel
NOTE : Specifications subject to change without notice. Please check our website for latest information.
09.03.2011
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 4
MOLDED WIREWOUND CHIP INDUCTORS
9. RELIABILTY TEST :
WI252018 SERIES
TEST ITEM
SPECIFICATION
TEST CONDITION / TEST METHOD
ELECTRICAL PERFORMANCE TEST
INDUCTANCE L
Q
SELF RESONANCE
FREQUENCY SRF
DC RESISTANCE RDC
REFER TO STANDARD
ELECTRICAL
CHARACTERISTIC LIST
Q-METER : HP4342A,
HP4194A,
HPE4991A
HPE4991A
IMPEDANCE ANALYZER :
WHEATSTONE BRIDGE :
DIGITAL MULITMETER :
HP4194A,
YEW-2755
502BC
APPLIED THE CURRENT TO COILS, THE
RATED CURRENT IDC
INDUCTANCE CHANGE SHALL BE LESS THAN 10%
TO INITIAL VALUE & TEMPERATURE RISE SHALL
NOT BE MORE THAN 20°C
1. APPLIED THE ALLOWED DC CURRENT FOR
TEMPERATURE
RISE TEST
20°C MAX
10 MINUTES
2. TEMPERATURE MEASURE BY DIGITAL
SURFACE THERMOMETER
AFTER TEST, INDUCTORS
OVER LOAD TEST
SHALL BE NO EVIDENCE
OF ELECTRICAL AND
MECHANICAL DAMAGE
AFTER TEST, INDUCTORS
WITHSTANDING
VOLTAGE TEST
SHALL BE NO EVIDENCE
OF ELECTRICAL AND
MECHANICAL DAMAGE
INSULATION
RESISTANCE TEST
1000 MOHM MIN.
100 VDC APPLIED BETWEEN INDUCTOR TERMINAL
AND CASE
AC VOLTAGE OF 1000VAC APPLIED BETWEEN
INDUCTORS TERMINAL AND CASE FOR 1 MINUTE
APPLIED 2 TIMES OF RATED ALLOWED DC
CURRENT TO INDUCTOR FOR A PERIOD OF
5 MINUTES
MECHANICAL PERFORMANCE TEST
1. INDUCTORS SHALL BE
VIBRATION TEST
( LOW FREQUENCY )
NO EVIDENCE OF
ELECTRICAL AND
MECHANICAL DAMAGE
2. INDUCTANCE SHALL
SHOCK TEST
NOT CHANGE MORE
THAN ±5%
RESISTANCE TO
SOLDERING HEAT
3. Q SHALL NOT CHANGE
MORE THAN ±20%
1. AMPLITUDE :1.5 m/m
2. FFREQUENCY :10 -- 55 -- 10 HZ / 1MIN
3. DIRECTION :X, Y, Z
4. DURATION :2 HRS / X, Y, Z
INDUCTORS SHALL BE DROPPED 10 TIMES FROM
A HEIGHT OF 1m ONTO 3cm WOODEN BOARD
TEMP :260±5°C
TIME :10±1.0 SEC
NOTE : Specifications subject to change without notice. Please check our website for latest information.
09.03.2011
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 5
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