• The ELF series inductors are available in ranging from 0505 to
1010 types.
• Because they are magnetically shielded, these parts can be
used in high-density mounting configurations.
• With a miniature winding construction, these inductors
nonetheless achieve high Q characteristics.
• Available in tape packaging to support automated mounting
machines.
APPLICATIONS
Televisions, VCRs, personal computers, and other electronic
equipment.
SPECIFICATIONS
Operating temperature range
Storage temperature range
Terminal tensile strength
–20 to +80°C
[Including self-temperature rise]
–40 to +80°C [Unit of products]
24.5N min.
ELF Series ELF0505 Type
PRODUCT IDENTIFICATION
ELF 0505 RA- 1R0 K -3
(1)
(2) (3) (4) (5) (6)
(1)Series name
(2)Dimensions
0505
ø5.5×5.5mm (lead pitch 5mm)
(3)Packaging style
RA
Ammo-pack
(4)Inductance value
R22
1R0
0.22µH
1µH
(5)Inductance tolerance
J
K
M
±5%
±10%
±20%
(6)TDK internal code
(Some products may not have this number. See the main body
for details.)
PACKAGING STYLE AND QUANTITIES
Packaging style
Ammo-pack
Quantity
2000 pieces
• All specifications are subject to change without notice.
(2/3)
001-01 / 20030822 / e512_elf0505.fm
Inductors
For General Applications
Radial
AMMO-PACK TAPING STYLE
SHAPES AND DIMENSIONS
5.5max.
8.5max.
121
J
ELF Series ELF0505 Type
ø5.5+0.5
25max.
ø0.5±0.05
5+0.8, –0.1
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Inductance
(µH)
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
∗1
Inductance
tolerance
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±20, ±10%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
Q min.
45
45
45
45
45
45
45
45
50
50
50
50
50
50
50
50
50
40
40
35
50
50
50
50
50
50
50
50
45
50
Test
frequency
L, Q (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
Self-resonant
frequency
(MHz)ref.
500
470
340
290
250
210
180
135
125
110
99
88
79
70
63
58
53
49
45
41
37
34
31
28
25
23
21
19
17.5
16
DC
resistance
(Ω)max.
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.16
0.19
0.2
0.23
0.26
0.29
0.32
0.36
0.4
0.44
0.5
0.8
0.89
1.02
1.14
1.3
1.46
1.65
1.83
2.05
2.3
Rated current (mA)
∗1
max.
Based on
Based on
inductance
temperature rise
change
600
895
600
895
600
895
600
895
600
895
600
895
600
895
600
895
600
895
600
865
600
795
600
775
600
720
600
680
600
645
590
610
540
575
500
550
455
520
395
490
380
385
350
365
320
345
290
325
265
305
240
285
220
270
200
255
185
240
170
230
Part No.
ELF0505RA-R22X
∗2
-3
ELF0505RA-R27X-3
ELF0505RA-R33X-3
ELF0505RA-R39X-3
ELF0505RA-R47X-3
ELF0505RA-R56X-3
ELF0505RA-R68X-3
ELF0505RA-R82X-3
ELF0505RA-1R0X-3
ELF0505RA-1R2X-3
ELF0505RA-1R5X-3
ELF0505RA-1R8X-3
ELF0505RA-2R2X-3
ELF0505RA-2R7X-3
ELF0505RA-3R3X-3
ELF0505RA-3R9X-3
ELF0505RA-4R7X-3
ELF0505RA-5R6X-3
ELF0505RA-6R8X-3
ELF0505RA-8R2X-3
ELF0505RA-100X-3
ELF0505RA-120X-3
ELF0505RA-150X-3
ELF0505RA-180X-3
ELF0505RA-220X-3
ELF0505RA-270X-3
ELF0505RA-330X-3
ELF0505RA-390X-3
ELF0505RA-470X-3
ELF0505RA-560X-3
Rated current: Value obtained when current flows and the temperature has risen to 20°C or when DC current flows and the initial value of inductance has
fallen by 10%, whichever is smaller.
∗2
X: Please specify inductance tolerance, M(±20%) or K(±10%) or J(±5%)
• Test equipment L, Q: YHP4340A Q METER, or equivalent
Rdc: MATSUSHITA VP-2941A DIGITAL MILLIOHM METER, or equivalent
SRF: TAKEDA RIKEN TR-4100 TRACKING SCOPE, or equivalent
• All specifications are subject to change without notice.
(3/3)
001-01 / 20030822 / e512_elf0505.fm
Inductors
For General Applications
Radial
ELECTRICAL CHARACTERISTICS
Inductance
(µH)
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
∗1
ELF Series ELF0505 Type
Inductance
tolerance
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
±10, ±5%
Q min.
45
45
40
40
40
40
40
40
40
40
40
40
40
40
30
30
Test
frequency
L, Q (MHz)
2.52
2.52
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
0.252
Self-resonant
frequency
(MHz)ref.
14.5
13
12
11
10
9.2
8.4
7.6
6.9
6.4
5.8
5.3
5
4.7
4.4
4.1
DC
resistance
(Ω)max.
2.6
3.1
3.3
4.7
5.4
5.6
6.9
7.8
8.9
13
14.8
16.5
18.5
26
31
37
Rated current (mA)
∗1
max.
Based on
Based on
inductance
temperature rise
change
155
215
145
195
130
190
120
160
108
150
99
145
90
130
82
125
75
115
69
96
63
90
58
85
53
81
48
68
44
62
40
57
Part No.
ELF0505RA-680X
∗2
3
ELF0505RA-820X-3
ELF0505RA-101X-3
ELF0505RA-121X-3
ELF0505RA-151X-3
ELF0505RA-181X-3
ELF0505RA-221X-3
ELF0505RA-271X-3
ELF0505RA-331X-3
ELF0505RA-391X-3
ELF0505RA-471X-3
ELF0505RA-561X-3
ELF0505RA-681X-3
ELF0505RA-821X-3
ELF0505RA-102X-3
ELF0505RA-122X-3
Rated current: Value obtained when current flows and the temperature has risen to 20°C or when DC current flows and the initial value of inductance has
fallen by 10%, whichever is smaller.
∗2
X: Please specify inductance tolerance, K(±10%) or J(±5%)
• Test equipment L, Q: YHP4340A Q METER, or equivalent
Rdc: MATSUSHITA VP-2941A DIGITAL MILLIOHM METER, or equivalent
SRF: TAKEDA RIKEN TR-4100 TRACKING SCOPE, or equivalent
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE CHANGE vs. DC SUPERPOSITION
CHARACTERISTICS
LCR
meter
Test circuit L=5H C=20000µF
A
DC
Specimen
1000
500
1000µH
330µH
100µH
33µH
INDUCTANCE CHANGE vs. TEMPERATURE
CHARACTERISTICS
6
∆L
/L (%)
4
6.8µH
10µH
33µH
100µH
40
60
Temperature (˚C)
–2
–4
–6
80
1000µH
2
1000µH
–20
100µH
0
20
100
50
Inductance (
µH
)
33µH
10µH
6.8µH
YHP 4275A LCR METER
f=10kHz
10
5
10µH
3.3µH
Q vs. FREQUENCY CHARACTERISTICS
140
120
100
1
Q
0.5
0.56µH
80
100µH
60
0.1
40
1
5
10
50 100
DC current (mA)
500 1000
20
0.02 0.05 0.1 0.2
Q-METER 4340A YHP
0.5 1
2
5
Frequency (MHz)
10 20
50
1200µH
2.2µH
• All specifications are subject to change without notice.
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