SMTSDR SERIES
MINIATURE SMD CHIP CHOKE COILS
Applications :
．Pagers,Cordless
phone.
．High
Freq.Communication Products.
．Personal
computers.
．Disk
Drives and computer peripherals.
．DC
power supply circuits.
Shape and Dimensions (Dimensions are in mm) :
Item
SMTSDR322515
SMTSDR321618C
SMTSDR322520(C)
SMTSDR453226(C)
SMTSDR575047C
A
3.2±0.3
3.2±0.3
3.2±0.3
4.5±0.3
5.7±0.3
B
2.5±0.2
1.6±0.2
2.5±0.2
3.2±0.2
5.0±0.3
C
1.55±0.3
1.8±0.3
2.0±0.3
2.6±0.3
4.7±0.3
E Min.
0.7
0.7
0.7
1.0
1.3
F Min.
0.7
0.7
0.7
1.0
1.7
H
2.0
1.5
2.0
3.0
5.0
I
1.5
1.5
1.5
2.0
2.0
J
1.0
1.0
1.0
1.2
2.0
Features :
．These
miniature chip inductors wound on a special
ferrite core.
．SMTSDR322520
/ 453226 / 322515 are high Q value
at high frequencies and low DC resistance.
．SMTSDR321618C
/ 322520C / 453226C / 565047C
are low DC resistance, high current capacity, and
high impedance characteristics. They are excellent
for use as choke coil in DC
power supply circuits.
Product identification :
SMT
(1)
SDR453226
(2)
C
(3)
-
101
(4)
K
(5)
(1)Type :
Surface Mounting Type.
(2)Style :
SDR
Type core,
L=4.5mm W=3.2 Ht=2.6.
(3)C: for Choke use, No
C:
for general use.
(4)Inductance :
101
for
100uH.
(5)Inductance tolerance :
J
:
±5%;
K
:
±10%;
M
:
±20%.
Characteristics :
．Rated
Current: It is either the inductance is 10%
lower than its initial value in DC. saturation
characteristics or temperature raise becomes
△
T=20℃(Ta=20℃), whichever is lower.
Test equipments :
．Inductance
measured at 0Adc on HP 4284A LCR
meter or equivalent.
．DCR
measured on Chroma 16502 micro-ohmmeter
or equivalent.
．Electrical
specifications at 25℃.
3L Electronic Corp.
11.1
Web : http://www.3lcoil.com
．Operating
temp. : -30℃ to 105℃.
Lasting. Leaning. Leading
l
SMTSDR 322515 series
Part No.
SMTSDR322515-1R0M
SMTSDR322515-2R2M
SMTSDR322515-4R7M
SMTSDR322515-100K
SMTSDR322515-150K
SMTSDR322515-220K
SMTSDR322515-330K
SMTSDR322515-470K
SMTSDR322515-680K
SMTSDR322515-101K
Inductance
L
(uH)
1.0
2.2
4.7
10
15
22
33
47
68
100
TEST
Freq.
( 0.1V)
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
DCR
(Ω)
Max.
0.078
0.126
0.195
0.42
0.75
0.92
1.40
2.75
3.60
4.50
Rated
Current
(mA) Max.
1000
790
650
400
300
250
200
170
130
100
SRF
(MHz)
Min.
100
64
43
26
22
19
17
13
9
8
Typical performance curves :
101
100
4R7
Lasting. Leaning. Leading
3L Electronic Corp.
11.2
Web : http://www.3lcoil.com
l
SMDSDR 322520 series
Part
No.
Inductance (μH)
Nominal Tolerance Test
Value
(±%)
Freq.
1.0
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
68
82
100
120
150
180
220
270
330
390
470
560
M
M
M,K
M,K
M,K
M,K
M,K
M,K
M,K
M,K
M,K
M,K
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
K,J
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1kHz
1kHz
Quality Factor
Spec.
Test
Min.
Freq.
20
20
20
20
20
20
20
20
20
20
20
20
35
35
35
35
35
35
40
40
40
40
40
40
40
40
40
40
40
40
40
50
50
50
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
796kHz
796kHz
796kHz
796kHz
796kHz
796kHz
796kHz
796kHz
796kHz
796kHz
DCR
(Ω)
Max.
0.50
0.60
0.60
0.70
0.80
0.90
1.0
1.1
1.2
1.3
1.5
1.6
1.8
2.0
2.2
2.5
2.8
3.1
3.5
3.9
4.3
4.9
5.5
6.2
7.0
8.0
9.3
10.2
11.8
12.5
13.0
22.0
25.0
28.0
SRF
(MHz)
Min.
100
100
75
60
50
43
38
35
31
28
25
23
20
18
16
15
14
13
12
11
11
10.0
9.0
8.5
8.0
7.5
7.0
6.0
5.5
5.0
5.0
5.0
5.0
5.0 (REF.)
Rated
Current
(mA) Max.
445
425
400
390
370
320
300
290
270
250
240
225
190
180
170
165
150
125
115
110
100
85
80
70
80
75
70
65
65
65
65
50
45
40
SMTSDR322520 -1R0
□
SMTSDR322520 -1R2
□
SMTSDR322520 -1R5
□
SMTSDR322520 -1R8
□
SMTSDR322520 -2R2
□
SMTSDR322520 -2R7
□
SMTSDR322520 -3R3
□
SMTSDR322520 -3R9
□
SMTSDR322520 -4R7
□
SMTSDR322520 -5R6
□
SMTSDR322520 -6R8
□
SMTSDR322520 -8R2
□
SMTSDR322520 -100
□
SMTSDR322520 -120
□
SMTSDR322520 -150
□
SMTSDR322520 -180
□
SMTSDR322520 -220
□
SMTSDR322520 -270
□
SMTSDR322520 -330
□
SMTSDR322520 -390
□
SMTSDR322520 -470
□
SMTSDR322520 -560
□
SMTSDR322520 -680
□
SMTSDR322520 -820
□
SMTSDR322520 -101
□
SMTSDR322520 -121
□
SMTSDR322520 -151
□
SMTSDR322520 -181
□
SMTSDR322520 -221
□
SMTSDR322520 -271
□
SMTSDR322520 -331
□
SMTSDR322520 -391
□
SMTSDR322520 -471
□
SMTSDR322520 -561
□
Typical performance curves :
561
101
560
220
100
Lasting. Leaning. Leading
3L Electronic Corp.
11.3
Web : http://www.3lcoil.com
Typical performance curves :
222
102
331
100
8R2
Lasting. Leaning. Leading
3L Electronic Corp.
11.5
Web : http://www.3lcoil.com
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