DRH SERIES
BASIC MODEL HIGH CURRENT CHOKE
Applications :
．Power
supplies and power amplifiers.
．Switching
regulators.
．Speaker
crossover networks.
．RFI
suppression.
Shape and Dimensions (Dimensions are in mm) :
Item
DRH1420
DRH1820
DRH2620
DRH3525
A Max.
21.5
21.5
21.5
28.0
C Typ.
12.0
15.0
22.0
30.0
D Max.
16.5
21.0
28.0
40.0
H Min.
3.0
3.0
5.0
3.6
Features :
．High
saturation current .
．Wide
range of inductance.
．Ideal
for using in switching regulated power supply
applications.
．With
center hole for mechanical mounting.
．Varnish
coated or UL tube.
Product Identification :
DRH 1820 - 100 K - UL
(1)
(2)
(3) (4)
(5)
(1) Type :
Basic
model high current choke .
(2) Style : Core
OD=18
mm
L=20
mm .
(3) Inductance : Example :
100
for
10
uH
(4) Inductance tolerance:
K:
±10%;
M:
±
20% .
(5) Sleeve:
UL tube,
black; No code, no sleeve.
Characteristics :
．Saturation
Current (Isat): The current when the
inductance becomes 10% lower than its initial
value.(Ta=20℃)
．Operating
temperature : -20℃ to 85℃ .
Test equipment and test setup :
L : LCR meter @ 1kHz .
DCR : Milli-Ω meter .
．Electrical
specifications at 25℃
Lasting. Leaning. Leading
3L Electronic Corp.
36.1
Web : http://www.3lcoil.com
Part No.
1R0M
1R2M
1R5M
1R8M
2R2M
2R7M
3R3M
3R9M
4R7M
5R6M
6R8M
8R2M
100K
120K
150K
180K
220K
270K
330K
390K
470K
560K
680K
820K
101K
121K
151K
181K
221K
271K
331K
391K
471K
561K
681K
821K
102K
122K
152K
182K
222K
272K
332K
392K
472K
562K
682K
822K
103K
123K
153K
L @1kHz
(uH)
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
680
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10000
12000
15000
DCR (Ω) Max.
1420
0.003
0.003
0.004
0.004
0.005
0.005
0.005
0.006
0.007
0.007
0.008
0.009
0.010
0.011
0.015
0.016
0.025
0.030
0.040
0.046
0.062
0.069
0.077
0.083
0.095
0.127
0.181
0.217
0.240
0.300
0.336
0.460
0.636
0.696
1820
0.003
0.003
0.003
0.003
0.004
0.005
0.005
0.005
0.005
0.006
0.007
0.007
0.009
0.009
0.013
0.018
0.019
0.026
0.029
0.030
0.035
0.039
0.053
0.060
0.080
0.090
0.098
0.110
0.150
0.213
0.305
0.320
0.355
0.388
0.430
0.590
0.818
1.140
1.260
1.390
1.540
2620
-
-
-
-
-
-
-
0.003
0.003
0.003
0.004
0.004
0.006
0.008
0.009
0.01
0.011
0.012
0.017
0.022
0.024
0.026
0.029
0.032
0.034
0.046
0.064
0.072
0.080
0.110
0.122
0.169
0.187
0.205
0.256
0.288
0.426
0.462
0.518
0.705
1.020
1.140
1.270
1.670
1.860
3525
-
-
-
-
-
-
-
0.003
0.003
0.004
0.004
0.004
0.005
0.005
0.006
0.008
0.009
0.01
0.011
0.012
0.018
0.019
0.021
0.023
0.025
0.028
0.040
0.045
0.050
0.056
0.074
0.082
0.114
0.125
0.139
0.154
0.216
0.232
0.324
0.360
0.494
0.555
0.773
0.845
1.140
1.600
1.760
1.950
2.760
3.040
3.390
1420
28
26
23
21
19
17
15
14
13
12
11
10
9.0
8.5
7.5
6.8
6.0
5.5
5.0
4.5
4.0
3.7
3.4
3.1
2.8
2.5
2.3
2.1
1.9
1.7
1.5
1.4
1.3
1.2
I sat ( A ) Max.
1820
60
54
48
44
40
36
33
30
28
25
23
21
19
17
15
14
13
11
10
9.5
8.8
8.0
7.2
6.6
6.0
5.5
4.8
4.4
4.0
3.6
3.3
3.0
2.7
2.5
2.3
2.1
1.9
1.7
1.5
1.4
1.2
2620
-
-
-
-
-
-
-
32.0
29.0
26.0
24.0
22.0
20.0
18.0
16.0
15.0
13.5
12.0
11.0
10.0
9.2
8.5
7.6
7.0
6.5
5.8
5.2
4.7
4.3
3.9
3.5
3.2
2.9
2.7
2.4
2.2
2.0
1.8
1.6
1.5
1.3
1.2
1.1
1.0
0.9
3525
-
-
-
-
-
-
-
95
95
79
79
69
61
55
49
41
38
36
31
28
27
26
25
23
20
18
17
15
13
12
11
10
9.2
8.3
7.6
6.8
6.2
5.7
5.1
4.6
4.2
3.8
3.4
3.1
2.9
2.5
2.3
2.0
1.8
1.7
1.5
* Due to the limited space, the catalogue shows the typical specifications only. For more specific details ( characteristics graph, reliability, and others),
kindly invite you to access 3L official website www.3lcoil.com for better known.
Lasting. Leaning. Leading
3L Electronic Corp.
36.2
Web : http://www.3lcoil.com
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