Series Number
3003 9th Avenue SW
DS6630
PO Box 50
DS1137
Watertown, SD 57201
DS1145
Toll free: 888-978-2638
DS1351
Ph: 605-886-3326
DS1976
Fax: 605-886-8995
Shielded Drum Core Inductors, Tape and Reel Easy Part Numbers: ( Series Number ) - ( Suffix Code )(Tolerance), example DS1137-150M
Bulk Packaging add (-B) to end of Part Numbering Sequence. example DS1137-150M-B
Series
Maximum Dimensions
Reference Dimensions
Number
L
W
H
Y
Z
A
B
C
0.260"
0.177"
0.115"
0.170"
0.050"
0.140"
0.055"
0.160"
[ 6.60 ]
[ 4.50 ]
[ 2.92 ]
[ 4.32 ]
[ 1.27 ]
[ 3.56 ]
[ 1.40 ]
[ 4.06 ]
0.421"
0.323"
0.146"
0.236"
0.079"
0.087"
0.094"
0.224"
[ 10.70 ]
[ 8.20 ]
[ 3.70 ]
[ 6.00 ]
[ 2.00 ]
[ 2.20 ]
[ 2.40 ]
[ 5.70 ]
0.421"
0.323"
0.177"
0.236"
0.079"
0.087"
0.094"
0.224"
[ 10.70 ]
[ 8.20 ]
[ 4.50 ]
[ 6.00 ]
[ 2.00 ]
[ 2.20 ]
[ 2.40 ]
[ 5.70 ]
0.510"
0.398"
0.201"
0.300"
0.100"
0.110"
0.118"
0.290"
[ 12.95 ]
[ 10.10 ]
[ 5.10 ]
[ 7.62 ]
[ 2.54 ]
[ 2.80 ]
[ 3.00 ]
[ 7.37 ]
0.730"
0.600"
0.300"
0.500"
0.100"
0.110"
0.115"
0.490"
[ 18.54 ]
[ 15.25 ]
[ 7.62 ]
[ 12.70 ]
[ 2.54 ]
[ 2.79 ]
[ 2.92 ]
[ 12.45 ]
L
7
Suffix
DCR
1
I
MAX
2-4
Tolerance
DCR
1
I
SAT
3
I
RMS
5
Tolerance
DCR
1
I
SAT
3
I
RMS
5
Tolerance
DCR
1
I
SAT
3
I
RMS
5
Tolerance
DCR
1
I
SAT
3
I
RMS
5
Tolerance
H
Codes
A
Suffix
6
A
A
Suffix
6
A
A
Suffix
6
A
A
Suffix
6
A
A
Suffix
6
1.0
1R0
0.040
3.0
M
0.021
5.80
5.00
M
1.5
1R5
0.045
2.8
M
0.022
5.20
4.50
M
2.2
2R2
0.050
1.8
M
0.040
2.50
2.50
M
0.032
5.00
3.80
M
3.3
3R3
0.055
1.6
M
0.039
3.90
3.30
M
3.9
3R9
0.055
2.10
2.10
M
4.7
4R7
0.060
1.4
M
0.054
2.80
2.70
M
5.0
5R0
0.080
1.70
1.70
M
5.6
5R6
0.065
1.95
1.95
M
6.8
6R8
0.065
1.2
M
0.075
2.80
2.20
M
7.5
7R5
0.100
1.40
1.40
M
8.2
8R2
0.080
1.75
1.75
M
10
100
0.075
1.0
M
0.165
1.20
1.20
M
0.100
1.50
1.50
M
0.101
2.40
2.00
M
0.040
7.00
3.60
M
12
120
0.172
1.10
1.10
M
0.120
1.40
1.40
M
15
150
0.090
0.80
M
0.181
1.00
1.00
M
0.140
1.30
1.30
M
0.150
2.00
1.50
M
0.048
5.60
3.20
M
18
180
0.190
0.90
0.90
M
0.160
1.20
1.20
M
22
220
0.110
0.70
M
0.250
0.80
0.80
M
0.180
1.10
1.10
M
0.207
1.50
1.30
M
0.059
5.00
2.80
M
27
270
0.270
0.70
0.70
M
0.200
1.00
1.00
M
33
330
0.190
0.60
M
0.300
0.65
0.65
M
0.240
0.92
0.92
M
0.334
1.40
1.10
M
0.075
4.50
2.60
M
39
390
0.380
0.60
0.60
M
0.350
0.84
0.84
M
47
470
0.230
0.50
M
0.580
0.55
0.55
M
0.425
0.75
0.75
M
0.472
1.00
0.80
M
0.097
4.00
2.40
M
56
560
0.620
0.50
0.50
M
0.530
0.68
0.68
M
68
680
0.290
0.40
M
0.920
0.45
0.45
M
0.668
0.60
0.60
M
0.138
3.00
2.00
M
82
820
0.980
0.40
0.40
M
0.730
0.54
0.54
M
100
101
0.480
0.3
M
1.050
0.50
0.50
M
0.207
2.40
1.70
M
120
121
1.120
0.45
0.45
M
150
151
0.590
0.26
M
0.293
2.10
1.30
M
180
181
220
221
0.770
0.22
M
0.470
1.90
1.10
M
270
271
330
331
1.40
0.2
M
0.780
1.10
0.86
M
390
391
470
471
1.80
0.19
M
1.080
1.10
0.73
M
680
681
2.20
0.18
M
1.400
0.96
0.64
M
1000
102
3.40
0.15
M
2.010
0.80
0.53
M
1500
152
4.20
0.12
M
2200
222
8.50
0.10
M
3300
332
11.00
0.08
M
4700
472
25.20
0.06
M
6800
682
30.80
0.04
M
10000
103
39.60
0.02
M
1) DCRs (DC resistances) are maximums @20C.
4) DC (Direct Current) current applied to produce a typical 30C temperature rise.
2) Total current rating (IDC + IAC)
5) DC (Direct Current) current applied to produce a typical 40C temperature rise.
3) DC (Direct Current) current applied to produce a typical 10% drop in nominal inductance.
6) Suffix of M = 20%
7) Inductance measured at 100kHz and 100mV
Call Toll Free: 888-978-2638 Website: www.coev.net
DS1976
DS1976
DS6630
DS1137
DS1351
DS1145
DS6630
DS1137
DS1145
DS1351
B
A
C
B
Suggested Land Pattern
Features:
High energy storage and low resistance.
Ideal for DC-DC buck or boost conversion.
Reliable surface mounting.
Drop-in replacements for industry prevalent competitor series.
Robust temperature deflection to prevent damage during solder reflow.
Tape and Reel mechanical specifications available upon request.
Operating temperature range -40C to +85C.
H
Y
W
L
Z
Suffix Code
XXX
1st significant digit
3rd significant digit
2nd significant digit
Parts will be marked with Significant Digit Dots OR Suffix code
Specifications subject to change without notice
Item
Specification
Test Method/Condition
Environmental
Static Humidity
After exposure part remains
within specified electrical
parameters for L, Q and DCR.
Storage Life
After exposure part remains
within specified electrical
parameters for L, Q and DCR.
Moisture Resistance
After exposure, part shall not
Per MIL-STD 202 Method 106, ten 24 hour cycles at +25C to
have a shorted or open winding.
+65C at 80 to 95% R.H. During any of the first 9 cycles, inductors
are revolved from the chamber and exposed to -10C for 3 hours.
Allow parts to dry for 2 hours before measurements are taken.
Temperature Cycle
After exposure part remains
10 cycles (Air to Air) 1 cycle shall consist of:
within specified electrical
30 minutes exposure to +85C
parameters for L, Q and DCR.
30 minutes exposure to -40C
Allow 20 minutes transition between extremes.
Temperature Shock
After exposure part remains
10 cycles (Air to Air) 1 cycle shall consist of:
within specified electrical
30 minutes exposure to -45C
parameters for L, Q and DCR.
30 minutes exposure to +125C
15 seconds maximum transition between temperatures
General
Storage Temperature
Range
-40C to +85C
Operating Temperature
Range
-40C to +85C
Flammability
IEC 695-2-2
Withstands needle-flame test
Other
Vibration
After exposure part remains
Inductors shall be randomly vibrated per NAVMAT P9492
within specified electrical
profile. Samples shall be subjected to 0.04G/Hz for a
parameters for L, Q and DCR.
minimum of 15 minutes per axis, for each of the three axes.
Mechanical Shock
After exposure part remains
Test per MIL-STD 202 method 213 test condition A, test
within specified electrical
mounted samples 3 axes, 6 times, totaling 18 shocks.
parameters for L, Q and DCR.
(50Gs, 11ms, half-sine).
Solderability
Wetting shall cover 90% minimum
of each termination
Component Adhesion
(Push Test)
4 pounds
Apply and measure force with a digital force gauge set.
Resistance to Solvent
No sign of degradation in
Withstands 6 minutes of alcohol.
appearance or marking detail.
Withstands 3 minutes forced spray Freon TMS
Load Life
After exposure, part shall not
Parts to be stored at 110C for 1000 hours with rated current
have a shorted or open winding.
applied. Parts to be tested at: start, 500 and 1000 hours. Allow
2 hours at room temperature before testing.
Series
Revision
Sheet 3 of 3
Subject parts to an environment of +50C 90 to 100% R.H. for 46 to 50
hours. After exposure, allow parts to dry for 2 hours before
measurements are taken.
Expose parts to an environment of +50C with 90 to 95% R.H. for 100
hours. After exposure, allow parts to dry for 2 hours before
measurements are taken.
DS SERIES
B
For Print Distribution to Customers
Dip pads in RMA flux, 63/37 solder (Sn/Pb) at 232C for 5 seconds 2
seconds.
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