Document 170-1
SMT Power Inductors – DO3308P
• Handle saturating currents up to 4.2 Amps
• Defense Supply Center CID: A-A-59738
Designer’s Kit C309
contains 3 each of all values
Core material
Ferrite
Core and winding loss
See www.coilcraft.com/coreloss
Terminations
RoHS gold over nickel over phos bronze. Other
terminations available at additional cost.
Weight
594 – 640 mg
Ambient temperature
–40°C to +85°C with
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat
Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)
1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging
1000/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick,
12 mm pocket spacing, 3.7 mm pocket depth
PCB washing
Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Part number
1
DO3308P-472_L_
DO3308P-682_L_
DO3308P-103_L_
DO3308P-153_L_
DO3308P-223_L_
DO3308P-333_L_
DO3308P-473_L_
DO3308P-683_L_
DO3308P-104_L_
DO3308P-154_L_
DO3308P-224_L_
DO3308P-334_L_
DO3308P-474_L_
DO3308P-684_L_
DO3308P-105_L_
L
±20%
2
(µH)
4.7
6.8
10
15
22
33
47
68
100
150
220
330
470
680
1000
Percent
tol
3
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
DCR
max
(Ohms)
0.036
0.060
0.085
0.12
0.18
0.25
0.32
0.54
0.69
0.94
1.60
2.15
3.30
4.40
7.00
SRF
typ
(MHz)
50
47
37
35
26
19
14
12
11
9.0
6.0
5.5
4.5
3.5
2.5
Isat
4
(A)
4.2
3.9
2.7
2.3
1.8
1.6
1.3
1.1
0.87
0.74
0.56
0.50
0.40
0.33
0.29
Irms
5
(A)
3.2
2.6
2.3
1.9
1.5
1.2
1.0
0.9
0.73
0.62
0.51
0.40
0.33
0.28
0.23
1. Please specify
tolerance, termination
and
packaging
codes:
DO3308P-105MLD
Tolerance: M
= 20%
K
= 10%
Termination: L
= RoHS compliant gold over nickel over
phos bronze.
Special order:
T
= RoHS tin-silver-copper (95.5/4/0.5)
or
S
= non-RoHS tin-lead (63/37).
Packaging: D
= 13″ machine-ready reel. EIA-481 em-
bossed plastic tape (1000 parts per full
reel).
B
= Less than full reel. In tape, but not ma-
chine ready.
To have a leader and trailer added ($25
charge), use code letter D instead.
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. Tolerances in bold are stocked for immediate shipment
4. DC current at which inductance drops 10% (typ) from its
value without current.
5. Current that causes a 40°C temperature rise from 25°C
ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before
soldering.
US
+1-847-639-6400 sales@coilcraft.com
UK
+44-1236-730595 sales@coilcraft-europe.com
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 170-1
Revised 05/03/13
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 170-2
SMT Power Inductors – DO3308P Series
Typical L vs Frequency
10000
Typical L vs Current
10000
1000
1000 µH
1000
1000 µH
Inductance (µH)
100
100 µH
Inductance (µH)
100
100 µH
10
10 µH
10
10 µH
1
0.01
0.1
1
10
1
0.01
0.1
1
10
Frequency (MHz)
Current (A)
Irms Derating
120
110
100
0.118
max
*
3,00
0.330
dia
8,38
additional 0.01/0,254
*
Allow an and 0.005/0,127 in
in length
0.510
max
*
12,95
height for optional tin-lead and
tin-silver-copper application.
Percent of rated
I
rms
90
80
70
60
50
40
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
0.100
2,54
0.300
7,62
Internal code
0.370
max
9,40
25°C
0.100
2,54
0.145
3,69
0.110
2,79
Recommended
Land Pattern
0.115
2,92
0.405
10,29
Ambient temperature (°C)
Dash number
XXX
Start
Finish
Part marking since Feb. 2005. Parts manufactured
inches
to that date may have color dots.
prior
Dimensions are in
mm
www.coilcraft.com/colrpowr.cfm
Visit
for color dot marking details.
X
US
+1-847-639-6400 sales@coilcraft.com
UK
+44-1236-730595 sales@coilcraft-europe.com
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 170-2
Revised 05/03/13
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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