1812 COUPLED INDUCTORS
Coupled Inductors for Critical Applications
ST450PHD
• Coupled inductors optimized for xDSL filtering applications
• Can be used as a common mode choke, 1:1 transformer or
in SEPIC applications
Core material
Ferrite
Terminations
RoHS compliant gold over nickel over moly-manganese.
Other terminations available at additional cost.
Weight
0.30 – 0.36 g
Ambient temperature
–40°C to +85°C with
Imax
current, +85°C to
+125°C with derated current
Storage temperature
Component: –55°C to +125°C.
Tape and reel packaging: –55°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)
Packaging
600/7″ reel; 2200/13″ reel Plastic tape: 12 mm wide,
0.25 mm thick, 8 mm pocket spacing, 3.9 mm pocket depth
PCB washing
Only pure water or alcohol recommended
Part number
1
ST450PHD102ML_
ST450PHD222ML_
ST450PHD472ML_
ST450PHD103ML_
ST450PHD153ML_
ST450PHD223ML_
ST450PHD393ML_
ST450PHD473ML_
L
DCR
SRF
±20%
2
Q
max
min
(µH) min
3
(Ohms) (MHz)
1.0
2.2
4.7
10
15
22
39
47
38
29
43
35
37
38
39
40
0.20
0.33
0.41
0.74
0.96
1.84
2.60
2.66
285
175
102
74
65
54
5.7
4.8
Isat
4
Imax
(mA) (mA)
2400 2100
1500 1200
1500 1000
800 780
700 710
500 530
450 420
400 390
4
B
E
1
C
D
1
4
A F
2
H
G
0.015
0,38
0.057
1,45
3
1. When ordering, please specify
termination
and
testing
codes:
ST450PHD473MLZ
Termination: L
= Silver-palladium-platinum-glass frit terminations
Special order:
T
= RoHS tin-silver-copper (95.5/4/0.5) or
S
= non-RoHS tin-lead (63/37).
Testing:
Z
= COTS
H
= Screening per Coilcraft CP-SA-10001
2. Per winding. Tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. Q measured at 1 MHz.
4. DC current at which the inductance drops 10% (typ) from its value
without current.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
1
4
0.020
0,51
2
0.115
2,92
3
Pad Detail
0.020
0,51
0.015 ref
0,38
0.048
1,22
0.018
0,46
Suggested
Recommended
Land Pattern
Land Pattern
A
max
0.231
5,87
B
max
0.196
4,98
C
max
0.150
3,81
D
E
ref
ref
0.107 0.100
2,72 2,54
0.040 min
1,02
0.030 ±0.002
0,76 ±0,05
F
ref
0.178
4,52
G
min
0.04
1,02
H
0.03 inches
0,76 mm
Note: Termination dimensions are before optional solder application.
For maximum termination dimensions including solder, add
0.006 in / 0,15 mm.
®
Specifications subject to change without notice.
Please check our website for latest information.
Document ST248-1
Revised 03/14/12
1102 Silver Lake Road
Cary IL 60013
© Coilcraft, Inc. 2012
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com
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