Document 190-1
Chip Inductors– 1008HQ Series (2520)
The 1008HQ Series offers the highest Q factors of any
Coilcraft chip inductor family, roughly 20% higher than our
popular 1008CS and HS parts. In addition, current handling
has also been improved with significantly lower DCR values.
Like all Coilcraft wire wound ceramic chip inductors, the
1008HQ Series provides exceptional SRFs, tight induc-
tance tolerance and batch consistency.
Inductance
3
(nH)
3.0 @ 50 MHz
4.1 @ 50MHz
7.8 @ 50MHz
10 @ 50MHz
12 @ 50MHz
18 @ 50MHz
22 @ 50MHz
33 @ 50MHz
39 @ 50MHz
47 @ 50MHz
56 @ 50MHz
68 @ 50MHz
82 @ 50MHz
100 @ 50MHz
Percent
tolerance
4
5
5
5
5,2
5,2
5,2
5,2
5,2
5,2
5,2,1
5,2,1
5,2,1
5,2
5,2
For even higher Qs, consider our surface mount spring
inductors that combine the high Q of an air wound coil with
the convenience of automatic placement.
Coilcraft
Designer’s Kit C123
contains samples of all 5%
inductance tolerance parts. Kits with 2% tolerance are also
available. To order, contact Coilcraft or purchase on-line.
at
http://order.coilcraft.com.
SRF min
6
(GHz)
8.10
6.20
3.80
3.60
2.80
2.70
2.05
1.70
1.30
1.45
1.23
1.15
1.06
0.82
DCR max
7
(Ohms)
0.04
0.05
0.05
0.06
0.06
0.07
0.07
0.09
0.09
0.12
0.12
0.13
0.16
0.16
Irms
8
(A)
1.6
1.6
1.6
1.6
1.5
1.4
1.4
1.3
1.3
1.2
1.2
1.1
1.1
1.0
Part number
1
1008HQ-3N0X_B_
2
1008HQ-4N1X_B_
1008HQ-7N8X_B_
2
1008HQ-10NX_B_
1008HQ-12NX_B_
1008HQ-18NX_B_
1008HQ-22NX_B_
1008HQ-33NX_B_
1008HQ-39NX_B_
1008HQ-47NX_B_
1008HQ-56NX_B_
1008HQ-68NX_B_
1008HQ-82NX_B_
1008HQ-R10X_B_
Q min
5
70 @ 1500 MHz
75 @ 1500 MHz
75 @ 500 MHz
60 @ 500 MHz
70 @ 500 MHz
62 @ 350 MHz
62 @ 350 MHz
75 @ 350 MHz
75 @ 350 MHz
75 @ 350 MHz
75 @ 350 MHz
80 @ 350 MHz
80 @ 350 MHz
62 @ 350 MHz
1. When ordering, please specify
tolerance
and
packaging
codes:
1008HQ-R10XGBC
Tolerance: F = 1% G
= 2%
J
= 5%
(Table shows stock tolerances in bold.)
Packaging: C
= 7″ machine-ready reel. EIA-481 embossed plastic
tape (2000 parts per full reel).
B
= Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter C instead.
D
= 13″ machine-ready reel. EIA-481 embossed plastic
tape Factory order only, not stocked (7500 parts per
full reel).
2. Part is wound on low profile coilform.
3. Inductance measured using a Coilcraft SMD-A fixture in an Agilent/
HP 4286A impedance analyzer with Coilcraft-provided correlation
pieces.
4. Tolerances in bold are stocked for immediate shipment.
5. Q measured using an Agilent/HP 4291A with an Agilent/HP 16193
test fixture.
6. For SRF less than 6 GHz, measured using an Agilent/HP 8753D
network analyzer and a Coilcraft SMD-D test fixture. For SRF greater
than 6 GHz, measured using an Agilent/HP 8722ES network
analyzer and a Coilcraft SMD-D test fixture.
7. DCR measured on a Cambridge Technology micro-ohmmeter and a
Coilcraft CCF840 test fixture.
8. Average current for a 15°C rise above 25°C ambient.
9. Operating temperature range –40°C to +125°C.
10. Electrical specifications at 25°C.
See Qualification Standards section for environmental and test data.
See Color Coding section for part marking data.
Specifications subject to change without notice.
Please check our website for latest information.
Document 190-1
Revised 02/09/05
© Coilcraft, Inc. 2005
Document 190-2
Chip Inductors – 1008HQ Series (2520)
Typical Q vs Frequency
120
110
100
90
80
70
60
50
40
30
20
10
0
1
10
100
1000
10000
47 nH
Typical L vs Frequency
22 nH
68 nH
10 nH
3.0 nH
120
110
100
90
100 nH
68 nH
Inductance (nH)
80
70
60
50
40
30
20
10
0
1
10
100
1000
10 nH
3.0 nH
22 nH
47 nH
Q Factor
100 nH
5000
Frequency (MHz)
Frequency (MHz)
B
overall
F
A
G
F
E
terminal
C
I
J
I
D
Terminal wraparound:
approx 0.015/0,38 both ends
H
Recommended
Land Pattern
A max B max C max* D ref
2,92
2,79
2,03
0,51
E
F
G
1,52
H
2,54
I
1,02
J
1,27
0.115 0.110 0.080 0.020 0.080 0.020 0.060 0.100 0.040 0.050
2,03 0,51
*Low profile parts: 0.050/1,27
Weight:
32.4 – 35.7 mg
17.1 – 17.7 mg (Low profile parts)
Terminations:
Silver-palladium-platinum
Tape and reel:
2000/7″ reel; 7500/13″ reel 8 mm tape width
For packaging data see Tape and Reel Specifications section.
Specifications subject to change without notice.
Please check our website for latest information.
Document 190-2
Revised 12/28/04
© Coilcraft, Inc. 2005
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