291A_15 Datasheet, PDF (1/2 Pages) Frontier Electronics. – SMD AIR WOUND COIL

291A & 291B Series – SMD AIR WOUND COIL Rev. A
A. Electrical Specifications:
P/N
Turns
L
(nH)
Tol.
291A-01_
1
2.5
K
291A-02_
2
5.0
K, J
291A-03_
3
8.0
J, G
291A-04_
4
12.5
J, G
291A-05_
5
18.5
J, G
291B-06_
6
17.5
J, G
291B-07_
7
22.0
J, G
291B-08_
8
28.0
J, G
291B-09_
9
35.5
J, G
291B-10_
10
43.0
J, G
B. Dimensions: mm (Inch):
Series
291A
Tol.
291B
Tol.
a
3.05
(0.120)
Max.
3.05
(0.120)
Max.
b
0.58
(0.023)
±0.38
(0.015)
0.58
(0.023)
±0.38
(0.014)
c
3.18
(0.125)
Max.
3.18
(0.125)
Max.
d
3.68
(0.145)
Max.
6.86
(0.270)
Max.
Q
Min.
145
140
140
137
132
100
102
105
112
106
e
2.92
(0.115)
±0.25
(0.010)
5.84
(0.230)
±0.25
(0.010)
Test Freq.
(MHz)
150
150
150
150
150
150
150
150
150
150
DCR max.
(mΩ)
1.1
1.8
2.6
3.4
3.9
4.5
5.2
6.0
6.8
7.9
SRF min.
(GHz)
12.5
6.5
5.0
3.3
2.5
2.2
2.1
1.8
1.5
1.2
I DC max.
(A)
4
4
4
4
4
4
4
4
4
4
f
4.19
(0.165)
Typ.
7.24
(0.285)
Typ.
g
3.30
(0.130)
Typ.
3.30
(0.130)
Typ.
h
1.65
(0.065)
Typ.
4.70
(0.185)
Typ.
i
2.79
(0.110)
Typ.
2.79
(0.110)
Typ.
j
1.27
(0.05)
Typ.
1.27
(0.05)
Typ.
C. General Information:
1. P/N: 291A-xx_, “291A” = Type, “xx” = Dash number, “_” = Inductance tolerance
2. P/N: 291B-xx_, “291B” = Type, “xx” = Dash number, “_” = Inductance tolerance
3. Tolerance “_”: G: ± 2%, J: ± 5%, K: ± 10%
4. Small and lightweight surface mounting type
5. High Q at high frequency
6. High self-resonance frequency
7. Maximum Temperature Rise: 15ºC (when measured at 25ºC ambient)
8. Inductance & Q measured with HP4291B Impedance Analyzer with HP16193 test fixture
9. SRF measured using the HP8753E Network Analyzer or equivalent
10. DCR measured using the Chroma 16502 or equivalent
11. Operating temperature: -40°C to +125ºC
12. Storage temp. : -40ºC to +85ºC
13. Inductance and Current Range: From 2.5 nH (4.0A) to 43.0 nH (4.0A)
14. SRF: From 1200 MHz to 12500 MHz
15. MSL: Level 1
D. Applications:
1. Game Consoles
2. Set Top Boxes
3. Cables Modems
4. Computers
5. Mobile Communication Devices (Cell Phones, Radios, etc.)
6. RF Filters
Foot Print
Frontier Electronics Corp.^®
http://www.frontierusa.com
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667 E. Cochran St., Simi Valley, CA 93065
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