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Mini-Circuits
®
ISO 9001 CERTIFIED
030529
FILTERS
CERAMIC LOW PASS DC t o 5400 MHz
LFTC
50 Ω
196
NEW!
NOTES:
uAqueous washable.
A. Environmental specifications and re-flow soldering information
available in General Information Section.
B. Units are non-hermetic unless otherwise noted. For details on
case dimensions & finishes see “Case Styles & Outline Drawings”.
C. Prices and Specifications subject to change without notice.
1. Absolute maximum power, voltage and current ratings:
1a.LPCH models: RF power input, 10W max. derate linearly to 3W at 100°C
1b.LFTC models, See spec table above. At 100°C ambient, derate
linearly to 7W (LFTC-850,-1350), to 6W (LFTC-1700) to 8W (LFTC-5400),
and to 4W (LFTC-2000,-3300,-4000)
2. Operating temperature, -55°C to 100°C, LFTC & LPCH models.
3. Storage temperature, -55°C to 125°C, LFTC models
LFTC-850 DC-850 1078 1500 2000-3500 5500 1.2 16 FR933 nw 3.75
LFTC-1350 DC-1350 1550 2100 2700-4000 7000 1.2 15 FR933 nw 3.75
LFTC-1700 DC-1700 1980 2700 3300-3880 7200 1.2 14 FR933 nw 3.75
LFTC-2000 DC-2000 2430 3450 4500-5400 8000 1.2 10 FR933 mw 3.75
LFTC-3300 DC-3300 4060 5600 — 10000 1.2 10 FR933 mw 3.75
LFTC-4000 DC-4000 5325 7250 — 9500 1.2 10 FR933 mw 3.75
(loss < 1.3 dB)
LFTC-5400 DC-5400 6410 9000-11000 — 12000 1.1 19 FR933 nw 3.75
fco
(MHz)
Nom.
STOP BAND
(MHz)
PASSBAND
(MHz)
u
MODEL
NO. (loss 3 dB)
Typ.
C
O
N
N
E
C
T
I
O
N
CASE
STYLE
Qty.
(10-49)
PRICE
$
Note B
(loss < 1 dB)
Typ.
VSWR (:1)
Passband
(loss > 20dB) fr20 dB
Typ. Typ.
features
lminiature size, 0.15"x0.15"x.028"
llow profile, .028" height
lhigh power handling, up to19W
applications
lharmonic rejection
linternal rejection
lreceivers & transmitters
see suggested PCB layout (PL-112) for LFTC models
model identification
Model marking
LFTC-850 LF3
LFTC-1350 LF1
LFTC-1700 LF4
LFTC-2000 LF8
LFTC-3300 LF9
LFTC-4000 LF10
LFTC-5400 LF5
POWER
INPUT
(W)
(loss >40 dB)
all specifications at 25°C
schematic
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Mini-Circuits
®
®
197
LPCH
CERAMIC LOW PASS DC to 900 MHz
pin connections
see case style outline drawings
PORT nu nw
INPUT 1 2
OUTPUT 5 5
GND 2,3,4,6,7,8 1,3,4,6
DEMO BOARD TB-189 TB-233
030725
Surface Mount
LPCH-500 DC-500 700 825-950 950-1450 1.2:1 20:1 BJ850 nu 5.95
LPCH-600 DC-575 890 1080-1175 1175-3000 1.2:1 20:1 BJ850 nu 5.95
LPCH-800 DC-750 1100 1300-1450 1450-3000 1.2:1 20:1 BJ850 nu 5.95
LPCH-1000 DC-900 1280 1550-1650 1650-3000 1.2:1 20:1 BJ850 nu 5.95
fco, MHz
Nom. STOP BAND, MHzPASSBAND, MHz
u
MODEL
NO. (loss 3 dB)
Typ.
C
O
N
N
E
C
T
I
O
N
CASE
STYLE
Qty.
(10-49)
PRICE
$
Note B
(loss < 1 dB)
Min.
VSWR
Passband Stopband
(loss > 20dB)
Min. (loss > 35 dB)
Min. Typ. Typ.
features
lexcellent rejection, 40 dB at 1.35 f3 dB
lexcellent power handling, 10W
llow height, .070" max.
l9 sections
lpatent pending
applications
lharmonic rejection
lVHF/UHF transmitters/receivers
llab use
LPCH-600
INSERTION LOSS
0
10
20
30
40
50
60
70
0
300
600
900
1200
1500
1800
2100
2400
2700
3000
FREQUENCY (MHz)
INSERTION LOSS (dB)
LPCH-800
INSERTION LOSS
0
10
20
30
40
50
60
0
300
600
900
1200
1500
1800
2100
2400
2700
3000
FREQUENCY (MHz)
INSERTION LOSS (dB)
LPCH-1000
INSERTION LOSS
0
5
10
15
20
25
30
35
40
45
50
0
300
600
900
1200
1500
1800
2100
2400
2700
3000
FREQUENCY (MHz)
INSERTION LOSS (dB)
see suggested PCB layout (PL-047) for LPCH models
NEW!
DC 0.9 1 1.3 1.7 2
40dB
20dB
3dB
1dB
FREQUENCY / Fco
ATTENUATION, dB
TYPICAL FREQUENCY RESPONSE
RF IN RF OUT
LPCH schematic
