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LFCW-133+
Mini-Circuits
LTCC LOW PASS FILTER, DC - 13250
2119 Pcs New Original In Stock
13.65GHz Low Pass Ceramic Filter 50Ohm 0603 (1608 Metric), 4 PC Pad
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5.0 / 5.0
- (357 Ratings)
LFCW-133+
Product Overview
9833220
DiGi Electronics Part Number
LFCW-133+-DGManufacturer
Mini-Circuits
LFCW-133+
Description
LTCC LOW PASS FILTER, DC - 13250Inventory
2119 Pcs New Original In Stock
13.65GHz Low Pass Ceramic Filter 50Ohm 0603 (1608 Metric), 4 PC Pad
Quantity
Minimum 1
Minimum 1
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LFCW-133+ Technical Specifications
Category
Ceramic Filters
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Frequency
13.65GHz
Impedance
50Ohm
Insertion Loss
2.5dB
Filter Type
Low Pass
Mounting Type
Surface Mount
Package / Case
0603 (1608 Metric), 4 PC Pad
Size / Dimension
0.063" L x 0.031" W (1.60mm x 0.80mm)
Height (Max)
0.028" (0.70mm)
Datasheet & Documents
HTML Datasheet
LFCW-133+-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8548.00.0000
Additional Information
Other Names
3157-LFCW-133+DKR
3157-LFCW-133+CT
3157-LFCW-133+TR
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
La gestion logistique de mon achat a été parfaite, avec des mises à jour régulières et une livraison en temps voulu.
de desembre 02, 2025
Très satisfait de la qualité de leur service, notamment le prix et la réactivité après-vente.
de desembre 02, 2025
Die Website von DiGi Electronics ist sehr benutzerfreundlich und erleichtert das Einkaufen enorm.
de desembre 02, 2025
Der Versand ging sehr schnell. Die Verpackung war robust und sorgte für einen sicheren Transport.
de desembre 02, 2025
Transparent pricing makes planning and budgeting much easier for my business.
de desembre 02, 2025
They offer excellent after-sales warranty services that give me peace of mind.
de desembre 02, 2025
DiGi Electronics’ focus on customer satisfaction makes them a leader in their field.
de desembre 02, 2025
I received my order sooner than expected thanks to their efficient dispatch.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the LFCW-133+ in a high-frequency RF front-end module operating near 13.65GHz?
When integrating the LFCW-133+ into an RF front-end near its cutoff frequency (13.65GHz), the primary risk is excessive insertion loss (>2.5dB typical) degrading signal-to-noise ratio in sensitive receiver paths. To mitigate, ensure tight impedance control on the PCB—maintain 50Ω microstrip lines with minimal vias or stubs near the 0603 footprint. Also, because the filter’s roll-off becomes gradual near cutoff, verify stopband rejection with harmonics from mixers or LO leakage won’t interfere. Simulate the layout using EM tools to account for parasitic capacitance from adjacent components due to the small 1.60mm x 0.80mm footprint. Always measure performance in-band with a calibrated VNA after prototyping.
Can the LFCW-133+ replace a Murata LFB212M1365 or TDK MAFQ1365 in a 5G small cell module, and what board modifications are required?
Yes, the LFCW-133+ can substitute for the Murata LFB212M1365 or TDK MAFQ1365, as all three are 13.65GHz low pass filters in similar 0603 footprints. However, verify the LFCW-133+ has comparable rejection above 14GHz—Mini-Circuits does not publish full stopband data, so bench testing is advised. Also, confirm that the LFCW-133+’s 2.5dB insertion loss doesn’t exceed the link budget compared to Murata’s typically lower 2.2dB. The pad layout may differ slightly; adjust solder mask openings to prevent wicking during reflow, and confirm grounding via the four-pad design. Use the same MSL1 handling, but review thermal profile compatibility with your assembly process.
How does the surface mount 0603 package of the LFCW-133+ impact thermal and mechanical reliability in wide-temperature automotive applications?
The LFCW-133+’s 0603 SMD package has limited thermal mass and solder joint area, increasing mechanical stress under thermal cycling conditions (e.g., automotive -40°C to +125°C). This can risk long-term solder joint fatigue, especially near high-power amplifiers generating PCB warpage. To improve reliability, use stencil designs with optimized solder paste volume and avoid placing near board edges or large components. While the LFCW-133+ is ROHS3 compliant and MSL1 rated (unlimited floor life), minimize exposure to repeated reflow cycles. Consider conformal coating in high-vibration environments, and avoid hand rework that could overheat the 0.70mm max height housing.
What PCB layout guidelines should I follow to prevent parasitic coupling when mounting the LFCW-133+ in dense phased array antenna systems?
In dense RF layouts like phased arrays, parasitic coupling through substrate modes or adjacent traces can resonate due to the LFCW-133+’s high cutoff frequency. Minimize this by maintaining at least 3x the substrate height (e.g., 0.3mm) clearance between the LFCW-133+ and neighboring components. Use coplanar ground shields around the 0603 footprint and place stitching vias within 1mm of ground pads. Avoid routing digital or LO lines beneath the filter—its ceramic LTCC construction is not hermetically shielded. Route input/output traces as short as possible, and ensure the ground plane is uninterrupted under the LFCW-133+ to preserve 50Ω impedance and prevent resonance in the passband.
How does the LFCW-133+ perform with harmonic suppression in wideband mmWave designs, and where does it risk insufficient attenuation compared to sharper roll-off filters?
The LFCW-133+ provides basic harmonic filtering up to 13.65GHz cutoff, but attenuation beyond 15GHz may be insufficient for mmWave systems with strong 2nd or 3rd harmonics (e.g., 26–30GHz). This limits its effectiveness in suppressing LO leakage or mixer spurs compared to elliptic or multi-pole SAW filters. For example, unlike the sharper-skirt response of a Qorvo TQ5311, the LFCW-133+ relies on gradual roll-off, increasing interference risk in full-duplex systems. To compensate, cascade the LFCW-133+ with a band-reject filter at critical harmonic frequencies or use it only post-amplifier where harmonic energy is already attenuated. Always validate suppression levels with spectrum analyzer measurements in the operating band.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LFCW-133+ CAD Models
Mini-Circuits LFCW-133+ PCB symbols & footprints
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