Product Introduction
FSF-5050-458M5 458.5MHz IF SAW Filter, 5×5mm 50Ω
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  • FSF-5050-458M5 458.5MHz IF SAW Filter, 5×5mm 50Ω

FSF-5050-458M5 458.5MHz IF SAW Filter, 5×5mm 50Ω

8-SMD, 5.0x5.0

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Products

SAW Filters

FEATURE

FCom Fuji Crystal FSF-5050-458M5 is a 458.5 MHz IF SAW filter in a compact 5×5mm SMD package for 50Ω UHF IF chains, private radio, industrial RF modules and narrowband receivers.
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Datasheet

Product Description

FSF-5050-458M5 458.5MHz IF SAW Filter

A compact 5×5mm SMD IF SAW filter centered at 458.5MHz for 50Ω UHF receiver chains. Built to deliver reliable passband selectivity, stable out-of-band suppression, and repeatable production performance. Ideal for private radio, industrial RF modules, and narrowband receivers that must hold margin under strong blockers.

Center frequency: 458.5MHz Package: SMD 5.0×5.0mm System impedance: 50Ω RoHS / Lead Free
Request RFQ / Contact Download Datasheet (PDF) SAW Filter Knowledge Hub
FSF-5050-458M5 IF SAW filter, 458.5MHz, 5×5mm, 50Ω
Image is for product illustration. Final marking and pin notation follow the released production version.

Positioning & Design Highlights

FSF-5050-458M5 belongs to FCom Fuji Crystal’s FSF-5050 IF SAW family engineered for compact UHF intermediate-frequency blocks. The 458.5MHz option is widely aligned with narrowband channel planning and multi-stage IF architectures where stable selectivity is essential.

  • Miniaturized 5×5mm SMD footprint for dense RF/IF layouts.
  • 50Ω reference design for easier system integration and testing.
  • Balanced passband flatness and stopband attenuation for robust adjacent-channel control.
  • Suitable for volume production with consistent RF performance.

Typical Applications

  • Private mobile radio and UHF terminals
  • Industrial telemetry, control and narrowband data radios
  • Multi-stage IF chains in rugged receivers
  • Special-purpose wireless modules requiring compact IF filtering

If you need adjacent center frequencies, customized bandwidths or tailored out-of-band targets, FCom can evaluate application-specific FSF-5050 designs.

Key Specs (Quick Summary)

Suggested test condition note: values are referenced to 50Ω source/load at 25°C unless otherwise specified in the datasheet.

Parameter Typical Range / Target Notes
Center frequency 458.5MHz Optimized for UHF IF channel selectivity
Package 5.0 × 5.0mm SMD Low-profile footprint for compact designs
System impedance 50Ω Referenced to standard RF test environments
Insertion loss Typically ~1.6–2.5dB Dependent on confirmed passband definition
Passband bandwidth Defined per IF plan (narrowband focus) Options available for different channel masks
Operating temperature Commercial to industrial options Outdoor/mission profiles supported upon request
Compliance RoHS / Lead Free Standard production control
Design Notes

Integration in 50Ω IF Chains

  • Maintain controlled-impedance traces and short transitions to minimize reflections and passband ripple.
  • Evaluate the input/output return loss of adjacent IF amplifiers during EVT/DVT.
  • If needed, add small LC trimming to align the board-level response with your channel mask.
Reliability

Temperature & Production Consistency

  • For outdoor or industrial terminals, prioritize wide-temperature confirmations in your qualification plan.
  • Request batch trend data to accelerate margin verification and production ramp-up.
  • Combine IF SAW selection with stable reference oscillators to improve overall receiver robustness.

Target Systems, Standards & Typical IF Placement

Target systems

Where FSF-5050-458M5 Fits

  • UHF narrowband receivers (PMR / industrial wireless / telemetry)
  • Superheterodyne and multi-conversion architectures with a 458.5MHz IF stage
  • 50Ω receiver blocks requiring repeatable IF selectivity for production

If your system is sensitivity-limited under blockers, IF SAW selectivity is often the simplest way to recover margin.

Typical placement

IF Chain Position

  • Placed between IF amplifier stages to shape channel mask and reduce adjacent-channel energy
  • Used before limiting stages to reduce overload and intermodulation risk
  • Validated with board-level S-parameter checks (return loss and ripple)

For best results, verify impedance environment at the exact placement point, not only on a standalone 50Ω fixture.

Ordering Code / Options

Ordering Guidance

  • Model: FSF-5050-458M5
  • Center frequency: 458.5MHz (adjacent options available)
  • Impedance reference: 50Ω source/load
  • Package: SMD 5×5mm
  • Temperature grade: confirm per application (commercial/industrial)

When requesting an RFQ, include your IF plan, required 3dB bandwidth, ripple tolerance, and stopband targets.

Selection Path / Upgrade Options

If your IF plan shifts or you need adjacent frequency coverage, compare these nearby FSF-5050 options:

Documents & Downloads

Datasheet

FSF-5050-458M5 458.5MHz SAW Bandpass Filter Datasheet (PDF)

Use the datasheet for the definitive electrical limits, test conditions, and recommended mounting guidance.

Package Outline

Mechanical outline to support PCB layout and assembly planning.

FSF-5050-458M5 IF SAW filter package outline, 5×5mm

FAQ

What frequency does the FSF-5050-458M5 cover?
FSF-5050-458M5 is centered at 458.5MHz for UHF IF selectivity. It is developed for 50Ω source/load conditions and supports narrowband receiver architectures where adjacent-channel control and out-of-band rejection are required.
Which applications are best suited for this IF SAW filter?
Typical use cases include private radio and UHF terminals, industrial telemetry, narrowband data links, and multi-stage IF chains that require compact 5×5mm SMD filtering with repeatable production performance.
Do I need an external matching network?
The series is referenced to 50Ω source/load conditions, so many designs can integrate it directly. For best results, verify PCB impedance and adjacent amplifier interfaces, and add minor LC trimming if needed to optimize ripple and return loss.
Can FCom offer nearby center frequencies or custom bandwidths?
Yes. If your channel plan requires adjacent frequencies or tailored passband/stopband targets, FCom can evaluate customized FSF-5050 solutions based on your system-level requirements.
Why is there no public price listed for FSF-5050-458M5?
Pricing depends on the confirmed specification version, order quantity, packaging requirements, and delivery terms. For an accurate quote, please request an RFQ and share your target frequency plan and volume forecast.
Can I request samples and the datasheet before mass production?
Yes. FCom supports sample requests and provides the datasheet to help you validate insertion loss, bandwidth, and stopband performance in your IF chain. Use the Contact/RFQ channel to share your IF plan and test setup.
What are the typical MOQ and lead time?
MOQ and lead time depend on the confirmed build option and order volume. Please contact FCom with your target quantity and schedule so we can provide current availability, lead time, and production planning guidance.
Do you provide packaging options and test reports?
Standard deliveries are typically provided in packaging suitable for SMT production. Test evidence such as typical response data can be shared upon request to support your qualification flow and incoming inspection needs.

Need a More Precise UHF IF Filtering Solution?

FCom Fuji Crystal supports additional FSF-5050 IF frequency points and tailored responses for demanding narrowband and industrial wireless architectures.

Request RFQ / Contact Explore Receiver Design Guide

For quality and environmental management references: ISO9001 and ISO14001. Technical support is available via Contact for selection, matching, and board-level verification.

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