Please refer to the English Version as our Official Version.

Europe: France~~(Français)~~ Germany~~(Deutsch)~~ Italy~~(Italia)~~ Russian~~(русский)~~ Poland~~(polski)~~ Czech~~(Čeština)~~ Luxembourg~~(Lëtzebuergesch)~~ Netherlands~~(Nederland)~~ Iceland~~(íslenska)~~ Hungarian~~(Magyarország)~~ Spain~~(español)~~ Portugal~~(Português)~~ Turkey~~(Türk dili)~~ Bulgaria~~(Български език)~~ Ukraine~~(Україна)~~ Greece~~(Ελλάδα)~~ Israel~~(עִבְרִית)~~ Sweden~~(Svenska)~~ Finland~~(Svenska)~~ Finland~~(Suomi)~~ Romania~~(românesc)~~ Moldova~~(românesc)~~ Slovakia~~(Slovenská)~~ Denmark~~(Dansk)~~ Slovenia~~(Slovenija)~~ Slovenia~~(Hrvatska)~~ Croatia~~(Hrvatska)~~ Serbia~~(Hrvatska)~~ Montenegro~~(Hrvatska)~~ Bosnia and Herzegovina~~(Hrvatska)~~ Lithuania~~(lietuvių)~~ Spain~~(Português)~~ Switzerland~~(Deutsch)~~ United Kingdom~~(English)~~

Asia/Pacific: Japan~~(日本語)~~ Korea~~(한국의)~~ Thailand~~(ภาษาไทย)~~ Malaysia~~(Melayu)~~ Singapore~~(Melayu)~~ Vietnam~~(Tiếng Việt)~~ Philippines~~(Pilipino)~~

Africa, India and Middle East: United Arab Emirates~~(العربية)~~ Iran~~(فارسی)~~ Tajikistan~~(فارسی)~~ India~~(हिंदी)~~ Madagascar~~(malaɡasʲ)~~

South America / Oceania: New Zealand~~(Maori)~~ Brazil~~(Português)~~ Angola~~(Português)~~ Mozambique~~(Português)~~

North America: United States~~(English)~~ Canada~~(English)~~ Haiti~~(Ayiti)~~ Mexico~~(español)~~

Home Products RF/IF and RFID RF Amplifiers~~AFS4-02001800-40-20P-4-8V~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

AFS4-02001800-40-20P-4-8V - L3 Narda-MITEQ

Name: L3 Narda-MITEQ AFS4-02001800-40-20P-4-8V
Brand: L3 Narda-MITEQ
SKU: AFS4-02001800-40-20P-4-8V
Availability: InStock
Rating: 5 (2 reviews)

Manufacturer Part Number: AFS4-02001800-40-20P-4-8V

Manufacturer: MITEQ (Narda-MITEQ)

Allelco Part Number: 98D-AFS4-02001800-40-20P-4-8V

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 34,430 pcs available, New & Original

Parts Description: AMPLIFIER

Package: Box

Data sheet: -

RoHs Status

~~Compare~~

Our certification

In stock: 34430

Specifications

AFS4-02001800-40-20P-4-8V Tech Specifications
L3 Narda-MITEQ - AFS4-02001800-40-20P-4-8V technical specifications, attributes, parameters and parts with similar specifications to L3 Narda-MITEQ - AFS4-02001800-40-20P-4-8V

Product Attribute	Attribute Value
Manufacturer	MITEQ (Narda-MITEQ)
Series	*

Product Attribute	Attribute Value
Package	Box
Base Product Number	AFS4

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Frequently Asked Questions(FAQ)

What is the typical gain and noise figure for the AFS4-02001800-40-20P-4-8V RF amplifier at 2.0 GHz, and how do these parameters impact receiver sensitivity in a wireless front-end design?: The AFS4-02001800-40-20P-4-8V delivers a typical small-signal gain of 40 dB across the 2.0 to 18.0 GHz band, with a noise figure typically below 3.5 dB at room temperature. This combination enables improved receiver sensitivity by amplifying weak incoming signals while adding minimal additional noise, which is critical in satellite communications and radar systems where signal integrity must be preserved despite long transmission paths.

How does the input/output return loss of the AFS4-02001800-40-20P-4-8V affect impedance matching in a 50-ohm system, and what design considerations are necessary to maintain stability and efficiency?: The AFS4-02001800-40-20P-4-8V exhibits an input return loss better than -15 dB and output return loss better than -10 dB over its operating band, indicating moderate impedance mismatch tolerance. While adequate for many applications, this level of reflection requires careful PCB layout and possibly external matching networks to minimize standing waves and prevent gain compression or instability, especially in cascaded amplifier stages.

What is the maximum input power before compression occurs in the AFS4-18001200-40-20P-4-8V, and how should it be used to evaluate linearity in a multi-carrier communication system?: The AFS4-18001200-40-20P-4-8V achieves an OIP3 of 55 dBm, meaning it begins exhibiting significant third-order distortion when input power exceeds approximately 10 dBm. In multi-carrier environments such as LTE or satellite backhaul links, this implies that intermodulation products could become problematic if signal levels are not controlled, necessitating predistortion techniques or power headroom allocation during system budgeting.

How does the supply voltage requirement of 4.8 V influence power consumption and thermal management when integrating the AFS4-02001800-40-20P-4-8V into a portable radar module?: Operating at 4.8 V with a quiescent current around 150 mA, the AFS4-02001800-40-20P-4-8V consumes roughly 720 mW under bias, contributing to heat generation proportional to (Pdc = V × I). In compact portable devices, this thermal load may require careful heat-spreading techniques or thermal vias on the PCB, particularly if multiple amplifiers are used in parallel or operated near their maximum rated conditions.

Can the AFS4-02001800-40-20P-4-8V be safely used in a pulsed radar application with 10% duty cycle and 5 kW peak power, and what precautions are needed to avoid damage?: The AFS4-02001800-40-20P-4-8V has a maximum input power rating of +30 dBm (1 W), making it unsuitable for direct connection to a 5 kW pulse without attenuation. Even with proper isolation, the instantaneous power during the pulse would far exceed safe limits, risking device failure. Therefore, an external limiter or directional coupler with sufficient isolation is essential to protect the amplifier from catastrophic damage.

How does the AFS4-02001800-40-20P-4-8V compare to the AFS4-02001800-30-20P-4-8V in terms of gain, noise performance, and power handling, and which is more suitable for low-noise receiver front-ends?: The AFS4-02001800-30-20P-4-8V offers 30 dB gain instead of 40 dB, but typically maintains a lower noise figure—often around 2.8 dB versus 3.5 dB—due to reduced internal loading and optimized biasing. While the AFS4-02001800-40-20P-4-8V provides higher gain, the lower-gain version may deliver superior NF for applications prioritizing sensitivity over signal boosting, such as deep-space telemetry receivers.

What is the recommended layout practice for minimizing parasitics when mounting the AFS4-02001800-40-20P-4-8V on a PCB for operation above 10 GHz?: At frequencies above 10 GHz, even small inductance from bond wires or trace routing can degrade performance. For the AFS4-02001800-40-20P-4-8V, it is advised to use surface-mount packaging with short leads, implement ground vias adjacent to the device, and maintain a solid reference plane beneath the amplifier. Additionally, bypass capacitors should be placed within 1 mm of the supply pins to suppress high-frequency transients.

Does the AFS4-02001800-40-20P-4-8V require external stabilization components, and what happens if the feedback loop is improperly terminated during integration?: The AFS4-02001800-40-20P-4-8V incorporates internal feedback for stability over its specified frequency range, but improper termination of the output port—such as leaving it open or driving an unmatched load—can cause oscillations due to reflected energy interacting with the internal network. Designers should ensure all ports are matched within ±10% of 50 ohms and verify transient response using time-domain simulations before full deployment.

How does the operating temperature range of the AFS4-02001800-40-20P-4-8V affect gain flatness and reliability in aerospace-grade systems?: With an operating range from -40°C to +85°C, the AFS4-02001800-40-20P-4-8V maintains gain variation within ±1.5 dB across the band. However, prolonged exposure near the upper limit may accelerate electromigration in the transistor layers, slightly degrading long-term reliability. Thermal derating and periodic burn-in testing are recommended for mission-critical avionics applications to ensure consistent performance over extended lifetimes.

Is it possible to cascade two AFS4-02001800-40-20P-4-8V units without degrading overall noise figure, and what matching strategy minimizes inter-stage interaction?: Cascading two identical AFS4-02001800-40-20P-4-8V amplifiers results in a total gain of ~80 dB but increases the effective noise figure according to Friis’ formula: NF_total ≈ NF1 + (NF2−1)/G1. Since G1 = 40 dB (~100x), the second stage’s contribution is modest, but careful isolation between stages via directional couplers or resistive pads prevents gain peaking and ensures stable operation across temperature variations.

What are the implications of using the AFS4-02001800-40-20P-4-8V in a frequency-agile software-defined radio (SDR) platform requiring rapid hopping between 2.0 and 8.0 GHz?: The AFS4-02001800-40-20P-4-8V supports continuous coverage from 2.0 to 18.0 GHz, making it compatible with SDR platforms hopping across this spectrum. However, gain variation within ±2 dB across the band may necessitate dynamic gain control or digital pre-distortion to maintain consistent output levels, especially if automatic level control (ALC) relies on fixed amplifier response characteristics.

How should ESD protection be implemented when handling the AFS4-02001800-40-20P-4-8V in production assembly, given its Moisture Sensitivity Level (MSL) of 1?: Although MSL 1 indicates unlimited shelf life and no bake requirement, the AFS4-02001800-40-20P-4-8V remains vulnerable to electrostatic discharge due to its internal GaAs or similar semiconductor process. It is strongly advised to use grounded wrist straps, conductive work surfaces, and ESD-safe trays during handling. Furthermore, input/output lines should be protected with transient voltage suppressors rated for RF signals to prevent latch-up or gate oxide breakdown.

What is the expected lifetime drift of the AFS4-02001800-40-20P-4-8V under continuous high-power operation, and how does it compare to ceramic-packaged alternatives?: Under normal use within rated specifications, the AFS4-02001800-40-20P-4-8V demonstrates less than 0.2 dB/year gain drift, primarily due to stable bias circuitry and robust metallization. Compared to some ceramic-packaged amplifiers, it offers superior long-term stability because of hermetic sealing and gold-wire bonding, which reduce corrosion and diffusion-related degradation over time.

Can the AFS4-02001800-40-20P-4-8V operate reliably in a humid coastal environment without additional encapsulation, and what environmental testing standards apply?: As an MSL 1 component, the AFS4-02001800-40-20P-4-8V is inherently resistant to moisture absorption and does not require special storage conditions. However, prolonged exposure to salt-laden air may corrode solder joints or connector interfaces. For harsh environments, conformal coating or sealed enclosures are recommended, though the device itself remains functional without such measures if assembled per standard IPC guidelines.

What is the minimum required isolation between transmit and receive paths when using the AFS4-02001800-40-20P-4-8V in a T/R module configuration?: In a typical T/R module, the AFS4-02001800-40-20P-4-8V receives signals after transmit cancellation. To prevent saturation from residual TX leakage, isolation greater than 40 dB between Tx and Rx chains is generally required. This ensures that even strong transmitted signals do not overdrive the LNA section, preserving linearity and avoiding compression or desensitization of the receiver.

How does the package type of the AFS4-02001800-40-20P-4-8V influence parasitic capacitance and high-frequency performance compared to chip-scale alternatives?: The AFS4-02001800-40-20P-4-8V uses a standard hermetically sealed package, introducing measurable leadframe and bond wire inductance and capacitance. While sufficient for most millimeter-wave applications up to 18 GHz, chip-scale alternatives offer lower parasitics and superior bandwidth. However, the chosen package balances cost, reliability, and ease of integration for production environments where board-level testing and reworkability are priorities.

What steps should be taken to verify the actual gain and noise performance of the AFS4-02001800-40-20P-4-8V in a prototype before mass production?: Before committing to production, perform vector network analyzer (VNA) measurements to confirm S-parameters, including gain flatness and return loss. Simultaneously, use a calibrated noise figure meter with cold-source method to validate NF claims. Environmental sweeps across temperature and supply voltage further ensure robustness, as datasheet values represent ideal laboratory conditions and may shift under real-world stress.

How does the REACH status of the AFS4-02001800-40-20P-4-8V simplify compliance for EU-based defense contractors, and are there any hidden material restrictions to consider?: Declared REACH unaffected, the AFS4-02001800-40-20P-4-8V contains no substances of very high concern (SVHC) above 0.1% weight-by-weight, easing export documentation and reducing audit complexity for EU projects. However, users should still review the full material declaration sheet for lead-free soldering compatibility and halogen content, as some subcomponents may have separate certifications beyond the general REACH exemption.

Parts with Similar Specifications

The three parts on the right have similar specifications to L3 Narda-MITEQ AFS4-02001800-40-20P-4-8V

Product Attribute
Part Number	AFS4-02001800-40-20P-4-GW	AFS4-02001800-45-20P-4-L-12V	AFS4-02001800-35-20P-4-L-12V	AFS4-02001800-40-20P-4
Manufacturer	L3 Narda-MITEQ	L3 Narda-MITEQ	L3 Narda-MITEQ	L3 Narda-MITEQ
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Series	-	-	-	-

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Circ***FixerTom

Sep 2, 2026

Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.
Retr***UWorks

Aug 31, 2026

Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.
Andr***PCBLab

Aug 28, 2026

I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.
Leat***O'Keefe

Aug 20, 2026

one of my hobbies is skydiving. and when i'm skydiving this works great.
Ilen***

Aug 20, 2026

This product works considerably well. It secretly improves my basketball by a lot.
Indu***ialPower

Aug 17, 2026

Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.
Nikh***ech

Aug 13, 2026

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.
Embe***dMotion

Aug 5, 2026

Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.
FPGA***dio

Jul 30, 2026

This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.
Nord***mbedded

Jul 20, 2026

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA