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GALI-S66+
Mini-Circuits
IC AMP CELLULAR 0HZ-3GHZ SOT89
22924 Pcs New Original In Stock
RF Amplifier IC Cellular, PCS 0Hz ~ 3GHz SOT-89
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5.0 / 5.0
- (481 Ratings)
GALI-S66+
Product Overview
9833167
DiGi Electronics Part Number
GALI-S66+-DGManufacturer
Mini-Circuits
GALI-S66+
Description
IC AMP CELLULAR 0HZ-3GHZ SOT89Inventory
22924 Pcs New Original In Stock
RF Amplifier IC Cellular, PCS 0Hz ~ 3GHz SOT-89
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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GALI-S66+ Technical Specifications
Category
RF Amplifiers
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Frequency
0Hz ~ 3GHz
P1dB
3.3dBm
Gain
16.4dB
Noise Figure
2.4dB
RF Type
Cellular, PCS
Voltage - Supply
3V ~ 4V
Current - Supply
16mA
Test Frequency
2GHz
Mounting Type
Surface Mount
Package / Case
TO-243AA
Supplier Device Package
SOT-89
Datasheet & Documents
HTML Datasheet
GALI-S66+-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.33.0001
Additional Information
Other Names
3157-GALI-S66+CT
3157-GALI-S66+DKR
3157-GALI-S66+TR
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Delivery was swift, and tracking updates were detailed and timely.
Dec 02, 2025
The packaging exceeded my expectations in both durability and visual appeal, showcasing their quality standards.
Dec 02, 2025
Every product I've received from DiGi has been of outstanding quality.
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Frequently Asked Questions (FAQ)
What design challenges should I consider when using the GALI-S66+ in a wideband cellular receiver chain operating near its upper frequency limit of 3GHz?
When integrating the GALI-S66+ near 3GHz, be mindful of gain flatness and output matching, as performance can vary at band edges. Ensure proper PCB layout with controlled impedance traces and minimize parasitic inductance in grounding to maintain stability. At higher frequencies, even small mismatches can degrade noise figure and cause unintended oscillations. Consider adding a small series resistor or ferrite bead at the input if stability issues arise during testing. Always simulate your matching network across the full 0Hz–3GHz range to confirm consistent gain and NF performance with the GALI-S66+ in your application.
Can the GALI-S66+ be used as a drop-in replacement for the HMC133MS8GE in a 2.5GHz PCS band LNA stage, and what are the key performance trade-offs?
The GALI-S66+ is not a direct replacement for the HMC133MS8GE due to differences in gain (16.4dB vs. 22dB), supply current (16mA vs. 10mA), and output power handling. While both operate in the PCS band, the HMC133 has higher gain and better linearity, whereas the GALI-S66+ offers lower voltage headroom (3V–4V) and simpler biasing. If replacing, verify that the lower P1dB (3.3dBm) of the GALI-S66+ won't cause compression in your signal chain. You may need an additional gain stage or improved filtering to compensate for reduced dynamic range in high-interference environments.
How does the 16.4dB gain of the GALI-S66+ impact cascaded noise figure in a multi-stage RF amplifier design for cellular IoT devices?
With 16.4dB of gain, the GALI-S66+ can effectively dominate the noise contribution of subsequent stages when placed early in the chain. To minimize overall system noise figure, ensure the GALI-S66+ is the first active component after the antenna or filter, especially in low-signal environments. However, its 2.4dB noise figure is moderate—pair it only with components that have significantly higher noise figures and lower gain to maintain optimal cascade performance. Use Friis’ formula to validate that placing the GALI-S66+ upfront still meets your end-to-end NF target.
What are the risks of using the GALI-S66+ in a battery-powered 3V RF sensor node, and how can supply voltage tolerance affect long-term reliability?
Operating the GALI-S66+ at the lower end of its 3V–4V supply range is feasible, but dropping below 3V risks gain compression and instability. In battery-powered systems, account for voltage droop under load or at end-of-life; undervoltage can degrade gain and P1dB. Use a low-quiescent-current LDO to maintain a stable 3.3V rail, and verify performance across temperature and voltage corners. Additionally, monitor PCB thermal dissipation—though the SOT-89 package handles 16mA well, poor copper layout may lead to localized heating affecting long-term reliability.
Is the GALI-S66+ suitable for replacing discrete transistor amplifiers in a 900MHz ISM band repeater, and what layout considerations are critical for stable operation?
The GALI-S66+ can replace discrete FETs in 900MHz ISM repeaters, offering consistent 16.4dB gain and simplified design over custom matching networks. However, ensure isolation between input and output to prevent feedback—route traces carefully and shield if necessary. Use ground vias liberally around the SOT-89 package to reduce loop inductance. Also, decouple the supply pin with a 100nF ceramic capacitor close to the device. The GALI-S66+ improves yield and reliability over discrete designs but avoid layouts with shared impedances that could compromise its internal stability.
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.
GALI-S66+ CAD Models
Mini-Circuits GALI-S66+ PCB symbols & footprints
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