Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | Silicon RF low-noise amplifier |
| Functional class | Broadband RF gain stage |
| Device family | BGA427 |
| Supply-voltage class | Up to 15 V family maximum |
| Collector-current class | Up to 25 mA family maximum |
| Package | SOT-343 / 4-pin RF package |
| Mounting | Surface mount |
| Lifecycle | Legacy / not recommended for new design context |
| Exact procurement code | BGA427H6327 |
Product Overview
BGA427H6327 is an Infineon silicon RF amplifier intended for low-noise and broadband small-signal gain stages. Its compact SOT-343 package and low-current RF architecture make it relevant for legacy receiver, IF and front-end designs where the original BGA427 footprint and bias network must be maintained.
Because this is a legacy device, replacement work should preserve the complete BGA427H6327 order code and validate gain, noise figure, bias and S-parameter behavior rather than selecting another SOT-343 RF transistor by package alone.

Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Function | RF low-noise amplifier / transistor gain stage |
| Technology | Silicon bipolar RF |
| Package | SOT-343 |
| Supply-voltage class | 15 V maximum family rating |
| Collector-current class | 25 mA maximum family rating |
| Mounting | SMT |
| Exact SKU | BGA427H6327 |
Legacy-RF Replacement Considerations
RF replacement cannot be qualified from DC ratings alone. Board matching networks depend on transistor gain, noise and impedance versus frequency, so the original BGA427 design data should be compared before approving a substitute.
Manufacturer Resource
Infineon BGA427 product information
Quality & Verification Support
Exact BGA427H6327 marking, SOT-343 package, lifecycle status and lot/date traceability can be reviewed before shipment.
Request a Quote
Request BGA427H6327 exactly and include quantity, date-code and traceability requirements.




