BFY405 is a hermetically sealed, high-reliability NPN silicon RF transistor designed for low-current applications and oscillators up to 12 GHz. It features a transition frequency of 20 GHz, a noise figure of 1.15 dB at 1.8 GHz, and a power gain of 23 dB at 1.8 GHz. The device is packaged in a Micro-X case with a 4-pin configuration. Maximum collector-emitter voltage is 4.5 V, collector current is 12 mA, and total power dissipation is 55 mW at a case temperature of 145 °C. Junction and operating temperatures range from -65 °C to 175 °C. The part is space qualified per ESCC Detail Specification 5611/008 and meets the requirements for flight use, with non-flight variants sharing identical electrical and mechanical characteristics.
HiRel Microwave Transistor
Summary of Features
Potential Applications
Quality level for Engineering Models
Applications
| Infineon Technologies AG | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | BFY405 (P) |
| Product Name | HiRel Silicon Bipolar Transistor |
| Package Type | Micro-X |
