Overview
The BFS20,235 is an NPN medium frequency transistor produced by Nexperia USA Inc. This transistor is encapsulated in a SOT23 plastic package, which is designed for surface mount applications. It is AEC-Q101 qualified, making it suitable for automotive and other demanding environments. The BFS20,235 is known for its moderate current gain and finely tuned frequency response, making it an excellent choice for both analog and switching circuits.
Nexperia, the manufacturer, is a global leader in discrete, logic, and MOSFET devices, with a strong commitment to innovation, sustainability, and high-quality production. The company's extensive portfolio and global operations ensure that their components meet stringent standards and are widely available.
Key Specifications
| Parameter | Specification |
|---|---|
| Type | NPN medium frequency transistor |
| Package | SOT23 |
| Maximum Collector Current (IC) | 25 mA |
| Maximum Collector-Emitter Voltage (VCEO) | 20 V |
| Feedback Capacitance | Typ. 350 fF (very low) |
| Transition Frequency (fT) | 450 MHz |
| Maximum Power Dissipation (Ptot) | 250 mW |
| DC Current Gain (hFE) @ Ic, Vce | 40 @ 7 mA, 10 V |
| Collector-Base Voltage (VCBO) | 30 V |
| Emitter-Base Voltage (VEBO) | 4 V |
| Collector Cutoff Current (ICBO) | 100 nA |
| Radiation Hardening | No |
| RoHS Status | ROHS3 Compliant |
Key Features
- Low feedback capacitance (typ. 350 fF) for improved high-frequency performance.
- AEC-Q101 qualified, ensuring reliability in automotive and other demanding applications.
- Moderate current gain and finely tuned frequency response, suitable for both analog and switching circuits.
- Compact SOT23 package for space-efficient designs and enhanced thermal management.
- High transition frequency (450 MHz) for medium-frequency applications.
- Low collector cutoff current (100 nA) for reduced leakage.
Applications
The BFS20,235 transistor is versatile and finds applications in various fields, including:
- Intermediate Frequency (IF) and Very High Frequency (VHF) circuits, both in thick and thin-film technologies.
- Power management systems, where its stability and reliability are crucial.
- RF amplifiers and audio equipment, where signal integrity and amplification without distortion are essential.
- Radio communications, TV broadcasting, and satellite communications for precise frequency management.
Q & A
- What is the BFS20,235 transistor?
The BFS20,235 is an NPN medium frequency transistor in a SOT23 plastic package, produced by Nexperia USA Inc.
- What are the key applications of the BFS20,235 transistor?
It is used in IF and VHF circuits, power management systems, RF amplifiers, audio equipment, radio communications, TV broadcasting, and satellite communications.
- What is the maximum collector current of the BFS20,235 transistor?
The maximum collector current is 25 mA.
- What is the maximum collector-emitter voltage of the BFS20,235 transistor?
The maximum collector-emitter voltage is 20 V.
- What is the transition frequency of the BFS20,235 transistor?
The transition frequency is 450 MHz.
- Is the BFS20,235 transistor AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified, making it suitable for automotive applications.
- What is the feedback capacitance of the BFS20,235 transistor?
The feedback capacitance is typically 350 fF, which is very low.
- What package type does the BFS20,235 transistor use?
The transistor is packaged in a SOT23 plastic package.
- What is the maximum power dissipation of the BFS20,235 transistor?
The maximum power dissipation is 250 mW.
- Is the BFS20,235 transistor RoHS compliant?
Yes, it is ROHS3 compliant.
