Deep Dive: E6E09
The correct answer is D: Surface mount. Which of the following component package types have the least parasitic effects at frequencies above the HF range is surface mount. Surface-mount packages have shorter leads, reducing parasitics. For amateur radio operators, this is important for RF circuit design. Understanding this helps when selecting components.
Why Other Answers Are Wrong
Option A (TO-220): Incorrect. TO-220 has more parasitic effects - surface mount has least. TO-220 isn't the answer. Option B (Axial lead): Incorrect. Axial lead has more parasitic effects - surface mount has least. Axial lead isn't the answer. Option C (Radial lead): Incorrect. Radial lead has more parasitic effects - surface mount has least. Radial lead isn't the answer.
Exam Tip
Least parasitic effects above HF = surface mount. Think 'S'urface 'M'ount = 'S'mall 'M'ount (short leads, less parasitics). Surface-mount packages have shorter leads, reducing parasitics. Not TO-220, not axial lead, not radial lead - just surface mount.
Memory Aid
Least parasitic effects above HF = surface mount. Think 'S'urface 'M'ount = 'L'ess parasitics. Surface-mount packages have shorter leads, reducing parasitics. Important for RF circuit design.
Real-World Example
Component package types at frequencies above HF: Surface mount has the least parasitic effects. Surface-mount packages have very short leads, minimizing inductance and capacitance. This is the type - surface mount has least parasitics.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E6E
Reference: 2024-2028 Question Pool · E6 - Circuit Components
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E6E topic.