Capacitors High-Q

List of technical and application notes relevant to Johanson Technology's High-Q Capacitors.

What are Johanson Technology High-Q capacitor technical notes?
Johanson Technology High-Q capacitor technical notes are engineering resources that help RF and microwave design engineers select, evaluate, and apply High-Q multilayer ceramic capacitors in high-frequency circuits.

The guides cover capacitor PCB pad layout, RF current and power handling, Q and ESR, S-parameter measurements, SRF and PRF, soldering profiles, MSL ratings, storage conditions, part number explanation, capacitor marking, and tin whisker reliability testing.

Title	Purpose / Key Insight
Capacitor PCB Pad Layout Recommendations	Provides land pattern and spacing guidelines to ensure strong solder joints and minimize mechanical stress on capacitors. Helps reduce cracking, improve reliability, and increase assembly yield.
Capacitor RF Current & Power	Explains how to determine a capacitor’s RF current handling and power dissipation limits. Ensures safe operation in high-frequency circuits by preventing overheating and failure.
EIA-198 2-Digit Capacitor Marking System	EIA-198 2-Digit Marking System explains the industry marking system used to identify capacitor values. Helps engineers quickly decode capacitance markings for proper component selection and verification.
Q & ESR Explained	Defines Quality Factor (Q) and Equivalent Series Resistance (ESR) in capacitors. Shows how these parameters directly affect circuit efficiency, losses, and RF performance.
S-Parameter Measurements	Describes how to measure and interpret S-parameters for RF capacitors. Guides engineers in analyzing insertion loss, return loss, and impedance matching.
Soldering Profiles & Guidelines for SMT Ceramic Components	Outlines recommended reflow soldering temperature/time profiles for MLCCs. Prevents thermal shock and cracking while ensuring reliable solder joints.
SRF & PRF for RF Capacitors	Explains Self-Resonant Frequency (SRF) and Parallel Resonant Frequency (PRF). Provides selection guidance for RF tuning, filtering, and impedance control.
MSL Rating (Moisture Level Sensitivity)	Defines how long a component can safely remain at room conditions before soldering or reflow. Prevents moisture absorption that can lead to cracking, delamination, or failures during assembly.
Recommended Storage Conditions	Lists ideal temperature, humidity, and packaging requirements for storing capacitors. Maintains long-term solderability and ensures component reliability before assembly.
Part Number Explanation	Breaks down Johanson’s capacitor part numbering system into clear segments. Each section of the code represents attributes such as dielectric, capacitance value, tolerance, case size, termination, and voltage rating.
Tin Whisker Testing	Summarizes Johanson’s compliance with JEDEC Class 2 tin whisker testing standards. Confirms plating finishes are robust for long-term reliability in critical applications.