SR152A3R9DAA

FAQFrequently Asked Questions

• Can SR152A3R9DAA be used in RF or resonance circuits where capacitance stability matters over temperature? Yes. KYOCERA AVX SR152A3R9DAA uses a C0G/NP0 dielectric, so its capacitance stays very stable with temperature and bias compared with X7R or Y5V parts. For low-drift tuning, timing trim, or small-signal RF networks, SR152A3R9DAA is a practical choice when the circuit needs predictable behavior across the -55°C to 125°C operating range.
• Is SR152A3R9DAA suitable for replacing a 3.9 pF capacitor with tighter or looser tolerance? SR152A3R9DAA is specified at 3.9 pF with ±0.5 pF tolerance, so it fits designs that can tolerate normal ceramic capacitor spread. If the circuit is sensitive to Q, resonance, or calibration margin, verify the effective capacitance needed in-circuit rather than relying only on nominal value. KYOCERA AVX SR152A3R9DAA is often acceptable where small-value capacitance is needed, but the final fit depends on parasitics and the required tuning window.
• What should I check before using SR152A3R9DAA in a high-voltage node? SR152A3R9DAA is rated for 200V, so the circuit should stay within the capacitor’s working voltage under steady-state and transient conditions. In pulse, startup, or resonant environments, the actual voltage across the part can be higher than the supply rail because of ringing and layout inductance. For KYOCERA AVX SR152A3R9DAA, confirm both DC stress and peak waveform stress before committing it to the design.
• Can SR152A3R9DAA be used as an input or coupling capacitor in precision analog circuits? It can, provided the small capacitance value matches the function and the surrounding impedance is appropriate. SR152A3R9DAA is a 3.9 pF C0G/NP0 part, so it is better suited to high-frequency coupling, compensation, or trimming than to bulk decoupling. For low-frequency analog paths, the capacitance may be too small to provide meaningful filtering, so the circuit function should be checked first.
• Is SR152A3R9DAA a good option for replacing a different brand’s 3.9 pF radial ceramic capacitor? KYOCERA AVX SR152A3R9DAA is a reasonable replacement when the footprint, lead spacing, voltage rating, and dielectric class match the original part. The main differences to verify are lead length, body size, and the actual capacitance tolerance band, since those affect mechanical fit and circuit tuning. A direct substitution is usually safest when the original part was also a C0G/NP0 radial capacitor with similar voltage rating.
• What alternative part numbers should I compare with SR152A3R9DAA for redesigns or second sourcing? For redesigns, compare SR152A3R9DAA against other 3.9 pF, 200V, C0G/NP0 radial capacitors from major vendors, especially parts with the same lead spacing and similar body dimensions. The practical trade-off is usually availability versus exact mechanical match, because small-value capacitors can differ in lead form and seated height even when electrical values look equivalent. With KYOCERA AVX SR152A3R9DAA, confirm that the replacement preserves both the electrical behavior and the PCB hole pattern.
• Does SR152A3R9DAA work well in industrial equipment that runs for long periods at elevated temperature? SR152A3R9DAA is better aligned with long-life industrial use than many higher-dielectric ceramics because C0G/NP0 parts have very low capacitance drift and low loss. Its -55°C to 125°C operating range also fits many industrial environments. For KYOCERA AVX SR152A3R9DAA, the main long-term checks are solder joint reliability, mechanical stress on the radial leads, and whether the circuit ever sees overvoltage or repetitive surge conditions.
• Can SR152A3R9DAA be installed in a through-hole design that originally used a different lead spacing? SR152A3R9DAA uses 0.100" lead spacing, so it is intended for boards laid out around that radial footprint. If the original capacitor used a wider or narrower pitch, forcing the leads can introduce stress and reduce assembly quality. When substituting KYOCERA AVX SR152A3R9DAA, confirm hole spacing, insertion height, and clearance to nearby parts before changing the BOM.
• Is SR152A3R9DAA appropriate for decoupling a power rail? Not usually by itself. SR152A3R9DAA is only 3.9 pF, so it does not provide meaningful bulk or local decoupling for typical power rails. It is more suitable for high-frequency compensation, RF bypass trimming, or small-signal shaping where a very small capacitance is required. For supply stabilization, KYOCERA AVX SR152A3R9DAA would normally be paired with larger capacitors.
• What failure modes should I consider when using SR152A3R9DAA in a fielded product? The main design risks are overvoltage, mechanical lead stress, and using the part in a circuit where the capacitance value is too critical to tolerate tolerance spread. SR152A3R9DAA is a stable C0G/NP0 capacitor, so electrical drift is usually low, but the surrounding layout can still dominate behavior at high frequency. For KYOCERA AVX SR152A3R9DAA, review board flex, vibration, and transient stress if the product will see industrial or service environments.