jb® SMD Capacitors – Compact Design, Reliable Performance

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SMD Aluminum Electrolytic | Low ESR | SMPS | DC/DC

Switch-mode power supplies and compact electronics require low ESR, optimized impedance, and long endurance in limited PCB space. jb® SMD Aluminum Electrolytic Capacitors are engineered for DC/DC converters, SMPS rails, LED drivers, and telecom equipment, delivering stable ripple suppression and robust power integrity with competitive total cost of ownership.

At a glance. Compared with standard radial capacitors, SMD types enable automated SMT assembly, support high-density layouts, and improve vibration tolerance and mechanical stability. These advantages translate into cleaner transients, lower self-heating, and more reliable operation across consumer, industrial, and networking platforms.

Why SMD Aluminum Electrolytic Capacitors Improve Power Integrity

In switching power architectures, ripple current flowing through the capacitor’s ESR converts to heat and shortens lifetime. Selecting low-ESR SMD capacitors reduces AC loss and temperature rise, which improves efficiency and minimizes undershoot/overshoot during load transients. Designers typically start from an allowable ripple target and derive an ESR budget using ESRmax ≈ ΔVripple / Iripple, then validate across frequency and temperature on the bench.

High-reliability SMD electrolytics support low impedance across the SMPS switching band.

Series Overview and Typical Use Cases

Series	Temp	Load Life	Target Features	Main Applications
JCS	85°C	2000h	Standard ESR	Home electronics, cost-sensitive SMPS
JCK	105°C	1000–2000h	Low ESR	DC/DC, chargers, TV power boards
JCD	105°C	2000h	Low impedance	Telecom, PoE, networking gear
JCF	105°C	2000–5000h	Ultra-low impedance	LED drivers, industrial SMPS

Production Line Preview

See how jb® ensures consistent manufacturing quality and process control for SMD electrolytics.

Cross-Reference and Sourcing Continuity

jb® maintains a broad SMD lineup that maps to leading brands, enabling drop-in or spec-matched replacements to reduce supply chain risk. Request our cross-reference to accelerate qualification and secure stable production.

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Always validate product selection with the official datasheet during design qualification. For high-temperature ambient above 60 °C, consider voltage derating.