22 µF Capacitor 0805 - Samsung CL21A226MPQNNNE

Samsung Electro-Mechanics CL21A226MPQNNNE: 0805 MLCC, 22 µF ±20% X5R, 10 V. An Adom Basic Part: Adom keeps it on reels for its pick-and-place line, so boards built with it draw on Adom stock.

Key specs

Notes for designers

CL21A226MPQNNNE packs 22 µF of X5R ceramic into an 0805, rated 10 V with a ±20% tolerance (p.1), a bulk-capacitance part for low-voltage rails, not a precision one. The wide tolerance is the first hint: this is capacitance by volume, and even the factory measures it differently, at 120 Hz and 0.5 Vrms rather than the 1 kHz / 1.0 Vrms used for the smaller values, after a 150 °C de-aging bake. (p.2)

The design numbers: X5R holds capacitance within ±15% from −55 to +85 °C, dissipation factor is 0.1 max, insulation resistance is 10,000 MΩ or 100 MΩ·µF whichever is smaller, and the dielectric is proofed at 250% of rated voltage. (p.2)

The number that bites is DC bias. As a high-capacitance Class II ceramic, its effective capacitance falls as the applied voltage climbs toward the 10 V rating, the product manual requires checking the bias characteristic at the working voltage rather than budgeting the label value. (p.14) Reflow is rated 260±5 °C peak for 30 s, (p.2) and it ships 2,000 to a 7-inch reel on 4 mm-pitch embossed tape. (p.4)

Footprint

Redrawn from the datasheet land pattern (the previous pads were off by up to 0.326 mm).

Source: Land pattern from Samsung MLCC Product Manual, section 5-4 Land dimension (Reflow Footprint), p.32 (5-4 Land dimension, Reflow Footprint).

Chip outline

The part's 3D outline in the standard pose (pad 1 toward the viewer), drawn from the STEP by Adom's OpenCascade service; the part number sits where the laser-etched mark is on the 3D model and reads the same way.

Symbol options

The default symbol is the plain standard symbol. CL21A226MPQNNNE-outline.kicad_sym adds the chip outline beside it; the widget below builds other layouts in the browser and never changes the default.

Ordering

Downloads

Provenance

• Datasheet: SPECIFICATION (Reference sheet), per-MPN Samsung MLCC spec sheets (pages 4-36 of the full docs are the generic 'MLCC Product Manual' annex), revised No version/revision number printed in any of the 8 docs. Only in-body date: 'Product specifications included in the specifications are effective as of March 1, 2013.' (page 2 of all 8 docs)., Samsung Electro-Mechanics. md5 1a8b67beddb27758b82e3c4200fa021d
• Footprint: Land pattern from Samsung MLCC Product Manual, section 5-4 Land dimension (Reflow Footprint), p.32 (5-4 Land dimension, Reflow Footprint). Pads redrawn on 2026-10-03.
• 3D model and symbol: unchanged by the footprint pass; the etched STEP adds a flat virtual part-number mark (an identification aid, not the maker's marking).
• Earlier passes: provenance/ and CHANGES.md.

More

• Datasheet pages: the 36 datasheet pages as images.
• Assembly animation: the part dropping onto its pads, and Adom's pick-and-place picking it from tape.