The KEMET C1812X221JGGACTU is a ceramic capacitor designed in the 1812 surface-mount package, offering a balance of capacitance density and voltage handling for general-purpose circuit applications. With an active product status and ROHS3 compliance, this component meets current environmental regulations and is suitable for integration into commercial and industrial designs requiring lead-free assembly processes.
This ceramic capacitor utilizes dielectric materials that provide stable performance across varying operating conditions. The 1812 form factor, measuring approximately 4.5 mm × 3.2 mm, accommodates moderate power dissipation and allows for reliable placement in high-density PCB layouts where thermal management and board space are design considerations. The package dimensions support automated pick-and-place assembly while maintaining mechanical stability during reflow soldering.
The component ships in tape and reel packaging, facilitating high-volume production environments and compatibility with standard SMT equipment. With a Moisture Sensitivity Level of 1, the capacitor requires no special dry-packing or baking procedures prior to reflow, simplifying inventory management and reducing production overhead. This characteristic is particularly relevant for manufacturers operating lean supply chains or managing mixed component batches.
KEMET's ceramic capacitor portfolio is known for consistent electrical characteristics and process control, and the C1812X221JGGACTU reflects that manufacturing discipline. The part is suited for decoupling, filtering, and energy storage functions in power supplies, signal conditioning circuits, and digital logic boards. Designers working with analog front-ends, DC-DC converters, or embedded systems can leverage the 1812 footprint when board real estate permits and when the capacitance-voltage product aligns with circuit requirements.
The REACH Unaffected status indicates that the component does not contain Substances of Very High Concern above threshold levels, supporting regulatory compliance in European markets. The ECCN classification of EAR99 and HTSUS code 8532.24.0020 streamline export documentation and customs clearance for international supply chains. These attributes are particularly relevant for OEMs and contract manufacturers serving global markets or managing multi-region fulfillment.
From a procurement perspective, the availability of new original stock supports prototype builds, pilot production, and design-in decisions where component traceability and authenticity are quality assurance priorities. The tape and reel format aligns with Just-In-Time inventory strategies and minimizes handling risk during kitting and line-side staging.
Replacement Planning for KEMET C1812X221JGGACTU Ceramic Capacitor
Finding an equivalent to KEMET C1812X221JGGACTU is not just a matter of matching “220 pF” and “1812.” Ceramic capacitor replacement decisions depend on capacitance tolerance, dielectric behavior, voltage rating, DC-bias effects, termination style, soldering profile, package fit, lifecycle status, and regulatory compliance.
Potential replacement or alternative part numbers to evaluate include:
-
C1812C221JGGACTUfrom KEMET
C1812C221JGGACTU
KEMET
CAP CER 220PF 2KV NP0 1812
90535
- C4532X7R3D221K130KA from TDK
- GRM43DR72J221KW01L from Murata
- VJ1812Y221JXGAT5Z from Vishay
- 1812GC221JAT1A from KYOCERA AVX
These parts should be treated as candidate alternatives for a KEMET C1812X221JGGACTU replacement, not automatic drop-in substitutes. The final choice depends on the original circuit function: RF coupling, filtering, snubbing, high-voltage biasing, timing, impedance shaping, or general bypassing.
What KEMET C1812X221JGGACTU Contributes to the Circuit
KEMET C1812X221JGGACTU is a surface-mount ceramic capacitor supplied in Tape & Reel packaging. Based on the part number and supplied product record, it is an 1812-size MLCC with a nominal capacitance of 220 pF and J tolerance, typically interpreted as ±5%. It is RoHS3 compliant, REACH unaffected, active, and MSL 1, which supports standard SMT assembly without special moisture handling.
Key replacement-related characteristics:
| Parameter | KEMET C1812X221JGGACTU Evaluation Point | Replacement Impact |
|---|---|---|
| Manufacturer | KEMET | Same-brand replacements may reduce qualification effort |
| Package size | 1812 SMD | Candidate must match land pattern, height limits, and solder fillet geometry |
| Capacitance | 220 pF | Must be matched closely in frequency-sensitive, timing, and filter circuits |
| Tolerance | J, typically ±5% | Wider tolerance alternatives may shift cutoff frequency, impedance, or resonance |
| Capacitor type | Ceramic MLCC | Replacement should consider dielectric class, aging, DC bias, and temperature behavior |
| Packaging | Tape & Reel | Suitable for automated assembly; alternatives should support production packaging |
| Product status | Active | Reduces lifecycle risk compared with obsolete substitutions |
| Compliance | RoHS3, REACH unaffected | Replacement should meet the same compliance requirements |
| MSL | Level 1 | Simplifies storage and reflow handling |
| ECCN | EAR99 | Export classification should be checked if replacing in controlled systems |
The 1812 package is larger than common 0603, 0805, or 1206 capacitors, so the original part may have been selected for voltage capability, mechanical robustness, lower ESR/ESL behavior in a given layout, or thermal and surge margin. A smaller package should not be substituted unless voltage stress, power dissipation, creepage/clearance, and solder-joint reliability are reviewed.
Typical application scenarios include EMI filtering, high-frequency coupling, resonant networks, high-voltage low-capacitance filtering, signal conditioning, power supply noise suppression, and impedance compensation. In these applications, the replacement part must preserve not only capacitance but also dielectric stability and voltage derating behavior.
Candidate Equivalent and Alternative Parts for KEMET C1812X221JGGACTU
The table below compares practical replacement candidates. Some alternatives may match capacitance and footprint but differ in dielectric, tolerance, voltage rating, or availability. Datasheet confirmation is required before release to production.
| Manufacturer | Part Number | Key Specifications | Product Features | Typical Applications | Why It Can Replace the Original Part | Main Differences or Limitations | Recommended Usage |
|---|---|---|---|---|---|---|---|
| KEMET |
C1812C221JGGACTU
KEMET
CAP CER 220PF 2KV NP0 1812
90535
| 1812 MLCC, 220 pF, J tolerance, ceramic capacitor | Same manufacturer, same package family, similar capacitance code and tolerance | Filtering, coupling, high-voltage ceramic capacitor positions, impedance shaping | Closest same-brand candidate when the original C1812X221JGGACTU is unavailable | Dielectric code differs from the original part number; electrical behavior must be checked against the original datasheet | First candidate when minimizing supplier and qualification changes |
| TDK | C4532X7R3D221K130KA | 1812 metric-equivalent MLCC, 220 pF, X7R dielectric, high-voltage class, ±10% typical tolerance | Strong high-voltage MLCC portfolio, stable supply options, suitable for automated assembly | High-voltage filtering, DC blocking, snubber support, industrial electronics | Similar package size and capacitance; useful where X7R dielectric behavior is acceptable | Tolerance may be wider than J ±5%; X7R capacitance changes with temperature and DC bias | Suitable where capacitance shift is acceptable and voltage margin is the main concern |
| Murata | GRM43DR72J221KW01L | 1812 MLCC, 220 pF, X7R dielectric, ±10% tolerance, 630 V-class family | Broad availability, mature GRM series, production-friendly packaging | General filtering, coupling, decoupling in moderate-voltage circuits | Same 1812 footprint and same nominal capacitance | Voltage rating may be lower than some high-voltage KEMET configurations; tolerance differs from ±5% | Good alternative when the circuit operating voltage is comfortably below the Murata rating |
| Vishay | VJ1812Y221JXGAT5Z | 1812 MLCC, 220 pF, J tolerance, ceramic dielectric family | Vishay VJ commercial MLCC platform, footprint-compatible | Signal filtering, RF-related capacitance positions, timing and compensation networks | Same capacitance, same nominal tolerance class, same 1812 size | Dielectric and voltage code must be verified; may not match original voltage derating behavior | Suitable when tolerance matching is more relevant than dielectric family continuity |
| KYOCERA AVX | 1812GC221JAT1A | 1812 ceramic capacitor, 220 pF, J tolerance, high-voltage MLCC family | Established AVX high-voltage ceramic capacitor series, SMT-compatible | High-voltage filters, coupling paths, transient-related networks, industrial controls | Similar capacitance, tolerance, and package class; practical cross-source option | Height, voltage rating, and dielectric characteristics must be verified against layout and stress conditions | Strong candidate where voltage capability and 1812 footprint must be preserved |
For a close KEMET C1812X221JGGACTU equivalent,
C1812C221JGGACTU
should generally be evaluated first because it stays within the KEMET MLCC naming structure and package family. If supply continuity or pricing requires a second source, TDK C4532X7R3D221K130KA and KYOCERA AVX 1812GC221JAT1A are often more relevant for higher-voltage ceramic capacitor positions. Murata GRM43DR72J221KW01L can be attractive for broad availability, but its voltage rating must be checked against the original operating stress. Vishay VJ1812Y221JXGAT5Z is useful when capacitance tolerance and 1812 mechanical compatibility are the main constraints.
C1812C221JGGACTU
KEMET
CAP CER 220PF 2KV NP0 1812
90535
Engineering Trade-Offs When Comparing KEMET C1812X221JGGACTU Replacement Options
Replacement selection should follow the function of the capacitor in the circuit. A 220 pF MLCC used in a precision filter may require tighter capacitance stability, while the same value used for high-voltage noise suppression may prioritize voltage rating, creepage, and dielectric robustness.
| Decision Factor | C1812C221JGGACTU | C4532X7R3D221K130KA | GRM43DR72J221KW01L | VJ1812Y221JXGAT5Z | 1812GC221JAT1A |
|---|---|---|---|---|---|
| Electrical compatibility | Likely closest same-brand electrical match, pending dielectric verification | Good capacitance match; tolerance and X7R behavior may shift circuit response | Good nominal capacitance match; check voltage margin | Good capacitance and tolerance match; dielectric must be confirmed | Good capacitance and tolerance match for high-voltage MLCC use |
| Mechanical compatibility | Same 1812 package family | 1812-compatible body size | 1812-compatible body size | 1812-compatible body size | 1812-compatible body size |
| Performance behavior | Best candidate if dielectric and voltage code align with original | Better for applications tolerant of X7R capacitance variation | Suitable for non-precision filtering and coupling | Better where ±5% capacitance is desired | Suitable where high-voltage ceramic behavior is required |
| Reliability considerations | Same manufacturer may simplify historical reliability comparison | TDK high-voltage MLCC family supports robust sourcing | Murata GRM series has broad production use | Vishay VJ series provides another qualified source path | AVX high-voltage MLCC family is relevant for stressed applications |
| Package availability | Tape & Reel options likely available | Production packaging commonly available | Strong distribution availability | Tape-based SMT supply generally available | Common SMT packaging options |
| Cost considerations | May be higher or lower depending on KEMET availability | Often competitive for high-volume sourcing | Frequently competitive due to broad availability | Useful for multi-source pricing comparison | May carry premium if high-voltage rating is needed |
| Best-fit application | Lowest-risk same-brand substitution | High-voltage filtering where ±10% tolerance is acceptable | Moderate-voltage filtering and coupling | Tolerance-sensitive 220 pF replacement positions | High-voltage or industrial capacitor replacement |
| Advantages | Same brand, similar naming structure, easier documentation trail | Strong voltage-focused alternative | Broad market availability | J tolerance supports closer capacitance matching | Good alternative for voltage-stressed designs |
| Limitations | Must verify dielectric difference from C1812X221JGGACTU | Wider tolerance may affect tuned or precision circuits | Voltage rating may not be sufficient for all original designs | Voltage and dielectric code require confirmation | Datasheet dimensions and voltage class must be checked before approval |
A practical replacement workflow is to start with package and capacitance, then confirm tolerance, dielectric class, voltage rating, insulation resistance, dissipation factor, temperature coefficient, thickness, termination finish, and reflow compatibility. For RF or resonant circuits, impedance versus frequency should be checked rather than relying only on capacitance value. For high-voltage circuits, derating and board spacing should be reviewed before selecting a lower-voltage alternative.
For quotations and availability on KEMET C1812X221JGGACTU replacement parts, equivalent ceramic capacitors, and alternative MLCC part numbers, obtain pricing through IC-Components.com or email Info@IC-Components.com.
