The Knowles Syfer 2220Y2500474MXT is a surface-mount multilayer ceramic capacitor offering 0.47 µF capacitance at 250V with X7R dielectric characteristics. This FlexiCap™ series component combines moderate voltage rating with soft termination technology, making it suitable for applications where mechanical stress mitigation is a design consideration.
With a capacitance tolerance of ±20% and an operating temperature range from -55°C to 125°C, the 2220Y2500474MXT maintains stable electrical performance across industrial temperature conditions. The X7R temperature coefficient ensures the capacitor exhibits minimal capacitance shift over temperature, typically ±15% across its full operating range, which supports reliable circuit behavior in power filtering, decoupling, and energy storage applications.
The 2220 package size (5750 metric, measuring 5.70mm × 5.00mm with 2.50mm maximum thickness) provides a practical balance between capacitance density and board footprint for designs requiring 0.47 microfarad ceramic capacitors at 250V ratings. This MLCC form factor enables automated surface mount assembly while the soft termination feature reduces susceptibility to board flex-induced cracking, addressing reliability concerns in applications subject to mechanical strain during assembly or operation.
Specified for boardflex-sensitive applications, this ceramic capacitor addresses scenarios where standard rigid terminations might compromise solder joint integrity or component reliability. The soft termination construction absorbs mechanical stress from PCB bending, thermal cycling, or vibration exposure, extending operational lifetime in demanding environments.
The 2220Y2500474MXT meets RoHS3 compliance requirements and carries Moisture Sensitivity Level 1 classification, allowing unlimited floor life exposure without special handling precautions before reflow soldering. This MLCC is supplied in tape and reel packaging for high-volume manufacturing integration.
As part of the FlexiCap series, this 250V X7R capacitor serves power supply filtering, DC link, and voltage smoothing circuits where both voltage rating and mechanical robustness factor into component selection. Alternative components with similar electrical specifications include
C5750X7R2E474M230KA
and
C5750X7R2E474M230KA
TDK Corporation
CAP CER 0.47UF 250V X7R 2220
17900
C5750X7T2J474M250KE
, though specific mechanical and termination characteristics may differ.
C5750X7T2J474M250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
7078
2220Y2500474MXT (1)
Replacement Risk Around Knowles Syfer 2220Y2500474MXT 0.47 µF 250 V X7R MLCC
Replacing the Knowles Syfer 2220Y2500474MXT is not only a matter of matching capacitance and voltage. This part is a 2220-size surface-mount ceramic capacitor designed with FlexiCap™ soft termination, making it suitable for boardflex-sensitive assemblies. When supply constraints, lifecycle planning, cost pressure, or approved-vendor-list expansion require a substitute, the replacement must be checked for electrical behavior, package fit, voltage margin, dielectric stability, termination structure, and soldering compatibility.
Potential equivalent or alternative part numbers for 2220Y2500474MXT include:
| Manufacturer | Candidate Part Number | General Replacement Position |
|---|---|---|
| TDK |
| Closest electrical match: 0.47 µF, 250 V, X7R, 2220 / 5750 metric |
| TDK |
| Higher-voltage alternative: 0.47 µF, 630 V, X7T, 2220 / 5750 metric |
| TDK |
| Higher-voltage, tighter-tolerance alternative: 0.47 µF, 630 V, X7T, 2220 / 5750 metric |
For a Knowles Syfer 2220Y2500474MXT replacement, the closest candidate is usually the TDK
C5750X7R2E474M230KA
because it aligns with the original 250 V rating, X7R dielectric class, capacitance value, and 5750 metric footprint. The two TDK 630 V X7T options may be useful where voltage derating or surge margin is preferred, but their dielectric behavior and tolerance differences should be evaluated against circuit requirements.
C5750X7R2E474M230KA
TDK Corporation
CAP CER 0.47UF 250V X7R 2220
17900
What the Knowles Syfer 2220Y2500474MXT FlexiCap™ MLCC Requires From a Substitute
The Knowles Syfer 2220Y2500474MXT is a multilayer ceramic capacitor specified as 0.47 µF, ±20%, 250 V, X7R dielectric, in a 2220 imperial package equivalent to 5750 metric. It operates across -55°C to +125°C and uses surface-mount MLCC construction. The part is supplied in Tape & Reel packaging and is RoHS3 compliant, MSL 1, and REACH unaffected.
| Parameter | Knowles Syfer 2220Y2500474MXT | Replacement Impact |
|---|---|---|
| Capacitance | 0.47 µF | Replacement should maintain the same nominal capacitance unless the circuit can tolerate impedance or timing changes |
| Tolerance | ±20% | A tighter tolerance may be acceptable; wider tolerance generally requires circuit review |
| Rated Voltage | 250 V | Substitute should meet or exceed the working voltage plus derating requirements |
| Dielectric | X7R | Determines capacitance change over temperature and DC bias behavior |
| Package | 2220 / 5750 metric | Must match PCB land pattern, solder fillet geometry, and placement constraints |
| Size | 5.70 mm × 5.00 mm | Alternatives in the same case size are mechanically easier to qualify |
| Thickness | Max. 2.50 mm | Replacement height must fit enclosure, coating, and spacing limits |
| Termination Feature | FlexiCap™ soft termination | Helps reduce cracking risk under PCB flexure or thermal-mechanical stress |
| Application Note | Boardflex-sensitive use | Replacement should be reviewed for termination robustness, especially in large-case MLCC applications |
The FlexiCap™ feature is a major factor in replacement selection. Large MLCCs such as 2220 capacitors are more exposed to mechanical stress than smaller packages. If the capacitor is placed near board edges, connectors, screw mounts, depanelization areas, or heavy components, a substitute without comparable flexible termination may increase the risk of flex cracking.
Electrically, the 250 V rating makes the 2220Y2500474MXT suitable for DC-link support, high-voltage decoupling, filtering, snubber-related networks, industrial control boards, power supplies, and circuits where stable capacitance across temperature is required. The X7R dielectric provides practical capacitance density, but capacitance loss under DC bias should still be considered. A replacement part should therefore be evaluated at the real operating voltage, not only at the nominal datasheet value.
Candidate Replacements for Knowles Syfer 2220Y2500474MXT: TDK C5750X7R2E474M230KA, C5750X7T2J474M250KE, and C5750X7T2J474K250KE
| Manufacturer | Part Number | Key Specifications | Product Features | Typical Applications | Why It Can Replace the Original Part | Main Differences or Limitations | Recommended Usage |
|---|---|---|---|---|---|---|---|
| Knowles Syfer | 2220Y2500474MXT | 0.47 µF, ±20%, 250 V, X7R, -55°C to +125°C, 2220 / 5750 metric | FlexiCap™ soft termination, boardflex-sensitive design, Tape & Reel, RoHS3 | High-voltage decoupling, power supply filtering, industrial electronics, mechanically stressed PCB areas | Original reference part | Baseline device; availability or sourcing constraints may drive substitution | Use as the benchmark for electrical, mechanical, and reliability comparison |
| TDK |
| 0.47 µF, ±20%, 250 V, X7R, 5750 metric, approx. 2.30 mm thickness class | Same capacitance, same voltage class, same dielectric family, same footprint class | High-voltage MLCC decoupling, filtering, power conversion boards, general industrial circuits | Closely matches the original value, voltage rating, dielectric type, and 2220 / 5750 mounting geometry | Termination construction and board-flex performance should be verified against the original FlexiCap™ requirement | Best first-choice electrical substitute where a 250 V X7R 0.47 µF 2220 MLCC is required |
| TDK |
| 0.47 µF, ±20%, 630 V, X7T, 5750 metric, approx. 2.50 mm thickness class | Higher voltage rating, same nominal capacitance, same case-size family | Higher-voltage filtering, snubber-adjacent circuits, power electronics, circuits needing additional voltage derating | Can replace the original where increased voltage margin is beneficial and X7T capacitance behavior is acceptable | X7T dielectric is not identical to X7R; capacitance variation over temperature may differ; higher voltage part may have different impedance and DC-bias profile | Suitable when voltage headroom is more valuable than exact X7R temperature behavior |
| TDK |
| 0.47 µF, ±10%, 630 V, X7T, 5750 metric, approx. 2.50 mm thickness class | Higher voltage rating with tighter capacitance tolerance than the original | Precision-tolerant filtering, higher-voltage power rails, applications where capacitance spread should be reduced | Same nominal capacitance and footprint family, with voltage rating above the original 250 V device | X7T dielectric differs from X7R; ±10% tolerance may affect circuits originally designed around broad MLCC tolerance but is usually acceptable electrically | Use when tighter initial capacitance tolerance and 630 V rating are preferred, after confirming dielectric behavior |
Among the listed substitutes, TDK
C5750X7R2E474M230KA
is the most direct equivalent for the Knowles Syfer 2220Y2500474MXT because it preserves the major electrical identity of the original: 0.47 µF, 250 V, X7R, and 5750 metric size. It should still be checked for termination type, flex performance, and qualification status before use in mechanically stressed locations.
C5750X7R2E474M230KA
TDK Corporation
CAP CER 0.47UF 250V X7R 2220
17900
TDK
C5750X7T2J474M250KE
and TDK
C5750X7T2J474M250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
7078
C5750X7T2J474K250KE
are better viewed as engineering alternatives rather than drop-in equivalents. Their 630 V rating provides additional voltage margin, but the X7T dielectric class is different from X7R. In decoupling or filtering positions where capacitance tolerance and dielectric shift are not tightly constrained, these parts may be acceptable. In timing, resonant, compensation, or impedance-sensitive circuits, validation is recommended.
C5750X7T2J474K250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
12804
Engineering Trade-Offs When Comparing 2220Y2500474MXT Replacement Options
| Evaluation Factor | TDK C5750X7R2E474M230KA | TDK C5750X7T2J474M250KE | TDK C5750X7T2J474K250KE |
|---|---|---|---|
| Electrical Compatibility | Strong match: same 0.47 µF, ±20%, 250 V, X7R class | Good for capacitance and voltage margin, but dielectric changes from X7R to X7T | Good for capacitance and voltage margin, with tighter ±10% tolerance, but dielectric changes from X7R to X7T |
| Voltage Margin | Same as original 250 V rating; follows original derating assumptions | 630 V rating gives wider voltage headroom | 630 V rating gives wider voltage headroom |
| Dielectric Behavior | Closest to original because it remains X7R | X7T behavior may allow different capacitance shift over temperature | X7T behavior may allow different capacitance shift over temperature |
| Mechanical Compatibility | Same 5750 metric footprint; slightly thinner class may help height clearance | Same 5750 metric footprint; thickness class close to original maximum | Same 5750 metric footprint; thickness class close to original maximum |
| Board-Flex Consideration | Must be checked against FlexiCap™ soft-termination requirement | Must be checked carefully if used in boardflex-sensitive locations | Must be checked carefully if used in boardflex-sensitive locations |
| Performance Fit | Best for circuits expecting a 250 V X7R MLCC response | Better for higher-voltage stress; less direct for exact X7R behavior | Better for tighter initial capacitance and higher voltage; less direct for exact X7R behavior |
| Reliability Consideration | Suitable if termination, qualification, and voltage derating meet the original design intent | Higher voltage rating may reduce electrical stress, but mechanical and dielectric differences remain | Higher voltage and tighter tolerance may help some designs, but mechanical and dielectric differences remain |
| Package Availability | Common 2220 / 5750 MLCC format; confirm reel quantity and suffix | Common 2220 / 5750 high-voltage MLCC format; confirm availability | Common 2220 / 5750 high-voltage MLCC format; confirm availability |
| Cost Consideration | Usually the most comparable cost class because voltage rating matches original | May cost more due to 630 V rating | May cost more due to 630 V rating and tighter tolerance |
| Best-Fit Scenario | Direct replacement for 2220Y2500474MXT when 250 V X7R behavior is required | Replacement where higher voltage derating is desired and X7T is acceptable | Replacement where higher voltage rating and tighter tolerance are preferred |
| Main Limitation | Does not automatically duplicate Knowles Syfer FlexiCap™ mechanical behavior | Not a like-for-like dielectric replacement | Not a like-for-like dielectric replacement; tolerance differs from original |
For most replacement workflows, the decision sequence should begin with the TDK
C5750X7R2E474M230KA
because it is the closest electrical and package-level match to the Knowles Syfer 2220Y2500474MXT. If the application mainly uses the capacitor for bulk decoupling, EMI-related filtering, or high-voltage rail stabilization, this candidate is likely to require the least redesign effort.
C5750X7R2E474M230KA
TDK Corporation
CAP CER 0.47UF 250V X7R 2220
17900
The TDK
C5750X7T2J474M250KE
and TDK
C5750X7T2J474M250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
7078
C5750X7T2J474K250KE
should be considered when the design benefits from a 630 V rating. They may be attractive in power supplies, industrial boards, or circuits with transient exposure. However, because X7T is not the same dielectric category as X7R, capacitance versus temperature, capacitance under DC bias, and impedance across frequency should be reviewed against the actual circuit function.
C5750X7T2J474K250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
12804
If the capacitor is used in a boardflex-sensitive area, mechanical qualification carries the same weight as capacitance and voltage matching. The original Knowles Syfer 2220Y2500474MXT uses FlexiCap™ soft termination, so any alternative should be checked for flex-crack resistance, termination structure, solder-joint reliability, and placement risk on the PCB.
For quotations and sourcing support for 2220Y2500474MXT replacement parts, including TDK
C5750X7R2E474M230KA
,
C5750X7R2E474M230KA
TDK Corporation
CAP CER 0.47UF 250V X7R 2220
17900
C5750X7T2J474M250KE
, and
C5750X7T2J474M250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
7078
C5750X7T2J474K250KE
, obtain pricing through IC-Components.com or email Info@IC-Components.com.
C5750X7T2J474K250KE
TDK Corporation
CAP CER 0.47UF 630V X7T 2220
12804




