1206Y2000473MXT Equivalent & Substitute Parts

Part Overview

The 1206Y2000473MXT is a 0.047 µF ceramic capacitor rated at 200V with X7R temperature coefficient, manufactured by Knowles Syfer in 1206 (3216 Metric) surface mount package. This component is classified as Active and features soft termination technology suitable for Boardflex Sensitive applications. Equivalent and substitute parts are identified based on matching or exceeding electrical specifications while maintaining mechanical compatibility with the 1206 package footprint.

Key Parameters

Parameter	Value
Capacitance	0.047 µF
Voltage Rating	200V
Tolerance	±20%
Temperature Coefficient	X7R
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount, MLCC
Operating Temperature Range	-55°C ~ 125°C
Features	Soft Termination
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Parameters: Capacitance value (0.047 µF), voltage rating (equal to or greater than 200V), and temperature coefficient (X7R or equivalent).

Mechanical Parameters: Package type (1206 / 3216 Metric), surface mount configuration, and soft termination feature.

Compliance Parameters: ROHS3 compliance, MSL rating of 1, and REACH unaffected status.

Substitute parts are grouped into three categories:

Direct Equivalents (Same Voltage, Improved Tolerance): Parts with 200V rating and ±10% tolerance, providing tighter capacitance control while maintaining electrical compatibility.
Upgraded Voltage Rating: Parts with 500V or 630V ratings, suitable for applications requiring higher voltage margin or derating considerations.
Alternative Manufacturers: Parts from KEMET and TDK Corporation meeting identical or superior electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Coeff	Package	Product Status	Inventory
1206Y2000473MXT	Knowles Syfer	0.047 µF	200V	±20%	X7R	1206	Active	1112 Pcs
1206Y2000473KXT	Knowles Syfer	0.047 µF	200V	±10%	X7R	1206	Active	2925 Pcs
1206Y5000473KJT	Knowles Syfer	0.047 µF	500V	±10%	X7R	1206	Active	751 Pcs
C1206X473K2RAC7800	KEMET	0.047 µF	200V	±10%	X7R	1206	Active	2891 Pcs
C3216X7T2J473K160AE	TDK Corporation	0.047 µF	630V	±10%	X7T	1206	Active	4104 Pcs
C3216X7T2J473M160AE	TDK Corporation	0.047 µF	630V	±20%	X7T	1206	Not For New Designs	12333 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Same Tolerance Class): The 1206Y2000473MXT is an Active product with full design support. No substitution is required for new designs unless inventory constraints apply.

For Improved Tolerance (200V, ±10%): The 1206Y2000473KXT (Knowles Syfer) and C1206X473K2RAC7800 (KEMET) provide tighter capacitance tolerance (±10% versus ±20%) while maintaining 200V rating and 1206 package compatibility. Both are Active products with ROHS3 compliance and unlimited MSL rating. These are suitable for applications requiring improved capacitance accuracy.

For Elevated Voltage Applications (500V or 630V): The 1206Y5000473KJT (500V, ±10%) and C3216X7T2J473K160AE (630V, ±10%) provide higher voltage margins for derating or higher-voltage circuit requirements. Both maintain 1206 package footprint and soft termination features. The TDK part uses X7T temperature coefficient instead of X7R, which exhibits tighter capacitance stability over temperature but with slightly different characteristics.

For Legacy or High-Volume Applications: The C3216X7T2J473M160AE (TDK, 630V, ±20%) is marked "Not For New Designs" but remains in stock with high inventory (12333 Pcs). This part is suitable only for sustaining production of existing designs where qualification has been completed.

Frequently Asked Questions (FAQ)

Q: Can I use a 500V or 630V rated capacitor in place of the 200V 1206Y2000473MXT?

A: Yes. Higher voltage-rated capacitors are electrically compatible in 200V applications. The 1206Y5000473KJT (500V) and C3216X7T2J473K160AE (630V) maintain identical capacitance (0.047 µF), package footprint (1206), and soft termination features. Higher voltage ratings provide additional safety margin and derating capability.

Q: What is the difference between X7R and X7T temperature coefficients?

A: Both X7R and X7T are temperature-stable dielectric materials suitable for -55°C to 125°C operation. X7R exhibits ±15% capacitance change over temperature, while X7T exhibits ±22% change. For the 0.047 µF value, this difference is negligible in most applications. The TDK parts (C3216X7T2J473K160AE and C3216X7T2J473M160AE) use X7T; all Knowles Syfer and KEMET parts use X7R.

Q: Are all substitute parts mechanically compatible with the 1206 footprint?

A: Yes. All listed substitute parts use the 1206 (3216 Metric) package designation. However, note that the KEMET part (C1206X473K2RAC7800) has slightly different physical dimensions (0.130" L x 0.063" W, 0.043" thickness) compared to the Knowles Syfer original (0.126" L x 0.063" W, 0.063" thickness). Verify PCB layout clearances if space is constrained.

Q: Which substitute part should I select for new designs?

A: For new designs, select from Active products: 1206Y2000473KXT, 1206Y5000473KJT, C1206X473K2RAC7800, or C3216X7T2J473K160AE. Avoid C3216X7T2J473M160AE, which is marked "Not For New Designs." The choice depends on voltage requirement (200V, 500V, or 630V) and tolerance preference (±10% or ±20%).

Q: What is the significance of the ±10% versus ±20% tolerance difference?

A: Tolerance specifies the allowable deviation of actual capacitance from the nominal 0.047 µF value. ±20% allows 0.0376 µF to 0.0564 µF; ±10% allows 0.0423 µF to 0.0517 µF. Applications requiring tighter capacitance control (filtering, timing circuits) benefit from ±10% parts. General-purpose applications tolerate ±20%.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH unaffected status, meeting current environmental and regulatory requirements.

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