SR205C473MAT Equivalent & Substitute Parts

Part Overview

The SR205C473MAT is a 0.047 µF ±20% 50V X7R ceramic capacitor in radial through-hole configuration, manufactured by KYOCERA AVX under the SkyCap® SR series. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are necessary when the original part becomes unavailable, when design requirements demand improved tolerance specifications, or when higher voltage ratings are required for enhanced circuit reliability.

Key Parameters

Parameter	SR205C473MAT
Capacitance	0.047 µF
Tolerance	±20%
Voltage Rating	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.100" (2.54mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SR205C473MAT is determined by the following mandatory parameters:

Capacitance Value: Must be 0.047 µF (exact match required)
Temperature Coefficient: Must be X7R (ensures stable capacitance across operating temperature range)
Mounting Type: Must be Through Hole with Radial configuration
Operating Temperature Range: Must support -55°C to 125°C minimum
RoHS Compliance: Must be ROHS3 compliant

Substitute parts are grouped into two categories:

Category 1 - Direct Equivalents (Same Voltage Rating - 50V):

SR205C473KAR (KYOCERA AVX) - Improved tolerance (±10%)
FK18X7R1H473KN020 (TDK Corporation) - Not For New Designs status
K473K15X7RF53L2 (Vishay Beyschlag/Draloric/BC Components) - Active status

Category 2 - Upgraded Substitutes (Higher Voltage Rating - 100V):

SR201C473KAA (KYOCERA AVX) - Improved tolerance (±10%)
SR201C473KAR (KYOCERA AVX) - Improved tolerance (±10%)
K473K20X7RH53L2 (Vishay Beyschlag/Draloric/BC Components) - Improved tolerance (±10%)
RDER72A473K1P1H03B (Murata Electronics) - Improved tolerance (±10%)
RDER72A473K1S1H03A (Murata Electronics) - Improved tolerance (±10%)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Operating Temperature	Mounting Type	Lead Spacing	Product Status	RoHS Status
SR205C473MAT	KYOCERA AVX	0.047 µF	±20%	50V	X7R	-55°C to 125°C	Through Hole Radial	0.100" (2.54mm)	Active	ROHS3
SR205C473KAR	KYOCERA AVX	0.047 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole Radial	0.100" (2.54mm)	Active	ROHS3
SR201C473KAA	KYOCERA AVX	0.047 µF	±10%	100V	X7R	-55°C to 125°C	Through Hole Radial	0.100" (2.54mm)	Active	ROHS3
SR201C473KAR	KYOCERA AVX	0.047 µF	±10%	100V	X7R	-55°C to 125°C	Through Hole Radial	0.100" (2.54mm)	Active	ROHS3
FK18X7R1H473KN020	TDK Corporation	0.047 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole Radial	0.098" (2.50mm)	Not For New Designs	ROHS3
K473K15X7RF53L2	Vishay Beyschlag/Draloric/BC Components	0.047 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole Radial	0.098" (2.50mm)	Active	ROHS3
K473K20X7RH53L2	Vishay Beyschlag/Draloric/BC Components	0.047 µF	±10%	100V	X7R	-55°C to 125°C	Through Hole Radial	0.098" (2.50mm)	Active	ROHS3
RDER72A473K1P1H03B	Murata Electronics	0.047 µF	±10%	100V	X7R	-55°C to 125°C	Through Hole Radial	0.098" (2.50mm)	Active	ROHS3
RDER72A473K1S1H03A	Murata Electronics	0.047 µF	±10%	100V	X7R	-55°C to 125°C	Through Hole Radial	0.098" (2.50mm)	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Same Voltage - 50V):

SR205C473KAR is the primary direct replacement from KYOCERA AVX. It maintains identical voltage rating, lead spacing, and physical dimensions while providing improved tolerance specification (±10% versus ±20%). This part carries Active product status and full ROHS3 compliance.

K473K15X7RF53L2 from Vishay Beyschlag/Draloric/BC Components is functionally equivalent with Active status and ROHS3 compliance. Lead spacing differs at 0.098" (2.50mm) versus the original 0.100" (2.54mm), requiring PCB layout verification.

FK18X7R1H473KN020 from TDK Corporation meets all electrical specifications but carries "Not For New Designs" product status, limiting its use to legacy system maintenance only.

For Upgraded Substitution (Higher Voltage - 100V):

SR201C473KAA and SR201C473KAR from KYOCERA AVX provide 100V voltage rating with ±10% tolerance and identical lead spacing (0.100"/2.54mm). Both maintain Active status and ROHS3 compliance. These parts are suitable for applications requiring enhanced voltage margin.

K473K20X7RH53L2 from Vishay Beyschlag/Draloric/BC Components offers 100V rating with Active status and ROHS3 compliance. Lead spacing is 0.098" (2.50mm), requiring PCB layout verification.

RDER72A473K1P1H03B and RDER72A473K1S1H03A from Murata Electronics provide 100V rating with Active status and ROHS3 compliance. These parts differ in packaging (Bulk versus Cut Tape) and lead style (Formed Leads). Lead spacing is 0.098" (2.50mm).

Frequently Asked Questions (FAQ)

Q: Can SR205C473KAR be used as a direct replacement for SR205C473MAT?

A: Yes. SR205C473KAR is a direct replacement maintaining identical capacitance (0.047 µF), voltage rating (50V), temperature coefficient (X7R), lead spacing (0.100"/2.54mm), and through-hole radial configuration. The improved tolerance (±10% versus ±20%) provides better circuit performance without requiring design changes.

Q: What is the difference between 50V and 100V rated substitutes?

A: The 100V rated parts (SR201C473KAA, SR201C473KAR, K473K20X7RH53L2, RDER72A473K1P1H03B, RDER72A473K1S1H03A) provide higher voltage margin and can be used in applications where the original 50V rating is insufficient. All maintain the same 0.047 µF capacitance and X7R temperature coefficient. These are electrically compatible with circuits designed for 50V operation.

Q: Does lead spacing affect PCB compatibility?

A: Yes. The original SR205C473MAT has 0.100" (2.54mm) lead spacing. Substitute parts with 0.098" (2.50mm) lead spacing (FK18X7R1H473KN020, K473K15X7RF53L2, K473K20X7RH53L2, RDER72A473K1P1H03B, RDER72A473K1S1H03A) require PCB layout verification to confirm hole spacing compatibility. KYOCERA AVX substitutes maintain the original 0.100" (2.54mm) spacing.

Q: Why is FK18X7R1H473KN020 marked "Not For New Designs"?

A: "Not For New Designs" product status indicates the manufacturer has discontinued active development and recommends alternative parts for new applications. This part remains available for legacy system support but should not be selected for new circuit designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original SR205C473MAT specification.

Q: What tolerance improvement do substitute parts provide?

A: The original SR205C473MAT specifies ±20% tolerance. All substitute parts listed provide ±10% tolerance, representing a 50% reduction in capacitance variation and improved circuit performance consistency.

Q: Can I use Murata RDER72A series parts as substitutes?

A: Yes. RDER72A473K1P1H03B (Bulk packaging) and RDER72A473K1S1H03A (Cut Tape packaging) are electrically equivalent with 100V rating and ±10% tolerance. Lead spacing is 0.098" (2.50mm) and lead style is Formed Leads, requiring PCB layout verification.

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