SR201C473KAATR2 Equivalent & Substitute Parts

Part Overview

The SR201C473KAATR2 is a 0.047 µF ceramic capacitor rated at 100V with X7R temperature coefficient, manufactured by KYOCERA AVX in the SkyCap® SR series. This radial through-hole component is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently active and in production, with 1169 units available in stock.

Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility. Alternative sources from Murata Electronics, KEMET, and TDK Corporation provide functionally equivalent options with variations in packaging format, lead configuration, and physical dimensions.

Key Parameters

Parameter	Value
Capacitance	0.047 µF
Tolerance	±10%
Voltage Rating	100V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence in the following parameters:

Capacitance value: 0.047 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage rating: 100V (exact match required)
Temperature coefficient: X7R (exact match required)
Operating temperature range: -55°C to 125°C (exact match required)
Mounting type: Through Hole (exact match required)
Package type: Radial (exact match required)

Variations permitted in substitute parts include packaging format (Tape & Reel, Cut Tape, or Bulk), lead style (Straight or Formed Leads), lead spacing, and physical dimensions. These variations do not affect electrical performance but may impact assembly compatibility and board layout considerations.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Coeff	Lead Spacing	Lead Style	Packaging	Product Status
SR201C473KAATR2	KYOCERA AVX	0.047 µF	100V	±10%	X7R	0.100" (2.54mm)	Straight	Tape & Reel	Active
SR211C473KAR	KYOCERA AVX	0.047 µF	100V	±10%	X7R	0.200" (5.08mm)	Formed Leads - Kinked	Bulk	Active
SR201C473KARTR2	KYOCERA AVX	0.047 µF	100V	±10%	X7R	0.100" (2.54mm)	Straight	Cut Tape	Active
RDER72A473K1P1H03B	Murata Electronics	0.047 µF	100V	±10%	X7R	0.098" (2.50mm)	Formed Leads	Bulk	Active
RDER72A473K1S1H03A	Murata Electronics	0.047 µF	100V	±10%	X7R	0.098" (2.50mm)	Formed Leads	Cut Tape	Active
C320C473K1R5TA	KEMET	0.047 µF	100V	±10%	X7R	0.100" (2.54mm)	Straight	Bulk	Active
C322C473K1R5TA	KEMET	0.047 µF	100V	±10%	X7R	0.200" (5.08mm)	Formed Leads	Bulk	Active
C322C473K1R5TA7301	KEMET	0.047 µF	100V	±10%	X7R	0.200" (5.08mm)	Formed Leads	Cut Tape	Active
FK14X7R2A473KN020	TDK Corporation	0.047 µF	100V	±10%	X7R	0.098" (2.50mm)	Formed Leads	Bulk	Not For New Designs
FK16X7R2A473KN020	TDK Corporation	0.047 µF	100V	±10%	X7R	0.098" (2.50mm)	Formed Leads - Kinked	Bulk	Not For New Designs
FK24X7R2A473KN000	TDK Corporation	0.047 µF	100V	±10%	X7R	0.197" (5.00mm)	Formed Leads - Kinked	Bulk	Not For New Designs

Engineering Selection Recommendations

For new designs, select from parts with Active product status: SR211C473KAR, SR201C473KARTR2, RDER72A473K1P1H03B, RDER72A473K1S1H03A, C320C473K1R5TA, C322C473K1R5TA, or C322C473K1R5TA7301. All active parts are ROHS3 compliant and REACH unaffected.

For existing designs requiring direct replacement of SR201C473KAATR2, SR201C473KARTR2 provides identical electrical specifications and lead spacing (0.100" / 2.54mm) with the only difference being packaging format (Cut Tape instead of Tape & Reel).

Parts marked "Not For New Designs" (FK series from TDK Corporation) remain electrically equivalent but should not be selected for new product development. These parts are suitable only for legacy system maintenance or repair applications.

Lead spacing and lead style variations must be evaluated against specific PCB layout requirements. Parts with 0.098" (2.50mm) lead spacing differ from the original 0.100" (2.54mm) spacing and require board redesign verification.

Frequently Asked Questions (FAQ)

Q: Can I substitute SR201C473KAATR2 with SR211C473KAR?

A: Yes. Both parts are electrically identical with matching capacitance (0.047 µF), voltage rating (100V), tolerance (±10%), and temperature coefficient (X7R). The primary difference is lead spacing: SR211C473KAR uses 0.200" (5.08mm) spacing with kinked formed leads, compared to the original 0.100" (2.54mm) straight leads. Board layout compatibility must be verified before substitution.

Q: What is the difference between Tape & Reel, Cut Tape, and Bulk packaging?

A: Packaging format affects component delivery and handling but not electrical performance. Tape & Reel (TR) provides continuous tape for automated assembly. Cut Tape (CT) provides pre-cut sections. Bulk packaging supplies loose components. Selection depends on assembly equipment and production volume requirements.

Q: Are TDK FK series parts suitable for new designs?

A: No. FK14X7R2A473KN020, FK16X7R2A473KN020, and FK24X7R2A473KN000 are marked "Not For New Designs." These parts remain electrically equivalent but should be used only for maintenance of existing systems. New designs should use active parts from KYOCERA AVX, Murata Electronics, or KEMET.

Q: How do lead spacing variations affect PCB compatibility?

A: Lead spacing determines hole-to-hole distance on the PCB. The original SR201C473KAATR2 uses 0.100" (2.54mm) spacing. Murata RDE series and TDK FK series use 0.098" (2.50mm) spacing, while KYOCERA SR211 and KEMET C322 series use 0.200" (5.08mm) spacing. Substitution with different lead spacing requires PCB redesign or mechanical adaptation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of SR201C473KAATR2.

Q: What is the difference between Straight and Formed Leads?

A: Straight leads insert vertically into PCB holes. Formed leads are pre-bent for specific spacing and may be kinked for mechanical retention. Lead style affects insertion force, component retention during assembly, and PCB hole design. Verify assembly equipment compatibility before substituting between lead styles.

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