Equivalent & Substitute Parts for 08055C472KAJ2A

Part Overview

The 08055C472KAJ2A is a 4700 pF ±10% 50V X7R ceramic capacitor in 0805 (2012 Metric) surface mount package manufactured by KYOCERA AVX. This part is Active status and suitable for general purpose applications. Substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance, temperature coefficient) and mechanical compatibility (package size, mounting type, form factor). Direct substitutes maintain identical electrical parameters, while upgrade alternatives offer enhanced compliance or performance characteristics.

Key Parameters

Parameter	Value
Capacitance	4700 pF
Tolerance	±10%
Voltage - Rated	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.079" L x 0.049" W (2.01mm x 1.25mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic is based on the following criteria:

Direct Substitutes maintain all electrical parameters (4700 pF, ±10%, 50V, X7R) and mechanical compatibility (0805 package, surface mount). These parts are functionally interchangeable with the main part number.

Upgrade Substitutes offer one or more of the following enhancements while maintaining core electrical compatibility:

Improved RoHS compliance status (ROHS3 Compliant vs. RoHS non-compliant)
Enhanced REACH status (REACH Unaffected vs. REACH Affected)
Automotive-grade certifications (AEC-Q200)
Tighter tolerance (±5% vs. ±10%)
Higher voltage rating (100V or 250V vs. 50V)
Specialized features (soft termination, FLEXITERM® series)

All substitute parts share the same 0805 package footprint, surface mount mounting type, and operating temperature range (-55°C ~ 125°C).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temperature Coefficient	Package	RoHS Status	REACH Status	Packaging Type	Inventory (Pcs)
08055C472KAJ2A	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	RoHS non-compliant	REACH Affected	Bulk	988
LD055C472KAB2A	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	RoHS non-compliant	REACH Affected	Tape & Reel	2221
0805B472K500CT	Walsin Technology Corporation	4700 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	11692
0805PC472KAT1A	KYOCERA AVX	4700 pF	±10%	250V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	7217
KAF21BR71H472KT	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	6578
KAM21BR71H472KM	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	118263
KAM21BR71H472KT	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	74340
KGM21NR71H472JT	KYOCERA AVX	4700 pF	±5%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	15063
KGM21NR71H472KM	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	59647
KGM21NR71H472KT	KYOCERA AVX	4700 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	58052
KGM21NR72A472JT	KYOCERA AVX	4700 pF	±5%	100V	X7R	0805	ROHS3 Compliant	REACH Unaffected	Tape & Reel	43091

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Specifications):

LD055C472KAB2A from KYOCERA AVX is a direct substitute available in Tape & Reel packaging with higher inventory (2221 pcs). This part maintains all electrical parameters of the main part number but differs only in packaging format.

0805B472K500CT from Walsin Technology Corporation is a direct electrical substitute with ROHS3 compliance and REACH Unaffected status, offering improved regulatory compliance while maintaining 4700 pF, ±10%, 50V, X7R specifications.

Upgrade Substitutes (Enhanced Compliance & Performance):

KAF21BR71H472KT, KAM21BR71H472KM, and KAM21BR71H472KT from KYOCERA AVX offer ROHS3 compliance and REACH Unaffected status. KAF21BR71H472KT includes soft termination (FLEXITERM® series) for boardflex-sensitive applications. KAM series parts carry AEC-Q200 automotive certification.

KGM21NR71H472JT and KGM21NR71H472KT provide tighter ±5% tolerance with ROHS3 compliance. KGM21NR72A472JT offers higher 100V rating with ±5% tolerance for applications requiring voltage margin.

0805PC472KAT1A provides the highest voltage rating (250V) with ROHS3 compliance for applications requiring enhanced voltage headroom, though thickness increases to 0.051" (1.30mm).

Frequently Asked Questions (FAQ)

Q: Can I use LD055C472KAB2A as a direct replacement for 08055C472KAJ2A?

A: Yes. LD055C472KAB2A is electrically identical (4700 pF, ±10%, 50V, X7R, 0805 package). The difference is packaging format: LD055C472KAB2A is supplied in Tape & Reel while the main part is bulk. Both are surface mount MLCCs with identical footprints and performance characteristics.

Q: What is the difference between the main part and the KGM series substitutes?

A: KGM21NR71H472JT and KGM21NR71H472KT maintain the same 4700 pF, 50V, X7R specifications but offer tighter ±5% tolerance (vs. ±10%). Both include ROHS3 compliance and REACH Unaffected status. KGM21NR72A472JT increases voltage rating to 100V while maintaining ±5% tolerance.

Q: Is 0805PC472KAT1A compatible with the same PCB footprint?

A: Yes, 0805PC472KAT1A uses the same 0805 (2012 Metric) package footprint. However, thickness increases from 0.037" (0.94mm) to 0.051" (1.30mm) due to higher 250V rating. Verify clearance in your assembly before substitution.

Q: Which substitute offers the best regulatory compliance?

A: All upgrade substitutes (KAF21BR71H472KT, KAM series, KGM series, 0805B472K500CT, and 0805PC472KAT1A) are ROHS3 Compliant and REACH Unaffected. The main part 08055C472KAJ2A is RoHS non-compliant and REACH Affected.

Q: Can I use 0805B472K500CT from Walsin Technology instead of KYOCERA AVX parts?

A: Yes. 0805B472K500CT is electrically and mechanically compatible (4700 pF, ±10%, 50V, X7R, 0805 package). It is from a different manufacturer but meets identical electrical specifications and offers improved ROHS3 compliance and REACH Unaffected status.

Q: Are automotive-grade parts (KAM21BR71H472KM, KAM21BR71H472KT) required for my application?

A: Automotive-grade parts carry AEC-Q200 certification. Use these only if your application requires automotive qualification. For general purpose applications, non-automotive substitutes are functionally equivalent.

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