ECK-AHD471KB Equivalent & Substitute Parts

Part Overview

The Panasonic ECK-AHD471KB is a 470 pF ceramic capacitor rated for 2000V (2kV) with Y5P temperature coefficient and radial disc package configuration. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts maintain the same capacitance and tolerance specifications while offering improved availability through active product lines from alternative manufacturers.

Key Parameters

Parameter	Value
Capacitance	470 pF
Tolerance	±10%
Voltage Rating	2000V (2kV)
Temperature Coefficient	Y5P (B)
Operating Temperature Range	-25°C ~ 125°C
Package Type	Radial, Disc
Mounting Type	Through Hole
Lead Style	Formed Leads

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical compatibility:

Upgrade Substitutes (Higher Voltage Rating): Parts S471K33Y5PR63K6R, S471K33Y5PR63K7R, and S471K33Y5PR65K7R operate at 3000V (3kV) rating, providing enhanced voltage margin while maintaining identical capacitance (470 pF), tolerance (±10%), and temperature coefficient (Y5P). These are direct functional upgrades suitable for applications where the original 2kV rating is adequate but higher voltage headroom is beneficial.

Similar Substitutes (Equivalent Voltage Rating): Parts S471K29Y5PP63K5R, S471K29Y5PP63L5R, S471K29Y5PP6TK5R, and S471K29Y5PP6TK7R maintain the 2000V (2kV) voltage specification with identical capacitance and tolerance. These differ primarily in physical dimensions (lead spacing and package height) and packaging format (bulk versus tape & reel).

Substitution eligibility is determined by:

Capacitance value: 470 pF (fixed)
Tolerance: ±10% (fixed)
Temperature coefficient: Y5P (B) (fixed)
Voltage rating: 2000V minimum (3000V acceptable as upgrade)
Package type: Radial, Disc (fixed)
Mounting type: Through Hole (fixed)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Temperature Coefficient	Operating Temp Range	Size (Dia)	Lead Spacing	Packaging	Product Status
ECK-AHD471KB	Panasonic	470 pF	2000V	Y5P (B)	-25°C ~ 125°C	0.354" (9.00mm)	0.295" (7.50mm)	Radial	Obsolete
S471K33Y5PR63K6R	Vishay Beyschlag/Draloric/BC Components	470 pF	3000V	Y5P (B)	-30°C ~ 125°C	0.335" (8.50mm)	0.252" (6.40mm)	Bulk	Active
S471K33Y5PR63K7R	Vishay Beyschlag/Draloric/BC Components	470 pF	3000V	Y5P (B)	-30°C ~ 125°C	0.335" (8.50mm)	0.295" (7.50mm)	Bulk	Active
S471K33Y5PR65K7R	Vishay Beyschlag/Draloric/BC Components	470 pF	3000V	Y5P (B)	-30°C ~ 125°C	0.335" (8.50mm)	0.295" (7.50mm)	Bulk	Active
S471K29Y5PP63K5R	Vishay Beyschlag/Draloric/BC Components	470 pF	2000V	Y5P (B)	-30°C ~ 125°C	0.295" (7.50mm)	0.197" (5.00mm)	Bulk	Active
S471K29Y5PP63L5R	Vishay Beyschlag/Draloric/BC Components	470 pF	2000V	Y5P (B)	-30°C ~ 125°C	0.295" (7.50mm)	0.197" (5.00mm)	Bulk	Active
S471K29Y5PP6TK5R	Vishay Beyschlag/Draloric/BC Components	470 pF	2000V	Y5P (B)	-30°C ~ 125°C	0.295" (7.50mm)	0.197" (5.00mm)	Tape & Reel	Active
S471K29Y5PP6TK7R	Vishay Beyschlag/Draloric/BC Components	470 pF	2000V	Y5P (B)	-30°C ~ 125°C	0.295" (7.50mm)	0.295" (7.50mm)	Tape & Reel	Active

Engineering Selection Recommendations

For Direct Replacement (Equivalent Voltage): Select S471K29Y5PP6TK7R or S471K29Y5PP63K5R when maintaining the original 2000V specification is required. S471K29Y5PP6TK7R offers lead spacing matching the original ECK-AHD471KB (0.295"), minimizing PCB layout modifications. Both parts are ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements. S471K29Y5PP6TK7R is available in tape & reel packaging for automated assembly; S471K29Y5PP63K5R is available in bulk format.

For Upgraded Performance (Higher Voltage Margin): Select S471K33Y5PR63K7R when design margins permit voltage rating increase to 3000V. This part maintains lead spacing compatibility (0.295") with the original design while providing 50% additional voltage headroom. S471K33Y5PR63K7R offers the highest inventory availability (18,659 units) among all substitutes and is ROHS3 compliant.

Packaging Considerations: Tape & reel variants (S471K29Y5PP6TK5R, S471K29Y5PP6TK7R) are suitable for high-volume production with automated pick-and-place equipment. Bulk packaging variants are appropriate for manual assembly or lower-volume applications.

Frequently Asked Questions (FAQ)

Q: Can S471K33Y5PR63K7R (3kV) be used in place of ECK-AHD471KB (2kV)?

A: Yes. The 3000V rating is a superset of the 2000V requirement. All other electrical parameters (capacitance, tolerance, temperature coefficient) are identical. Physical dimensions differ slightly; verify PCB layout compatibility before implementation.

Q: What is the difference between S471K29Y5PP63K5R and S471K29Y5PP6TK7R?

A: Both maintain 2000V rating and identical electrical specifications. S471K29Y5PP63K5R uses 0.197" lead spacing (5.00mm) in bulk packaging. S471K29Y5PP6TK7R uses 0.295" lead spacing (7.50mm) in tape & reel packaging, matching the original ECK-AHD471KB lead spacing. Select based on PCB layout requirements and assembly method.

Q: Are all substitute parts RoHS compliant?

A: All Vishay Beyschlag/Draloric/BC Components substitutes listed are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the operating temperature difference between ECK-AHD471KB and substitutes?

A: The original part operates -25°C to 125°C. All Vishay substitutes operate -30°C to 125°C, providing extended low-temperature performance. This is a functional improvement with no compatibility impact.

Q: Can I use S471K29Y5PP63L5R as a direct replacement?

A: S471K29Y5PP63L5R is electrically equivalent to ECK-AHD471KB but uses 0.197" lead spacing versus the original 0.295" spacing. PCB layout modification is required. Verify footprint compatibility before selection.

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