TAP475K025SCS Equivalent & Substitute Parts

Part Overview

The TAP475K025SCS is a 4.7 µF conformal coated tantalum capacitor rated at 25 V with radial through-hole mounting. Manufactured by KYOCERA AVX, this component is classified as Active product status with 2980 units in current inventory. Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance) and mechanical compatibility (package type, mounting configuration, lead spacing) within the TAP series and cross-manufacturer alternatives.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	25 V
Tolerance	±10%
Type	Conformal Coated Tantalum
Mounting Type	Through Hole Radial
Package / Case	Radial
Operating Temperature Range	-55°C ~ 125°C
ESR	4 Ohm
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TAP475K025SCS is determined by the following critical parameters:

Primary Matching Criteria:

Capacitance value: 4.7 µF (exact match required)
Voltage rating: 25 V (exact match required for direct substitution)
Tolerance: ±10% (exact match required)
Mounting type: Through Hole Radial (exact match required)
Package case: Radial (exact match required)

Secondary Compatibility Factors:

Operating temperature range: -55°C ~ 125°C (minimum requirement)
Conformal coating type (maintained across all substitutes)
Lead spacing and physical dimensions (within mechanical assembly constraints)

The identified substitutes meet these criteria across manufacturers (KYOCERA AVX, Vishay Sprague, KEMET) while maintaining functional equivalence in circuit applications.

Parameter Comparison

Parameter	TAP475K025SCS (Main)	TAP475K006SCS	199D475X9025B1V1E3	T350C475K025AS
Manufacturer	KYOCERA AVX	KYOCERA AVX	Vishay Sprague	KEMET
Capacitance	4.7 µF	4.7 µF	4.7 µF	4.7 µF
Voltage Rating	25 V	6.3 V	25 V	25 V
Tolerance	±10%	±10%	±10%	±10%
Type	Conformal Coated	Conformal Coated	Conformal Coated	Conformal Coated
ESR	4 Ohm	10 Ohm	Not Specified	4 Ohm
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Lifetime @ Temp.	1000 Hrs @ 85°C	1000 Hrs @ 85°C	1000 Hrs @ 85°C	Not Specified
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial
Size / Dimension	0.197" Dia (5.00mm)	0.177" Dia (4.50mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)
Height - Seated (Max)	0.335" (8.50mm)	0.276" (7.00mm)	0.300" (7.62mm)	0.331" (8.40mm)
Lead Spacing	0.098" (2.50mm)	0.098" (2.50mm)	0.100" (2.54mm)	0.100" (2.54mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalents (25 V Rating):

199D475X9025B1V1E3 (Vishay Sprague TANTALEX™ 199D series) and T350C475K025AS (KEMET T350 UltraDip II series) are direct electrical equivalents to the TAP475K025SCS. Both maintain the 4.7 µF capacitance, 25 V voltage rating, ±10% tolerance, and conformal coating specification. Physical dimensions are within acceptable radial package tolerances. The 199D475X9025B1V1E3 maintains ROHS3 compliance matching the main part. The T350C475K025AS is RoHS non-compliant and should be selected only when legacy component specifications are required.

Voltage-Derated Substitute:

TAP475K006SCS (KYOCERA AVX TAP series) provides the same 4.7 µF capacitance and tolerance but operates at a reduced 6.3 V rating. This part is suitable only for applications where the circuit voltage requirement does not exceed 6.3 V. The increased ESR (10 Ohm vs. 4 Ohm) and reduced physical dimensions (4.50mm diameter vs. 5.00mm) must be evaluated for circuit performance and PCB layout compatibility.

Compliance Considerations:

All parts maintain REACH Unaffected and EAR99 ECCN classifications. ROHS3 compliance is confirmed for TAP475K025SCS, TAP475K006SCS, and 199D475X9025B1V1E3. Applications requiring RoHS compliance should exclude T350C475K025AS.

Frequently Asked Questions (FAQ)

Q: Can TAP475K006SCS replace TAP475K025SCS in all applications?

A: No. TAP475K006SCS has a 6.3 V voltage rating compared to 25 V for the main part. Substitution is valid only when the circuit operating voltage does not exceed 6.3 V. Using a lower-rated capacitor in a higher-voltage circuit creates reliability and safety risks.

Q: What is the difference between the Vishay 199D475X9025B1V1E3 and KEMET T350C475K025AS?

A: Both are 4.7 µF, 25 V conformal coated radial tantalum capacitors with ±10% tolerance. The primary difference is RoHS compliance: the Vishay part is ROHS3 compliant while the KEMET part is RoHS non-compliant. Physical dimensions vary slightly (height 7.62mm vs. 8.40mm, lead spacing 2.54mm vs. 2.50mm). Select based on compliance requirements and PCB layout constraints.

Q: Are there mechanical compatibility issues when substituting between manufacturers?

A: Lead spacing differs between some substitutes (2.50mm vs. 2.54mm). Verify PCB pad spacing before substitution. Physical dimensions (diameter and height) are similar across all 25 V rated parts but should be confirmed against PCB layout constraints, particularly for height-restricted applications.

Q: Which substitute offers the best performance match to TAP475K025SCS?

A: The 199D475X9025B1V1E3 (Vishay Sprague) provides the closest electrical and compliance match, maintaining 4 Ohm ESR specification, ROHS3 compliance, and identical voltage rating. Physical dimensions are equivalent within radial package tolerances.

Q: Can I use these substitutes interchangeably in production?

A: Direct substitution is valid only between parts with matching voltage ratings (25 V) and compliance certifications. TAP475K006SCS requires circuit voltage verification. T350C475K025AS requires RoHS compliance review. Implement design validation testing when transitioning between manufacturers.

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