T520X477M006ASE035 Equivalent & Substitute Parts

Part Overview

The T520X477M006ASE035 is a 470 µF molded tantalum polymer capacitor rated at 6.3 V with 35 mOhm equivalent series resistance at 100 kHz, manufactured by KEMET in the KO-CAP® T520 series. This component is classified as obsolete and has been superseded by active production alternatives within the same electrical and mechanical specifications. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

Key Parameters

Parameter	Value	Unit
Capacitance	470	µF
Voltage - Rated	6.3	V
ESR @ 100 kHz	35	mOhm
Type	Molded Tantalum Polymer	—
Package / Case	2917 (7343 Metric)	—
Operating Temperature Range	-55°C to 105°C	—
Lifetime @ 105°C	2000	Hrs
Tolerance	±20%	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level	3	168 Hours

Substitute Part Grouping Explanation

Substitute parts for the T520X477M006ASE035 are qualified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Capacitance: 470 µF (exact match required)
Voltage Rating: 6.3 V (exact match required)
ESR: 35 mOhm @ 100 kHz (exact match required)
Package / Case: 2917 (7343 Metric) (exact match required)
Operating Temperature: -55°C to 105°C (exact match required)
Lifetime: 2000 Hrs @ 105°C (exact match required)
Type: Molded Tantalum Polymer (exact match required)
Tolerance: ±20% (exact match required)

Secondary Considerations:

Product Status: Active production status preferred over obsolete
RoHS Compliance: ROHS3 compliant variants available
Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR)
Height Variation: Seated height differences within same footprint (1.50 mm to 4.30 mm)
Manufacturer: KEMET KO-CAP® T520/T522 series or KYOCERA AVX TCJ series

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the original part number.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	ESR @ 100kHz (mOhm)	Package	Height Max (mm)	Product Status	RoHS Status	Packaging Type
T520X477M006ASE035	KEMET	KO-CAP® T520	470	6.3	35	2917	4.30	Obsolete	Non-compliant	—
T520V477M006ATE035	KEMET	KO-CAP® T520	470	6.3	35	2917	1.90	Active	ROHS3	Cut Tape & Digi-Reel®
T520W477M006ATE035	KEMET	KO-CAP® T520	470	6.3	35	2917	1.50	Active	ROHS3	Cut Tape & Digi-Reel®
T520X477M006ATE035	KEMET	KO-CAP® T520	470	6.3	35	2917	4.30	Active	ROHS3	Tape & Reel
T520Y477M006ATE035	KEMET	KO-CAP® T520	470	6.3	35	2917	4.00	Active	ROHS3	Tape & Reel
T522Y477M006ATE035	KEMET	KO-CAP® T522	470	6.3	35	2917	4.00	Active	ROHS3	Tape & Reel
T520X477M006ATE0357111	KEMET	KO-CAP® T520	470	6.3	35	2917	4.30	Active	ROHS3	Tape & Reel
T520X477M006ATE0358000	KEMET	KO-CAP® T520	470	6.3	35	2917	4.30	Active	ROHS3	Tape & Reel
TCJX477M006R0035E	KYOCERA AVX	TCJ	470	6.3	35	2917	1.50	Active	ROHS3	Tape & Reel

Engineering Selection Recommendations

Primary Recommendation: T520X477M006ATE035

The T520X477M006ATE035 is the direct active equivalent to the obsolete T520X477M006ASE035. Both parts share identical electrical specifications (470 µF, 6.3 V, 35 mOhm ESR), mechanical dimensions (2917 package, 4.30 mm seated height), and operational characteristics. The primary difference is product status: T520X477M006ATE035 is in active production with ROHS3 compliance, whereas the original part is obsolete and non-compliant. This part is available in Tape & Reel packaging with 2657 units in stock.

Secondary Recommendations by Application Requirement:

For Space-Constrained Designs:

T520W477M006ATE035: Lowest profile option (1.50 mm height) with active status and ROHS3 compliance. Available in Cut Tape & Digi-Reel® packaging (2300 units in stock).
TCJX477M006R0035E: Alternative low-profile solution (1.50 mm height) from KYOCERA AVX TCJ series. ROHS3 compliant, Tape & Reel packaging (1781 units in stock).

For Standard Height Applications:

T520Y477M006ATE035: Mid-height option (4.00 mm) with active status and ROHS3 compliance. Tape & Reel packaging (2556 units in stock).
T522Y477M006ATE035: Alternative mid-height option (4.00 mm) from KO-CAP® T522 series. ROHS3 compliant, Tape & Reel packaging (1179 units in stock).

For High-Volume Production:

T520V477M006ATE035: Compact height (1.90 mm) with highest inventory availability (2575 units). Cut Tape & Digi-Reel® packaging supports automated assembly processes.

Compliance Consideration: All active substitute parts are ROHS3 compliant, addressing the non-compliance status of the original obsolete part. Selection should prioritize active production status and compliance requirements for new designs.

Frequently Asked Questions (FAQ)

Q: Can T520X477M006ATE035 be used as a direct replacement for T520X477M006ASE035?

A: Yes. Both parts are electrically and mechanically identical: 470 µF capacitance, 6.3 V rating, 35 mOhm ESR at 100 kHz, 2917 package, and 4.30 mm seated height. The primary difference is that T520X477M006ATE035 is in active production with ROHS3 compliance, while T520X477M006ASE035 is obsolete and non-compliant.

Q: What is the difference between the various KEMET part numbers (T520V, T520W, T520X, T520Y, T522Y)?

A: The letter designation (V, W, X, Y) indicates the manufacturer size code, which directly correlates to seated height: V = 1.90 mm, W = 1.50 mm, X = 4.30 mm, Y = 4.00 mm. All variants maintain identical electrical specifications (470 µF, 6.3 V, 35 mOhm ESR) and package footprint (2917). Selection depends on available PCB clearance and assembly requirements.

Q: Are T520X477M006ATE0357111 and T520X477M006ATE0358000 suitable substitutes?

A: Yes. Both are parametric equivalents with identical electrical and mechanical specifications to T520X477M006ATE035. The suffix designations (7111 and 8000) represent internal manufacturing or date codes but do not affect electrical performance or compatibility.

Q: Can TCJX477M006R0035E from KYOCERA AVX replace KEMET parts?

A: Yes. TCJX477M006R0035E meets all electrical and mechanical requirements: 470 µF, 6.3 V, 35 mOhm ESR, 2917 package. It is ROHS3 compliant and in active production. The primary difference is manufacturer (KYOCERA AVX TCJ series versus KEMET KO-CAP® series) and lower seated height (1.50 mm versus 4.30 mm for the original part).

Q: What packaging options are available?

A: Substitute parts are available in three packaging formats: Cut Tape (CT) & Digi-Reel® (T520V, T520W), Tape & Reel (TR) (T520X, T520Y, T522Y, TCJX, and parametric variants). Selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The original T520X477M006ASE035 is marked as RoHS non-compliant. For applications requiring RoHS compliance, any of the active substitute parts are suitable.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All parts, including the original and all substitutes, have MSL 3 with a 168-hour floor life. This requires controlled storage conditions and handling procedures consistent with IPC-A-610 standards.

Q: Can parts with different seated heights be used interchangeably on the same PCB?

A: Seated height differences (1.50 mm to 4.30 mm) do not affect electrical performance or footprint compatibility on the PCB. However, height variations may impact assembly clearance, wave soldering profiles, or conformal coating processes. Verify mechanical clearance requirements before substitution.

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