KEMET T520B476M006ASE070 Equivalent & Substitute Parts

Part Overview

The KEMET T520B476M006ASE070 is a 47 µF molded tantalum polymer capacitor rated at 6.3 V with an ESR of 70 mOhm @ 100 kHz, housed in a 1411 (3528 Metric) surface mount package. This component belongs to the KO-CAP® T520 series and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Capacitance	47 µF
Voltage Rating	6.3 V
ESR @ 100 kHz	70 mOhm
Package / Case	1411 (3528 Metric)
Type	Molded Tantalum Polymer
Operating Temperature Range	-55°C to 105°C
Lifetime @ 105°C	2000 Hours
Tolerance	±20%
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the T520B476M006ASE070 is determined by the following critical parameters:

Primary Substitution Criteria:

Capacitance: 47 µF (exact match required)
Voltage Rating: 6.3 V (exact match required)
ESR @ 100 kHz: 70 mOhm (exact match required)
Package / Case: 1411 (3528 Metric) (exact match required)
Type: Molded Tantalum Polymer (exact match required)
Operating Temperature Range: -55°C to 105°C (exact match required)
Lifetime @ 105°C: 2000 Hours (exact match required)

Secondary Compatibility Factors:

Tolerance: ±20% (consistent across all substitutes)
Mounting Type: Surface Mount (consistent across all substitutes)
RoHS Compliance: ROHS3 Compliant (preferred for regulatory alignment)
MSL Rating: 3 (168 Hours) (consistent across all substitutes)

Substitute parts are classified into two categories:

Direct Manufacturer Equivalents (KEMET): Parts that maintain identical electrical and mechanical specifications with active product status, differing only in packaging format or internal manufacturing code.

Parametric Equivalents (KEMET): Parts that meet all critical electrical parameters and package specifications but may differ in packaging configuration or RoHS compliance status.

Similar Cross-Manufacturer Parts (KYOCERA AVX): Parts from alternative manufacturers that share the same capacitance, voltage, and general specifications but differ in package designation, ESR value, or physical dimensions.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 100 kHz	Package	Height (Max)	Product Status	RoHS Status	Packaging Format
T520B476M006ASE070	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Obsolete	ROHS3	Bulk
T520B476M006ATE070	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Active	ROHS3	Cut Tape & Digi-Reel
T520T476M006ATE070	KEMET	47 µF	6.3 V	70 mOhm	1411	0.047" (1.20 mm)	Active	ROHS3	Cut Tape & Digi-Reel
T520B476M006AHE070	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Active	RoHS Non-Compliant	Cut Tape & Digi-Reel
T520B476M006ATE0702478	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Active	ROHS3	Tape & Reel
T520B476M006ATE0704539	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Active	ROHS3	Tape & Reel
T520B476M006ATE0707280	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Active	ROHS3	Tape & Reel
T520B476M006ATE0707622	KEMET	47 µF	6.3 V	70 mOhm	1411	0.079" (2.00 mm)	Active	ROHS3	Tape & Reel
TCJT476M006R0080	KYOCERA AVX	47 µF	6.3 V	80 mOhm	1210	0.047" (1.20 mm)	Active	ROHS3	Tape & Reel

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (Recommended for Replacement):

T520B476M006ATE070 is the primary recommended substitute. This part maintains identical electrical specifications (47 µF, 6.3 V, 70 mOhm ESR) and mechanical dimensions as the obsolete T520B476M006ASE070. It carries active product status and ROHS3 compliance. The only difference is packaging format (Cut Tape & Digi-Reel versus bulk), which does not affect component performance.

Tier 2 - Parametric Equivalents with Height Variation:

T520T476M006ATE070 provides identical electrical performance but features a reduced seated height of 0.047" (1.20 mm) compared to the original 0.079" (2.00 mm). This part is suitable for space-constrained applications where the lower profile is beneficial. Active product status and ROHS3 compliance are confirmed.

Tier 3 - Parametric Equivalents with Compliance Variation:

T520B476M006AHE070 matches all electrical and mechanical specifications of the original part but carries RoHS non-compliant status. This part is suitable only for applications where RoHS compliance is not a regulatory requirement.

Tier 4 - Packaging Format Variants:

T520B476M006ATE0702478, T520B476M006ATE0704539, T520B476M006ATE0707280, and T520B476M006ATE0707622 are KEMET equivalents supplied in Tape & Reel format. These parts maintain identical electrical and mechanical specifications with ROHS3 compliance and active product status. Selection among these variants depends on procurement quantity and supply chain requirements.

Tier 5 - Cross-Manufacturer Alternative:

TCJT476M006R0080 (KYOCERA AVX) is a similar tantalum polymer capacitor with matching capacitance (47 µF) and voltage rating (6.3 V). However, this part differs in ESR (80 mOhm versus 70 mOhm) and package designation (1210 versus 1411), with a lower seated height of 0.047" (1.20 mm). This part is suitable only when ESR tolerance and package differences are acceptable for the application.

Frequently Asked Questions (FAQ)

Q1: Can T520T476M006ATE070 be used as a direct replacement for T520B476M006ASE070?

A: Yes. T520T476M006ATE070 is electrically equivalent with identical capacitance (47 µF), voltage rating (6.3 V), and ESR (70 mOhm @ 100 kHz). The primary difference is the seated height: 0.047" (1.20 mm) versus 0.079" (2.00 mm). This lower profile is compatible with the same 1411 package footprint and does not affect electrical performance. Verify PCB clearance requirements before substitution.

Q2: What is the difference between T520B476M006ATE070 and T520B476M006ATE0702478?

A: Both parts are electrically and mechanically identical with 47 µF capacitance, 6.3 V rating, and 70 mOhm ESR in a 1411 package. The difference is packaging format: T520B476M006ATE070 is supplied in Cut Tape & Digi-Reel format, while T520B476M006ATE0702478 is supplied in Tape & Reel format. Selection depends on procurement volume and assembly line requirements.

Q3: Is TCJT476M006R0080 from KYOCERA AVX a suitable replacement?

A: TCJT476M006R0080 shares the same capacitance (47 µF) and voltage rating (6.3 V) but differs in three critical parameters: ESR (80 mOhm versus 70 mOhm), package designation (1210 versus 1411), and seated height (0.047" versus 0.079"). This part is suitable only if the application tolerates higher ESR and the different package footprint is compatible with the PCB layout.

Q4: Why is T520B476M006AHE070 marked as RoHS non-compliant?

A: T520B476M006AHE070 is an older variant within the T520 series that does not meet ROHS3 compliance standards. It is electrically and mechanically equivalent to the original part but is restricted for use in applications requiring RoHS certification. For RoHS-compliant designs, select T520B476M006ATE070 or other ROHS3-compliant variants.

Q5: What does the packaging format difference (Cut Tape & Digi-Reel versus Tape & Reel) mean?

A: Cut Tape & Digi-Reel format provides components on individual tape segments suitable for manual handling or small-scale assembly. Tape & Reel format supplies components on continuous reels optimized for high-volume automated assembly. Both formats contain identical components; selection depends on production volume and assembly equipment compatibility.

Q6: Are all substitute parts compatible with the original PCB design?

A: All KEMET T520 series substitutes (T520B476M006ATE070, T520T476M006ATE070, T520B476M006AHE070, and Tape & Reel variants) share the same 1411 package footprint and are mechanically compatible. T520T476M006ATE070 has a lower seated height but remains compatible with the same footprint. TCJT476M006R0080 uses a different package designation (1210) and requires PCB layout verification before substitution.

Q7: What is the significance of the part number suffix codes (B, T, H, ATE, AHE)?

A: Part number codes indicate manufacturing variants and specifications. The letter following "T520" (B or T) indicates the manufacturer size code and seated height. The suffix (ATE, AHE) indicates packaging and compliance variants. These codes do not affect electrical performance but determine packaging format, RoHS compliance, and physical dimensions.

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