T520B107M006ASE040 Equivalent & Substitute Parts

Part Overview

The T520B107M006ASE040 is a 100 µF molded tantalum polymer capacitor rated at 6.3 V with 40 mOhm equivalent series resistance (ESR) at 100 kHz, manufactured by KEMET in the KO-CAP® T520 series. This component is packaged in the 1411 (3528 Metric) surface mount form factor with a maximum seated height of 0.079 inches (2.00 mm).

The T520B107M006ASE040 carries an obsolete product status. Equivalent and substitute parts are available from KEMET and Vishay Sprague with active product status, offering improved availability and compliance certifications suitable for ongoing production and new designs.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage - Rated	6.3 V
ESR (Equivalent Series Resistance)	40 mOhm @ 100 kHz
Type	Molded Tantalum Polymer
Package / Case	1411 (3528 Metric)
Size / Dimension	0.138" L x 0.110" W (3.50 mm x 2.80 mm)
Height - Seated (Max)	0.079" (2.00 mm)
Operating Temperature Range	-55°C ~ 105°C
Tolerance	±20%
Mounting Type	Surface Mount
Lifetime @ Temp.	2000 Hrs @ 105°C
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the T520B107M006ASE040 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 100 µF
Voltage Rating: 6.3 V
Package / Case: 1411 (3528 Metric)
Mounting Type: Surface Mount
Operating Temperature Range: -55°C ~ 105°C
Tolerance: ±20%

Performance Parameters:

ESR @ 100 kHz: 40 mOhm (primary performance criterion)
Physical Dimensions: 0.138" L x 0.110" W (3.50 mm x 2.80 mm)
Maximum Seated Height: 0.079" (2.00 mm)

Substitute parts are grouped into two categories:

Category 1: Direct KEMET Equivalents (40 mOhm ESR) Parts T520B107M006ATE040 and T520B107M006AHE040 are direct electrical and mechanical equivalents with identical ESR specifications. These differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and product compliance status.

Category 2: KEMET Variants with Reel Tracking Codes Parts T520B107M006ATE0402478, T520B107M006ATE0407111, and T520B107M006ATE0407280 are parametric equivalents with identical electrical performance and physical dimensions. These variants include manufacturer reel tracking codes and maintain 40 mOhm ESR specifications.

Category 3: Cross-Manufacturer Equivalent (Vishay Sprague) Part T55B107M6R3C0100 from Vishay Sprague is a parametric equivalent with matching capacitance, voltage, package, and operating temperature range. This part has a higher ESR specification of 100 mOhm @ 100 kHz and a maximum seated height of 0.083" (2.10 mm), representing a performance trade-off with different electrical characteristics.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 100 kHz	Package	Height (Max)	Product Status	RoHS Status	Packaging Format
T520B107M006ASE040	KEMET	100 µF	6.3 V	40 mOhm	1411 (3528 Metric)	0.079" (2.00 mm)	Obsolete	RoHS non-compliant	-
T520B107M006ATE040	KEMET	100 µF	6.3 V	40 mOhm	1411 (3528 Metric)	0.079" (2.00 mm)	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
T520B107M006AHE040	KEMET	100 µF	6.3 V	40 mOhm	1411 (3528 Metric)	0.079" (2.00 mm)	Active	RoHS non-compliant	Tape & Reel (TR)
T520B107M006ATE0402478	KEMET	100 µF	6.3 V	40 mOhm	1411 (3528 Metric)	0.079" (2.00 mm)	Active	ROHS3 Compliant	Tape & Reel (TR)
T520B107M006ATE0407111	KEMET	100 µF	6.3 V	40 mOhm	1411 (3528 Metric)	0.079" (2.00 mm)	Active	ROHS3 Compliant	Tape & Reel (TR)
T520B107M006ATE0407280	KEMET	100 µF	6.3 V	40 mOhm	1411 (3528 Metric)	0.079" (2.00 mm)	Active	ROHS3 Compliant	Tape & Reel (TR)
T55B107M6R3C0100	Vishay Sprague	100 µF	6.3 V	100 mOhm	1411 (3528 Metric)	0.083" (2.10 mm)	Active	ROHS3 Compliant	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Recommendation: T520B107M006ATE040

The T520B107M006ATE040 is the preferred direct substitute for the obsolete T520B107M006ASE040. This part maintains identical electrical performance (100 µF, 6.3 V, 40 mOhm ESR) and physical dimensions while offering active product status and ROHS3 compliance. Availability is substantial at 205,200 pieces in stock. This part is suitable for new designs and production environments requiring RoHS compliance certification.

Secondary Recommendation: T520B107M006AHE040

The T520B107M006AHE040 provides an alternative from KEMET with identical electrical and mechanical specifications. This part carries active product status and is available in Tape & Reel packaging format. RoHS compliance status is non-compliant, making this option suitable for applications where RoHS certification is not required. Inventory availability is 2,023 pieces.

Tertiary Recommendations: T520B107M006ATE0402478, T520B107M006ATE0407111, T520B107M006ATE0407280

These three KEMET variants are parametric equivalents with identical performance specifications and ROHS3 compliance. The suffix codes represent manufacturer reel tracking identifiers. These parts are suitable for applications requiring traceability through reel tracking codes. Inventory levels range from 713 to 949 pieces.

Cross-Manufacturer Alternative: T55B107M6R3C0100

The Vishay Sprague T55B107M6R3C0100 is a parametric equivalent with matching capacitance, voltage rating, package, and operating temperature range. This part has a higher ESR specification of 100 mOhm @ 100 kHz (compared to 40 mOhm in the primary part) and a maximum seated height of 0.083" (2.10 mm) (compared to 0.079" in the primary part). This part carries ROHS3 compliance and active product status. Selection of this part is appropriate when ESR performance is not a critical design constraint and cross-manufacturer sourcing is acceptable. Inventory availability is 3,410 pieces.

Frequently Asked Questions (FAQ)

Q: Can T520B107M006ATE040 be used as a direct replacement for T520B107M006ASE040?

A: Yes. The T520B107M006ATE040 is a direct electrical and mechanical equivalent with identical capacitance (100 µF), voltage rating (6.3 V), ESR (40 mOhm @ 100 kHz), package (1411/3528 Metric), and physical dimensions. The primary differences are packaging format and product compliance status. The T520B107M006ATE040 is active and ROHS3 compliant, whereas the original part is obsolete and RoHS non-compliant.

Q: What is the difference between T520B107M006ATE040 and T520B107M006AHE040?

A: Both parts are identical in electrical performance and physical dimensions. The difference is in packaging format: T520B107M006ATE040 is supplied in Cut Tape (CT) & Digi-Reel® format, while T520B107M006AHE040 is supplied in Tape & Reel (TR) format. The T520B107M006ATE040 is ROHS3 compliant, while T520B107M006AHE040 is RoHS non-compliant.

Q: What do the suffix codes in T520B107M006ATE0402478, T520B107M006ATE0407111, and T520B107M006ATE0407280 represent?

A: The numeric suffixes are manufacturer reel tracking codes that identify specific manufacturing batches or reels. These parts are parametric equivalents with identical electrical and mechanical specifications to T520B107M006ATE040. The reel tracking codes provide traceability for quality assurance and supply chain management purposes.

Q: Can the Vishay Sprague T55B107M6R3C0100 be used as a substitute?

A: The T55B107M6R3C0100 is a parametric equivalent with matching capacitance, voltage, package, and operating temperature range. However, it has a higher ESR specification of 100 mOhm @ 100 kHz compared to 40 mOhm in the original part, and a maximum seated height of 0.083" (2.10 mm) compared to 0.079" in the original part. This part is suitable for applications where ESR performance is not a critical design constraint and the additional 0.004" height is acceptable within the PCB layout.

Q: Are all substitute parts compatible with the same PCB footprint?

A: The KEMET parts (T520B107M006ATE040, T520B107M006AHE040, and the reel-tracked variants) share identical physical dimensions and are fully compatible with the original T520B107M006ASE040 footprint. The Vishay Sprague T55B107M6R3C0100 has a maximum seated height of 0.083" (2.10 mm) compared to 0.079" (2.00 mm) for the KEMET parts. Verify PCB clearance specifications if height tolerance is critical.

Q: What is the difference between RoHS non-compliant and ROHS3 compliant parts?

A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive 2011/65/EU as amended by Directive (EU) 2015/863. RoHS non-compliant parts do not meet these restrictions. Selection depends on application requirements and regulatory jurisdiction. ROHS3 compliant parts are required for products sold in the European Union and many other regulated markets.

Q: Which substitute part has the best availability?

A: The T520B107M006ATE040 has the highest inventory level at 205,200 pieces in stock, making it the most readily available substitute. This part also offers ROHS3 compliance and active product status, supporting both immediate procurement and long-term supply chain stability.

Q: Are all substitute parts rated for the same operating temperature range?

A: Yes. All substitute parts listed are rated for -55°C to 105°C operating temperature range with 2000 hours lifetime at 105°C, matching the original T520B107M006ASE040 specifications.

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