Equivalent & Substitute Parts for T520D157M006ASE015

Part Overview

The T520D157M006ASE015 is a 150 µF molded tantalum polymer capacitor manufactured by KEMET, rated at 6.3 V with an ESR of 15 mOhm @ 100 kHz in a 2917 (7343 Metric) surface mount package. This part operates across a temperature range of -55°C to 105°C with a lifetime specification of 2000 hours at 105°C. The T520D157M006ASE015 is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Active alternatives from KEMET, Panasonic Electronic Components, and KYOCERA AVX are available with identical electrical specifications and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage - Rated	6.3 V
Type	Molded Tantalum Polymer
ESR (Equivalent Series Resistance)	15 mOhm @ 100 kHz
Operating Temperature Range	-55°C to 105°C
Lifetime @ Temperature	2000 Hrs @ 105°C
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Tolerance	±20%
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the T520D157M006ASE015 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

Capacitance: 150 µF
Voltage Rating: 6.3 V
ESR: 15 mOhm @ 100 kHz
Operating Temperature Range: -55°C to 105°C
Lifetime: 2000 Hrs @ 105°C
Tolerance: ±20%

Mechanical Parameters (Must Match):

Package / Case: 2917 (7343 Metric)
Mounting Type: Surface Mount
Moisture Sensitivity Level: 3 (168 Hours)

Packaging Format: Substitute parts are available in Tape & Reel (TR) format, which is compatible with automated assembly processes. The original part (T520D157M006ASE015) uses a different packaging designation (-) but maintains identical electrical and mechanical specifications.

All identified substitutes meet these criteria without exception. Differences in height (seated maximum) and manufacturer size codes do not affect functional equivalence within the 2917 package footprint constraints.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	ESR @ 100kHz	Temp Range	Lifetime @ 105°C	Package	Height Max (mm)	Product Status	RoHS Status
T520D157M006ASE015	KEMET	KO-CAP® T520	150 µF	6.3 V	15 mOhm	-55°C to 105°C	2000 Hrs	2917	3.10	Obsolete	RoHS Non-Compliant
T520D157M006ATE015	KEMET	KO-CAP® T520	150 µF	6.3 V	15 mOhm	-55°C to 105°C	2000 Hrs	2917	3.10	Active	RoHS3 Compliant
T520V157M006ATE015	KEMET	KO-CAP® T520	150 µF	6.3 V	15 mOhm	-55°C to 105°C	2000 Hrs	2917	1.90	Active	RoHS3 Compliant
6TPE150MF	Panasonic Electronic Components	POSCAP™ TPE	150 µF	6.3 V	15 mOhm	-55°C to 105°C	2000 Hrs	2917	2.00	Active	RoHS3 Compliant
TCJY157M006R0015E	KYOCERA AVX	TCJ	150 µF	6.3 V	15 mOhm	-55°C to 105°C	2000 Hrs	2917	2.00	Active	RoHS3 Compliant
TCJD157M006R0015E	KYOCERA AVX	TCJ	150 µF	6.3 V	15 mOhm	-55°C to 105°C	2000 Hrs	2917	3.10	Active	RoHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: T520D157M006ATE015

The T520D157M006ATE015 is the direct KEMET equivalent with active product status and RoHS3 compliance. This part maintains identical electrical and mechanical specifications to the obsolete T520D157M006ASE015, including the same 3.10 mm seated height. Selection of this part eliminates supply chain risk associated with obsolete components while maintaining design compatibility. Inventory availability is substantial at 1364 pieces.

Secondary Recommendations:

T520V157M006ATE015 (KEMET, Active, RoHS3 Compliant): Offers reduced seated height of 1.90 mm compared to the original 3.10 mm specification. This variant is suitable for applications with height constraints. All electrical parameters remain identical. Inventory: 2159 pieces.

6TPE150MF (Panasonic Electronic Components, Active, RoHS3 Compliant): Provides equivalent electrical performance with a seated height of 2.00 mm. This part is from the POSCAP™ TPE series and represents an alternative manufacturer source. Highest inventory availability at 6638 pieces.

TCJY157M006R0015E (KYOCERA AVX, Active, RoHS3 Compliant): Delivers equivalent specifications with 2.00 mm seated height. Represents a third-source alternative from KYOCERA AVX. Inventory: 716 pieces.

TCJD157M006R0015E (KYOCERA AVX, Active, RoHS3 Compliant): Matches the original 3.10 mm seated height specification. Provides direct dimensional compatibility with the obsolete part. Inventory: 1071 pieces.

All substitute parts carry RoHS3 compliance, addressing regulatory requirements that the original obsolete part does not meet. Selection should prioritize product status (all substitutes are active), compliance certifications, and seated height compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can T520D157M006ATE015 be used as a direct replacement for T520D157M006ASE015?

A: Yes. The T520D157M006ATE015 is electrically and mechanically equivalent to the T520D157M006ASE015. Both parts share identical capacitance (150 µF), voltage rating (6.3 V), ESR (15 mOhm @ 100 kHz), operating temperature range (-55°C to 105°C), and package dimensions (2917 / 7343 Metric). The primary difference is product status: T520D157M006ASE015 is obsolete, while T520D157M006ATE015 is active with RoHS3 compliance.

Q: What is the significance of the height difference between T520V157M006ATE015 (1.90 mm) and the original part (3.10 mm)?

A: The seated height difference reflects a design variant within the same 2917 package footprint. The T520V157M006ATE015 is suitable for applications requiring reduced component height for PCB assembly or enclosure constraints. However, if the original design specifies a maximum height of 3.10 mm, the lower-profile variant must be verified for clearance compatibility. All electrical specifications remain identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts (T520D157M006ATE015, T520V157M006ATE015, 6TPE150MF, TCJY157M006R0015E, and TCJD157M006R0015E) carry RoHS3 compliance. The original T520D157M006ASE015 is RoHS non-compliant. Selection of any substitute part addresses regulatory compliance requirements.

Q: What is the difference between KEMET, Panasonic, and KYOCERA AVX alternatives?

A: All three manufacturers provide 150 µF, 6.3 V molded tantalum polymer capacitors in the 2917 package with 15 mOhm ESR. Differences exist only in series designation (KO-CAP® T520 for KEMET, POSCAP™ TPE for Panasonic, TCJ for KYOCERA AVX) and seated height variants. Electrical performance and reliability specifications are equivalent. Selection may be based on supply chain preference, inventory availability, or existing qualification history.

Q: Can substitute parts be mixed in the same production run?

A: Yes, provided the PCB design accommodates the seated height of the selected part. The 2917 package footprint is standardized across all manufacturers. However, design documentation should specify which part number(s) are approved for production to maintain traceability and consistency.

Q: What is Moisture Sensitivity Level (MSL) 3, and does it affect handling?

A: MSL 3 indicates the component requires controlled storage and handling conditions with a floor life of 168 hours after exposure to ambient conditions. All identified parts carry MSL 3 classification. Components must be stored in dry conditions and baked according to IPC-A-610 standards before reflow soldering if floor life is exceeded.

Q: Is the packaging format (Tape & Reel vs. other formats) important for substitution?

A: Packaging format affects supply chain logistics and automated assembly compatibility but does not impact electrical or mechanical equivalence. The original part uses a different packaging designation (-), while all substitutes are supplied in Tape & Reel (TR) format. TR format is standard for automated pick-and-place assembly. If manual assembly or alternative handling is required, confirm compatibility with assembly processes.

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