T520D477M2R5ATE009 Equivalent & Substitute Parts

Part Overview

The T520D477M2R5ATE009 is a 470 µF molded tantalum polymer capacitor manufactured by KEMET in the KO-CAP® T520 series. This surface mount component operates at 2.5 V with an equivalent series resistance (ESR) of 9 mOhm at 100 kHz and is housed in a 2917 (7343 Metric) package. The part is actively produced and ROHS3 compliant. Equivalent and substitute parts are identified based on matching or compatible electrical characteristics, mechanical dimensions, and packaging specifications to ensure functional interchangeability in circuit applications.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	2.5 V
ESR @ 100 kHz	9 mOhm
Package / Case	2917 (7343 Metric)
Type	Molded Tantalum Polymer
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 105°C
Tolerance	±20%
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the T520D477M2R5ATE009 are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents share identical electrical specifications (470 µF, 2.5 V, 9 mOhm ESR) and package dimensions. These parts differ only in packaging format (Tape & Reel versus Cut Tape) or minor height variations that do not affect circuit performance.

Similar Alternatives maintain the same capacitance (470 µF), voltage rating (2.5 V), and package footprint (2917 / 7343 Metric) but feature different ESR values or are from alternative manufacturers. These parts are suitable for applications where ESR tolerance is acceptable within the circuit design margins.

Key substitution parameters:

Capacitance: 470 µF (fixed requirement)
Voltage Rating: 2.5 V (fixed requirement)
Package / Case: 2917 (7343 Metric) (fixed requirement)
ESR @ 100 kHz: 7–15 mOhm (acceptable range)
Operating Temperature: -55°C ~ 105°C (fixed requirement)
Type: Molded Tantalum Polymer (fixed requirement)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 100 kHz	Package	Height (Max)	Packaging Format	Series
T520D477M2R5ATE009	KEMET	470 µF	2.5 V	9 mOhm	2917 (7343)	0.122" (3.10 mm)	Tape & Reel	KO-CAP® T520
T520V477M2R5ATE009	KEMET	470 µF	2.5 V	9 mOhm	2917 (7343)	0.075" (1.90 mm)	Cut Tape & Digi-Reel®	KO-CAP® T520
T520D477M2R5ATE007	KEMET	470 µF	2.5 V	7 mOhm	2917 (7343)	0.122" (3.10 mm)	Tape & Reel	KO-CAP® T520
T520V477M2R5ATE012	KEMET	470 µF	2.5 V	12 mOhm	2917 (7343)	0.075" (1.90 mm)	Tape & Reel	KO-CAP® T520
T520V477M2R5ATE015	KEMET	470 µF	2.5 V	15 mOhm	2917 (7343)	0.075" (1.90 mm)	Tape & Reel	KO-CAP® T520
T528Z477M2R5ATE008	KEMET	470 µF	2.5 V	8 mOhm	2917 (7343)	0.067" (1.70 mm)	Cut Tape & Digi-Reel®	KO-CAP® T528
2R5TPE470M9	Panasonic Electronic Components	470 µF	2.5 V	9 mOhm	2917 (7343)	0.079" (2.00 mm)	Cut Tape & Digi-Reel®	POSCAP™ TPE
2R5TPF470M9L	Panasonic Electronic Components	470 µF	2.5 V	9 mOhm	2917 (7343)	0.118" (3.00 mm)	Tape & Reel	POSCAP™ TPF
2R5TPF680ML	Panasonic Electronic Components	680 µF	2.5 V	10 mOhm	2917 (7343)	0.118" (3.00 mm)	Cut Tape & Digi-Reel®	POSCAP™ TPF

Engineering Selection Recommendations

Direct Equivalent Selection:

The T520V477M2R5ATE009 is the primary direct equivalent, offering identical electrical performance (470 µF, 2.5 V, 9 mOhm ESR) with the same KEMET KO-CAP® T520 series designation. This part is available in Cut Tape & Digi-Reel® packaging and features a reduced height of 0.075" (1.90 mm) compared to the original 0.122" (3.10 mm), making it suitable for space-constrained applications. Both parts are ROHS3 compliant and REACH unaffected.

Alternative KEMET Options:

The T520D477M2R5ATE007 provides lower ESR (7 mOhm) while maintaining the same 0.122" height and Tape & Reel packaging as the original part. This option is suitable for applications requiring reduced impedance characteristics.

The T520V477M2R5ATE012 and T520V477M2R5ATE015 offer higher ESR values (12 mOhm and 15 mOhm respectively) with reduced height (0.075"). These parts are appropriate for general-purpose applications where ESR tolerance is not critical.

The T528Z477M2R5ATE008 from the KO-CAP® T528 series delivers 8 mOhm ESR with the lowest profile height of 0.067" (1.70 mm), suitable for ultra-compact designs.

Cross-Manufacturer Alternatives:

The Panasonic 2R5TPE470M9 (POSCAP™ TPE series) provides identical electrical specifications (470 µF, 2.5 V, 9 mOhm ESR) with a height of 0.079" (2.00 mm). This part is ROHS3 compliant and offers high inventory availability.

The Panasonic 2R5TPF470M9L (POSCAP™ TPF series) matches the original part's electrical performance with a height of 0.118" (3.00 mm) and Tape & Reel packaging.

Non-Equivalent Alternative:

The Panasonic 2R5TPF680ML differs in capacitance (680 µF versus 470 µF) and is not a direct substitute. This part is listed only for reference in applications where higher capacitance is acceptable.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and surface mount compatibility with the 2917 (7343 Metric) footprint.

Frequently Asked Questions (FAQ)

Q: Can I substitute T520V477M2R5ATE009 for T520D477M2R5ATE009 in my circuit?

A: Yes. Both parts share identical electrical specifications (470 µF, 2.5 V, 9 mOhm ESR) and the same 2917 (7343 Metric) package footprint. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and height (0.075" versus 0.122"). The reduced height of the T520V variant makes it suitable for space-constrained PCB layouts.

Q: What is the significance of ESR differences among substitute parts?

A: ESR (Equivalent Series Resistance) affects impedance characteristics and ripple current handling. The original part specifies 9 mOhm. Alternatives range from 7 mOhm to 15 mOhm. Lower ESR values (7–8 mOhm) reduce impedance and heat generation, beneficial for high-frequency applications. Higher ESR values (12–15 mOhm) are acceptable in general-purpose circuits where impedance tolerance is not critical. Circuit design margins determine acceptable ESR variation.

Q: Are Panasonic POSCAP™ parts compatible with KEMET KO-CAP® designs?

A: Yes, provided electrical specifications match. The Panasonic 2R5TPE470M9 and 2R5TPF470M9L both deliver 470 µF, 2.5 V, and 9 mOhm ESR, matching the original KEMET part. All three parts are ROHS3 compliant, REACH unaffected, and use the same 2917 (7343 Metric) footprint. Height variations (0.079" to 0.122") are within typical PCB design tolerances.

Q: Why is 2R5TPF680ML listed as a substitute if it has different capacitance?

A: The 2R5TPF680ML (680 µF) is not a direct substitute for the 470 µF requirement. It is listed only as a reference for applications where higher capacitance is acceptable and circuit design permits the substitution. Direct substitution requires matching 470 µF capacitance.

Q: What packaging format should I select for automated assembly?

A: Tape & Reel (TR) packaging is standard for automated pick-and-place equipment. The original T520D477M2R5ATE009 uses Tape & Reel format. Alternatives in Tape & Reel include T520D477M2R5ATE007, T520V477M2R5ATE012, T520V477M2R5ATE015, and 2R5TPF470M9L. Cut Tape & Digi-Reel® format (T520V477M2R5ATE009, T528Z477M2R5ATE008, 2R5TPE470M9) is suitable for lower-volume or manual assembly operations.

Q: Are all substitute parts compliant with RoHS and REACH regulations?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original T520D477M2R5ATE009.

Q: What is the operating temperature range for substitute parts?

A: All KEMET and Panasonic substitute parts operate across -55°C to 105°C, identical to the original part. Lifetime specifications at 105°C are 2000 hours for all parts except T528Z477M2R5ATE008, which does not specify lifetime data.

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