KEMET T520D227M2R5ATE007 Equivalent & Substitute Parts

Part Overview

The KEMET T520D227M2R5ATE007 is a 220 µF molded tantalum polymer capacitor rated at 2.5 V with a 2917 (7343 Metric) package footprint. This component operates across the temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C. The part is classified as Active and maintains full RoHS3 compliance with REACH Unaffected status.

Substitute parts are identified when electrical parameters (capacitance, voltage rating, ESR, temperature range, and lifetime) and mechanical specifications (package, mounting type, dimensions) remain compatible with the original design requirements. Alternative selections may be necessary due to inventory availability, performance optimization, or design margin requirements.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	2.5 V
ESR @ 100 kHz	7 mOhm
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 105°C
Lifetime @ 105°C	2000 Hours
Type	Molded Tantalum Polymer
Tolerance	±20%
MSL Rating	3 (168 Hours)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution relationships for the T520D227M2R5ATE007 are established based on the following criteria:

Direct Electrical Equivalence: Parts maintaining identical capacitance (220 µF), voltage rating (2.5 V), ESR (7 mOhm @ 100 kHz), temperature range (-55°C to 105°C), and lifetime (2000 Hrs @ 105°C) specifications are classified as direct substitutes.

Mechanical Compatibility: All substitute parts must share the same package designation (2917 / 7343 Metric), surface mount mounting type, and footprint compatibility.

Voltage Upgrade Substitutes: Parts with higher voltage ratings (4 V or 6.3 V) while maintaining all other electrical and mechanical parameters are suitable for applications where design margin or circuit voltage tolerance permits higher-rated components.

ESR Variance Tolerance: Parts with minor ESR variations (7 mOhm to 9 mOhm @ 100 kHz) at identical voltage and capacitance ratings are acceptable where ripple current and thermal performance specifications allow.

Compliance Consistency: All substitute parts maintain RoHS3 compliance, REACH Unaffected status, and identical MSL ratings (3 / 168 Hours).

Parameter Comparison

Part Number	Capacitance	Voltage Rating	ESR @ 100 kHz	Package	Height (Max)	Operating Temp	Lifetime @ 105°C	Substitution Type
T520D227M2R5ATE007	220 µF	2.5 V	7 mOhm	2917 (7343)	0.122" (3.10 mm)	-55°C to 105°C	2000 Hrs	Main Part
T520V227M2R5ATE007	220 µF	2.5 V	7 mOhm	2917 (7343)	0.075" (1.90 mm)	-55°C to 105°C	2000 Hrs	Direct Equivalent
T520V227M004ATE007	220 µF	4 V	7 mOhm	2917 (7343)	0.075" (1.90 mm)	-55°C to 105°C	2000 Hrs	Voltage Upgrade
T520V227M006ATE007	220 µF	6.3 V	7 mOhm	2917 (7343)	0.075" (1.90 mm)	-55°C to 105°C	2000 Hrs	Voltage Upgrade
T520V227M2R5ATE009	220 µF	2.5 V	9 mOhm	2917 (7343)	0.075" (1.90 mm)	-55°C to 105°C	2000 Hrs	ESR Variant

Engineering Selection Recommendations

T520V227M2R5ATE007 (Direct Equivalent): This part provides identical electrical performance to the main part with reduced seated height (1.90 mm vs. 3.10 mm). Selection is appropriate for space-constrained PCB layouts while maintaining all electrical specifications. Active product status and full compliance certifications apply.

T520V227M004ATE007 (Voltage Upgrade - 4 V): This substitute offers higher voltage rating with identical capacitance and ESR characteristics. Selection is suitable for circuits operating below 4 V where additional design margin is required. Reduced height (1.90 mm) provides layout flexibility. Active product status and compliance certifications maintained.

T520V227M006ATE007 (Voltage Upgrade - 6.3 V): This substitute provides maximum voltage headroom at 6.3 V rating with identical capacitance and ESR. Selection is appropriate for applications requiring enhanced voltage tolerance or where circuit voltage may exceed 2.5 V. Reduced height (1.90 mm) and Cut Tape / Digi-Reel packaging option available. Active product status and compliance certifications maintained.

T520V227M2R5ATE009 (ESR Variant - 9 mOhm): This part maintains 2.5 V rating and 220 µF capacitance with slightly elevated ESR (9 mOhm vs. 7 mOhm @ 100 kHz). Selection is acceptable where ripple current specifications and thermal dissipation allow minor ESR increase. Reduced height (1.90 mm) and active product status apply.

All substitute parts maintain RoHS3 compliance, REACH Unaffected status, and MSL 3 (168 Hours) rating consistent with the main part.

Frequently Asked Questions (FAQ)

Q: Can T520V227M2R5ATE007 replace T520D227M2R5ATE007 in existing designs?

A: Yes. Both parts share identical electrical specifications (220 µF, 2.5 V, 7 mOhm ESR, -55°C to 105°C, 2000 Hrs @ 105°C). The primary difference is seated height: T520V is 1.90 mm versus T520D at 3.10 mm. PCB layout and clearance requirements must accommodate the reduced height. Footprint and mounting type remain identical.

Q: What is the difference between direct substitutes and voltage upgrade substitutes?

A: Direct substitutes (T520V227M2R5ATE007) maintain all electrical parameters including voltage rating. Voltage upgrade substitutes (T520V227M004ATE007 at 4 V and T520V227M006ATE007 at 6.3 V) provide higher voltage ratings while preserving capacitance and ESR. Voltage upgrades are suitable only when circuit voltage remains below the substitute's rating and design margin is acceptable.

Q: Is the ESR variant T520V227M2R5ATE009 suitable for high-ripple-current applications?

A: The ESR variant operates at 9 mOhm versus 7 mOhm for the main part. Selection depends on ripple current specifications and thermal dissipation requirements. Higher ESR results in increased power dissipation. Verify that ripple current limits and temperature rise remain within acceptable design margins.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH Unaffected status identical to the main part T520D227M2R5ATE007.

Q: What is the impact of reduced height on PCB assembly?

A: Substitute parts with 1.90 mm seated height (versus 3.10 mm for the main part) provide improved PCB layout density and clearance for adjacent components. Assembly processes and reflow profiles remain compatible with standard surface mount procedures. Verify PCB design clearances and component placement constraints.

Q: Can higher voltage-rated substitutes be used in 2.5 V circuits?

A: Yes. T520V227M004ATE007 (4 V) and T520V227M006ATE007 (6.3 V) are suitable for circuits operating at 2.5 V or below. Higher voltage ratings provide design margin and protection against transient overvoltage. No electrical performance degradation occurs when operating below the component's rated voltage.

Q: What packaging options are available for these substitutes?

A: T520D227M2R5ATE007, T520V227M2R5ATE007, T520V227M004ATE007, and T520V227M2R5ATE009 are supplied in Tape & Reel (TR) packaging. T520V227M006ATE007 is available in Cut Tape (CT) and Digi-Reel® packaging. Verify packaging compatibility with assembly equipment and procurement requirements.

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