Equivalent & Substitute Parts for T520D227M010ASE040

Part Overview

The KEMET T520D227M010ASE040 is a 220 µF molded tantalum polymer capacitor rated at 10 V with 40 mOhm equivalent series resistance at 100 kHz, housed in a 2917 (7343 Metric) surface mount package. This part is classified as obsolete. Due to its discontinued status, equivalent and substitute parts from active product lines are necessary for ongoing design support, production continuity, and component sourcing.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	10 V
ESR @ 100 kHz	40 mOhm
Package / Case	2917 (7343 Metric)
Type	Molded Tantalum Polymer
Tolerance	±20%
Operating Temperature Range	-55°C to 105°C
Mounting Type	Surface Mount
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the T520D227M010ASE040 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Capacitance: 220 µF (exact match required)
Voltage Rating: 10 V (exact match required)
ESR @ 100 kHz: 40 mOhm (exact match required)
Package / Case: 2917 (7343 Metric) (exact match required)
Type: Molded Tantalum Polymer (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -55°C to 105°C (exact match required)
Mounting Type: Surface Mount (exact match required)
Moisture Sensitivity Level: 3 (exact match required)

Substitute Categories:

Direct Manufacturer Substitutes (KEMET KO-CAP® T520 Series): Parts with identical electrical and mechanical specifications, differing only in packaging format or product status. These include T520D227M010ATE040, T520V227M010ATE040, and T520V227M010ATE0407280. All are active products with RoHS3 compliance.

Direct Cross-Manufacturer Substitutes (KYOCERA AVX TCJ Series): TCJY227M010R0040, TCJY227M010R0040E, TCJD227M010R0040, TCJD227M010R0040E, and TCJD227M010S0040 meet all electrical and mechanical parameters. These are active products with RoHS3 compliance.

Similar Substitute (Vishay Sprague vPolyTan™ T55 Series): T55D227M010C0025 matches all parameters except ESR, which is 25 mOhm @ 100 kHz instead of 40 mOhm. This part is included as a similar substitute due to lower ESR performance in the same package.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	ESR @ 100 kHz	Package	Height (Max)	Product Status	RoHS Status
T520D227M010ASE040	KEMET	KO-CAP® T520	220 µF	10 V	40 mOhm	2917 (7343)	0.122" (3.10 mm)	Obsolete	Non-compliant
T520D227M010ATE040	KEMET	KO-CAP® T520	220 µF	10 V	40 mOhm	2917 (7343)	0.122" (3.10 mm)	Active	RoHS3 Compliant
T520V227M010ATE040	KEMET	KO-CAP® T520	220 µF	10 V	40 mOhm	2917 (7343)	0.075" (1.90 mm)	Active	RoHS3 Compliant
T520V227M010ATE0407280	KEMET	KO-CAP® T520	220 µF	10 V	40 mOhm	2917 (7343)	0.075" (1.90 mm)	Active	RoHS3 Compliant
TCJD227M010R0040	KYOCERA AVX	TCJ	220 µF	10 V	40 mOhm	2917 (7343)	0.122" (3.10 mm)	Active	RoHS3 Compliant
TCJD227M010R0040E	KYOCERA AVX	TCJ	220 µF	10 V	40 mOhm	2917 (7343)	0.122" (3.10 mm)	Active	RoHS3 Compliant
TCJD227M010S0040	KYOCERA AVX	TCJ	220 µF	10 V	40 mOhm	2917 (7343)	0.122" (3.10 mm)	Active	RoHS3 Compliant
TCJY227M010R0040	KYOCERA AVX	TCJ	220 µF	10 V	40 mOhm	2917 (7343)	0.079" (2.00 mm)	Active	RoHS3 Compliant
TCJY227M010R0040E	KYOCERA AVX	TCJ	220 µF	10 V	40 mOhm	2917 (7343)	0.079" (2.00 mm)	Active	RoHS3 Compliant
T55D227M010C0025	Vishay Sprague	vPolyTan™ T55	220 µF	10 V	25 mOhm	2917 (7343)	0.122" (3.10 mm)	Active	RoHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

Select from KEMET KO-CAP® T520 series active parts (T520D227M010ATE040, T520V227M010ATE040, T520V227M010ATE0407280) or KYOCERA AVX TCJ series parts (TCJD227M010R0040, TCJD227M010R0040E, TCJD227M010S0040, TCJY227M010R0040, TCJY227M010R0040E). All maintain 40 mOhm ESR @ 100 kHz and are RoHS3 compliant, addressing the non-compliance status of the obsolete original part.

Height Considerations:

KEMET T520V and KYOCERA AVX TCJY variants offer reduced seated height (0.075" to 0.079" maximum) compared to the original 0.122" specification. KEMET T520D and KYOCERA AVX TCJD variants maintain the original 0.122" height. Verify PCB layout clearance requirements before selection.

For Lower ESR Performance:

T55D227M010C0025 (Vishay Sprague vPolyTan™ T55) provides 25 mOhm ESR @ 100 kHz, a 37.5% reduction from the 40 mOhm specification. This part is suitable for applications requiring improved ESR performance within the same package footprint and electrical ratings.

Compliance and Availability:

All recommended substitutes are active products with RoHS3 compliance, eliminating regulatory risk associated with the obsolete, non-compliant original part. Inventory availability varies; verify stock levels with component distributors for production requirements.

Frequently Asked Questions (FAQ)

Q: Can T520V227M010ATE040 replace T520D227M010ASE040 directly?

A: Yes. Both parts are KEMET KO-CAP® T520 series with identical electrical specifications (220 µF, 10 V, 40 mOhm ESR @ 100 kHz, ±20% tolerance, -55°C to 105°C operating range). The primary difference is seated height: T520V is 0.075" maximum versus T520D at 0.122" maximum. Verify PCB clearance before substitution.

Q: What is the difference between TCJD and TCJY variants from KYOCERA AVX?

A: Both TCJD and TCJY series meet all electrical parameters (220 µF, 10 V, 40 mOhm ESR @ 100 kHz). The difference is seated height: TCJD is 0.122" maximum (matching the original part), while TCJY is 0.079" maximum. Select based on available PCB clearance.

Q: Why is T55D227M010C0025 listed as a similar substitute rather than a direct substitute?

A: T55D227M010C0025 differs in ESR specification: 25 mOhm @ 100 kHz versus the required 40 mOhm. This lower ESR provides improved performance in applications sensitive to impedance characteristics. Use only if circuit design permits lower ESR operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts are RoHS3 compliant. The original T520D227M010ASE040 is RoHS non-compliant. Substitution addresses regulatory compliance requirements for new designs and production.

Q: What packaging formats are available for the substitute parts?

A: KEMET T520D227M010ATE040 is supplied in Cut Tape (CT) & Digi-Reel® format. KEMET T520V227M010ATE040, T520V227M010ATE0407280, and all KYOCERA AVX TCJ series parts are supplied in Tape & Reel (TR) format. Verify packaging requirements with procurement specifications.

Q: Can I use TCJD227M010R0040E instead of TCJD227M010R0040?

A: Yes. Both parts are KYOCERA AVX TCJ series with identical electrical and mechanical specifications. The "E" suffix indicates a specific manufacturing or qualification variant. Both are functionally equivalent for the application.

Q: What is the moisture sensitivity level for all substitute parts?

A: All substitute parts maintain MSL 3 (168 Hours) rating, identical to the original part. Storage and handling procedures remain unchanged.

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