T520T336M008ATE080 Equivalent & Substitute Parts

Part Overview

The T520T336M008ATE080 is a 33 µF molded tantalum polymer capacitor manufactured by KEMET in the KO-CAP® T520 series. This surface mount component operates at 8 V rated voltage with 80 mOhm equivalent series resistance at 100 kHz, housed in a 1411 (3528 Metric) package. The part is Active in product status and ROHS3 compliant. Substitute parts are identified when design requirements permit voltage upgrades, ESR optimization, or extended operating temperature ranges while maintaining core electrical and mechanical compatibility.

Substiute Parts

Key Parameters

Parameter Value
Capacitance 33 µF
Voltage - Rated 8 V
ESR @ 100 kHz 80 mOhm
Package / Case 1411 (3528 Metric)
Mounting Type Surface Mount
Operating Temperature Range -55°C ~ 105°C
Type Molded Tantalum Polymer
Tolerance ±20%
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the T520T336M008ATE080 is determined by the following criteria:

Voltage Rating: Substitute parts must operate at the rated voltage of 8 V or higher. Voltage derating is permissible; lower voltage ratings are not acceptable.

Capacitance: All substitute parts must maintain 33 µF capacitance value.

Package / Case: All substitute parts must use the 1411 (3528 Metric) package to ensure mechanical and PCB layout compatibility.

Mounting Type: Surface mount configuration is required for all substitutes.

ESR Characteristics: ESR values of 80 mOhm or lower are acceptable; higher ESR values are not substitutable.

Operating Temperature: Extended temperature ranges (-55°C ~ 125°C) are acceptable upgrades; reduced ranges are not substitutable.

Compliance: All substitute parts must maintain ROHS3 compliance and Active product status.

Parameter Comparison

Parameter T520T336M008ATE080 (Main) T520T336M010ATE080 (Upgrade) T525T336M010ATE080 (Upgrade) T520B336M008ATE040 (Similar)
Capacitance 33 µF 33 µF 33 µF 33 µF
Voltage - Rated 8 V 10 V 10 V 8 V
ESR @ 100 kHz 80 mOhm 80 mOhm 80 mOhm 40 mOhm
Package / Case 1411 (3528 Metric) 1411 (3528 Metric) 1411 (3528 Metric) 1411 (3528 Metric)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Operating Temperature Range -55°C ~ 105°C -55°C ~ 105°C -55°C ~ 125°C -55°C ~ 105°C
Type Molded Tantalum Polymer Molded Tantalum Polymer Molded Tantalum Polymer Molded Tantalum Polymer
Tolerance ±20% ±20% ±20% ±20%
Series KO-CAP® T520 KO-CAP® T520 KO-CAP® T525 KO-CAP® T520
RoHS Status ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
Product Status Active Active Active Active

Engineering Selection Recommendations

T520T336M010ATE080 (Upgrade Option): This part provides a voltage rating upgrade from 8 V to 10 V while maintaining identical ESR, package, and operating temperature specifications. Selection is appropriate when circuit design permits higher voltage margin or when supply voltage tolerance requires additional headroom. Both parts are Active status with ROHS3 compliance.

T525T336M010ATE080 (Extended Temperature Option): This part offers a 10 V voltage rating and extended operating temperature range to 125°C compared to the standard 105°C maximum. The KO-CAP® T525 series provides enhanced thermal performance. Selection is appropriate for applications requiring operation in elevated ambient conditions or with thermal cycling requirements. Active status and ROHS3 compliance are maintained.

T520B336M008ATE040 (Lower ESR Option): This part maintains the 8 V voltage rating and 1411 package but reduces ESR to 40 mOhm at 100 kHz. The increased height (2.00 mm seated versus 1.20 mm) must be verified against PCB layout constraints. Selection is appropriate when lower impedance is required for ripple current or transient response optimization. Active status and ROHS3 compliance are maintained.

Frequently Asked Questions (FAQ)

Q: Can T520T336M010ATE080 be used as a direct replacement for T520T336M008ATE080?

A: Yes. The T520T336M010ATE080 maintains identical capacitance (33 µF), ESR (80 mOhm @ 100 kHz), package (1411), and operating temperature range (-55°C ~ 105°C). The 10 V rating provides voltage margin above the 8 V requirement and is electrically compatible.

Q: What is the primary difference between T520T336M010ATE080 and T525T336M010ATE080?

A: Both parts share 33 µF capacitance, 10 V rating, 80 mOhm ESR, and 1411 package. The T525T336M010ATE080 extends the maximum operating temperature to 125°C (versus 105°C for T520T336M010ATE080) and belongs to the KO-CAP® T525 series. Selection depends on thermal requirements.

Q: Why is T520B336M008ATE040 listed as a similar part rather than a direct upgrade?

A: The T520B336M008ATE040 reduces ESR to 40 mOhm but increases seated height to 2.00 mm (compared to 1.20 mm for the main part). This dimensional change requires PCB layout verification. The lower ESR provides performance benefits but introduces a mechanical constraint.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All listed substitute parts are supplied in Tape & Reel (TR) packaging and use the 1411 (3528 Metric) surface mount package, ensuring compatibility with standard pick-and-place assembly processes.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and Active product status. Moisture Sensitivity Level (MSL) is 3 (168 Hours) for all parts.

Q: Can T520B336M008ATE040 be used in applications requiring 80 mOhm ESR?

A: No. The T520B336M008ATE040 provides 40 mOhm ESR, which is lower than the 80 mOhm specification. While lower ESR generally improves performance, applications with specific ESR requirements must use parts matching those specifications.

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