ECS-H1AD336R Equivalent & Substitute Parts

Part Overview

The ECS-H1AD336R is a 33 µF molded tantalum capacitor rated at 10 V with ±20% tolerance, manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) package. This part is classified as obsolete and is no longer in active production. Finding equivalent or substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this capacitor specification.

Substiute Parts

ECS-H1AD336R

Panasonic Electronic ComponentsIn Stock: 1038ECS-H1AD336R Datasheet

Current PartRFQ

TAJD336M010RNJ

KYOCERA AVXIn Stock: 3870TAJD336M010RNJ Datasheet

DirectRFQ

TAJD336K020RNJ

KYOCERA AVXIn Stock: 1871TAJD336K020RNJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECS-H1AD336R is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance value: 33 µF (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required for PCB compatibility)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Secondary Compatibility Parameters:

• Voltage Rating: Must be equal to or greater than 10 V
• Tolerance: ±20% or tighter acceptable
• Type: Molded Tantalum (material consistency)

The substitute parts listed below meet all primary criteria and maintain compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

TAJD336M010RNJ (Direct Substitute - Recommended for Pin-Compatible Replacement)

This part is the primary direct substitute for the ECS-H1AD336R. It matches all critical electrical parameters (33 µF, 10 V, ±20% tolerance) and maintains identical package dimensions and mounting specifications. The TAJD336M010RNJ is manufactured by KYOCERA AVX and carries Active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The ESR specification of 1.1 Ohm is provided, offering improved circuit performance characterization compared to the original part.

TAJD336K020RNJ (Similar Substitute - Higher Voltage Rating)

This part provides a higher voltage rating (20 V) while maintaining the same 33 µF capacitance and 2917 package footprint. The tolerance is tighter at ±10%, and the ESR is lower at 900 mOhm, resulting in superior electrical characteristics. This part is suitable for applications where the 10 V rating is not a strict requirement and where the additional voltage margin and improved tolerance provide design benefits. KYOCERA AVX manufactures this part with Active status and ROHS3 compliance.

Both substitute parts are available in active production with established supply chains and regulatory compliance certifications, making them suitable for new designs and legacy system support.

Frequently Asked Questions (FAQ)

Q: Can TAJD336M010RNJ be used as a direct replacement for ECS-H1AD336R?

A: Yes. The TAJD336M010RNJ matches all primary substitution criteria: 33 µF capacitance, 10 V voltage rating, ±20% tolerance, 2917 package, and surface mount configuration. Physical dimensions and operating temperature range are identical. This is the recommended direct substitute.

Q: What is the difference between TAJD336M010RNJ and TAJD336K020RNJ?

A: The primary differences are voltage rating (10 V vs. 20 V), tolerance (±20% vs. ±10%), and ESR (1.1 Ohm vs. 900 mOhm). Both maintain the same 33 µF capacitance and 2917 package. The TAJD336K020RNJ provides higher voltage margin and tighter tolerance specifications.

Q: Are the physical dimensions compatible with the original PCB layout?

A: Both substitute parts use the identical 2917 (7343 Metric) package with the same length and width (0.287" x 0.169"). The seated height differs slightly (0.122" vs. 0.118"), which is within typical PCB design tolerances for surface mount components.

Q: What is the significance of the RoHS compliance difference?

A: The original ECS-H1AD336R is RoHS non-compliant, while both substitute parts are ROHS3 compliant. For new designs or systems subject to RoHS regulations, the KYOCERA AVX substitutes ensure regulatory compliance. For legacy system repairs, either part may be acceptable depending on application requirements.

Q: Can TAJD336K020RNJ be used in a circuit designed for 10 V rated capacitors?

A: Yes. A 20 V rated capacitor can be used in a 10 V circuit. The higher voltage rating provides additional safety margin and does not negatively impact circuit performance. The capacitance value and tolerance remain compatible with the original design.

Q: What is ESR and why does it matter?

A: Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor. Lower ESR values (900 mOhm in TAJD336K020RNJ vs. 1.1 Ohm in TAJD336M010RNJ) result in reduced heat generation and improved high-frequency performance. The original part does not specify ESR, so either substitute provides measurable performance characterization.

Q: Are these parts available in different packaging formats?

A: Yes. TAJD336M010RNJ is available in Tape & Reel (TR) packaging. TAJD336K020RNJ is available in Cut Tape (CT) & Digi-Reel® packaging. Both formats are suitable for automated assembly processes.