TRJB335M025RRJ Equivalent & Substitute Parts

Part Overview

The TRJB335M025RRJ is a 3.3 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 25 V operation. This component is classified as Active product status and is designed for general-purpose surface mount applications in the 1411 (3528 Metric) package footprint. Tantalum capacitors of this specification are essential in power supply filtering, signal coupling, and decoupling circuits where compact form factor and high capacitance density are required. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory sources when the primary part becomes unavailable.

Substiute Parts

TRJB335M025RRJ

KYOCERA AVXIn Stock: 2365TRJB335M025RRJ Datasheet

Current PartRFQ

T491B335M025AT

KEMETIn Stock: 48537T491B335M025AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TRJB335M025RRJ is determined by strict alignment of the following critical parameters:

• Capacitance Value: 3.3 µF (exact match required)
• Voltage Rating: 25 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match or wider range acceptable)
• Type: Molded Tantalum (exact match required)
• Compliance: ROHS3 Compliant, MSL 1 (Unlimited)

The substitute part T491B335M025AT from KEMET meets all mandatory electrical and mechanical parameters. Both parts share identical capacitance, voltage rating, tolerance, package footprint, and thermal operating range. Physical dimensions (0.138" L x 0.110" W, 4.60mm x 2.80mm) and maximum seated height (0.083", 2.10mm) are identical, ensuring direct PCB compatibility without layout modification.

Parameter Comparison

Engineering Selection Recommendations

Both the TRJB335M025RRJ and T491B335M025AT are Active product status components with full ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity classification. The electrical and mechanical specifications are identical across all critical parameters. The KEMET T491B335M025AT exhibits a marginally lower ESR value (4.6 Ohm versus 3.74 Ohm), which represents a performance advantage in high-frequency filtering applications and thermal management. Both parts are suitable for direct substitution in applications requiring 3.3 µF, 25 V molded tantalum capacitors in the 1411 package footprint. Selection between these parts should be based on inventory availability, lead time, and cost considerations, as functional equivalence is established.

Frequently Asked Questions (FAQ)

Q: Can T491B335M025AT be used as a direct replacement for TRJB335M025RRJ?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical capacitance (3.3 µF), voltage rating (25 V), tolerance (±20%), package footprint (1411 / 3528 Metric), physical dimensions, and operating temperature range (-55°C ~ 125°C). No PCB layout or schematic modifications are required.

Q: Are there any differences in ESR between these parts?

A: The KEMET T491B335M025AT has a lower ESR of 4.6 Ohm compared to the KYOCERA AVX TRJB335M025RRJ at 3.74 Ohm. This difference is negligible for most general-purpose applications but may provide marginal benefits in high-frequency filtering or thermally demanding environments.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TRJB335M025RRJ and T491B335M025AT are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity classification. Both are Active product status components suitable for current design implementations.

Q: What is the significance of the 1411 package designation?

A: The 1411 package (3528 Metric) is the standardized surface mount footprint for these tantalum capacitors. Both parts use this identical package, ensuring compatibility with existing PCB designs without layout modification or rework.

Q: Can these parts be used interchangeably in production?

A: Yes. The electrical specifications, mechanical dimensions, and compliance certifications are identical. Both parts are suitable for interchangeable use in manufacturing environments where supply chain flexibility is required.