CWR11KH335KB Equivalent & Substitute Parts

Part Overview

The CWR11KH335KB is a 3.3 µF molded tantalum capacitor rated for 25 V, manufactured by KEMET in the Military MIL-PRF-55365/8 series. This component is designed for high-reliability applications requiring surface mount tantalum capacitors in the 2312 (6032 Metric) package format. The part is currently active in production with 754 units in stock.

Substitute parts are identified when equivalent electrical performance can be maintained across critical parameters including capacitance, voltage rating, tolerance, package dimensions, and operating temperature range. Alternative sources may be necessary due to inventory availability, lead time requirements, or specific compliance certifications needed for particular applications.

Substiute Parts

CWR11KH335KB

KEMETIn Stock: 838CWR11KH335KB Datasheet

Current PartRFQ

T495C335K025ATE750

KEMETIn Stock: 1978T495C335K025ATE750 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWR11KH335KB is determined by strict equivalence across the following parameters:

• Capacitance value: 3.3 µF (exact match required)
• Voltage rating: 25 V (exact match required)
• Tolerance: ±10% (exact match required)
• Package / Case: 2312 (6032 Metric) (exact match required)
• Physical dimensions: 0.236" L x 0.126" W, height 0.110" max (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• Mounting type: Surface Mount (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The T495C335K025ATE750 meets all substitution criteria. Variations in ESR (Equivalent Series Resistance), series designation, failure rate classification, and RoHS compliance status do not disqualify substitution when all primary electrical and mechanical parameters are equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the CWR11KH335KB and T495C335K025ATE750 are active production parts from KEMET with identical electrical and mechanical specifications for the 3.3 µF, 25 V, 2312 package configuration.

The CWR11KH335KB is designated as a Military series component conforming to MIL-PRF-55365/8 with a B-class failure rate (0.1%). This part is RoHS non-compliant and REACH Affected.

The T495C335K025ATE750 is a General Purpose series component with ROHS3 compliance and REACH Unaffected status. This part features lower ESR (750 mOhm versus 4.6 Ohm) and includes a 2000-hour lifetime specification at 85°C.

Selection between these parts depends on application requirements: military-grade reliability specifications and MIL-PRF compliance favor the CWR11KH335KB, while applications requiring RoHS3 compliance and lower ESR characteristics favor the T495C335K025ATE750. Both parts are electrically and mechanically interchangeable for the specified 3.3 µF, 25 V, 2312 package application.

Frequently Asked Questions (FAQ)

Q: Can the T495C335K025ATE750 replace the CWR11KH335KB in all applications?

A: The T495C335K025ATE750 is electrically and mechanically equivalent for the 3.3 µF, 25 V, 2312 package specification. However, applications requiring MIL-PRF-55365/8 military qualification or specific failure rate certifications must use the CWR11KH335KB. Applications requiring RoHS3 compliance must use the T495C335K025ATE750.

Q: What is the significance of the ESR difference between these parts?

A: The CWR11KH335KB has 4.6 Ohm ESR while the T495C335K025ATE750 has 750 mOhm ESR. Lower ESR reduces heat generation and improves high-frequency performance. Circuit designs sensitive to ESR characteristics should verify compatibility with the specific part selected.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 2312 (6032 Metric) package with identical dimensions: 0.236" L x 0.126" W (6.00mm x 3.20mm) and maximum seated height of 0.110" (2.80mm). Both are surface mount components with identical mounting requirements.

Q: What is the difference in compliance status?

A: The CWR11KH335KB is RoHS non-compliant and REACH Affected. The T495C335K025ATE750 is ROHS3 Compliant and REACH Unaffected. Applications subject to RoHS3 or REACH regulations must use the T495C335K025ATE750.

Q: Do both parts have the same operating temperature range?

A: Yes. Both parts operate across the identical temperature range of -55°C to 125°C with MSL 1 (Unlimited) moisture sensitivity rating.