CDR35BX334AKUSAT Equivalent & Substitute Parts

Part Overview

The CDR35BX334AKUSAT is a 0.33 µF ±10% 50V ceramic capacitor manufactured by Vishay Vitramon, classified as a military-grade multilayer ceramic capacitor (MLCC) compliant with MIL-PRF-55681. This component is designed for high-reliability applications requiring stable performance across extended temperature ranges. The part is currently active in production with 881 pieces available in stock.

Equivalent and substitute parts are identified when they maintain identical electrical specifications, mechanical dimensions, and performance ratings while potentially differing in packaging configuration or manufacturer source. This reference enables procurement flexibility and supply chain continuity.

Substiute Parts

CDR35BX334AKUSAT

Vishay VitramonIn Stock: 938CDR35BX334AKUSAT Datasheet

Current PartRFQ

CDR35BX334AKWSAT

Vishay VitramonIn Stock: 1723CDR35BX334AKWSAT Datasheet

Parametric EquivalentRFQ

CDR35BX334AKUS7185

KEMETIn Stock: 1322CDR35BX334AKUS7185 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDR35BX334AKUSAT is determined by strict equivalence across the following critical parameters:

• Capacitance value: 0.33 µF
• Tolerance: ±10%
• Voltage rating: 50V
• Temperature coefficient: BX
• Operating temperature range: -55°C to 125°C
• Failure rate classification: S (0.001%)
• Package / case designation: 1825 (4564 Metric)
• Physical dimensions: 0.177" L × 0.252" W × 0.059" thickness
• Mounting type: Surface Mount, MLCC
• Moisture sensitivity level: 1 (Unlimited)
• Military specification compliance: MIL-PRF-55681

The identified substitute parts maintain all electrical and mechanical parameters identical to the main part. Variations in packaging format (Tape & Reel versus bulk) and manufacturer source do not affect functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CDR35BX334AKUSAT, CDR35BX334AKWSAT, and CDR35BX334AKUS7185—are functionally equivalent for circuit applications requiring a 0.33 µF 50V military-grade ceramic capacitor with BX temperature coefficient and MIL-PRF-55681 compliance.

Selection between these parts should be based on:

• Packaging requirements: CDR35BX334AKUSAT is supplied in bulk format, while CDR35BX334AKWSAT and CDR35BX334AKUS7185 are supplied in Tape & Reel format for automated assembly processes.
• Inventory availability: CDR35BX334AKWSAT offers the highest stock level (1706 pieces), followed by CDR35BX334AKUS7185 (1213 pieces) and CDR35BX334AKUSAT (881 pieces).
• Manufacturer source: Both Vishay Vitramon variants (CDR35BX334AKUSAT and CDR35BX334AKWSAT) and the KEMET variant (CDR35BX334AKUS7185) maintain identical electrical and mechanical specifications.
• Compliance status: All parts are RoHS non-compliant and carry ECCN EAR99 classification. The KEMET part is additionally noted as REACH Affected.

Frequently Asked Questions (FAQ)

Q: Can CDR35BX334AKWSAT be used as a direct replacement for CDR35BX334AKUSAT?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications. The primary difference is packaging format: CDR35BX334AKUSAT is supplied in bulk, while CDR35BX334AKWSAT is supplied in Tape & Reel format. Circuit performance is identical.

Q: What is the difference between the Vishay Vitramon and KEMET variants?

A: CDR35BX334AKUS7185 (KEMET) and the Vishay Vitramon parts maintain identical electrical ratings, temperature coefficients, failure rates, and physical dimensions. The KEMET part carries REACH Affected status, whereas the Vishay parts do not list this designation. All three are MIL-PRF-55681 compliant.

Q: Are these parts suitable for automated assembly?

A: CDR35BX334AKWSAT and CDR35BX334AKUS7185 are supplied in Tape & Reel format, which is standard for automated pick-and-place assembly. CDR35BX334AKUSAT is supplied in bulk format and requires manual handling or custom reel preparation for automated processes.

Q: Do all three parts meet military specifications?

A: Yes. All three parts comply with MIL-PRF-55681 and are classified as military-grade components with S-level failure rate (0.001%). Operating temperature range is -55°C to 125°C across all variants.

Q: What is the moisture sensitivity level, and does it affect storage?

A: All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related storage restrictions. Standard component storage conditions apply.

Q: Are there any RoHS or environmental compliance differences?

A: All three parts are RoHS non-compliant. The KEMET part (CDR35BX334AKUS7185) is noted as REACH Affected, while the Vishay Vitramon parts do not carry this designation. All parts carry ECCN EAR99 classification.