CDR35BX474AKMSAT Equivalent & Substitute Parts

Part Overview

The CDR35BX474AKMSAT is a 0.47 µF ±10% 50V ceramic capacitor manufactured by Vishay Vitramon, classified under the military-grade CDR35 series compliant with MIL-PRF-55681. This surface-mount multilayer ceramic capacitor (MLCC) is designed for high-reliability applications requiring stable performance across extended temperature ranges (-55°C to 125°C). The part is currently active in production with 680 units available in inventory. Equivalent substitute parts may be required due to supply chain constraints, inventory availability, or specific compliance requirements for end-use applications.

Substiute Parts

CDR35BX474AKMSAT

Vishay VitramonIn Stock: 759CDR35BX474AKMSAT Datasheet

Current PartRFQ

CDR35BX474AKUS

KYOCERA AVXIn Stock: 1184CDR35BX474AKUS Datasheet

Parametric EquivalentRFQ

CDR35BX474AKUS

KYOCERA AVXIn Stock: 1184CDR35BX474AKUS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDR35BX474AKMSAT are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match Exactly):

• Capacitance: 0.47 µF
• Tolerance: ±10%
• Voltage Rating: 50V
• Temperature Coefficient: BX
• Operating Temperature Range: -55°C to 125°C
• Failure Rate: S (0.001%)

Mechanical Parameters (Must Match Exactly):

• Package / Case: 1825 (4564 Metric)
• Mounting Type: Surface Mount, MLCC
• Physical Dimensions: 0.177" L x 0.252" W (4.50mm x 6.40mm)
• Thickness (Max): 0.059" (1.50mm)
• Moisture Sensitivity Level: 1 (Unlimited)

Series Compliance:

• Military-grade classification per MIL-PRF-55681
• CDR35 base product number series

The substitute part CDR35BX474AKUS, manufactured by KYOCERA AVX, meets all electrical and mechanical parameter requirements for direct substitution. Both parts share identical capacitance, voltage rating, temperature coefficient, operating temperature range, failure rate classification, package dimensions, and moisture sensitivity rating.

Parameter Comparison

Engineering Selection Recommendations

Both the CDR35BX474AKMSAT and CDR35BX474AKUS are electrically and mechanically equivalent for direct substitution in high-reliability military applications. Selection between these parts should be based on the following factors:

Primary Part (CDR35BX474AKMSAT - Vishay Vitramon):

• ROHS3 compliant, suitable for applications with strict environmental regulations
• Active product status with established supply chain
• 680 units currently in stock

Substitute Part (CDR35BX474AKUS - KYOCERA AVX):

• RoHS non-compliant; applications must not require RoHS certification
• REACH Affected status; end-use applications must evaluate regulatory impact
• Higher inventory availability (1111 units)
• Supplied in Tape & Reel packaging format

For applications requiring RoHS3 compliance, the CDR35BX474AKMSAT is the appropriate selection. For applications where RoHS compliance is not mandated and REACH status is acceptable, the CDR35BX474AKUS provides equivalent electrical and mechanical performance with greater inventory availability.

Frequently Asked Questions (FAQ)

Q: Can CDR35BX474AKUS be used as a direct replacement for CDR35BX474AKMSAT?

A: Yes, the CDR35BX474AKUS is a direct electrical and mechanical equivalent. Both parts share identical capacitance (0.47 µF), voltage rating (50V), temperature coefficient (BX), operating temperature range (-55°C to 125°C), failure rate classification (S), package dimensions (1825 / 4564 Metric), and moisture sensitivity level (1). The primary difference is RoHS compliance status and packaging format.

Q: What is the impact of RoHS non-compliance for the KYOCERA AVX part?

A: RoHS non-compliance affects applications subject to European Union Restriction of Hazardous Substances regulations. Applications destined for EU markets or requiring RoHS certification must use the ROHS3-compliant CDR35BX474AKMSAT. Applications without RoHS requirements can use the KYOCERA AVX substitute without functional impact.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both parts are packaged in the 1825 (4564 Metric) case with identical dimensions of 0.177" L x 0.252" W (4.50mm x 6.40mm) and maximum thickness of 0.059" (1.50mm). They are mechanically interchangeable on printed circuit boards.

Q: What does the BX temperature coefficient indicate?

A: The BX temperature coefficient indicates a ceramic dielectric material with a temperature coefficient of capacitance within the BX range as defined by military specifications. This ensures stable capacitance performance across the operating temperature range of -55°C to 125°C, critical for high-reliability military applications.

Q: Does packaging format affect electrical performance?

A: No. The Tape & Reel (TR) packaging of the KYOCERA AVX part is a logistics and handling format only. It does not affect electrical characteristics, performance, or reliability. The component itself is identical to bulk packaging formats.

Q: What is the significance of the S failure rate classification?

A: The S failure rate (0.001%) indicates the lowest failure rate classification for military-grade components per MIL-PRF-55681. Both parts meet this specification, confirming suitability for high-reliability applications requiring minimal defect rates.