CDR34BP472BKMSAT Equivalent & Substitute Parts

Part Overview

The CDR34BP472BKMSAT is a 4700 pF ceramic capacitor rated at 100V with BP temperature coefficient, manufactured by Vishay Vitramon. This component is part of the military-grade CDR34 series compliant with MIL-PRF-55681 and is designed for high-reliability applications. The part is currently active in production with 690 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are met while maintaining compatibility with the original design requirements.

Substiute Parts

CDR34BP472BKMSAT

Vishay VitramonIn Stock: 764CDR34BP472BKMSAT Datasheet

Current PartRFQ

CDR34BP472BFUS7185

KEMETIn Stock: 1166CDR34BP472BFUS7185 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDR34BP472BKMSAT is determined by strict equivalence in the following parameters:

• Capacitance Value: 4700 pF (exact match required)
• Voltage Rating: 100V (equal or higher acceptable)
• Temperature Coefficient: BP (exact match required)
• Package / Case: 1812 (4532 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C to 125°C (equal or wider range acceptable)
• Series Compliance: MIL-PRF-55681, CDR34 (exact match required)

The identified substitute part CDR34BP472BFUS7185 meets all critical electrical and mechanical parameters. Tolerance differences (±10% vs. ±1%) represent an upgrade in precision capability and do not prevent substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the CDR34BP472BKMSAT and CDR34BP472BFUS7185 are active military-grade components compliant with MIL-PRF-55681. The primary distinction is RoHS compliance status: the main part is ROHS3 compliant, while the substitute is RoHS non-compliant and REACH affected. Selection between these parts depends on regulatory requirements applicable to the end application. The substitute part offers improved tolerance (±1% vs. ±10%), which may provide enhanced circuit performance in precision-sensitive applications. Both parts maintain identical failure rates, operating temperature ranges, and physical dimensions, ensuring direct functional interchangeability at the circuit level.

Frequently Asked Questions (FAQ)

Q: Can CDR34BP472BFUS7185 be used as a direct replacement for CDR34BP472BKMSAT?

A: Yes, at the electrical and mechanical level. Both parts share identical capacitance, voltage rating, temperature coefficient, package dimensions, and failure rate specifications. The decision to substitute depends on compliance requirements, as the main part is ROHS3 compliant while the substitute is RoHS non-compliant.

Q: What is the significance of the tolerance difference (±10% vs. ±1%)?

A: The substitute part offers tighter tolerance, meaning its actual capacitance value will be closer to the nominal 4700 pF specification. This represents an upgrade in precision and does not prevent substitution, as tighter tolerance is always acceptable in circuit design.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1812 (4532 Metric) package with dimensions of 0.177" L x 0.126" W (4.50mm x 3.20mm) and maximum thickness of 0.059" (1.50mm). They are mechanically interchangeable on PCBs designed for either part.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the lowest moisture sensitivity classification. These components can be stored indefinitely without special moisture control measures, simplifying inventory and handling requirements.

Q: Are both parts suitable for military applications?

A: Both parts comply with MIL-PRF-55681 and are designated as military-grade components with S-level failure rates (0.001%). Selection should be based on specific regulatory and compliance requirements of the end application.