CDR31BX102BKSS Equivalent & Substitute Parts

Part Overview

The CDR31BX102BKSS is a 1000 pF ±10% 100V ceramic capacitor manufactured by KYOCERA AVX, qualified to MIL-PRF-55681 military standards. This surface mount MLCC in 0805 (2012 Metric) package is designed for high reliability applications with a failure rate of S (0.001%). The part is currently active in production with 1014 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, packaging format preferences, or manufacturer availability.

Substiute Parts

CDR31BX102BKSS

KYOCERA AVXIn Stock: 1078CDR31BX102BKSS Datasheet

Current PartRFQ

CDR31BX102BKUS

KYOCERA AVXIn Stock: 962CDR31BX102BKUS Datasheet

Parametric EquivalentRFQ

CDR01BX102BKUS7185

KEMETIn Stock: 1167CDR01BX102BKUS7185 Datasheet

DirectRFQ

CDR01BX102BKUS7370

KEMETIn Stock: 3011CDR01BX102BKUS7370 Datasheet

DirectRFQ

CDR31BX102BKUS

KYOCERA AVXIn Stock: 962CDR31BX102BKUS Datasheet

Parametric EquivalentRFQ

CDR31BX102BKWSAT

Vishay VitramonIn Stock: 936CDR31BX102BKWSAT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for CDR31BX102BKSS is determined by strict equivalence across the following parameters:

• Capacitance: 1000 pF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating: 100V (exact match required)
• Temperature Coefficient: BX (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Series Qualification: MIL-PRF-55681 (exact match required)
• Failure Rate: S (0.001%) (exact match required)
• MSL Rating: 1 (Unlimited) (exact match required)

All identified substitutes meet these criteria. Variations in physical dimensions (length, width, thickness) within the 0805 package specification and differences in packaging format (Tape & Reel vs. Cut Tape) do not affect electrical equivalence. Manufacturer differences (KYOCERA AVX, KEMET, Vishay Vitramon) are permitted provided all electrical and reliability parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are qualified to MIL-PRF-55681 military standards with identical failure rate classifications (S, 0.001%) and MSL ratings (1, Unlimited). All parts maintain RoHS non-compliant status and REACH Affected designation consistent with the main part. Selection among substitutes may be based on:

• Manufacturer availability and lead time
• Packaging format requirement (Tape & Reel vs. Cut Tape)
• Current inventory levels
• Supply chain qualification status

CDR01BX102BKUS7370 (KEMET) offers the highest inventory availability at 2964 units. CDR31BX102BKUS (KYOCERA AVX) maintains the same manufacturer as the main part. CDR31BX102BKWSAT (Vishay Vitramon) is available in Cut Tape format for applications requiring alternative packaging.

Frequently Asked Questions (FAQ)

Q: Can CDR01BX102BKUS7185 and CDR01BX102BKUS7370 be used interchangeably with CDR31BX102BKSS?

A: Yes. Both KEMET parts meet all electrical and reliability parameters specified for CDR31BX102BKSS. Physical dimensions vary slightly within 0805 package tolerance (KEMET: 2.03mm x 1.27mm x 1.40mm maximum thickness vs. KYOCERA AVX: 2.00mm x 1.25mm x 1.30mm maximum thickness), but these differences remain within standard 0805 package specifications and do not affect circuit performance.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape (CT) packaging provides components on cut segments of carrier tape, typically for lower-volume or manual assembly applications. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: Are all substitutes qualified to the same military standard?

A: Yes. All listed substitutes are qualified to MIL-PRF-55681 with identical series designation and failure rate classification S (0.001%).

Q: Can I mix manufacturers in the same assembly?

A: Yes. All substitutes meet identical electrical, mechanical, and reliability specifications. Mixing manufacturers within the same design is permissible from an engineering standpoint, provided procurement and traceability requirements are satisfied.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life without special moisture control measures. No baking or desiccant storage is required prior to assembly.