CBR08C708BAGAC Equivalent & Substitute Parts

Part Overview

The CBR08C708BAGAC is a 0.7 pF ceramic capacitor manufactured by KEMET, rated for 250V operation with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is designed for RF and microwave applications requiring high Q factor and ultra-low ESR performance. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and voltage rating upgrades while maintaining core electrical and mechanical compatibility.

Substiute Parts

CBR08C708BAGAC

KEMETIn Stock: 1156CBR08C708BAGAC Datasheet

Current PartRFQ

CBR08C708ACGAC

KEMETIn Stock: 2211CBR08C708ACGAC Datasheet

UpgradeRFQ

QSCT251Q0R7B1GV001E

Johanson Technology Inc.In Stock: 20895QSCT251Q0R7B1GV001E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CBR08C708BAGAC are classified based on the following substitution criteria:

Upgrade Substitute (Higher Voltage Rating): CBR08C708ACGAC maintains identical capacitance (0.7 pF), package format (0805), temperature coefficient (C0G/NP0), and operating temperature range (-55°C to 125°C). The primary difference is an elevated voltage rating of 500V compared to the original 250V specification, with improved tolerance (±0.05pF versus ±0.1pF). This part is suitable for applications requiring higher voltage headroom while preserving all other electrical characteristics.

Similar Substitute (Same Voltage, Different Manufacturer): QSCT251Q0R7B1GV001E, manufactured by Johanson Technology Inc., provides equivalent capacitance (0.7 pF), voltage rating (250V), tolerance (±0.1pF), temperature coefficient (C0G/NP0), and operating temperature range (-55°C to 125°C). Package classification remains 0805 (2012 Metric) with identical RoHS3 and MSL 1 compliance. Dimensional variations exist within acceptable mechanical tolerances for the 0805 package category.

All substitute parts share the following critical parameters with the main part:

• Capacitance value: 0.7 pF
• Temperature coefficient: C0G/NP0
• Operating temperature: -55°C to 125°C
• Package: 0805 (2012 Metric)
• Mounting type: Surface Mount, MLCC
• RoHS3 compliance
• MSL 1 rating

Parameter Comparison

Engineering Selection Recommendations

CBR08C708BAGAC (Original Part): Select this part for applications with 250V maximum operating voltage, standard tolerance requirements (±0.1pF), and established supply chain preferences for KEMET CBR-SMD RF C0G series components. Product status is active with 1089 units in stock.

CBR08C708ACGAC (Upgrade Substitute): Select this part when circuit design requires 500V voltage rating capability, tighter tolerance specifications (±0.05pF), or when higher voltage margin is necessary for reliability in RF and microwave applications. This KEMET part maintains identical package and thermal characteristics while providing enhanced voltage performance. Product status is active with 2196 units in stock.

QSCT251Q0R7B1GV001E (Similar Substitute): Select this Johanson Technology part when equivalent electrical performance at 250V is required with identical tolerance (±0.1pF) and the same 0805 package format is acceptable. This option provides the highest inventory availability (20861 units in stock) and serves as a cross-manufacturer alternative. All compliance certifications (RoHS3, REACH, EAR99) are equivalent to the original part.

All three parts are active products with full regulatory compliance. Selection between the original and substitute parts depends on voltage rating requirements, tolerance specifications, and supply chain considerations rather than functional performance differences.

Frequently Asked Questions (FAQ)

Q: Can CBR08C708ACGAC be used as a direct replacement for CBR08C708BAGAC?

A: Yes. CBR08C708ACGAC is a direct substitute with identical capacitance (0.7 pF), package (0805), temperature coefficient (C0G/NP0), and operating temperature range (-55°C to 125°C). The 500V rating is a superset of the original 250V specification, making it suitable for any circuit designed for the original part. The improved tolerance (±0.05pF) provides additional precision.

Q: What are the dimensional differences between QSCT251Q0R7B1GV001E and CBR08C708BAGAC?

A: Both parts use the 0805 (2012 Metric) package classification. QSCT251Q0R7B1GV001E has dimensions of 0.080" L x 0.050" W (2.03mm x 1.27mm) with maximum thickness of 0.046" (1.17mm). CBR08C708BAGAC has dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) with maximum thickness of 0.037" (0.95mm). These variations fall within standard 0805 package tolerances and are compatible with identical PCB footprints.

Q: Are all three parts suitable for RF and microwave applications?

A: Yes. All three parts are specified for RF and microwave applications with high Q factor and ultra-low ESR characteristics. The C0G/NP0 temperature coefficient ensures stable capacitance across the -55°C to 125°C operating range, which is essential for frequency-critical RF circuits.

Q: What is the tolerance difference between the main part and the upgrade substitute?

A: CBR08C708BAGAC has a tolerance of ±0.1pF, while CBR08C708ACGAC has a tighter tolerance of ±0.05pF. For a 0.7 pF capacitor, this represents improved precision in the upgrade part. Both tolerances are acceptable for RF applications; the tighter tolerance may be preferred in circuits with strict frequency stability requirements.

Q: Are there any compliance or regulatory differences between the three parts?

A: No. All three parts are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. All parts have MSL 1 (unlimited moisture sensitivity) rating, indicating no special moisture handling requirements during storage or assembly.

Q: Can QSCT251Q0R7B1GV001E be used in high-volume production as a primary source?

A: Yes. QSCT251Q0R7B1GV001E is an active product from Johanson Technology Inc. with the highest inventory availability (20861 units in stock) among the three options. It meets all electrical and compliance requirements for RF and microwave applications and is suitable for primary sourcing in high-volume production environments.

Q: What is the primary reason to select the 500V rated CBR08C708ACGAC over the 250V original part?

A: The 500V rating provides increased voltage margin for circuit reliability and design flexibility. In RF applications where voltage transients or overvoltage conditions may occur, the higher rating offers protection. Additionally, the improved tolerance (±0.05pF) supports more precise frequency tuning in critical RF circuits.