CDBB360LR-HF Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBB360LR-HF is an active Schottky rectifier diode manufactured by Comchip Technology, rated for 60V DC reverse voltage and 3A average rectified current in a surface mount DO-214AA (SMB) package. This component is designed for fast recovery applications requiring low forward voltage drop characteristics. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and is currently in active production status with 877 pieces in stock.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as automotive qualification or alternative sourcing preferences.

Substiute Parts

CDBB360LR-HF

Comchip TechnologyIn Stock: 924CDBB360LR-HF Datasheet

Current PartRFQ

B360BQ-13-F

Diodes IncorporatedIn Stock: 2098B360BQ-13-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBB360LR-HF are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 60V minimum
• Current - Average Rectified (Io): 3A minimum
• Technology: Schottky
• Package / Case: DO-214AA or SMB equivalent
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Surface Mount

Secondary Compatibility Factors:

• Operating Temperature Range: Must encompass or exceed the application's required junction temperature range
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The B360BQ-13-F from Diodes Incorporated meets all primary substitution criteria. This part maintains identical voltage and current ratings, identical package designation, and equivalent fast recovery speed characteristics. The B360BQ-13-F additionally carries AEC-Q101 automotive qualification and REACH compliance, making it suitable for applications requiring automotive-grade components.

Parameter Comparison

Engineering Selection Recommendations

CDBB360LR-HF Selection:

• Primary choice for standard industrial applications
• Lower forward voltage drop (550 mV @ 3A) reduces power dissipation
• Active production status with established supply availability (877 pcs in stock)
• ROHS3 compliant for environmental regulatory compliance

B360BQ-13-F Selection:

• Required for automotive applications requiring AEC-Q101 qualification
• Extended lower operating temperature range (-55°C vs -50°C) suitable for extreme cold environments
• Lower junction capacitance (200pF vs 250pF) beneficial for high-frequency switching applications
• REACH compliance status documented
• Higher forward voltage drop (700 mV @ 3A) must be evaluated for thermal management in power-sensitive designs

Both parts maintain identical voltage ratings, current ratings, package form factor, and fast recovery speed characteristics. Selection between these parts depends on application-specific requirements for automotive qualification, operating temperature extremes, and acceptable power dissipation levels.

Frequently Asked Questions (FAQ)

Q: Can B360BQ-13-F directly replace CDBB360LR-HF in existing designs?

A: Yes, from an electrical and mechanical standpoint. Both parts share identical 60V reverse voltage rating, 3A current rating, DO-214AA SMB package, and fast recovery speed characteristics. However, the 150 mV higher forward voltage drop in the B360BQ-13-F (700 mV vs 550 mV @ 3A) will increase power dissipation. Thermal analysis is required if the design operates at maximum current ratings.

Q: What is the significance of the forward voltage difference?

A: The CDBB360LR-HF exhibits 550 mV forward voltage drop at 3A, while the B360BQ-13-F exhibits 700 mV at the same current. In applications operating continuously at 3A, this 150 mV difference results in additional power dissipation of 0.45W per device. Thermal design must accommodate this difference, or the B360BQ-13-F must be derated to lower current levels.

Q: Are both parts suitable for automotive applications?

A: The B360BQ-13-F carries AEC-Q101 automotive qualification, making it the specified choice for automotive designs. The CDBB360LR-HF is not documented with automotive qualification and should not be used in automotive applications without explicit design authority approval.

Q: What does the capacitance difference mean for circuit performance?

A: The B360BQ-13-F has lower junction capacitance (200pF vs 250pF @ 4V, 1MHz). Lower capacitance reduces switching transients and improves high-frequency performance. This characteristic is beneficial in switching power supplies and high-frequency rectification circuits.

Q: Can I use these parts interchangeably in high-temperature applications?

A: Both parts support junction temperatures up to 150°C. The B360BQ-13-F extends the lower temperature limit to -55°C compared to -50°C for the CDBB360LR-HF. For applications requiring operation below -50°C, the B360BQ-13-F is required.

Q: Are there any supply chain considerations?

A: The CDBB360LR-HF currently has 877 pieces in stock. The B360BQ-13-F has 2020 pieces in stock, providing greater supply availability. For long-term production programs, the B360BQ-13-F may offer better supply security.

Q: Do both parts have identical moisture sensitivity?

A: Yes. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.