CDBC260SLR-HF Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBC260SLR-HF is a Schottky rectifier diode manufactured by Comchip Technology, rated for 60V DC reverse voltage and 2A average rectified current in a DO-214AB surface mount package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement continuity. The fast recovery characteristic (≤500ns, >200mA) and low forward voltage drop make this diode suitable for high-frequency switching and power conversion applications.

Substiute Parts

CDBC260SLR-HF

Comchip TechnologyIn Stock: 817CDBC260SLR-HF Datasheet

Current PartRFQ

CDBC360LR-HF

Comchip TechnologyIn Stock: 731CDBC360LR-HF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDBC260SLR-HF is determined by the following critical electrical and mechanical parameters:

Mandatory Compatibility Criteria:

• Voltage rating: DC reverse voltage must equal or exceed 60V
• Package type: DO-214AB (SMC) surface mount package required for mechanical and thermal compatibility
• Technology: Schottky diode classification
• Speed characteristic: Fast recovery ≤500ns, >200mA (Io)
• Operating temperature range: -50°C to 150°C junction temperature capability
• Moisture sensitivity: MSL 1 (Unlimited) classification

Current Rating Consideration: The CDBC260SLR-HF is rated for 2A average rectified current. Substitute parts may have equal or higher current ratings, provided all other parameters remain within specification. Higher current ratings do not disqualify a part from substitution in applications where the 2A rating is sufficient.

The CDBC360LR-HF meets all mandatory compatibility criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

CDBC360LR-HF is the qualified substitute for CDBC260SLR-HF based on the following factors:

1. Product Status: The CDBC360LR-HF is classified as Active, providing long-term availability and supply chain continuity compared to the obsolete CDBC260SLR-HF.

2. Regulatory Compliance: The CDBC360LR-HF carries ROHS3 Compliant certification, meeting current environmental and regulatory requirements for electronic components in restricted substance directives.

3. Electrical Equivalence: Both parts share identical voltage ratings (60V DC reverse), speed characteristics (fast recovery ≤500ns), reverse leakage current (500µA @ 60V), and operating temperature range (-50°C to 150°C).

4. Package Compatibility: Both components use the DO-214AB (SMC) surface mount package, ensuring mechanical and thermal compatibility with existing PCB designs without layout modifications.

5. Current Rating: The CDBC360LR-HF provides 3A average rectified current, exceeding the 2A requirement of the original part. This higher rating does not introduce incompatibility and may provide additional design margin in applications operating at or below 2A.

6. Moisture Sensitivity: Both parts maintain MSL 1 (Unlimited) classification, indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can CDBC360LR-HF directly replace CDBC260SLR-HF in existing designs?

A: Yes. Both parts are Schottky diodes in DO-214AB packages with identical 60V ratings, fast recovery characteristics, and operating temperature ranges. The CDBC360LR-HF's higher 3A current rating does not prevent substitution in applications requiring 2A or less.

Q: What is the difference in forward voltage drop between these parts?

A: The CDBC260SLR-HF specifies 500mV maximum forward voltage at 2A. The CDBC360LR-HF specifies 550mV maximum at 3A. Forward voltage varies with current; direct comparison at identical current levels is not provided in the specifications. Both values are within typical Schottky diode performance ranges.

Q: Are there packaging differences between these parts?

A: No. Both parts use the DO-214AB (SMC) surface mount package. No PCB layout or assembly process modifications are required for substitution.

Q: Why is the CDBC260SLR-HF obsolete?

A: Product obsolescence is determined by the manufacturer and reflects discontinuation of production. The CDBC360LR-HF provides equivalent functionality with active production status and current regulatory compliance.

Q: Does the higher capacitance of CDBC360LR-HF affect circuit performance?

A: The CDBC360LR-HF specifies 250pF capacitance at 4V, 1MHz, compared to 30pF for the CDBC260SLR-HF. Capacitance effects depend on circuit topology and operating frequency. Applications sensitive to junction capacitance should evaluate this parameter against specific circuit requirements.

Q: Is ROHS3 compliance required for my application?

A: ROHS3 compliance is mandatory for products sold in the European Union and many other markets. The CDBC360LR-HF's ROHS3 Compliant status ensures regulatory compliance for these regions. The CDBC260SLR-HF's compliance status is not specified.

Q: Can I use CDBC360LR-HF in high-frequency switching applications?

A: Yes. The CDBC360LR-HF maintains the fast recovery characteristic (≤500ns, >200mA) required for high-frequency switching applications, identical to the original CDBC260SLR-HF.