CDBQC0140L-HF Equivalent & Substitute Parts

Part Overview

The CDBQC0140L-HF is a Schottky rectifier diode manufactured by Comchip Technology, designed for surface mount applications in the 0402 (1006 Metric) package. This component operates at a maximum reverse voltage of 30 V with an average rectified current of 100 mA, making it suitable for low-voltage power conversion and signal protection circuits. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support component availability, supply chain continuity, and design flexibility in applications where parametric compatibility is maintained.

Substiute Parts

CDBQC0140L-HF

Comchip TechnologyIn Stock: 5644CDBQC0140L-HF Datasheet

Current PartRFQ

CDBQC0130R-HF

Comchip TechnologyIn Stock: 5154CDBQC0130R-HF Datasheet

Parametric EquivalentRFQ

CDBQC54-HF

Comchip TechnologyIn Stock: 5527CDBQC54-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBQC0140L-HF are identified based on parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain constant:

• Voltage Rating: Maximum reverse voltage of 30 V
• Current Rating: Average rectified current of 100 mA
• Forward Voltage Drop: 450 mV maximum at 10 mA forward current
• Reverse Leakage Current: 500 nA at 10 V reverse voltage
• Package Configuration: 0402 (1006 Metric) surface mount package with SOD-923F supplier designation
• Technology: Schottky diode classification
• Compliance: ROHS3 compliance and MSL 1 rating
• Product Status: Active manufacturing status

All substitute parts listed maintain identical electrical performance characteristics and mechanical compatibility, enabling direct substitution in circuit designs without modification to PCB layout, thermal management, or electrical circuit parameters.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CDBQC0140L-HF, CDBQC0130R-HF, and CDBQC54-HF—are equivalent Schottky rectifier diodes from Comchip Technology with identical electrical specifications and mechanical packaging. Selection among these parts is based on supply chain availability and inventory status rather than technical performance differentiation.

CDBQC0140L-HF is the primary reference part with 5615 pieces in stock.

CDBQC0130R-HF is a parametric equivalent with 5063 pieces in stock, suitable for direct substitution.

CDBQC54-HF is a parametric equivalent with 5481 pieces in stock, suitable for direct substitution.

All parts maintain Active product status, ROHS3 compliance, and MSL 1 rating, confirming suitability for current and future production environments. The choice between these parts depends solely on procurement lead times, supplier availability, and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Can CDBQC0130R-HF be used as a direct replacement for CDBQC0140L-HF?

A: Yes. Both parts are Schottky rectifier diodes with identical electrical ratings (30 V reverse voltage, 100 mA average rectified current, 450 mV forward voltage drop at 10 mA), identical reverse leakage current (500 nA at 10 V), and identical mechanical packaging (0402/SOD-923F surface mount). No circuit modifications or PCB layout changes are required.

Q: Can CDBQC54-HF be used as a direct replacement for CDBQC0140L-HF?

A: Yes. CDBQC54-HF is parametrically equivalent to CDBQC0140L-HF across all electrical and mechanical specifications. Direct substitution is supported without design changes.

Q: Are there any differences in thermal performance between these three parts?

A: No thermal performance differences are specified in the provided parameters. All three parts share identical maximum junction operating temperature (125°C) and are housed in the same 0402 (1006 Metric) package with identical supplier designation (0402C/SOD-923F).

Q: Do all three parts meet the same compliance standards?

A: Yes. CDBQC0140L-HF, CDBQC0130R-HF, and CDBQC54-HF all carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, confirming compatibility with current manufacturing and storage requirements.

Q: What is the difference between these part numbers if they are electrically identical?

A: The part numbers represent different manufacturing lots or internal Comchip Technology designations. From an engineering perspective, they are functionally equivalent and interchangeable. Differences exist only in inventory tracking and supply chain management.

Q: Can these parts be used interchangeably in high-reliability applications?

A: All three parts carry Active product status and identical compliance certifications (ROHS3, MSL 1). Selection for high-reliability applications should be based on procurement documentation, traceability requirements, and supplier qualification procedures rather than technical performance differentiation.

Q: Is the 0402C/SOD-923F package designation the same across all three parts?

A: Yes. All three parts use the identical supplier device package designation 0402C/SOD-923F, confirming mechanical and electrical compatibility at the component level and PCB assembly interface.