CDBQC54-HF Equivalent & Substitute Parts

Part Overview

The CDBQC54-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 30 V DC reverse voltage with a 100 mA average rectified current rating and is classified as a small signal diode. The part is Active in product status and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to component availability, supply chain considerations, or design flexibility within the same functional specifications.

Substiute Parts

CDBQC54-HF

Comchip TechnologyIn Stock: 5527CDBQC54-HF Datasheet

Current PartRFQ

CDBQC0130R-HF

Comchip TechnologyIn Stock: 5154CDBQC0130R-HF Datasheet

Parametric EquivalentRFQ

CDBQC0140L-HF

Comchip TechnologyIn Stock: 5644CDBQC0140L-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBQC54-HF are identified based on strict electrical and mechanical parameter equivalence. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 100 mA
• Voltage - Forward (Vf) (Max) @ If: 450 mV @ 10 mA
• Current - Reverse Leakage @ Vr: 500 nA @ 10 V
• Technology: Schottky
• Speed Classification: Small Signal ≤ 200mA (Io), Any Speed

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package / Case: 0402 (1006 Metric)
• Supplier Device Package: 0402C/SOD-923F

Compliance & Status (Must Match):

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Operating Temperature - Junction: 125°C

The substitute parts CDBQC0130R-HF and CDBQC0140L-HF meet all specified electrical, mechanical, and compliance requirements and are therefore direct parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CDBQC54-HF, CDBQC0130R-HF, and CDBQC0140L-HF—are Active products from Comchip Technology with identical electrical specifications and mechanical packaging. Each part is ROHS3 compliant and carries Moisture Sensitivity Level 1 (Unlimited), indicating no special handling requirements during storage or assembly.

Selection between these parts is based on component availability and supply chain status. All three parts are functionally interchangeable within applications requiring a 30 V, 100 mA Schottky rectifier diode in the 0402 surface mount package. The identical forward voltage drop (450 mV @ 10 mA), reverse leakage current (500 nA @ 10 V), and operating temperature rating (125°C junction) ensure equivalent performance in circuit applications.

Frequently Asked Questions (FAQ)

Q: Are CDBQC0130R-HF and CDBQC0140L-HF direct substitutes for CDBQC54-HF?

A: Yes. Both parts are parametric equivalents with identical electrical ratings (30 V reverse voltage, 100 mA average rectified current, 450 mV forward voltage @ 10 mA), identical mechanical packaging (0402/SOD-923F surface mount), and identical compliance certifications (ROHS3, MSL 1). They are interchangeable in circuit design and PCB layout.

Q: Do these parts require different PCB footprints?

A: No. All three parts use the 0402 (1006 Metric) package with the 0402C/SOD-923F supplier device package designation. PCB footprints are identical.

Q: What is the difference between these part numbers if all parameters are the same?

A: The part numbers reflect different internal manufacturing codes or design revisions from Comchip Technology. The electrical and mechanical specifications are identical, making them functionally equivalent for circuit applications.

Q: Are there any temperature or environmental differences between these parts?

A: No. All three parts have the same operating temperature rating (125°C junction), Moisture Sensitivity Level (1 - Unlimited), and RoHS compliance status (ROHS3).

Q: Can I use these parts interchangeably in production?

A: Yes. Since all electrical parameters, mechanical packaging, and compliance certifications are identical, these parts can be used interchangeably in production. Selection is based on component availability from your supplier.

Q: What is the forward voltage drop specification?

A: The maximum forward voltage drop is 450 mV when measured at 10 mA forward current. This specification is identical across all three parts.

Q: What is the reverse leakage current specification?

A: The reverse leakage current is 500 nanoamperes (nA) measured at 10 V reverse voltage. This specification is identical across all three parts.