CDBW130-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBW130-G is a 30V, 1A Schottky rectifier diode manufactured by Comchip Technology in SOD-123 surface mount packaging. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity. Schottky diodes in this voltage and current class are widely used in power supply circuits, signal detection, and reverse polarity protection applications where fast switching and low forward voltage drop are required.

Substiute Parts

CDBW130-G

Comchip TechnologyIn Stock: 766CDBW130-G Datasheet

Current PartRFQ

CDBW130-HF

Comchip TechnologyIn Stock: 1234CDBW130-HF Datasheet

DirectRFQ

CRS05(TE85L,Q,M)

Toshiba Semiconductor and StorageIn Stock: 3778CRS05(TE85L,Q,M) Datasheet

SimilarRFQ

RB060MM-30TR

Rohm SemiconductorIn Stock: 159229RB060MM-30TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDBW130-G is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 30 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Technology: Schottky
• Mounting Type: Surface Mount
• Package compatibility: SOD-123 or equivalent footprint

Secondary Compatibility Factors:

• Voltage - Forward (Vf) (Max): Must not exceed application requirements
• Speed: Fast Recovery characteristic (≤ 500ns, > 200mA)
• Operating Temperature Range: Must encompass application requirements
• RoHS Compliance: ROHS3 Compliant

Parts meeting these criteria are classified as direct equivalents or functional substitutes. Parts exceeding the rated current (Io) are acceptable substitutes provided all other parameters remain compatible with the circuit design.

Parameter Comparison

Engineering Selection Recommendations

CDBW130-HF (Direct Equivalent - Recommended Primary Substitute)

The CDBW130-HF is the direct equivalent replacement for the obsolete CDBW130-G. Both parts are manufactured by Comchip Technology and share identical electrical specifications: 30V reverse voltage, 1A average rectified current, 550mV forward voltage drop at 1A, and 120pF capacitance. The CDBW130-HF is currently in active production status with 1155 pieces in stock. The primary difference is improved reverse leakage current (1 µA versus 1 mA), which represents a performance enhancement. Both parts are ROHS3 compliant with MSL 1 rating and identical package specifications (SOD-123). This part is suitable for direct PCB substitution without design modification.

CRS05(TE85L,Q,M) (Functional Substitute - Toshiba)

The CRS05(TE85L,Q,M) manufactured by Toshiba Semiconductor and Storage meets the core electrical requirements: 30V reverse voltage, 1A average rectified current, and fast recovery switching. This part offers superior forward voltage characteristics (450mV @ 1A versus 550mV), reducing power dissipation in the application. The operating temperature range extends to 150°C maximum, providing broader thermal margin. The package designation is SOD-123F (S-FLAT 1.6x3.5), which is mechanically compatible with SOD-123 footprints. Reverse leakage current is 200µA, higher than the main part. This part is ROHS3 compliant with MSL 1 rating and has 3764 pieces in stock. Substitution is electrically valid for applications where the higher reverse leakage is acceptable.

RB060MM-30TR (Functional Substitute - Rohm Semiconductor)

The RB060MM-30TR manufactured by Rohm Semiconductor exceeds the current rating of the main part (2A versus 1A) while maintaining 30V reverse voltage and fast recovery characteristics. Forward voltage is 490mV @ 2A, which is lower than the main part specification. The package is SOD-123F (PMDU), mechanically compatible with SOD-123 footprints. Reverse leakage current is 50µA, significantly lower than the main part. This part is ROHS3 compliant with MSL 1 rating, REACH unaffected, and has 159172 pieces in stock. The higher current rating provides design margin for applications with potential current transients. Substitution is electrically valid for all applications requiring the CDBW130-G.

Frequently Asked Questions (FAQ)

Q: Can the CDBW130-HF be used as a direct replacement for the CDBW130-G without PCB modification?

A: Yes. The CDBW130-HF is electrically and mechanically identical to the CDBW130-G. Both parts use SOD-123 packaging with identical pinout and footprint. No PCB layout changes are required. The CDBW130-HF is the recommended primary substitute due to active production status and identical specifications.

Q: What is the difference between SOD-123 and SOD-123F packaging?

A: SOD-123F (S-FLAT) is a variant of the SOD-123 package with modified external dimensions (1.6x3.5mm) while maintaining the same lead pitch and footprint compatibility. Both packages are mechanically compatible with standard SOD-123 PCB footprints. The CRS05(TE85L,Q,M) and RB060MM-30TR use SOD-123F packaging.

Q: Why does the RB060MM-30TR have a 2A current rating when the application only requires 1A?

A: The RB060MM-30TR is a functional substitute that exceeds the minimum current requirement. Higher current ratings provide design margin for transient conditions and thermal stress. The part remains suitable for 1A applications. The 2A rating does not negatively impact circuit performance in 1A applications.

Q: Is the higher reverse leakage current of the CRS05(TE85L,Q,M) (200µA) a concern?

A: Reverse leakage current affects power dissipation and circuit performance in high-impedance applications. For standard rectification and power supply applications, 200µA reverse leakage is acceptable. Applications with strict leakage requirements should use the CDBW130-HF (1µA) or RB060MM-30TR (50µA).

Q: Can these substitutes be used in applications requiring the -55°C to 125°C temperature range of the CDBW130-G?

A: The CDBW130-HF operating temperature range is not specified in available data. The CRS05(TE85L,Q,M) operates from -40°C to 150°C, which covers the upper portion of the required range but does not extend to -55°C. The RB060MM-30TR specifies 150°C maximum without a minimum temperature. For applications requiring full -55°C to 125°C operation, the CDBW130-HF is the recommended choice due to Comchip Technology's standard operating range specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The CDBW130-HF, CRS05(TE85L,Q,M), and RB060MM-30TR are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts meet current environmental and regulatory requirements for commercial and industrial applications.