CDBM260-G Equivalent & Substitute Parts

Part Overview

The CDBM260-G is a Schottky rectifier diode manufactured by Comchip Technology, rated for 60 V DC reverse voltage and 2 A average rectified current in a Surface Mount Mini SMA/SOD-123 package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this diode category.

Substiute Parts

CDBM260-G

Comchip TechnologyIn Stock: 1033CDBM260-G Datasheet

Current PartRFQ

MBRAF360T3G

onsemiIn Stock: 10413MBRAF360T3G Datasheet

MFR RecommendedRFQ

SS26S-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 64726SS26S-E3/61T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBM260-G are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 60 V minimum
• Current - Average Rectified (Io): 2 A minimum
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Surface Mount
• Operating Temperature Range: Must encompass or match -55°C to 150°C junction temperature
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Package Compatibility: Substitute parts may use different surface mount package designations (SOD-123T, DO-214AC/SMA, SMA-FL) provided they are mechanically compatible with the PCB footprint and assembly process.

Reverse Leakage Consideration: Reverse leakage current specifications may vary between manufacturers. Substitutes with higher reverse leakage (up to 3 mA @ 60 V) remain functionally equivalent for most applications within the specified voltage and current ratings.

Parameter Comparison

Engineering Selection Recommendations

SS26S-E3/61T (Vishay General Semiconductor - Diodes Division): This substitute maintains electrical equivalence with the CDBM260-G across all critical parameters: 60 V reverse voltage, 2 A average rectified current, and fast recovery Schottky technology. The forward voltage specification (750 mV @ 2 A) is within acceptable tolerance of the main part (700 mV @ 2 A). Reverse leakage is lower at 200 µA @ 60 V. Product status is Active. Package designation is DO-214AC (SMA), which differs from the SOD-123T of the main part; PCB footprint compatibility must be verified. ROHS3 compliance and MSL 1 rating match the main part. This substitute is suitable for direct replacement in applications where the DO-214AC package footprint is accommodated.

MBRAF360T3G (onsemi): This substitute exceeds the electrical requirements of the CDBM260-G with a 4 A average rectified current rating (versus 2 A). Reverse voltage rating is identical at 60 V. Fast recovery Schottky technology and operating temperature range (-65 to 150°C) are compatible. Forward voltage is lower at 630 mV @ 3 A, indicating superior performance characteristics. However, reverse leakage is significantly higher at 3 mA @ 60 V compared to 500 µA @ 60 V in the main part. Product status is Obsolete. Package is DO-221AC (SMA-FL), requiring PCB footprint verification. ROHS3 compliance and MSL 1 rating are maintained. This substitute is electrically capable but should be selected only when higher current capacity is beneficial and reverse leakage tolerance permits.

Frequently Asked Questions (FAQ)

Q: Can SS26S-E3/61T directly replace CDBM260-G on the same PCB?

A: Electrical substitution is valid. However, SS26S-E3/61T uses a DO-214AC (SMA) package while CDBM260-G uses SOD-123T (Mini SMA). Physical footprints differ. PCB layout compatibility must be confirmed before assembly. If the PCB is designed for SOD-123T, mechanical modification or redesign may be required.

Q: What is the significance of the higher current rating in MBRAF360T3G (4 A vs. 2 A)?

A: The 4 A rating indicates the substitute can handle higher average rectified current without exceeding thermal limits. In applications requiring only 2 A, this provides design margin. However, the higher reverse leakage current (3 mA @ 60 V) must be evaluated for circuits sensitive to leakage, such as precision analog or high-impedance applications.

Q: Why is MBRAF360T3G marked as Obsolete?

A: Obsolete status indicates the manufacturer (onsemi) has discontinued active production. Existing inventory may be available from distributors, but long-term supply cannot be guaranteed. For new designs, SS26S-E3/61T (Active status) is the preferred substitute.

Q: Are all three parts ROHS3 compliant?

A: Yes. CDBM260-G, SS26S-E3/61T, and MBRAF360T3G are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and reliability standards for industrial and commercial applications.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specifies the reverse recovery time characteristic of Schottky diodes. All three parts meet this fast recovery specification, ensuring rapid switching behavior suitable for high-frequency rectification and switching applications. Recovery time does not exceed 500 nanoseconds when reverse current exceeds 200 mA.

Q: Can forward voltage differences affect circuit performance?

A: Forward voltage differences (700 mV, 750 mV, 630 mV) are typically acceptable in rectifier applications where voltage drop is not the primary design constraint. In precision circuits or those with tight voltage budgets, the lower forward voltage of MBRAF360T3G (630 mV) may reduce power dissipation. Verification through circuit simulation or testing is recommended for critical applications.