CDBA220-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBA220-G is a Schottky rectifier diode manufactured by Comchip Technology, rated for 20 V DC reverse voltage and 2 A average rectified current in a DO-214AC (SMA) surface mount package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts are selected based on matching or exceeding electrical performance within the same package family while maintaining compatibility with existing circuit designs.

Substiute Parts

CDBA220-G

Comchip TechnologyIn Stock: 1103CDBA220-G Datasheet

Current PartRFQ

CDBA240-G

Comchip TechnologyIn Stock: 5143CDBA240-G Datasheet

DirectRFQ

CDBA240-HF

Comchip TechnologyIn Stock: 2462CDBA240-HF Datasheet

DirectRFQ

B220A-13-F

Diodes IncorporatedIn Stock: 21859B220A-13-F Datasheet

UpgradeRFQ

SS22S-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 30453SS22S-E3/61T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBA220-G are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes (Same Voltage Rating): Parts maintaining the 20 V reverse voltage specification with identical or superior current handling and forward voltage characteristics. These parts are pin-compatible and functionally equivalent within the same package envelope.

Upgraded Substitutes (Higher Voltage Rating): Parts rated for 40 V reverse voltage while maintaining 2 A current capacity. These parts provide enhanced voltage margin and are mechanically compatible with the original package footprint, allowing direct PCB substitution in applications where higher voltage headroom is acceptable.

Alternative Package Substitutes (Different Package, Same Electrical Rating): Parts with identical electrical specifications but different surface mount packages (DO-214AA/SMB versus DO-214AC/SMA). These require PCB layout modification but maintain electrical performance.

Substitution eligibility is determined by the following criteria:

• Reverse voltage rating equal to or greater than 20 V
• Average rectified current rating equal to or greater than 2 A
• Forward voltage drop at 2 A not exceeding 550 mV
• Fast recovery speed characteristic (≤ 500ns, > 200mA)
• Surface mount technology with compatible package footprint
• Schottky diode technology classification

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical and Package Specifications):

The B220A-13-F manufactured by Diodes Incorporated is the primary direct substitute for the CDBA220-G. This part maintains identical voltage and current ratings, forward voltage characteristics, and DO-214AC (SMA) package footprint. The B220A-13-F is in active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Operating temperature range extends to 150°C maximum junction temperature, providing thermal margin beyond the original specification.

For Upgraded Performance (Higher Voltage Rating, Same Package):

The CDBA240-G and CDBA240-HF, both manufactured by Comchip Technology, provide 40 V reverse voltage rating while maintaining 2 A current capacity and identical package footprint. Both variants are in active product status with ROHS3 compliance. The CDBA240-G and CDBA240-HF are functionally interchangeable with each other and represent a voltage-upgraded alternative suitable for applications requiring enhanced reverse voltage margin. Direct PCB substitution is possible without layout modification.

For Alternative Package Consideration:

The SS22S-E3/61T manufactured by Vishay General Semiconductor maintains the 20 V reverse voltage and 2 A current rating but uses the DO-214AA (SMB) package instead of DO-214AC (SMA). Forward voltage is specified at 550 mV maximum at 2 A, representing a 50 mV increase over the original specification. This part is in active product status with ROHS3 compliance. PCB layout modification is required for package substitution.

All substitute parts listed maintain Moisture Sensitivity Level 1 (Unlimited), REACH Unaffected status, and EAR99 ECCN classification, ensuring compliance consistency with the original component.

Frequently Asked Questions (FAQ)

Q: Can the CDBA240-G or CDBA240-HF be used as direct replacements for the CDBA220-G?

A: Yes. Both CDBA240 variants maintain the same 2 A current rating, identical forward voltage drop (500 mV @ 2 A), and DO-214AC (SMA) package footprint. The 40 V reverse voltage rating exceeds the 20 V requirement, providing additional voltage margin. No PCB modification is required. Selection between CDBA240-G and CDBA240-HF depends on packaging preference (Tape & Reel availability).

Q: What is the difference between B220A-13-F and CDBA220-G?

A: The B220A-13-F is manufactured by Diodes Incorporated rather than Comchip Technology, but maintains identical electrical specifications: 20 V reverse voltage, 2 A current, and 500 mV forward voltage drop at 2 A. Both use the DO-214AC (SMA) package. The B220A-13-F is in active product status with extended operating temperature range (-65°C to 150°C) and ROHS3 compliance, whereas the CDBA220-G is obsolete.

Q: Why does the SS22S-E3/61T have a different package designation?

A: The SS22S-E3/61T uses the DO-214AA (SMB) package, which is physically larger than the DO-214AC (SMA) package. While electrical specifications are equivalent (20 V, 2 A), the different package footprint requires PCB layout modification. This part is suitable only when PCB redesign is feasible or when the larger package footprint is already accommodated in the design.

Q: Is the forward voltage difference between CDBA220-G (500 mV) and SS22S-E3/61T (550 mV) significant?

A: The 50 mV difference represents a 10% increase in forward voltage drop. In applications where power dissipation and thermal management are critical, this difference may be relevant. For most general-purpose rectification applications, this variance is within acceptable tolerance. Circuit simulation or testing is appropriate when forward voltage drop directly impacts system performance.

Q: Are all substitute parts ROHS3 compliant?

A: The B220A-13-F, CDBA240-G, CDBA240-HF, and SS22S-E3/61T are all ROHS3 compliant. The original CDBA220-G does not specify RoHS status. All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification.

Q: What is the inventory status of substitute parts?

A: B220A-13-F has 21,767 pieces in stock. CDBA240-G has 5,100 pieces in stock. CDBA240-HF has 2,373 pieces in stock. SS22S-E3/61T has 30,400 pieces in stock. All parts are available as new original components.

Q: Can CDBA240-G and CDBA240-HF be used interchangeably?

A: Yes. Both parts are manufactured by Comchip Technology with identical electrical specifications (40 V, 2 A, 500 mV forward voltage) and DO-214AC (SMA) package. The difference is packaging format: CDBA240-G and CDBA240-HF are both supplied in Tape & Reel (TR) format. Selection depends on supplier availability and procurement requirements.