SB220-TP Equivalent & Substitute Parts

Part Overview

The SB220-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 20 V DC reverse voltage and 2 A average rectified current in a through-hole DO-15 package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary to support existing designs, maintain production continuity, and ensure component availability for repair and replacement applications.

Substiute Parts

SB220-TP

Micro Commercial CoIn Stock: 999SB220-TP Datasheet

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SB220E-G

Comchip TechnologyIn Stock: 725SB220E-G Datasheet

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SR202 A0G

Taiwan Semiconductor CorporationIn Stock: 932SR202 A0G Datasheet

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SR202 B0G

Taiwan Semiconductor CorporationIn Stock: 1114SR202 B0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SB220-TP are selected based on strict electrical and mechanical parameter matching within the Schottky rectifier diode category. The following criteria determine substitution eligibility:

Primary Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Current - Average Rectified (Io): 2 A
• Technology: Schottky
• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, or Axial variants

Secondary Compatibility Criteria:

• Voltage - Forward (Vf) (Max) @ If: 500 mV @ 2 A or equivalent
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 500 µA @ 20 V

All identified substitute parts meet or exceed these electrical specifications and maintain mechanical compatibility through identical or equivalent package designations.

Parameter Comparison

Engineering Selection Recommendations

SB220E-G (Comchip Technology) is the primary substitute for the SB220-TP. This part maintains identical electrical specifications including forward voltage and reverse leakage characteristics. The SB220E-G carries Active product status and ROHS3 compliance, supporting long-term availability and regulatory requirements. The operating temperature range is reduced to -65°C ~ 125°C compared to the main part's -65°C ~ 150°C; this difference is acceptable for applications not requiring operation above 125°C junction temperature.

SR202 A0G and SR202 B0G (Taiwan Semiconductor Corporation) are secondary substitutes that meet all primary electrical requirements. Both parts are Active products with ROHS3 compliance. The forward voltage specification is 550 mV @ 2 A, which is 50 mV higher than the SB220-TP. The operating temperature range is -55°C ~ 125°C, representing a narrower low-temperature specification. These parts are suitable for applications where the higher forward voltage drop and reduced low-temperature range are acceptable.

Selection between substitute options should be based on application-specific requirements for operating temperature range and forward voltage characteristics, as well as packaging format availability (Tape & Reel versus bulk).

Frequently Asked Questions (FAQ)

Q: Can the SB220E-G directly replace the SB220-TP in existing designs?

A: Yes. The SB220E-G maintains identical voltage ratings (20 V), current ratings (2 A), forward voltage characteristics (500 mV @ 2 A), and package configuration (DO-15). Both parts are Schottky rectifier diodes with fast recovery characteristics. The operating temperature range difference (-65°C ~ 125°C versus -65°C ~ 150°C) is the only specification variance; substitution is valid for applications operating within -65°C ~ 125°C.

Q: What is the difference between the SB220E-G and SR202 variants?

A: The SB220E-G and SR202 A0G/B0G differ in forward voltage specification. The SB220E-G specifies 500 mV @ 2 A, while SR202 variants specify 550 mV @ 2 A. This 50 mV difference affects power dissipation and thermal performance. Both maintain identical reverse voltage (20 V), current rating (2 A), and package type (DO-15). The SR202 variants also have a narrower low-temperature operating range (-55°C versus -65°C).

Q: Are there packaging differences between substitute parts?

A: The SB220-TP is supplied in Bulk packaging. The SB220E-G is supplied in Tape & Reel (TR) format. Both use the DO-15 package designation. The physical component dimensions and pin configuration remain identical; packaging format differences relate only to delivery and handling methods, not to electrical or mechanical compatibility.

Q: What compliance certifications apply to substitute parts?

A: The SB220E-G, SR202 A0G, and SR202 B0G are all ROHS3 compliant and REACH unaffected. All parts carry EAR99 export classification and HTSUS code 8541.10.0080. These certifications support use in regulated applications and international supply chains.

Q: How do operating temperature ranges affect substitution decisions?

A: The SB220-TP operates from -65°C ~ 150°C junction temperature. The SB220E-G operates from -65°C ~ 125°C, and SR202 variants operate from -55°C ~ 125°C. For applications requiring operation above 125°C junction temperature, the SB220-TP is the only option among these parts. For applications operating within -55°C ~ 125°C, all parts are suitable. For applications requiring operation between -65°C and -55°C, the SB220-TP and SB220E-G are suitable, while SR202 variants are not.

Q: What is the significance of the "Not For New Designs" status on the SB220-TP?

A: This designation indicates the SB220-TP has reached end-of-life and is no longer recommended for new product development. Existing inventory remains available for support and replacement purposes. For new designs, the SB220E-G or SR202 variants, both carrying Active status, are the appropriate selections.