SRAF1660 Equivalent & Substitute Parts

Part Overview

The SRAF1660 is a Schottky rectifier diode rated for 60V DC reverse voltage and 16A average rectified current, housed in a through-hole TO-220-2 package. This component is designed for high-speed switching applications requiring fast recovery characteristics. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical ratings, package compatibility, and operational specifications align with the original component requirements.

Substiute Parts

SRAF1660

Taiwan Semiconductor CorporationIn Stock: 745SRAF1660 Datasheet

Current PartRFQ

MBRF1660

SMC Diode SolutionsIn Stock: 2152MBRF1660 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SRAF1660 are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 60V
• Current - Average Rectified (Io): 16A
• Technology: Schottky
• Mounting Type: Through Hole
• Package / Case: TO-220-2 Full Pack
• Operating Temperature Range: -55°C to 150°C
• Speed Classification: Fast Recovery ≤ 500ns

Allowable Variations:

• Forward voltage (Vf) may vary within acceptable limits for the application
• Reverse leakage current (Ir) within specified range
• Capacitance specifications when provided
• Package isolation features (isolated tab)
• Supplier packaging format (tube vs. bulk)

The MBRF1660 manufactured by SMC Diode Solutions meets all critical electrical and mechanical parameters required for direct substitution with the SRAF1660.

Parameter Comparison

Engineering Selection Recommendations

SRAF1660 (Taiwan Semiconductor Corporation)

The SRAF1660 is the primary component specification. It maintains active product status with full RoHS3 compliance and REACH unaffected classification. This part is suitable for applications requiring standard TO-220-2 package configuration without isolated tab requirements.

MBRF1660 (SMC Diode Solutions)

The MBRF1660 is a direct electrical equivalent with identical voltage, current, and temperature ratings. The forward voltage specification is 50mV higher at maximum rating (750mV vs. 700mV @ 16A), which remains within acceptable operating margins for most applications. The MBRF1660 features an isolated tab variant of the TO-220-2 package, providing additional thermal and electrical isolation options. This part carries ROHS3 compliance and maintains the same ECCN and HTSUS classifications. The MBRF1660 is REACH Affected, requiring compliance verification for specific end-use applications.

Both parts are active production components with unlimited moisture sensitivity rating and identical fast recovery speed specifications. Selection between these parts depends on package isolation requirements and REACH compliance obligations for the target application.

Frequently Asked Questions (FAQ)

Q: Can the MBRF1660 directly replace the SRAF1660 in existing designs?

A: Yes. Both parts share identical voltage ratings (60V), current ratings (16A), temperature range (-55°C to 150°C), and fast recovery speed specifications (≤500ns). The TO-220-2 package footprint is identical. The forward voltage difference of 50mV at maximum rating does not prevent direct substitution in standard rectifier applications.

Q: What is the significance of the isolated tab feature on the MBRF1660?

A: The isolated tab on the MBRF1660 provides electrical isolation between the tab and the semiconductor junction, reducing parasitic capacitance and improving thermal management in isolated switching topologies. Standard TO-220-2 packages without isolated tabs conduct current through the tab. Selection depends on circuit isolation requirements.

Q: Are there compliance differences between SRAF1660 and MBRF1660?

A: Both parts are ROHS3 compliant with identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. The SRAF1660 is REACH Unaffected, while the MBRF1660 is REACH Affected. Applications subject to REACH regulations must verify compliance status with the specific end-use market and substance restrictions.

Q: What is the impact of the 50mV forward voltage difference?

A: At 16A rated current, the MBRF1660 forward voltage is specified at 750mV maximum compared to 700mV for the SRAF1660. This 50mV difference represents approximately 7% higher forward voltage drop. In power dissipation calculations, this translates to proportionally higher heat generation. Applications with tight thermal budgets or high-frequency switching should account for this difference in thermal design.

Q: Are both parts available in equivalent quantities?

A: The SRAF1660 has 641 pieces in stock, while the MBRF1660 has 2136 pieces available. The MBRF1660 is supplied in tube packaging, whereas the SRAF1660 packaging format is not specified. Procurement decisions should consider lead time and supply chain requirements.

Q: What applications are these diodes suitable for?

A: These Schottky rectifier diodes are designed for high-speed switching applications including power supplies, inverters, and converter circuits requiring fast recovery characteristics. The 60V rating and 16A current capacity address mid-range power conversion requirements. Fast recovery speed (≤500ns) minimizes switching losses in high-frequency applications.