US2AA-TP Equivalent & Substitute Parts

Part Overview

The US2AA-TP is a fast recovery rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and is designed for general-purpose rectification applications requiring fast switching characteristics with reverse recovery time of 50 ns.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining the same package form factor and mounting technology. Substitution becomes necessary due to inventory availability, supply chain considerations, or packaging format requirements (Bulk versus Tape & Reel).

Substiute Parts

US2AA-TP

Micro Commercial CoIn Stock: 1031US2AA-TP Datasheet

Current PartRFQ

US1A-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 4006US1A-E3/61T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the US2AA-TP is determined by the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Technology: Standard
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 50 ns

Allowable Variation Criteria:

• Current - Average Rectified (Io): Substitute must equal or exceed the main part rating
• Voltage - Forward (Vf) (Max): Substitute must not exceed main part specification
• Current - Reverse Leakage @ Vr: Substitute must not exceed main part specification
• Operating Temperature - Junction: Substitute range must encompass or exceed main part range

The US1A-E3/61T qualifies as a substitute with the following consideration: the current rating is 1 A, which is lower than the main part's 2 A rating. This part is suitable only for applications where the circuit current demand does not exceed 1 A.

Parameter Comparison

Engineering Selection Recommendations

US2AA-TP (Primary Selection): The US2AA-TP is the specified component for applications requiring 2 A average rectified current at 50 V reverse voltage. This part maintains Active product status and is available in Bulk packaging with 944 pieces in stock. REACH Unaffected status applies.

US1A-E3/61T (Conditional Substitute): The US1A-E3/61T is suitable as a substitute only when circuit design permits operation at 1 A maximum average rectified current. This part is available in Tape & Reel packaging with 3900 pieces in stock. The substitute exhibits wider operating temperature range (-55°C to 150°C versus -50°C to 150°C) and RoHS3 compliance with MSL 1 rating. Both parts maintain identical reverse voltage (50 V), reverse recovery time (50 ns), and package form factor (DO-214AC/SMA).

The substitute part exhibits higher reverse leakage current (10 µA versus 5 µA at 50 V) and lower junction capacitance (15 pF versus 28 pF at 4V, 1MHz). These differences are within acceptable ranges for standard rectifier applications but must be evaluated against specific circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can US1A-E3/61T replace US2AA-TP in all applications?

A: No. The US1A-E3/61T is rated for 1 A average rectified current, while the US2AA-TP is rated for 2 A. Substitution is valid only when the circuit design operates at or below 1 A. Exceeding this current rating will cause the substitute part to operate outside its specified limits.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the DO-214AC (SMA) surface mount package with identical mechanical form factor and land pattern compatibility.

Q: What is the difference in packaging format?

A: The US2AA-TP is supplied in Bulk packaging, while the US1A-E3/61T is supplied in Tape & Reel (TR) format. Bulk packaging is suitable for manual assembly or small-quantity applications. Tape & Reel format is optimized for automated pick-and-place assembly equipment.

Q: How do the reverse leakage currents compare?

A: The US2AA-TP specifies 5 µA reverse leakage at 50 V, while the US1A-E3/61T specifies 10 µA at 50 V. The substitute exhibits twice the leakage current. For applications sensitive to leakage current (such as precision analog circuits), this difference must be evaluated against circuit performance requirements.

Q: Are both parts RoHS compliant?

A: The US2AA-TP lists REACH Unaffected status. The US1A-E3/61T is RoHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). Both parts are REACH Unaffected and classified under ECCN EAR99.

Q: What is the temperature operating range difference?

A: The US2AA-TP operates from -50°C to 150°C junction temperature. The US1A-E3/61T operates from -55°C to 150°C. The substitute provides 5°C additional low-temperature capability, making it suitable for applications requiring extended cold-temperature operation.

Q: Do both parts have identical reverse recovery time?

A: Yes. Both the US2AA-TP and US1A-E3/61T specify 50 ns reverse recovery time, confirming identical fast recovery characteristics for switching applications.