UH2D-M3/52T Equivalent & Substitute Parts

Part Overview

The UH2D-M3/52T is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while meeting the same packaging and compliance standards.

Substiute Parts

UH2D-M3/52T

Vishay General Semiconductor - Diodes DivisionIn Stock: 971UH2D-M3/52T Datasheet

Current PartRFQ

VS-2EGH02-M3/5BT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1232VS-2EGH02-M3/5BT Datasheet

DirectRFQ

SURS8115T3G-VF01

onsemiIn Stock: 868SURS8115T3G-VF01 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UH2D-M3/52T is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 200 V
• Current - Average Rectified (Io): Must equal or exceed 2 A
• Package / Case: Must be DO-214AA (SMB) surface mount
• Speed Classification: Must be Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating Temperature Range: Must encompass -55°C to 175°C junction temperature
• RoHS and MSL Compliance: Must maintain ROHS3 Compliant and MSL 1 (Unlimited) status

Substitute Parts Identified:

1. VS-2EGH02-M3/5BT (Vishay General Semiconductor - Diodes Division): Meets all primary criteria with identical voltage and current ratings, improved forward voltage performance, and active product status.

2. SURS8115T3G-VF01 (onsemi): Partial electrical compatibility with reduced voltage (150 V) and current (1 A) ratings; does not meet primary substitution criteria for applications requiring full 200 V / 2 A specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: VS-2EGH02-M3/5BT

The VS-2EGH02-M3/5BT is the direct functional equivalent for the obsolete UH2D-M3/52T. This part maintains identical voltage (200 V) and current (2 A) ratings, operates within the same temperature range (-55°C to 175°C), and is packaged in the same DO-214AA (SMB) surface mount configuration. The VS-2EGH02-M3/5BT carries active product status and meets all RoHS3 and MSL compliance requirements. The improved forward voltage characteristic (900 mV versus 1.05 V at 2 A) and faster reverse recovery time (23 ns versus 35 ns) provide enhanced performance in switching applications. This part is available in Tape & Reel packaging and is suitable for direct replacement in new designs and production transitions.

Secondary Substitute: SURS8115T3G-VF01

The SURS8115T3G-VF01 is an active onsemi product with automotive-grade qualification (AEC-Q101). However, this part does not meet the full electrical specifications of the UH2D-M3/52T, as it is rated for 150 V reverse voltage and 1 A average rectified current. The SURS8115T3G-VF01 is suitable only for applications where the circuit design operates at reduced voltage and current levels below the original 200 V / 2 A specification. This part maintains RoHS3 compliance and MSL 1 status, with an extended lower operating temperature limit (-65°C).

Frequently Asked Questions (FAQ)

Q: Can the VS-2EGH02-M3/5BT be used as a direct replacement for the UH2D-M3/52T?

A: Yes. The VS-2EGH02-M3/5BT meets all critical electrical parameters: 200 V reverse voltage, 2 A average rectified current, DO-214AA (SMB) package, fast recovery speed classification, and identical operating temperature range. Both parts are ROHS3 compliant with MSL 1 (Unlimited) rating. The VS-2EGH02-M3/5BT is active and available in production quantities.

Q: What are the key differences between the UH2D-M3/52T and VS-2EGH02-M3/5BT?

A: The primary differences are product status (obsolete versus active) and performance characteristics. The VS-2EGH02-M3/5BT exhibits lower forward voltage (900 mV versus 1.05 V at 2 A) and faster reverse recovery time (23 ns versus 35 ns). Both parts are electrically equivalent for circuit operation at the specified 200 V / 2 A ratings.

Q: Is the SURS8115T3G-VF01 a suitable replacement for the UH2D-M3/52T?

A: The SURS8115T3G-VF01 is not a direct replacement. This part is rated for 150 V reverse voltage and 1 A average rectified current, which are below the UH2D-M3/52T specifications of 200 V and 2 A. The SURS8115T3G-VF01 is suitable only for circuits designed to operate at the lower voltage and current levels.

Q: What packaging formats are available for the substitute parts?

A: The VS-2EGH02-M3/5BT is supplied in Tape & Reel (TR) packaging. Both the UH2D-M3/52T and VS-2EGH02-M3/5BT use the DO-214AA (SMB) surface mount package. The SURS8115T3G-VF01 is supplied in SMB package format.

Q: Do the substitute parts meet the same compliance standards as the original part?

A: Yes. Both VS-2EGH02-M3/5BT and SURS8115T3G-VF01 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. The SURS8115T3G-VF01 includes automotive-grade qualification (AEC-Q101).

Q: What is the operating temperature range for each part?

A: The UH2D-M3/52T and VS-2EGH02-M3/5BT both operate from -55°C to 175°C junction temperature. The SURS8115T3G-VF01 extends the lower limit to -65°C, providing a wider operating range.