PU2DM Equivalent & Substitute Parts

Part Overview

The PU2DM is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 200 V DC reverse voltage and 2 A average rectified current in a Micro SMA surface mount package. This component is classified as a fast recovery diode with a reverse recovery time of 25 ns, suitable for standard rectification applications requiring compact form factors. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including voltage rating, current capacity, package type, and thermal operating range. Identifying qualified alternatives ensures design flexibility, supply chain continuity, and access to components with specialized certifications or performance characteristics.

Substiute Parts

PU2DM

Taiwan Semiconductor CorporationIn Stock: 12981PU2DM Datasheet

Current PartRFQ

PU2DMH

Taiwan Semiconductor CorporationIn Stock: 6493PU2DMH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PU2DM is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.05 V @ 2 A
• Current - Reverse Leakage @ Vr: 1 µA @ 200 V
• Capacitance @ Vr, F: 18 pF @ 4V, 1MHz

Mechanical Parameters:

• Package / Case: 2-SMD, Flat Lead (Micro SMA)
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 175°C

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The PU2DMH qualifies as a parametric equivalent substitute. While the reverse recovery time (trr) differs at 36 ns compared to the PU2DM's 25 ns, all other electrical, mechanical, and compliance parameters remain identical. The PU2DMH carries automotive-grade qualification (AEC-Q101), providing an additional certification tier suitable for applications requiring enhanced reliability standards.

Parameter Comparison

Engineering Selection Recommendations

PU2DM Selection Criteria: The PU2DM is appropriate for general-purpose rectification applications where standard industrial compliance and fast recovery characteristics (25 ns trr) are sufficient. Active product status ensures ongoing availability and manufacturing support. RoHS3 compliance and unlimited MSL rating provide environmental and moisture handling flexibility for standard commercial applications.

PU2DMH Selection Criteria: The PU2DMH is appropriate for applications requiring automotive-grade reliability and AEC-Q101 qualification. While maintaining identical electrical ratings and package compatibility with the PU2DM, the PU2DMH's automotive qualification provides enhanced process controls and reliability assurance. The slightly longer reverse recovery time (36 ns versus 25 ns) remains within fast recovery classification and does not compromise functional equivalence for standard rectification duty cycles. Selection of PU2DMH is warranted when design specifications explicitly require automotive-grade components or when supply chain strategy prioritizes qualified automotive suppliers.

Substitution Compatibility: Both parts are mechanically and electrically interchangeable within the specified parameter ranges. PCB layout, thermal management, and circuit design considerations remain identical. No design modifications are required when substituting between PU2DM and PU2DMH.

Frequently Asked Questions (FAQ)

Q: Can PU2DMH be used as a direct replacement for PU2DM in existing designs?

A: Yes. The PU2DMH maintains identical voltage rating (200 V), current capacity (2 A), forward voltage drop (1.05 V @ 2 A), package type (2-SMD, Flat Lead, Micro SMA), and operating temperature range (-55°C to 175°C). The reverse recovery time difference (36 ns versus 25 ns) does not affect functional compatibility in standard rectification applications. No circuit modifications or PCB redesign is required.

Q: What is the primary difference between PU2DM and PU2DMH?

A: The PU2DMH carries AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and testing standards. The reverse recovery time is specified at 36 ns compared to 25 ns for the PU2DM. All other electrical and mechanical parameters are identical.

Q: Are there any thermal or power dissipation differences between these parts?

A: No thermal or power dissipation parameters are provided in the component specifications. Both parts share identical forward voltage (1.05 V @ 2 A), reverse leakage current (1 µA @ 200 V), and operating temperature range (-55°C to 175°C). Thermal performance in application is determined by circuit design, PCB layout, and thermal management practices, not by differences between these two parts.

Q: Which part should be selected for automotive applications?

A: The PU2DMH is specified with AEC-Q101 qualification, making it the appropriate choice for automotive applications requiring certified component qualification. The PU2DM is suitable for general industrial and commercial applications.

Q: Is the Micro SMA package compatible with standard SMA footprints?

A: The package designation is 2-SMD, Flat Lead, Micro SMA. Both PU2DM and PU2DMH use this identical package type. PCB footprint compatibility depends on design specifications for Micro SMA package dimensions. No package differences exist between these two parts.

Q: What is the moisture sensitivity level for both parts?

A: Both PU2DM and PU2DMH are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices for surface mount components apply.

Q: Are both parts RoHS compliant?

A: Yes. Both PU2DM and PU2DMH are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for commercial and industrial applications.