MSS2P2HM3_A/H Equivalent & Substitute Parts

Part Overview

The MSS2P2HM3_A/H is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 20 V DC reverse voltage and 2 A average rectified current. This component is packaged in the MicroSMP (DO-219AD) surface mount configuration and qualifies under the eSMP® series designation. The device is Active in product status and carries AEC-Q101 automotive qualification with ROHS3 compliance.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is required while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

MSS2P2HM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 4624MSS2P2HM3_A/H Datasheet

Current PartRFQ

MSS2P2-M3/89A

Vishay General Semiconductor - Diodes DivisionIn Stock: 9286MSS2P2-M3/89A Datasheet

Parametric EquivalentRFQ

PD3S220LQ-7

Diodes IncorporatedIn Stock: 3977PD3S220LQ-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MSS2P2HM3_A/H are identified based on strict electrical and mechanical parameter alignment. The substitution logic is organized into two categories:

Parametric Equivalent (Same Manufacturer, Different Suffix): The MSS2P2-M3/89A is a Vishay General Semiconductor - Diodes Division part that maintains identical electrical specifications across all critical parameters: 20 V reverse voltage, 2 A average rectified current, 600 mV forward voltage at 2 A, fast recovery speed ≤ 500ns, 250 µA reverse leakage at 20 V, and 65 pF capacitance at 4 V. The package configuration remains MicroSMP (DO-219AD). This part differs only in manufacturing code designation and tape & reel configuration, making it a direct parametric equivalent.

Direct Manufacturer Equivalent (Different Manufacturer, Different Package): The PD3S220LQ-7 manufactured by Diodes Incorporated is a Schottky rectifier diode that meets the core electrical requirements: 20 V reverse voltage and 2 A average rectified current. However, this part introduces measurable differences in secondary parameters. Forward voltage is specified at 490 mV @ 2 A (110 mV lower than the main part), reverse leakage is 160 µA @ 20 V (90 µA lower), and capacitance is 46 pF @ 10 V (lower than the main part's 65 pF @ 4 V). The package configuration is PowerDI™ 323, which differs from MicroSMP. Operating temperature range is -65°C to 125°C, compared to -55°C to 150°C for the main part. Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance.

Key Parameters Determining Substitution:

• Voltage - DC Reverse (Vr) (Max): 20 V (required match)
• Current - Average Rectified (Io): 2 A (required match)
• Technology: Schottky (required match)
• Mounting Type: Surface Mount (required match)
• Grade: Automotive (required match)
• Qualification: AEC-Q101 (required match)

Parameter Comparison

Engineering Selection Recommendations

MSS2P2-M3/89A Selection: The MSS2P2-M3/89A is the preferred parametric equivalent for direct substitution. This part maintains identical electrical specifications across all measured parameters and operates within the same temperature range (-55°C to 150°C). Both parts are manufactured by Vishay General Semiconductor - Diodes Division, carry Active product status, hold AEC-Q101 automotive qualification, and comply with ROHS3 requirements. The MicroSMP (DO-219AD) package configuration is identical, eliminating any PCB layout or assembly process modifications. This part is suitable for applications requiring no design changes.

PD3S220LQ-7 Selection: The PD3S220LQ-7 is a cross-manufacturer equivalent suitable for applications where package footprint flexibility exists or where the lower forward voltage (490 mV vs. 600 mV) and reverse leakage (160 µA vs. 250 µA) characteristics provide design advantages. This part carries AEC-Q101 automotive qualification and ROHS3 compliance, matching the compliance profile of the main part. However, the PowerDI™ 323 package differs from MicroSMP (DO-219AD), requiring PCB layout modification and assembly process validation. The operating temperature range (-65°C to 125°C) is narrower at the upper limit (125°C vs. 150°C), which may restrict use in high-temperature automotive applications. Selection of this part requires design review to confirm package compatibility and thermal operating range suitability.

Frequently Asked Questions (FAQ)

Q: Can MSS2P2-M3/89A be used as a direct replacement for MSS2P2HM3_A/H without PCB modifications?

A: Yes. The MSS2P2-M3/89A is a parametric equivalent with identical electrical specifications and the same MicroSMP (DO-219AD) package configuration. No PCB layout or assembly process changes are required.

Q: What are the key differences between MSS2P2HM3_A/H and PD3S220LQ-7?

A: The primary differences are: (1) Package configuration—PD3S220LQ-7 uses PowerDI™ 323 instead of MicroSMP (DO-219AD), requiring PCB layout modification; (2) Forward voltage—PD3S220LQ-7 is specified at 490 mV @ 2 A versus 600 mV @ 2 A for MSS2P2HM3_A/H; (3) Reverse leakage—PD3S220LQ-7 is 160 µA @ 20 V versus 250 µA @ 20 V; (4) Operating temperature range—PD3S220LQ-7 maximum junction temperature is 125°C versus 150°C for MSS2P2HM3_A/H.

Q: Are all substitute parts automotive qualified?

A: Yes. Both MSS2P2-M3/89A and PD3S220LQ-7 carry AEC-Q101 automotive qualification and are designated as Automotive grade components, matching the qualification status of MSS2P2HM3_A/H.

Q: Do substitute parts comply with RoHS and REACH requirements?

A: Yes. All parts listed—MSS2P2HM3_A/H, MSS2P2-M3/89A, and PD3S220LQ-7—are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the moisture sensitivity level for these diodes?

A: All three parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.

Q: Can PD3S220LQ-7 be used in applications requiring operation at 150°C junction temperature?

A: No. The PD3S220LQ-7 is specified for a maximum junction temperature of 125°C. Applications requiring operation at 150°C must use MSS2P2HM3_A/H or MSS2P2-M3/89A.

Q: Does the lower forward voltage of PD3S220LQ-7 affect circuit performance?

A: The 110 mV difference in forward voltage (490 mV vs. 600 mV at 2 A) may reduce power dissipation in the diode and alter voltage drop characteristics in the circuit. Circuit analysis is required to confirm compatibility with the application's voltage regulation and thermal management design.

Q: Are there any package footprint compatibility considerations?

A: Yes. MSS2P2HM3_A/H and MSS2P2-M3/89A use identical MicroSMP (DO-219AD) footprints and are directly interchangeable on the PCB. PD3S220LQ-7 uses PowerDI™ 323 package, which has a different footprint and requires PCB redesign.