# Alternative for Obsolete Diode MSS1P2U-M3/89A

**URL:** <https://forum.digikey.com/t/alternative-for-obsolete-diode-mss1p2u-m3-89a/47822>\
**Category:** Discrete Semiconductor Products\
**Tags:** diodes, cross-reference, diodes-incorporated\
**Created:** [January 1, 2025, 6:00am UTC](https://forum.digikey.com/t/alternative-for-obsolete-diode-mss1p2u-m3-89a/47822 "2025-01-01T06:00:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Kristof\_2649](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/kristof_2649/32/2325_2.png) [@Kristof\_2649](https://forum.digikey.com/u/Kristof_2649)\
**Post date:** [January 1, 2025, 6:00am UTC](https://forum.digikey.com/t/alternative-for-obsolete-diode-mss1p2u-m3-89a/47822/1 "2025-01-01T06:00:00Z")

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For an alternative to Obsolete Vishay General Semiconductor part number: [MSS1P2U-M3/89A](https://www.digikey.com/en/products/detail/vishay-general-semiconductor-diodes-division/MSS1P2U-M3-89A/2175073)

I present for your consideration Part Number: [PD3S120L-7 by Diodes Incorporated](https://www.digikey.com/en/products/detail/diodes-incorporated/PD3S120L-7/1629567)

| Mfr Part # | PD3S120L-7 | MSS1P2U-M3/89A |
| --- | --- | --- |
| Mfr | Diodes Incorporated | Vishay General Semiconductor - Diodes Division |
| Product Status | Active | Obsolete |
| Technology | Schottky | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 20 V | 20 V |
| Current - Average Rectified (Io) | 1A | 1A |
| Voltage - Forward (Vf) (Max) @ If | 420 mV @ 1 A | 400 mV @ 1 A |
| Current - Reverse Leakage @ Vr | 160 µA @ 20 V | 1.2 mA @ 30 V |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | PowerDI™ 323 | DO-219AD (MicroSMP) |

Here is the footprint dimensions for the replacement part. Please review the specifications to see if this potential alternative will work for you.

 ![image](https://global.discourse-cdn.com/digikey/original/3X/e/0/e0d5418889a6122df3b97fd7aee72ddc11421ec6.png)