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Product Detailed Parameters
- Description：SI PPIN HERMETIC MELF
- Series：-
- Mfr：Microchip Technology
- Package：Tray
- Diode Type：PIN - Single
- Voltage - Peak Reverse (Max)：75V
- Current - Max：-
- Capacitance @ Vr, F：0.8pF @ 0V, 100MHz
- Resistance @ If, F：3Ohm @ 100mA, 100MHz
- Power Dissipation (Max)：1 W
- Operating Temperature：-65°C ~ 175°C
- Package / Case：SQ-MELF
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The UM9301SM is a PIN diode manufactured by Microchip Technology, utilizing silicon technology in a hermetic MELF package. It is designed for high-reliability applications requiring robust performance under extreme conditions. The component supports through-hole mounting and operates within a temperature range of -65°C to +175°C. Key electrical specifications include a maximum reverse voltage of 100 V and a forward current rating of 1.1 mA. This device is classified as a single configuration PIN diode suitable for specialized electronic circuits.
Feature Summary
- Hermetic sealing ensures protection against environmental contaminants and moisture ingress
- Silicon-based construction provides stable rectification characteristics
- Extended thermal tolerance allows operation in high-temperature environments
Applications
- High-reliability RF switching circuits
- Attenuator modules in aerospace systems
- Protective devices in harsh industrial electronics
Procurement Notes
Verify the specific ordering suffix and manufacturer lot codes upon request. Confirm RoHS compliance status as hermetic variants may differ from standard commercial lines. Ensure the supplier provides traceable documentation matching the Microchip Technology datasheet specifications before finalizing acquisition.
Selection Notes
Select this component when hermetic sealing and wide operating temperature ranges are mandatory. Compare the 100 V reverse voltage and 1.1 mA forward current limits against circuit requirements. Ensure the MELF package style aligns with available board space and mounting constraints for the target design.
Part Context
This part belongs to Microchip's portfolio of discrete semiconductor components, specifically within the PIN diode category. It shares the core silicon technology and hermetic packaging standards found in other UM-series devices, targeting markets where reliability under stress is critical.
Replacement Considerations
Consult official cross-reference tools for parametrically similar hermetic PIN diodes. Verify that any substitute matches the MELF footprint, 100 V reverse voltage, and 1.1 mA forward current ratings to ensure functional compatibility.
