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Product Detailed Parameters
- Description：DIODE STD 100V 300MA B SQMELF
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：100 V
- Current - Average Rectified (Io)：300mA
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 100 mA
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：5 ns
- Current - Reverse Leakage @ Vr：500 nA @ 75 V
- Capacitance @ Vr, F：5pF @ 0V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：SQ-MELF, B
- Supplier Device Package：B, SQ-MELF
- Operating Temperature - Junction：-65°C ~ 200°C
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Overview
The Microchip Technology 1N6642U/TR is a small signal switching diode designed for surface mount applications. It features a peak reverse voltage of 75 V and a maximum forward current of 300 mA. The device exhibits a fast recovery time of 5 ns, with a forward voltage of 1.2 V at the specified current. Reverse leakage current is limited to 500 nA. It is housed in a D-5D-2 package and supplied in tape and reel format.
Feature Summary
- Surface mount hermetic LCC-2D package design
- Ultrafast switching characteristics for high frequency operation
- Low leakage off-state performance
- Radiation hardened capability for harsh environments
Applications
- Low voltage switch-mode power converters
- High frequency DC-to-DC step-down regulators
- Chopper drives
- Free-wheeling diode circuits
- Transistor driver diodes
Procurement Notes
Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm that the component meets radiation hardness requirements if intended for space programs. Ensure the D-5D-2 footprint compatibility with the target PCB layout. Check for ESCC qualification status against detail specification 5101/026 for aerospace eligibility. Validate RoHS compliance status as it may be non-compliant depending on the specific manufacturing lot.
Selection Notes
Select this component for applications requiring low leakage and ultrafast recovery in a compact surface mount form factor. The hermetic LCC-2D package provides superior thermal conductivity and low mass. Consider the 75 V rating for low voltage protection or clamping roles. Evaluate the 300 mA forward current capacity against circuit load requirements. Ensure the operating temperature range supports the intended environment up to 175°C junction temperature.
Part Context
This part belongs to the 1N6642 series of ultrafast rectifiers from Microchip Technology. It shares the core electrical specifications with the standard 1N6642U but differs in packaging configuration. The series is characterized by its planar technology and suitability for total ionizing dose environments. It serves as a specialized alternative to through-hole variants in modern high-density electronics.
Replacement Considerations
Direct substitutes include the JANTXV1N6642U for military-grade specifications. The 1N6642US offers similar electrical performance in a different surface mount variant. Verify pinout and package dimensions before substituting with generic equivalents.
