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Product Detailed Parameters
- Description：DIODE SCHOTTKY 16V 35MA DIE
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：16 V
- Current - Average Rectified (Io)：35mA
- Voltage - Forward (Vf) (Max) @ If：750 mV @ 35 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：150 nA @ 16 V
- Capacitance @ Vr, F：4.5pF @ 0V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：Die
- Supplier Device Package：Die
- Operating Temperature - Junction：-55°C ~ 125°C
- Grade：-
- Qualification：-
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Overview
The CD6857 is a Schottky barrier diode manufactured by Microchip Technology. It features a single silicon element with a maximum repetitive reverse voltage of 20V and a forward current of 0.15A. The device utilizes a DO-213AA (LL34) glass package, offering hermetic sealing for high-reliability applications. Key electrical specifications include a maximum forward voltage of 0.35V and a reverse leakage current of 150nA at 16V. The component operates within a temperature range of -65°C to 150°C.
Feature Summary
- Hermetically sealed construction in a small glass MELF package
- Metallurgically bonded die for enhanced reliability
- Schottky barrier technology for low forward voltage drop
- Qualified per MIL-PRF-19500/444 standards
Applications
- High-reliability military aerospace systems
- Spacecraft power management circuits
- Harsh environment rectification applications
Procurement Notes
Verify the specific qualification grade required, as military grades such as JAN, JANTX, and JANTXV are available for certain variants but may not apply to all CDLL prefix part numbers. Confirm that the DO-213AA glass package meets the environmental requirements of the target system. Ensure compatibility with existing board layouts due to the specific footprint dimensions of the LL34 package.
Selection Notes
Select this component when extreme miniaturization is required alongside high reliability, as it occupies significantly less area than standard surface mount alternatives like the BAT54. Consider the hermetic seal and metallurgical bonding if the application demands resistance to harsh environmental conditions. Evaluate the 20V reverse voltage rating against peak circuit voltages to ensure adequate margin.
Part Context
The CD6857 belongs to a family of Schottky barrier diodes designed for high-reliability applications. It serves as a compact alternative to larger discrete diodes, leveraging advanced packaging techniques to maintain performance in space-constrained designs. The product line includes various qualification levels to meet diverse industry standards.
Replacement Considerations
Direct substitutes include other Schottky diodes in the DO-213AA package with similar voltage and current ratings. Verify that any replacement maintains the hermetic seal requirement if applicable. Standard commercial equivalents may lack the military qualification levels associated with this specific Microchip Technology component.
