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Product Detailed Parameters
- Description：DIODE ZENER 27V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：35 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 20.6 V
- Operating Temperature：-55°C ~ 175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF (Glass)
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N3030BUR-1/TR is a surface mount Zener diode in the DO-213AB (MELF) package. It features a nominal Zener voltage of 27 V at a test current of 9.5 mA, with a maximum dynamic impedance of 35 Ohms and a maximum reverse leakage current of 10 µA. The device supports a DC power dissipation of 1 W and operates within a junction temperature range of -55 °C to +175 °C.
Feature Summary
- Hermetically sealed glass MELF construction for high reliability
- Leadless surface mount design suitable for high-density applications
- Metallurgically bonded internal contacts to reduce thermal resistance
Applications
- Voltage regulation over broad operating currents and temperatures
- High-reliability military and aerospace circuits
- Radiation-hardened electronic systems
Procurement Notes
Verify that the specific suffix /TR indicates tape and reel packaging as per manufacturer documentation. Confirm the exact qualification level (JAN, JANTX, or JANTXV) required for the application, as these levels dictate specific testing and screening standards defined in MIL-PRF-19500/115.
Selection Notes
Select this component when a leadless surface mount form factor is required for space-constrained designs. Ensure the mounting surface Coefficient of Expansion matches the device's axial expansion characteristics to prevent mechanical stress during thermal cycling.
Part Context
This part belongs to the 1N3016B-1 through 1N3045B-1 series, which are surface mount equivalents of JEDEC registered devices. The series provides a wide selection of Zener voltages from 6.8 V to 110 V in a compact DO-213AB outline.
Replacement Considerations
Direct replacements include other manufacturers' DO-213AB Zener diodes with matching 27 V specifications. Verify that any substitute meets the same hermetic sealing and radiation hardness requirements if applicable.
FAQ
What is the polarity orientation for the 1N3030BUR-1?
The device must be operated with the banded end positive with respect to the opposite end for Zener regulation.
Is the 1N3030BUR-1 radiation hard?
Yes, the device is inherently radiation hard as described in Microsemi MicroNote 050.
