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Product Detailed Parameters
- Description：DIODE ZENER 75V 1W DO41
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：75 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：175 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 56 V
- Operating Temperature：-55°C ~ 175°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N3041B-1E3 is a 75 V Zener diode with a 5% voltage tolerance, housed in a hermetically sealed glass DO-41 axial package. It features metallurgical bonding and double plug construction for high reliability. The device operates within a junction temperature range of -55°C to +175°C and dissipates up to 1.0 W at 95°C lead temperature. Electrical characteristics include a maximum dynamic impedance of 2000 Ohms at the knee current and a reverse leakage current of 10 µA at 62.2 V.
Feature Summary
- Hermetically sealed glass DO-41 package with tungsten slugs
- Metallurgically bonded internal construction
- Double plug design for enhanced stability
- Inherently radiation hard
Applications
- Voltage regulation over broad operating currents
- High-reliability military and aerospace circuits
- ESD-insensitive protection applications
Procurement Notes
Verify that the 'e3' suffix confirms RoHS compliance, as this status applies strictly to commercial grade versions. Confirm the 'B' suffix indicates the required 5% voltage tolerance. Ensure the specific procurement lot matches the desired military qualification level (JAN, JANTX, or JANTXV) if higher reliability than standard commercial is required.
Selection Notes
Select this component when a 75 V reference is needed in an axial through-hole format. The DO-41 glass package provides superior hermetic sealing compared to plastic alternatives. Consider the 2000 Ohm dynamic impedance for low-current regulation needs. Verify thermal derating requirements against the application's ambient temperature profile.
Part Context
This part belongs to the established 1N3016B-1 through 1N3045B-1 series of 1 Watt Glass Case Zener Diodes. These devices are JEDEC registered and qualified per MIL-PRF-19500/115. The series covers a wide voltage range from 6.8 V to 110 V, offering consistent performance across various breakdown voltages in the same physical footprint.
Replacement Considerations
Equivalent parts include other manufacturers' 1N3041 variants meeting MIL-PRF-19500/115 specifications. Surface mount equivalents exist in the DO-213AB package (1N3041BUR-1). Verify pinout compatibility and thermal resistance values before substitution.
FAQ
What is the maximum reverse leakage current for the 1N3041B-1E3?
The maximum reverse leakage current is 10 µA, measured at a reverse voltage of 62.2 V.
Is the 1N3041B-1E3 radiation hard?
Yes, the device is inherently radiation hard as described in Microsemi MicroNote 050.
What does the 'B' suffix indicate in the part number?
The 'B' suffix indicates a Zener voltage tolerance of 5%.
