Overview
The datasheet details the specifications of the Microsemi 1 Watt Glass Case Zener Diodes 1N3016B-1 through 1N3045B-1. These diodes come in a glass DO-41 package and provide a hermetic seal, with Zener voltage ranging from 6.8 to 110 volts. The diodes meet JEDEC registration requirements and offer RoHS-compliant versions for commercial applications. They are designed for high-reliability with qualifications such as JAN, JANTX, and JANTXV per MIL-PRF-19500/115. For low-voltage alternatives, the 1N3821 through 1N3828 series are recommended (ranging from 3.3 V to 7.5 V).
Features
- JEDEC registered part numbers 1N3016 through 1N3045.
- Hermetically sealed, metallurgically bonded, with double plug construction.
- Voltage tolerances of 5%, 2%, and 1% are available.
- Ratings of JAN, JANTX, and JANTXV military qualifications.
- RoHS compliant options for commercial grade.
Applications and Benefits
- Regulates voltage over a wide operating current and temperature range.
- Available voltage selections from 6.8 to 110 volts provide flexibility.
- Low leakage currents enhance performance.
- Resistance to ESD and inherent radiation toughness add to the diode’s resilience.
- Suitable for high-reliability applications due to its robustness.
Maximum Ratings
- Junction and Storage Temperature: -55 to +175°C
- Thermal Resistance, Junction-to-Lead: 80°C/W
- DC Power Dissipation: 1.0 W at Tc < +65°C
- Forward Voltage @ 200mA: 1.2 V
- Solder Temperature for 10 s: 260°C
Notably, the power derates to zero at a temperature of +175°C.
Mechanical and Packaging
- Case: Hermetically sealed, voidless, hard glass with tungsten slugs.
- Terminals: Options include tin/lead or RoHS compliant matte/tin over copper.
- Marking: Blue body coating with part number identification.
- Polarity: Cathode noticeable by band.
- Tape & Reel: Packaged per EIA-296 standards. Consult the factory for quantities.
- Weight: 340 milligrams per unit.
Part Nomenclature
Military qualification levels and RoHS compliance are indicated by the part number, with reliability levels ranging from JAN, JANTX, to JANTXV. RoHS compliance is denoted by ‘e3’ for commercial-grade parts.
Symbols and Definitions
- Reverse Current (Ir): The maximum reverse leakage current at specified conditions.
- Regulator Current (Iz, IzT, Izk): DC currents at various test points.
- Maximum Regulator Current (Izm): The highest rated DC current based on power rating.
- Maximum Forward Voltage (VF): The device’s forward voltage at a specified current.
- Reverse Voltage (VR): A steady reverse voltage without an alternating component.
- Zener Voltage (Vz): The voltage observed in the Zener breakdown region at a specified current.
- Dynamic Impedance (Zzt or Zzk): Small signal impedance measured in the breakdown region.
References:
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