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Product Detailed Parameters
- Description：DIODE ZENER 16V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：16 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：16 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 12.2 V
- Operating Temperature：-55°C ~ 175°C
- 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 1N3025B-1/TR is a 1-watt glass case Zener diode qualified per MIL-PRF-19500/115. It features a hermetically sealed DO-41 package with metallurgically bonded construction and double plug design. The nominal Zener voltage is 16 V at a test current of 15.5 mA, with a maximum dynamic impedance of 16 ohms at IZT and 25 ohms at IZK. Maximum reverse leakage current is 10 µA at the specified voltage. Operating junction and storage temperatures range from -55 °C to +175 °C.
Feature Summary
- Hermetically sealed voidless hard glass package with tungsten slugs for high-reliability applications
- Metallurgically bonded double plug construction ensuring structural integrity
- Qualified under JAN, JANTX, and JANTXV military standards per MIL-PRF-19500/115
Applications
- Voltage regulation over broad operating current and temperature ranges
- High-reliability electronic systems requiring radiation hardness
- In-process monitoring of welding quality using robotic laser ultrasonic measurement systems
Procurement Notes
Verify that the specific ordering suffix matches the required qualification level (JAN, JANTX, or JANTXV) and RoHS compliance status. Confirm tape and reel packaging availability directly with the manufacturer, as standard quantities may require factory consultation. Ensure the component meets the environmental specifications for the intended deployment environment.
Selection Notes
Select this component when a 16 V reference is required in a through-hole glass package. The B suffix indicates a 5% voltage tolerance. Consider the thermal resistance of 80 °C/W and power derating requirements for high-temperature environments. Verify compatibility with existing JEDEC registration numbers if replacing legacy designs.
Part Context
This device belongs to the 1N3016B-1 through 1N3045B-1 series of 1 Watt Glass Case Zener Diodes. The series covers a Zener voltage range from 6.8 volts to 110 volts. Lower voltage options are available in the 1N3821 through 1N3828 series within the same package type.
Replacement Considerations
Direct substitutes include other manufacturers' equivalents registered under the same JEDEC numbers (e.g., 1N3025). Cross-reference with JAN1N3025B-1 or JAN1N3025B-1/TR for identical electrical characteristics and package dimensions.
FAQ
What is the maximum forward voltage of the 1N3025B-1?
The maximum forward voltage is 1.2 V at a forward current of 200 mA.
How is polarity indicated on the 1N3025B-1?
Polarity is indicated by a band on the body of the diode, which marks the cathode end.
