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Product Detailed Parameters
- Description:DIODE ZENER 8.2V 1W DO204AL
- Series:-
- Mfr:Microchip Technology
- Package:Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz):8.2 V
- Tolerance:±5%
- Power - Max:1 W
- Impedance (Max) (Zzt):4.5 Ohms
- Current - Reverse Leakage @ Vr:10 µA @ 6 V
- Operating Temperature:-65°C ~ 150°C
- Mounting Type:Through Hole
- Package / Case:DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If:1.2 V @ 200 mA
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Overview
The Microchip Technology 1N4738APE3/TR8 is a silicon 1.0-watt Zener diode housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 8.2 volts and a standard tolerance of plus or minus 5%. The device operates within a temperature range of -65°C to +150°C, features a maximum reverse current of 10 microamperes at 6 volts, and has a dynamic impedance of 4.5 ohms at the test current of 31 milliamperes.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals for through-hole applications
- Constructed with a void-free transfer molded thermosetting epoxy body
Applications
- Voltage regulation circuits
- Reference voltage sources
- Surge protection devices
Procurement Notes
Verify that the ordering suffix matches the required specifications. Confirm the presence of the 'e3' suffix indicates RoHS compliance and the 'TR' suffix denotes tape and reel packaging. Ensure the manufacturer designation aligns with the specific production source before finalizing procurement orders.
Selection Notes
Select this component when a 1-watt power dissipation rating and an 8.2-volt regulation point are required. Consider the plastic encapsulation for lower thermal resistance compared to glass-body options. Verify that the 5% voltage tolerance meets the circuit requirements without needing tighter precision variants.
Part Context
This part belongs to the 1N4728AP through 1N4764AP series of silicon Zener diodes manufactured by Microsemi. The series covers a wide voltage selection from 3.3 to 100 volts. These devices are JEDEC registered and offer various screening levels and package options to meet diverse electronic design needs.
Replacement Considerations
Consult the factory for surface mount equivalents such as SMAJ4738A or MLL4738A. Other manufacturers may offer compatible parts within the same JEDEC numbering system, but electrical characteristics should be verified against the official datasheet.
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