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1N5522B/TR
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Product Detailed Parameters
- Description：DIODE ZENER 4.7V 500MW DO204AH
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：22 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 2 V
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N5522B/TR is a low voltage avalanche Zener diode rated at 0.5 W, housed in a hermetically sealed axial-lead glass DO-35 package. It provides a nominal Zener voltage of 4.7 V with a tight tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse leakage current of 2.0 µA at 2.0 V. It is supplied in tape and reel packaging.
Feature Summary
- Hermetically sealed glass construction for environmental stability
- Tight voltage tolerance for precise regulation applications
- Internal metallurgical bond option available for enhanced reliability
- Qualified per MIL-PRF-19500/437 standards
Applications
- Voltage regulation over broad operating current ranges
- Reference voltage sources in precision circuits
- Protection against voltage transients
- Radiation-hardened electronic systems
Procurement Notes
Verify the specific suffix requirements for your application. The 'TR' suffix indicates tape and reel packaging. Confirm if the standard bond or metallurgical bond (-1) is required. Ensure the order includes the correct voltage tolerance designation. Check for RoHS compliance status as it varies by grade.
Selection Notes
Select this component when a stable 4.7 V reference is needed in harsh environments. The DO-35 package suits through-hole designs requiring high thermal endurance. Consider the ±5% tolerance for cost-sensitive precision applications. Evaluate the power derating curve for high-temperature operation scenarios.
Part Context
This part belongs to the 1N5518B through 1N5546B series of low voltage avalanche Zener diodes. The series covers voltages from 3.3 V to 33 V. These devices are designed for commercial and military-grade applications requiring reliable voltage regulation.
Replacement Considerations
Equivalent parts include JAN1N5522B-1 and JANTX1N5522B-1. Verify package compatibility and electrical parameters before substitution. Ensure the replacement meets the same MIL-PRF-19500/437 qualification levels.
