Microsemi Corp. Diodes - Zener - Single - JANTX1N5521B-1 JANTX1N5521B-1

Manufacturer: Microsemi Corporation
Win Source Part Number: 761165-JANTX1N5521B-1
Series: Military, MIL-PRF-19500/437
Packaging: Bulk
Mounting Style: Through Hole
Operating Temperature Range: -65°C ~ 175°C
Package: DO-204AH, DO-35, Axial
Tolerance: ±5%
Power - Max: 500mW
Current - Reverse Leakage @ Vr: 3μA @ 1.5V
Voltage - Zener (Nom) (Vz): 4.3V
Family Name: 1N5521B
Categories: Discrete Semiconductor Products
Manufacturer Package: DO-35
Voltage - Forward (Vf) (Maximum) @ If: 1.1V @ 200mA
Impedance (Maximum) (Zzt): 18 Ohm
Alternative Parts (Cross-Reference): 1N749ARL; 1N749ATA; 1N749ARA1;
Introduction Date: January 05, 2001
ECCN: EAR99
Country of Origin: Philippines
Estimated EOL Date: 2026
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 94 pct.
Supply and Demand Status: Limited
Quantity per package: 1

Zener Diode, 4.3V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-204AH, HERMETIC SEALED, GLASS, DO-35, 2 PIN Product overview: JANTX1N5521B-1 from Microsemi is a Zener Diode for voltage regulation, reference clamping, overvoltage protection, and compact board-level circuit design. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Zener, 4.3V, 0.5W. Search-friendly keywords include Zener diode, voltage reference, clamp, regulation, Zener, 4.3V, 0.5W. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 2086-JANTX1N5521B-1 can be used for catalog matching and distributor lookup.