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UDZ5V6B-7

5.6V 200mW Zener diode, +/-2%, 60Ohm Zzt, SOD-323, precision regulation

6250

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Manufacturer Part：

UDZ5V6B-7

Package：

SOD-323 / SC-76 (1.80 x 1.40 x 1.10 mm)

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Description

Product Overview

The UDZ5V6B-7 from Diodes Incorporated is a 5.6V, 200mW surface-mount precision Zener diode in an SOD-323 (SC-76) package. With +/-2% tolerance, 60 Ohm maximum impedance, and sharp breakdown characteristics, it is designed for voltage regulation and reference applications.

Key Specifications

Zener Voltage (VZ) 5.6 V (5.49-5.73V @ 5mA)
Tolerance +/-2%
Power Dissipation 200 mW
Zener Impedance (ZZT) 60 Ohm max @ 5mA
Leakage Current (IR) 1 uA max @ 2.5V
IZT (test current) 5 mA
IZK (knee current) 0.5 mA
Package SOD-323 (SC-76)
Operating Temperature -65°C to +150°C

Features

  • 5.6V precision Zener diode with tight +/-2% voltage tolerance
  • Ultra-small SOD-323 surface-mount package for compact designs
  • Sharp breakdown characteristics with 60 Ohm maximum impedance
  • Low 1uA reverse leakage current at 2.5V for precise regulation
  • Lead-free, halogen-free, antimony-free, RoHS compliant

Applications

  • Voltage regulation and reference in low-power circuits
  • Overvoltage protection and clamping in signal lines
  • Bias voltage stabilization in amplifier and comparator circuits

The UDZ5V6B-7 from Diodes Incorporated is a surface-mount precision Zener diode in the ultra-small SOD-323 (SC-76) package. The device features a nominal Zener voltage of 5.6V with a tight +/-2% tolerance (5.49V to 5.73V at IZT=5mA), making it suitable for precision voltage reference and regulation applications. The sharp breakdown characteristics and low 60 Ohm maximum dynamic impedance at 5mA ensure stable voltage regulation over varying load conditions. The 200mW power dissipation rating supports typical low-power biasing and reference applications. The low 1uA reverse leakage current at 2.5V provides good isolation below the breakdown threshold. The SOD-323 package is approximately half the footprint of the SOT-23, enabling high-density PCB designs.

The UDZ5V6B-7 is a Zener diode operating in the reverse breakdown region. (1) Reverse Breakdown: When the reverse voltage across the diode exceeds the Zener voltage (5.6V), the diode enters avalanche breakdown and conducts current while maintaining a nearly constant voltage across its terminals. The +/-2% tolerance ensures this voltage is predictable. (2) Dynamic Impedance: The 60 Ohm maximum Zener impedance represents the slope of the V-I curve at the operating point (5mA). Lower impedance means better voltage regulation against load current variations. (3) Knee Region: Below the knee current (0.5mA), the Zener voltage drops significantly below the rated value. The device should be operated above IZK for accurate regulation. (4) Power Limit: The 200mW maximum power dissipation limits the operating current to P/VZ = 200mW/5.6V = 35.7mA maximum at 25C ambient.

Pin Name Function
1 Cathode Cathode (indicated by band on body)
2 Anode Anode
  • 5.6V voltage reference and bias regulation in low-power analog circuits
  • Overvoltage clamping on 5V signal lines in SOD-323 footprint
  • Comparator and op-amp reference voltage generation with +/-2% tolerance
Manufacturer Part Number Package Notes
Diodes Inc BZX84C5V6-7-F SOT-23-3 5.6V Zener, SOT-23, higher power
Nexperia BZX84-C5V6,215 SOT-23-3 5.6V, 300mW
onsemi MMSZ5V6T1G SOD-123 5.6V, 500mW
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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