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quality Voltage Regulation Zener Diode luJing 1SMA4744 with Low Dynamic Impedance and Surge Current Capacity factory
quality Voltage Regulation Zener Diode luJing 1SMA4744 with Low Dynamic Impedance and Surge Current Capacity factory

Voltage Regulation Zener Diode luJing 1SMA4744 with Low Dynamic Impedance and Surge Current Capacity

Key Attributes
Model Number: 1SMA4744
Product Custom Attributes
Mfr. Part #:
1SMA4744
Package:
SMA
Product Description

Product Overview

The 1SMA4728A~1SMA4764A series are Zener diodes designed for voltage regulation applications. They offer low reverse leakage, low Zener impedance, and high stability and reliability. These diodes are suitable for general-purpose use and feature a case that denotes the cathode end with a color band. They are available in a range of Zener voltages from 3.3V to 100V, with a peak pulse power of 1000mW.

Product Attributes

  • Case: SMA
  • Polarity: Color band denotes cathode end
  • Mounting Position: Any
  • Origin: China (implied by website domain)

Technical Specifications

Part Number Nominal Zener Voltage (Vz @ IzT) Test Current (IzT) Max. Dynamic Impedance (ZzT @ IzT) Max. Reverse Leakage Current (Ir @ Vr) Max. Surge Current (Ism) Unit
1SMA4728A~1SMA4764A 3.3 --- 100 - - - - V
1SMA4728A 3.3 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4729A 3.6 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4730A 3.9 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4731A 4.3 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4732A 4.7 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4733A 5.1 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4734A 5.6 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4735A 6.2 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4736A 6.8 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4737A 7.5 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4738A 8.2 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4739A 9.1 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4740A 10 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4741A 11 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4742A 12 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4743A 13 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4744A 15 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4745A 16 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4746A 18 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4747A 20 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4748A 22 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4749A 24 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4750A 27 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4751A 30 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4752A 33 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4753A 36 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4754A 39 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4755A 43 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4756A 47 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4757A 51 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4758A 56 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4759A 62 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4760A 68 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4761A 75 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4762A 82 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4763A 91 7.5 mA 60 10 A @ 1.0 V 2.5 A
1SMA4764A 100 7.5 mA 60 10 A @ 1.0 V 2.5 A
Parameter Symbol Value Unit
Power Dissipation PD 1000 mW
Operating junction temperature TJ 150 C
Storage temperature range TSTG -65 to +150 C
Maximum Continuous Power Dissipation P D 1.0 W
Reverse Leakage Current (rated IzT) Ir 10 A
Test Voltage Vr 1.0 V
Maximum Surge Current (8.3ms single half sine wave superimposed on rated IzT) Ism 2.5 A
Dimensions Value Unit
Length 5.28 mm
Width 4.95 mm
Height 2.40 mm
Diameter 1.95 mm
Lead Diameter 0.203 mm

Notes:

  • Valid provided that electrodes are kept at ambient temperature.
  • Based on DC measurement at thermal equilibrium.
  • Surge current is a non-repetitive 8.3ms pulse width square wave or equivalent sine wave superimposed on IzT per JEDEC method.

Ratings and Characteristic Curves:

  • FIG1: Maximum Continuous Power Dissipation
  • FIG2: Typical Zener Impedance
  • FIG3: Typical Temperature Coefficients
  • FIG4: Typical Instantaneous Forward Characteristics
  • FIG5: Typical Reverse Characteristics

2512021845_luJing-1SMA4744_C53058734.pdf

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