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

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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: