SML4753AHE3_A/I Equivalent & Substitute Parts Reference

Part Overview

The SML4753AHE3_A/I is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division, categorized under Diodes, Zener, and provided in Tape & Reel packaging. Its functional attributes include a Zener voltage of 36 V, maximum power dissipation of 1 W, and a ±5% voltage tolerance. The component features automotive grade qualification (AEC-Q101) and is designed for surface mount applications with the DO-214AC (SMA) case. The part maintains active product status and conforms to RoHS3 and REACH requirements.

It is necessary to identify alternative models to support supply continuity, facilitate cross-referencing, and ensure inventory flexibility without deviating from the defined electrical and mechanical parameters.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	Description	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Operating Temperature	Grade	Qualification	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	Product Status
SML4753AHE3_A/I	Vishay General Semiconductor - Diodes Division	Diodes, Zener	Tape & Reel (TR)	DIODE ZENER 36V 1W DO214AC	36 V	±5%	1 W	50 Ohms	5 µA @ 27.4 V	150°C	Automotive	AEC-Q101	Surface Mount	DO-214AC, SMA	DO-214AC (SMA)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active

Substitute Part Grouping Explanation

Parametric equivalence for Zener diodes in this category is determined by strict matching of these key parameters: Zener voltage (Nominal), tolerance, maximum power dissipation, maximum impedance, reverse leakage current at specified voltage, operating temperature, qualification grade (automotive/AEC-Q101 when required), mounting type, package/case specification, and compliance status. Substitution is allowed only when all listed parameters are aligned with those of the main part.

Parameter Comparison

Parameter	SML4753AHE3_A/I	SML4753A-E3/61	SML4753AHE3_A/H
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Description	DIODE ZENER 36V 1W DO214AC	DIODE ZENER 36V 1W DO214AC	DIODE ZENER 36V 1W DO214AC
Voltage - Zener (Nom) (Vz)	36 V	36 V	36 V
Tolerance	±5%	±5%	±5%
Power - Max	1 W	1 W	1 W
Impedance (Max) (Zzt)	50 Ohms	50 Ohms	50 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 27.4 V	5 µA @ 27.4 V	5 µA @ 27.4 V
Operating Temperature	150°C	150°C	150°C
Grade	Automotive	-	Automotive
Qualification	AEC-Q101	-	AEC-Q101
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Supplier Device Package	DO-214AC (SMA)	DO-214AC (SMA)	DO-214AC (SMA)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active

Engineering Selection Recommendations

Selection of equivalent and substitute Zener diodes, such as SML4753A-E3/61 and SML4753AHE3_A/H, is supported where product status is active and compliance requirements including ROHS3 and REACH are met. For applications demanding automotive grade and AEC-Q101 qualification, only substitute parts listing these certifications should be selected.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for substitution with SML4753AHE3_A/I Zener diode?
A1: Substitution requires matching voltage rating, tolerance, power dissipation, impedance, reverse leakage current, operating temperature, mounting type, package/case specification, and relevant qualification grade and compliance status.

Q2: Are all listed substitutes suitable for automotive applications?
A2: Only substitutes with the automotive grade and AEC-Q101 qualification explicitly listed can be selected for automotive use.

Q3: Is there compatibility in mounting and package between substitutes and SML4753AHE3_A/I?
A3: All substitutes use the same DO-214AC (SMA) surface mount package for direct compatibility.

Q4: How does product status affect substitute selection?
A4: Only parts with active product status are suitable for substitution.

Q5: Are there any compliance differences among the equivalents?
A5: All equivalents and substitutes provided are ROHS3 compliant and REACH unaffected, ensuring compatibility with standard environmental and regulatory requirements.

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