SML4760HE3_A/I Zener Diode Equivalent & Substitute Parts

Part Overview

The SML4760HE3_A/I is a 68 V, 1 W Zener diode manufactured by Vishay General Semiconductor - Diodes Division in the DO-214AC (SMA) surface mount package. This component is classified as an active product with AEC-Q101 automotive qualification and ROHS3 compliance. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

SML4760HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1031SML4760HE3_A/I Datasheet

Current PartRFQ

SML4760-E3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 8100SML4760-E3/5A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SML4760HE3_A/I is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Zener voltage: 68 V nominal
• Tolerance: ±5%
• Maximum power dissipation: 1 W
• Maximum impedance: 150 Ohms
• Reverse leakage current: 5 µA @ 51.7 V

Mechanical Parameters (Must Match):

• Package type: DO-214AC (SMA)
• Mounting type: Surface Mount

Compliance & Qualification (Must Match or Exceed):

• RoHS3 compliance
• Automotive grade classification
• AEC-Q101 qualification

The substitute part SML4760-E3/5A meets all electrical and mechanical requirements and maintains equivalent compliance certifications. Both parts share the same base product number (SML4760) and are manufactured by the same supplier, ensuring design and functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: SML4760HE3_A/I

The SML4760HE3_A/I is the specified component and should be used when available. This part carries AEC-Q101 automotive qualification and is actively manufactured by Vishay General Semiconductor - Diodes Division. Current inventory status indicates 982 pieces in stock.

Substitute Selection: SML4760-E3/5A

The SML4760-E3/5A is a direct parametric equivalent suitable for use when the primary part is unavailable. This substitute maintains identical electrical specifications, mechanical compatibility, and compliance certifications. Both parts are manufactured by the same supplier under the same base product number (SML4760), ensuring design continuity. Inventory availability for the substitute is higher at 7990 pieces in stock. The substitute part is also active and carries equivalent ROHS3 compliance and automotive-grade classification.

Selection Criteria:

• Use SML4760HE3_A/I as the primary choice for new designs and production orders
• Use SML4760-E3/5A when supply constraints require substitution
• Both parts are suitable for automotive applications requiring AEC-Q101 qualification
• No design modifications are required when substituting between these parts
• Both parts are compatible with existing PCB layouts and assembly processes for DO-214AC (SMA) packages

Frequently Asked Questions (FAQ)

Q: Can SML4760-E3/5A be used as a direct replacement for SML4760HE3_A/I?

A: Yes. The SML4760-E3/5A is a direct parametric equivalent. All electrical parameters, mechanical specifications, and compliance certifications are identical. No circuit modifications or PCB layout changes are required.

Q: What is the difference between SML4760HE3_A/I and SML4760-E3/5A?

A: Both parts are 68 V, 1 W Zener diodes in DO-214AC (SMA) packages manufactured by Vishay. The difference lies in the part number suffix, which indicates different packaging or tape configurations. The electrical and thermal performance are identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both SML4760HE3_A/I and SML4760-E3/5A carry automotive grade classification and AEC-Q101 qualification, making them suitable for automotive circuit protection and voltage regulation applications.

Q: What does the DO-214AC (SMA) package specification mean?

A: DO-214AC is the industry-standard package designation for surface mount Zener diodes. SMA is the alternate designation for the same package. Both terms refer to the same physical form factor and pin configuration.

Q: Are there any temperature or environmental differences between these parts?

A: No. Both parts operate across the identical temperature range of -65°C to 150°C and share the same moisture sensitivity level (MSL 1 - Unlimited), indicating no special storage or handling requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical electrical parameters, impedance characteristics, and reverse leakage specifications ensure functional interchangeability in all circuit applications. PCB footprints and assembly processes remain unchanged.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance indicates that the actual Zener voltage will fall within the range of 64.6 V to 71.4 V. Both substitute parts maintain this tolerance specification, ensuring consistent voltage regulation performance.

Q: Is RoHS3 compliance important for component selection?

A: Yes. RoHS3 compliance is a regulatory requirement for electronic components in many markets. Both parts meet this requirement, ensuring compliance with environmental and material restriction directives.