1SMA4762 Equivalent & Substitute Parts

Part Overview

The 1SMA4762 is a Zener diode rated at 82 V, 1 W, manufactured by SMC Diode Solutions. This surface mount component operates across a temperature range of -65°C to 150°C and is packaged in the DO-214AC (SMA) form factor. The device is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified for applications requiring identical electrical performance, mechanical compatibility, and regulatory compliance. Substitutes enable procurement flexibility when primary inventory is unavailable or when alternative manufacturer specifications meet application requirements.

Substiute Parts

1SMA4762

SMC Diode SolutionsIn Stock: 8391SMA4762 Datasheet

Current PartRFQ

SML4762A-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 9410SML4762A-E3/61 Datasheet

Parametric EquivalentRFQ

SML4762AHE3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 2587SML4762AHE3_A/H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1SMA4762 are qualified based on the following electrical and mechanical parameters:

Substitution Criteria:

• Zener voltage: 82 V nominal with ±5% tolerance
• Power dissipation: 1 W maximum
• Impedance: 200 Ohms maximum
• Reverse leakage current: 5 µA @ 62.2 V
• Forward voltage: 1.2 V maximum @ 200 mA
• Operating temperature range: -65°C to 150°C
• Package type: DO-214AC (SMA) surface mount
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

All identified substitutes meet these parameters and are functionally interchangeable in applications designed for the 1SMA4762. Substitutes are sourced from Vishay General Semiconductor - Diodes Division and maintain identical electrical specifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

1SMA4762 (SMC Diode Solutions)

• Primary part with active product status
• ROHS3 compliant
• Standard industrial grade
• Suitable for general-purpose applications

SML4762A-E3/61 (Vishay General Semiconductor)

• Parametric equivalent with identical electrical specifications
• ROHS3 compliant
• Standard industrial grade
• Higher inventory availability (9300 units)
• REACH unaffected status

SML4762AHE3_A/H (Vishay General Semiconductor)

• Parametric equivalent with identical electrical specifications
• ROHS3 compliant
• Automotive grade with AEC-Q101 qualification
• Suitable for automotive and high-reliability applications
• REACH unaffected status
• Lower inventory availability (2497 units)

Selection between standard and automotive-grade substitutes depends on application requirements. Automotive-grade parts (SML4762AHE3_A/H) provide additional qualification for demanding environments. Standard-grade substitutes (SML4762A-E3/61) are appropriate for general industrial use.

Frequently Asked Questions (FAQ)

Q: Can SML4762A-E3/61 be used as a direct replacement for 1SMA4762? A: Yes. Both parts share identical electrical parameters (82 V nominal, 1 W power rating, ±5% tolerance, 200 Ohms impedance, 5 µA reverse leakage) and are packaged in DO-214AC (SMA) surface mount form factor. Mechanical and electrical compatibility is confirmed.

Q: What is the difference between SML4762A-E3/61 and SML4762AHE3_A/H? A: Both parts are electrically identical. SML4762AHE3_A/H carries automotive grade designation with AEC-Q101 qualification, making it suitable for automotive and high-reliability applications. SML4762A-E3/61 is standard industrial grade. Selection depends on application environment and reliability requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. The 1SMA4762 and both substitute parts (SML4762A-E3/61 and SML4762AHE3_A/H) are ROHS3 compliant.

Q: Do the substitute parts have the same moisture sensitivity rating? A: Yes. All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage and handling.

Q: Can the automotive-grade SML4762AHE3_A/H be used in non-automotive applications? A: Yes. Automotive-grade components meet or exceed standard industrial specifications. AEC-Q101 qualification provides additional assurance of reliability and can be used in any application where the 1SMA4762 is specified.

Q: Are there any temperature range differences between the parts? A: No. All parts operate across the identical temperature range of -65°C to 150°C.

Q: What is the significance of the DO-214AC package designation? A: DO-214AC is the industry standard package designation for SMA surface mount diodes. All listed parts use this package, ensuring mechanical compatibility with existing PCB layouts and assembly processes.