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Equivalent & Substitute Parts Reference for Vishay SML4762HE3_A/I Zener Diode
Part Overview
The Vishay General Semiconductor SML4762HE3_A/I is an automotive-grade, surface mount Zener diode with a nominal Zener voltage of 82 V, 1 W power rating, and ±10% voltage tolerance in the DO-214AC (SMA) package. The device is qualified to AEC-Q101 standards and is suitable for automotive and other high-reliability applications. It is critical to identify parametric equivalent and substitute models to ensure design continuity in cases of supply constraints, qualification requirements, or compliance preferences.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SML4762HE3_A/I |
| Manufacturer | Vishay General Semiconductor - Diodes Division |
| Category | Diodes, Zener |
| Voltage - Zener (Nom) (Vz) | 82 V |
| Tolerance | ±10% |
| Power - Max | 1 W |
| Impedance (Max) (Zzt) | 200 Ohms |
| Current - Reverse Leakage @ Vr | 5 µA @ 62.2 V |
| Operating Temperature | -65°C ~ 150°C |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| Mounting Type | Surface Mount |
| Package / Case | DO-214AC, SMA |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution is based strictly on adherence to the following key parameters: nominal Zener voltage (82 V), voltage tolerance (±10% or ±5%), power rating (1 W), impedance (200 Ohms max), reverse leakage current (5 µA @ 62.2 V), operating temperature range (-65°C ~ 150°C), automotive qualification (AEC-Q101 where present), mounting type (Surface Mount), package (DO-214AC, SMA), RoHS compliance, moisture sensitivity level (1, unlimited), and product status (Active). Only parts matching these defined parameters are included as substitutes.
Parameter Comparison
| Manufacturer Part Number | Voltage - Zener (Nom) (Vz) | Tolerance | Power - Max | Impedance (Max) (Zzt) | Current - Reverse Leakage @ Vr | Operating Temperature | Grade | Qualification | Mounting Type | Package / Case | RoHS Status | Moisture Sensitivity Level (MSL) | REACH Status | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SML4762HE3_A/I | 82 V | ±10% | 1 W | 200 Ohms | 5 µA @ 62.2 V | -65°C ~ 150°C | Automotive | AEC-Q101 | Surface Mount | DO-214AC, SMA | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected | Active |
| SML4762-E3/61 | 82 V | ±10% | 1 W | 200 Ohms | 5 µA @ 62.2 V | -65°C ~ 150°C | — | — | Surface Mount | DO-214AC, SMA | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected | Active |
| SML4762A-E3/61 | 82 V | ±5% | 1 W | 200 Ohms | 5 µA @ 62.2 V | -65°C ~ 150°C | — | — | Surface Mount | DO-214AC, SMA | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected | Active |
| SML4762AHE3_A/H | 82 V | ±5% | 1 W | 200 Ohms | 5 µA @ 62.2 V | -65°C ~ 150°C | Automotive | AEC-Q101 | Surface Mount | DO-214AC, SMA | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected | Active |
Engineering Selection Recommendations
All substitute parts listed share identical product status (Active), RoHS compliance (ROHS3 Compliant), moisture sensitivity (MSL 1, Unlimited), and REACH unaffected status. SML4762AHE3_A/H also maintains automotive qualification (AEC-Q101), matching the main part’s grade and qualification. Selection should be made strictly according to the required grade, qualification, and tolerance levels indicated in the application’s compliance and documentation requirements.
Frequently Asked Questions (FAQ)
Q: What are the main criteria for selecting a substitute for SML4762HE3_A/I?
A: Substitutes must match the voltage rating, power rating, tolerance, package, mounting type, compliance standards, and product status.
Q: Is tolerance the only difference among parametric equivalents?
A: Tolerance varies among listed substitutes (±10% and ±5%); all other specified electrical and mechanical parameters match.
Q: Are all substitutes automotive qualified?
A: Only SML4762AHE3_A/H provides automotive grade and AEC-Q101 qualification, matching the main part’s automotive category.
Q: Do all substitutes share the same package and mounting type?
A: Yes; all substitutes are provided in the DO-214AC (SMA) surface mount package.
Q: Are the substitutes compliant with RoHS and REACH regulations?
A: Yes; all substitute part numbers are ROHS3 compliant and REACH unaffected.
Q: Can moisture sensitivity level affect substitution?
A: No; all parts have Moisture Sensitivity Level 1 (Unlimited), so storage and handling requirements are identical.
Q: Where does reverse leakage current specification fit into substitution criteria?
A: All listed parts specify identical reverse leakage current ratings, ensuring electrical compatibility.
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