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Equivalent & Substitute Parts Reference for Microchip Technology SMBJ4748/TR13
Part Overview
The SMBJ4748/TR13 from Microchip Technology is a Zener diode featuring a nominal Zener voltage of 22 V, rated for up to 2 W of power dissipation. It is designed for surface mount applications in the DO-214AA (SMBJ) package. The part is active and currently available in stock. Identifying substitute models is critical for maintaining supply continuity, resolving RoHS compliance requirements, and ensuring design compatibility in cases where the original part cannot be sourced.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Category | Voltage - Zener (Nom) (Vz) | Tolerance | Power - Max | Impedance (Max) (Zzt) | Current - Reverse Leakage @ Vr | Voltage - Forward (Vf) (Max) @ If | Operating Temperature | Mounting Type | Package / Case | Supplier Device Package | RoHS Status | Product Status | Moisture Sensitivity Level (MSL) | REACH Status | ECCN | HTSUS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SMBJ4748/TR13 | Microchip Technology | Diodes, Zener | 22 V | ±10% | 2 W | 23 Ohms | 5 µA @ 16.7 V | 1.2 V @ 200 mA | -65°C ~ 150°C | Surface Mount | DO-214AA, SMB | SMBJ (DO-214AA) | RoHS non-compliant | Active | 1 (Unlimited) | REACH Unaffected | EAR99 | 8541.10.0050 |
| 1SMB5933BT3G | onsemi | Diodes, Zener | 22 V | ±5% | 3 W | 17.5 Ohms | 1 µA @ 16.7 V | 1.5 V @ 200 mA | -65°C ~ 150°C | Surface Mount | DO-214AA, SMB | SMB | ROHS3 Compliant | Active | 1 (Unlimited) | REACH Unaffected | EAR99 | 8541.10.0050 |
Substitute Part Grouping Explanation
Substitution is strictly determined by comparison of critical electrical and mechanical parameters. For Zener diodes, this includes nominal Zener voltage, tolerance, maximum power dissipation, maximum impedance, reverse leakage current, forward voltage at specified current, operating temperature range, package and mounting type. Compliance status, moisture sensitivity level, and REACH certification may also be used to determine regulatory or supply suitability.
Key parameters used for grouping:
- Voltage - Zener (Nom) (Vz)
- Tolerance
- Power - Max
- Impedance (Max) (Zzt)
- Current - Reverse Leakage @ Vr
- Voltage - Forward (Vf) (Max) @ If
- Operating Temperature
- Mounting Type
- Package / Case
- RoHS Status
- Product Status
- Moisture Sensitivity Level (MSL)
- REACH Status
Parameter Comparison
| Parameter | SMBJ4748/TR13 | 1SMB5933BT3G |
|---|---|---|
| Manufacturer | Microchip Technology | onsemi |
| Voltage - Zener (Nom) (Vz) | 22 V | 22 V |
| Tolerance | ±10% | ±5% |
| Power - Max | 2 W | 3 W |
| Impedance (Max) (Zzt) | 23 Ohms | 17.5 Ohms |
| Current - Reverse Leakage @ Vr | 5 µA @ 16.7 V | 1 µA @ 16.7 V |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 200 mA | 1.5 V @ 200 mA |
| Operating Temperature | -65°C ~ 150°C | -65°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Product Status | Active | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Both SMBJ4748/TR13 and 1SMB5933BT3G are listed as active, with identical mounting, package type, and temperature range. Onsemi 1SMB5933BT3G is ROHS3 compliant while Microchip Technology SMBJ4748/TR13 is RoHS non-compliant. For projects requiring RoHS compliance, 1SMB5933BT3G is suitable. Both parts have Moisture Sensitivity Level 1 (Unlimited) and are REACH unaffected.
Frequently Asked Questions (FAQ)
Q: Can 1SMB5933BT3G substitute SMBJ4748/TR13 in terms of Zener voltage?
A: Both parts have a nominal Zener voltage of 22 V.
Q: Is package compatibility maintained between SMBJ4748/TR13 and 1SMB5933BT3G?
A: Both use the DO-214AA, SMB surface-mount package.
Q: How do tolerances compare between the two parts?
A: SMBJ4748/TR13 has a ±10% tolerance; 1SMB5933BT3G has a ±5% tolerance.
Q: Are both parts suitable for use under the same operating temperature range?
A: Both are rated for -65°C to 150°C operation.
Q: Does RoHS compliance differ between the substitute options?
A: SMBJ4748/TR13 is RoHS non-compliant; 1SMB5933BT3G is ROHS3 compliant.
Q: What is the moisture sensitivity for both parts?
A: Moisture Sensitivity Level is 1 (Unlimited) for both diodes.
Q: Is reverse leakage current specification identical?
A: SMBJ4748/TR13: 5 µA @ 16.7 V; 1SMB5933BT3G: 1 µA @ 16.7 V.
Q: What is the maximum power rating difference?
A: SMBJ4748/TR13 is rated at 2 W; 1SMB5933BT3G at 3 W.
Q: Does ECCN and HTSUS classification match?
A: Both diodes are classified as EAR99 and HTSUS 8541.10.0050.
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