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Equivalent & Substitute Parts Reference: SMBJ5343B/TR13
Part Overview
SMBJ5343B/TR13 is a Zener diode from Microchip Technology, categorized under Diodes, Zener. It features a nominal Zener voltage of 7.5 V with 5 W maximum power dissipation, ±5% tolerance, and a surface-mount DO-214AA (SMB) package. The product status is Active, but its RoHS non-compliance may necessitate consideration of alternative models for applications requiring RoHS3 compliance or wider environmental certifications.
Substiute Parts
Key Parameters
| Parameter | SMBJ5343B/TR13 |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Diodes, Zener |
| Package / Case | DO-214AA, SMB |
| Supplier Device Package | SMBJ (DO-214AA) |
| Voltage - Zener (Nom) (Vz) | 7.5 V |
| Tolerance | ±5% |
| Power - Max | 5 W |
| Impedance (Max) (Zzt) | 1.5 Ohms |
| Current - Reverse Leakage @ Vr | 10 µA @ 5.4 V |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 1 A |
| Operating Temperature | -65°C ~ 150°C |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS non-compliant |
| MSL | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8541.10.0050 |
Substitute Part Grouping Explanation
Substitution is based strictly on matching key electrical and mechanical parameters: Zener voltage (Nom), tolerance, power rating, impedance, packaging (DO-214AA, SMB), mounting type, and operating temperature range. Compliance criteria (RoHS, REACH) affect substitute suitability for environmentally regulated applications.
Parameter Comparison
| Parameter | SMBJ5343B/TR13 | SMBJ5343B-TP | 3SMBJ5922B-TP |
|---|---|---|---|
| Manufacturer | Microchip Technology | Micro Commercial Co | Micro Commercial Co |
| Category | Diodes, Zener | Diodes, Zener | Diodes, Zener |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB |
| Supplier Device Package | SMBJ (DO-214AA) | DO-214AA (SMB) | DO-214AA (SMB) |
| Voltage - Zener (Nom) (Vz) | 7.5 V | 7.5 V | 7.5 V |
| Tolerance | ±5% | ±5% | ±5% |
| Power - Max | 5 W | 5 W | 3 W |
| Impedance (Max) (Zzt) | 1.5 Ohms | 1.5 Ohms | 3 Ohms |
| Current - Reverse Leakage @ Vr | 10 µA @ 5.4 V | 10 µA @ 5.7 V | 5 µA @ 6 V |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 1 A | 1.2 V @ 1 mA | 1.5 V @ 200 mA |
| Operating Temperature | -65°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 | EAR99 |
| HTSUS | 8541.10.0050 | 8541.10.0050 | 8541.10.0050 |
Engineering Selection Recommendations
Select SMBJ5343B-TP and 3SMBJ5922B-TP as substitutes if RoHS3 compliance and REACH unaffected status are required in the application. All sub-listed parts are in Active product status, support MSL 1 (Unlimited), and utilize the same DO-214AA (SMB) surface mount package.
Frequently Asked Questions (FAQ)
Q1: What parameters must match for safe substitution of Zener diodes?
A1: Required parameters for substitution include Zener voltage (Nom), tolerance, power rating, impedance, package / case, mounting type, and operating temperature range.
Q2: Are all listed substitute diodes in the DO-214AA (SMB) package?
A2: Yes, all specified substitutes are in the DO-214AA (SMB) surface mount package.
Q3: Can compliance requirements affect substitute selection?
A3: Yes, selection should consider RoHS and REACH statuses when compliance to environmental regulations is necessary.
Q4: Does difference in power rating affect substitution suitability?
A4: Substitute diodes should be evaluated against required power; for example, SMBJ5343B-TP matches the 5 W rating, while 3SMBJ5922B-TP is rated 3 W.
Q5: Are the operating temperature ranges equivalent between main and substitute parts?
A5: The main part supports -65°C ~ 150°C; the substitutes support -55°C ~ 150°C. This difference should be considered if the application approaches extreme low temperatures.
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