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PDZ12B-QZ Equivalent & Substitute Parts
Part Overview
The PDZ12B-QZ is a Zener diode manufactured by Nexperia USA Inc., rated for 12 V nominal Zener voltage with 400 mW maximum power dissipation in a surface mount SOD-323 package. This component is classified as an Active product with AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility requirements are met across alternative packaging formats or manufacturer offerings within the same product family.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 12 | V |
| Tolerance | ±2% | % |
| Power - Max | 400 | mW |
| Impedance (Max) | 10 | Ohms |
| Current - Reverse Leakage @ Vr | 100 | nA @ 9 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 | V @ 100 mA |
| Operating Temperature | 150 | °C (TJ) |
| Package / Case | SC-76, SOD-323 | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the PDZ12B-QZ is determined by strict equivalence across the following electrical and mechanical parameters:
- Zener voltage: 12 V nominal
- Tolerance: ±2%
- Maximum power dissipation: 400 mW
- Package type: SOD-323 (SC-76)
- Mounting configuration: Surface mount
- Reverse leakage current: 100 nA @ 9 V
- Forward voltage: 1.1 V @ 100 mA
- Operating temperature range: 150°C (TJ)
- Compliance standards: ROHS3, REACH Unaffected, EAR99
The PDZ12B,115 is a parametric equivalent within the same manufacturer's product line, differing only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). All electrical specifications and mechanical dimensions remain identical.
Parameter Comparison
| Parameter | PDZ12B-QZ | PDZ12B,115 |
|---|---|---|
| Manufacturer | Nexperia USA Inc. | Nexperia USA Inc. |
| Category | Diodes, Zener | Diodes, Zener |
| Voltage - Zener (Nom) | 12 V | 12 V |
| Tolerance | ±2% | ±2% |
| Power - Max | 400 mW | 400 mW |
| Impedance (Max) | 10 Ohms | 10 Ohms |
| Current - Reverse Leakage @ Vr | 100 nA @ 9 V | 100 nA @ 9 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 100 mA | 1.1 V @ 100 mA |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) |
| Package / Case | SC-76, SOD-323 | SC-76, SOD-323 |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | SOD-323 | SOD-323 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.10.0050 | 8541.10.0050 |
| Packaging Format | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® |
| Product Status | Active | Active |
Engineering Selection Recommendations
The PDZ12B-QZ and PDZ12B,115 are direct parametric equivalents manufactured by Nexperia USA Inc. Both components maintain identical electrical performance specifications and are qualified to the same compliance standards (ROHS3, REACH Unaffected, EAR99). Selection between these parts is determined by packaging and supply chain requirements:
- PDZ12B-QZ is supplied in Tape & Reel (TR) format, suitable for high-volume automated assembly operations.
- PDZ12B,115 is supplied in Cut Tape (CT) & Digi-Reel® format, suitable for lower-volume applications or mixed-component procurement.
Both parts are Active products with unlimited moisture sensitivity level (MSL 1), indicating no special storage or handling requirements. The choice between these equivalents does not affect circuit performance, thermal characteristics, or regulatory compliance.
Frequently Asked Questions (FAQ)
Q: Can PDZ12B,115 be used as a direct replacement for PDZ12B-QZ in production assembly?
A: Yes. Both parts are parametric equivalents with identical electrical specifications, operating temperature range, and package dimensions (SOD-323). The difference is packaging format only. Verify that your assembly equipment can accommodate the supplied packaging format (Cut Tape & Digi-Reel® for PDZ12B,115 versus Tape & Reel for PDZ12B-QZ).
Q: Are there any compliance or certification differences between these parts?
A: No. Both PDZ12B-QZ and PDZ12B,115 carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and EAR99 classification. Both are AEC-Q101 qualified automotive-grade components.
Q: What is the significance of the ±2% tolerance specification?
A: The ±2% tolerance indicates the maximum deviation of the actual Zener voltage from the nominal 12 V specification. This tolerance applies to both the main part and its substitute, ensuring consistent voltage regulation performance across the specified operating range.
Q: Does moisture sensitivity level affect storage or handling?
A: No. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity. These components do not require special desiccant packaging, controlled humidity storage, or time-limited shelf life management.
Q: Are the electrical characteristics identical between PDZ12B-QZ and PDZ12B,115?
A: Yes. All electrical parameters are identical: 12 V nominal Zener voltage, 400 mW maximum power dissipation, 10 Ohms maximum impedance, 100 nA reverse leakage current at 9 V, and 1.1 V maximum forward voltage at 100 mA.
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