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PDZ3.3B-QF Equivalent & Substitute Parts Reference
Part Overview
The PDZ3.3B-QF from Nexperia USA Inc. is a Zener Diode, 3.3 V nominal voltage, rated at 400 mW, surface mount in SOD-323 package. The part is automotive grade and AEC-Q101 qualified, compliant with ROHS3 and REACH standards. Product status is listed as Obsolete. It is necessary to identify alternative models to ensure ongoing supply, compliance, and design support in cases where the original part is unavailable. Replacement parts must meet matching electrical, mechanical, and regulatory criteria.
Substiute Parts
Key Parameters
| Parameter | PDZ3.3B-QF Value |
|---|---|
| Manufacturer | Nexperia USA Inc. |
| Category | Diodes, Zener |
| Voltage - Zener (Nom) (Vz) | 3.3 V |
| Tolerance | ±2% |
| Power - Max | 400 mW |
| Impedance (Max) (Zzt) | 95 Ohms |
| Current - Reverse Leakage @ Vr | 5 µA @ 1 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 100 mA |
| Operating Temperature | 150°C (TJ) |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| Mounting Type | Surface Mount |
| Package / Case | SC-76, SOD-323 |
| Supplier Device Package | SOD-323 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8541.10.0050 |
Substitute Part Grouping Explanation
Substitute parts are identified by matching the key electrical parameters (Zener voltage, tolerance, power rating, impedance, reverse leakage current, forward voltage, operating temperature), mechanical parameters (mounting type, package/case, supplier device package), and compliance/certification criteria (automotive grade, AEC-Q101, ROHS3, REACH, MSL, ECCN, HTSUS). Only parts within the Diodes, Zener category, offered by Nexperia USA Inc., and with matching or permitted parameter variations are listed.
Parameter Comparison
| Parameter | PDZ3.3B-QF | PDZ3.3B,115 | PDZ3.3B-QX | PDZ4.3B-QX |
|---|---|---|---|---|
| Manufacturer | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. |
| Category | Diodes, Zener | Diodes, Zener | Diodes, Zener | Diodes, Zener |
| Voltage - Zener (Nom) (Vz) | 3.3 V | 3.3 V | 3.3 V | 4.3 V |
| Tolerance | ±2% | ±2% | ±2% | ±2% |
| Power - Max | 400 mW | 400 mW | 400 mW | 400 mW |
| Impedance (Max) (Zzt) | 95 Ohms | 95 Ohms | 95 Ohms | 90 Ohms |
| Current - Reverse Leakage @ Vr | 5 µA @ 1 V | 5 µA @ 1 V | 5 µA @ 1 V | 3 µA @ 1 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 100 mA | 1.1 V @ 100 mA | 1.1 V @ 100 mA | 1.1 V @ 100 mA |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) |
| Grade | Automotive | Automotive | Automotive | |
| Qualification | AEC-Q101 | AEC-Q101 | AEC-Q101 | |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SC-76, SOD-323 | SC-76, SOD-323 | SC-76, SOD-323 | SC-76, SOD-323 |
| Supplier Device Package | SOD-323 | SOD-323 | SOD-323 | SOD-323 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 | EAR99 | EAR99 |
| HTSUS | 8541.10.0050 | 8541.10.0050 | 8541.10.0050 | 8541.10.0050 |
Engineering Selection Recommendations
PDZ3.3B-QF is listed as obsolete. All substitute and parametric equivalent parts are ROHS3 compliant and REACH unaffected, supporting regulatory and environmental requirements. AEC-Q101 qualified, automotive-grade substitutes ensure direct replacement for designs requiring automotive reliability and certification. All substitutes share the same SOD-323 package, surface mount form factor, and meet MSL 1 criteria, supporting unlimited moisture sensitivity storage and standard supply chain practices.
Frequently Asked Questions (FAQ)
Which substitute is an exact electrical equivalent for PDZ3.3B-QF?
PDZ3.3B,115 and PDZ3.3B-QX match the Zener voltage, tolerance, power rating, impedance, reverse leakage, forward voltage, and mechanical parameters.
What package and mounting options do the substitute parts offer?
All substitute parts are surface mount devices in the SC-76, SOD-323 package, enabling form-fit compatibility.
Are substitute parts automotive qualified?
PDZ3.3B-QX and PDZ4.3B-QX are AEC-Q101 qualified and automotive grade as specified.
Does the parametric equivalent differ in environmental or regulatory compliance?
All listed substitutes are ROHS3 compliant and REACH unaffected, matching the original PDZ3.3B-QF.
What variations exist among substitutes in Zener voltage?
PDZ3.3B,115 and PDZ3.3B-QX maintain the same 3.3 V rating. PDZ4.3B-QX provides a 4.3 V rating, which differs from the original. Select based on application voltage requirements.
Is there any difference in impedance or leakage?
Impedance and leakage values are matched for 3.3 V substitutes. The 4.3 V substitute specifies slightly lower maximum impedance and reverse leakage.
Are all listed substitutes available in production status?
PDZ3.3B,115, PDZ3.3B-QX, and PDZ4.3B-QX are indicated with 'Active' product status and in-stock inventory.
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