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PDZ3.9BF Zener Diode Equivalent & Substitute Parts
Part Overview
The PDZ3.9BF is an active surface mount zener diode manufactured by Nexperia USA Inc., classified within the Diodes, Zener category. This component is a 4.16 V, 400 mW zener diode in SOD-323 package format, designed for voltage regulation and protection applications in electronic circuits. The part maintains active product status with 10,837 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to supply constraints, design flexibility, or inventory availability.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 4.16 | V |
| Tolerance | ±2% | % |
| Power - Max | 400 | mW |
| Impedance (Max) | 500 | Ohms |
| Current - Reverse Leakage @ Vr | 3 | µA @ 1 V |
| Voltage - Forward (Vf) (Max) @ If | 900 | mV @ 10 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 PDZ3.9BF is permissible when the replacement component meets all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:
Electrical Parameters (Must Match):
- Zener voltage: 4.16 V nominal
- Tolerance: ±2%
- Maximum power dissipation: 400 mW
- Maximum impedance: 500 Ohms
- Reverse leakage current: 3 µA @ 1 V
- Forward voltage: 900 mV maximum @ 10 mA
- Operating temperature: 150°C (TJ)
Mechanical Parameters (Must Match):
- Package type: SOD-323 (SC-76)
- Mounting type: Surface Mount
- Tape & Reel packaging format
Compliance Parameters (Must Match):
- RoHS3 compliance
- Moisture Sensitivity Level 1
- Active product status
All substitute parts listed in this document satisfy these requirements without exception.
Parameter Comparison
| Parameter | PDZ3.9BF | PDZ3.9BZ | Match |
|---|---|---|---|
| Manufacturer | Nexperia USA Inc. | Nexperia USA Inc. | Yes |
| Category | Diodes, Zener | Diodes, Zener | Yes |
| Voltage - Zener (Nom) | 4.16 V | 4.16 V | Yes |
| Tolerance | ±2% | ±2% | Yes |
| Power - Max | 400 mW | 400 mW | Yes |
| Impedance (Max) | 500 Ohms | 500 Ohms | Yes |
| Current - Reverse Leakage @ Vr | 3 µA @ 1 V | 3 µA @ 1 V | Yes |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA | Yes |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | Yes |
| Package / Case | SC-76, SOD-323 | SC-76, SOD-323 | Yes |
| Mounting Type | Surface Mount | Surface Mount | Yes |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Yes |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Yes |
| Product Status | Active | Active | Yes |
Engineering Selection Recommendations
The PDZ3.9BZ is a direct parametric equivalent to the PDZ3.9BF. Both components are manufactured by Nexperia USA Inc. and share identical electrical specifications, mechanical packaging, and compliance certifications. Selection between these two part numbers is based on inventory availability and supply chain considerations.
PDZ3.9BF is recommended when this specific part number is available in required quantities and delivery timeframes.
PDZ3.9BZ is recommended as a substitute when PDZ3.9BF availability is constrained. The PDZ3.9BZ maintains 31,075 units in inventory, providing enhanced supply security. Both parts are ROHS3 compliant, REACH unaffected, and carry identical electrical performance characteristics.
No design modifications, circuit adjustments, or additional testing protocols are required when substituting between these part numbers. Direct pin-for-pin and functional replacement is applicable in all applications where PDZ3.9BF is specified.
Frequently Asked Questions (FAQ)
Q: Can PDZ3.9BZ be used as a direct replacement for PDZ3.9BF in production?
A: Yes. The PDZ3.9BZ is a direct substitute with identical electrical parameters, package format, and compliance certifications. No circuit modifications or design changes are required.
Q: Are there differences in the SOD-323 package between these parts?
A: No. Both PDZ3.9BF and PDZ3.9BZ use the SC-76 SOD-323 package format with identical mechanical dimensions and surface mount compatibility.
Q: Do both parts meet the same RoHS and REACH requirements?
A: Yes. Both PDZ3.9BF and PDZ3.9BZ are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory standards.
Q: What is the difference between PDZ3.9BF and PDZ3.9BZ?
A: The difference is limited to the part number suffix (BF versus BZ). Both components share the same base product number PDZ3.9 and are manufactured by Nexperia USA Inc. with identical electrical and mechanical specifications.
Q: Can these parts be used interchangeably in automated assembly?
A: Yes. Both parts are supplied in Tape & Reel packaging format suitable for automated pick-and-place assembly equipment. No equipment reconfiguration is required when switching between these part numbers.
Q: What is the moisture sensitivity level for both parts?
A: Both PDZ3.9BF and PDZ3.9BZ carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related storage or handling restrictions.
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