PDZ20B-QF Equivalent & Substitute Parts

Part Overview

The PDZ20B-QF is a Zener diode manufactured by Nexperia USA Inc., designed for voltage regulation and protection applications in electronic circuits. This surface mount component operates at a nominal Zener voltage of 20 V with a maximum power dissipation of 400 mW. The device is classified as Active product status and carries automotive-grade qualification under AEC-Q101 standards, making it suitable for demanding automotive and industrial applications. Identifying equivalent substitute parts is necessary when the primary part number becomes unavailable, when supply chain optimization is required, or when alternative sourcing from qualified manufacturers is needed while maintaining identical electrical and mechanical performance.

Substiute Parts

PDZ20B-QF

Nexperia USA Inc.In Stock: 970PDZ20B-QF Datasheet

Current PartRFQ

PDZ20B,115

NXP SemiconductorsIn Stock: 100108PDZ20B,115 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PDZ20B-QF are determined by strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Voltage - Zener (Nom): 20 V
• Tolerance: ±2%
• Power - Max: 400 mW
• Impedance (Max): 20 Ohms
• Current - Reverse Leakage @ Vr: 50 nA @ 15 V
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 100 mA
• Operating Temperature: 150°C (TJ)

Mechanical Parameters (Must Match Exactly):

• Package / Case: SC-76, SOD-323
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Manufacturer differences do not affect substitution eligibility when all electrical and mechanical specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

The PDZ20B,115 manufactured by NXP Semiconductors is a direct parametric equivalent to the PDZ20B-QF. Both parts are Active product status and share identical electrical specifications across all measured parameters, including Zener voltage, power rating, impedance, leakage current, and forward voltage characteristics. Both components are packaged in the SC-76 SOD-323 surface mount package with identical moisture sensitivity classification.

The PDZ20B-QF carries AEC-Q101 automotive qualification, which is a critical compliance requirement for automotive applications. When selecting between these equivalent parts, compliance requirements and application-specific certifications must be verified against the end-use system requirements. Both parts maintain ROHS3 compliance and REACH unaffected status, supporting environmental regulatory requirements.

Selection between these equivalent parts should be based on supply chain availability, lead time requirements, and any application-specific qualification or certification mandates. The electrical and mechanical interchangeability is complete.

Frequently Asked Questions (FAQ)

Q: Can PDZ20B,115 be used as a direct replacement for PDZ20B-QF in all applications?

A: Yes, the PDZ20B,115 is a direct parametric equivalent. All electrical specifications, including Zener voltage (20 V), power rating (400 mW), impedance (20 Ohms), and operating temperature (150°C) are identical. The package type (SOD-323) and mounting configuration (surface mount) are also identical. However, if the application requires AEC-Q101 automotive qualification, the specific qualification status of the substitute part must be verified against system requirements.

Q: Are there any differences in packaging between PDZ20B-QF and PDZ20B,115?

A: No. Both parts use the SC-76 SOD-323 surface mount package. The moisture sensitivity level is identical at MSL 1 (Unlimited). PCB layout, reflow profiles, and handling procedures remain unchanged when substituting between these parts.

Q: What is the significance of the ±2% tolerance specification?

A: The ±2% tolerance indicates the accuracy of the nominal 20 V Zener voltage. This specification ensures that the actual Zener voltage will fall within the range of 19.6 V to 20.4 V across the specified operating conditions. This tolerance is identical for both the main part and substitute, ensuring equivalent voltage regulation performance.

Q: How do I verify that PDZ20B,115 meets my application requirements?

A: Confirm that all electrical parameters match your circuit design specifications: 20 V Zener voltage, 400 mW maximum power dissipation, and 150°C maximum junction temperature. Verify that the SOD-323 surface mount package is compatible with your PCB design and assembly process. If automotive qualification is required, confirm that the substitute part carries the necessary certifications for your specific application.

Q: What is the difference between PDZ20B-QF and PDZ20B,115 part numbering?

A: PDZ20B-QF is the Nexperia USA Inc. part number designation, while PDZ20B,115 is the NXP Semiconductors part number designation. Both refer to the same Zener diode with identical electrical and mechanical specifications. The different part number formats reflect different manufacturer distribution channels or packaging configurations, but the core component specifications are equivalent.