PDZ3.3BF Zener Diode Equivalent & Substitute Parts

Part Overview

The PDZ3.3BF is an active surface mount zener diode manufactured by Nexperia USA Inc., designed for voltage regulation and protection applications. This component operates at a nominal zener voltage of 3.53 V with a maximum power dissipation of 400 mW in the SOD-323 package. The part is ROHS3 compliant and carries an unlimited moisture sensitivity level (MSL 1), making it suitable for standard manufacturing environments. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

PDZ3.3BF

Nexperia USA Inc.In Stock: 11035PDZ3.3BF Datasheet

Current PartRFQ

PDZ3.3BZ

Nexperia USA Inc.In Stock: 29870PDZ3.3BZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PDZ3.3BF are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are defined by the following parameters:

• Voltage - Zener (Nom): 3.53 V
• Tolerance: ±2%
• Power - Max: 400 mW
• Impedance (Max): 1000 Ohms
• Current - Reverse Leakage @ Vr: 5 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)

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. The PDZ3.3BZ meets all specified criteria and is therefore a valid substitute for the PDZ3.3BF.

Parameter Comparison

Engineering Selection Recommendations

Both the PDZ3.3BF and PDZ3.3BZ are active products from Nexperia USA Inc. with identical electrical and mechanical specifications. Selection between these parts is based on availability and supply chain considerations rather than technical performance differences. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The PDZ3.3BZ currently maintains higher inventory levels (29,844 pcs) compared to the PDZ3.3BF (10,940 pcs), which may influence procurement decisions for high-volume applications. Both parts carry the same ECCN (EAR99) and HTSUS (8541.10.0050) classifications for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the PDZ3.3BZ be used as a direct replacement for the PDZ3.3BF?

A: Yes. The PDZ3.3BZ is a parametric equivalent with identical electrical characteristics, including zener voltage (3.53 V), power rating (400 mW), impedance (1000 Ohms), and forward voltage specifications. Both parts use the same SOD-323 package and mounting type.

Q: Are there any differences in compliance or certifications between these parts?

A: No. Both parts carry identical RoHS3 compliance status, REACH unaffected designation, and moisture sensitivity level (MSL 1). They share the same ECCN and HTSUS classifications.

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

A: The ±2% tolerance defines the acceptable variation in the nominal zener voltage of 3.53 V. This tolerance applies equally to both the PDZ3.3BF and PDZ3.3BZ, ensuring consistent voltage regulation performance across the specified operating range.

Q: Does the SOD-323 package differ between these parts?

A: No. Both parts use the SC-76 / SOD-323 surface mount package with identical mechanical and electrical interface specifications. PCB footprints and reflow profiles are interchangeable.

Q: What is the maximum operating temperature for these zener diodes?

A: The maximum junction temperature (TJ) is 150°C for both parts. This specification defines the thermal limit for continuous operation and must be considered in thermal design calculations.

Q: Are these parts suitable for high-volume production?

A: Both parts are active products with substantial inventory availability. The PDZ3.3BZ offers higher current stock levels, which may provide supply chain advantages for large-scale manufacturing programs.