PDZ2.7B-QF Equivalent & Substitute Parts

Part Overview

The PDZ2.7B-QF is a Zener diode manufactured by Nexperia USA Inc., rated at 2.7 V nominal with 400 mW power dissipation in a surface mount SOD-323 package. This component is classified as Obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The part carries automotive-grade qualification (AEC-Q101) and is ROHS3 compliant, making it suitable for regulated applications requiring long-term component availability.

Substiute Parts

PDZ2.7B-QF

Nexperia USA Inc.In Stock: 1118PDZ2.7B-QF Datasheet

Current PartRFQ

PDZ2.4B-QX

Nexperia USA Inc.In Stock: 1077PDZ2.4B-QX Datasheet

MFR RecommendedRFQ

PDZ2.7B,115

Nexperia USA Inc.In Stock: 4062PDZ2.7B,115 Datasheet

Parametric EquivalentRFQ

PDZ2.7B,135

Nexperia USA Inc.In Stock: 10900PDZ2.7B,135 Datasheet

Parametric EquivalentRFQ

PDZ2.7B-QX

Nexperia USA Inc.In Stock: 954PDZ2.7B-QX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PDZ2.7B-QF is determined by the following critical parameters:

Parametric Equivalents (Direct Substitutes): Parts that maintain identical electrical specifications across all key parameters are classified as parametric equivalents. These include PDZ2.7B,115, PDZ2.7B,135, and PDZ2.7B-QX. All three parts share the same nominal Zener voltage (2.7 V), tolerance (±2%), maximum power rating (400 mW), impedance (100 Ohms maximum), reverse leakage current (20 µA @ 1 V), forward voltage (1.1 V @ 100 mA), and operating temperature (150°C). The differences among these parts are limited to packaging format (Tape & Reel) and product status (Active versus Obsolete), with no impact on electrical performance.

Manufacturer Recommended Substitute (Voltage Variant): The PDZ2.4B-QX is designated as a manufacturer-recommended substitute despite a different nominal Zener voltage (2.4 V versus 2.7 V). This part maintains identical power rating (400 mW), impedance (100 Ohms), forward voltage characteristics (1.1 V @ 100 mA), and operating temperature (150°C). The voltage difference of 0.3 V represents a 11% deviation and is applicable only in applications where the lower Zener voltage is functionally acceptable.

All substitute parts maintain the same package format (SOD-323), surface mount mounting type, automotive grade classification, AEC-Q101 qualification, ROHS3 compliance, and MSL rating (1 - Unlimited).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Parametric Equivalents): PDZ2.7B,115 and PDZ2.7B,135 are direct parametric equivalents to the PDZ2.7B-QF. Both parts are manufactured by Nexperia USA Inc., maintain identical electrical specifications, and carry Active product status. These parts are suitable for direct replacement in all applications where the PDZ2.7B-QF was originally specified. PDZ2.7B,135 offers the highest inventory availability (10,885 pcs) among all substitutes. PDZ2.7B-QX is also a parametric equivalent with identical electrical performance and maintains automotive-grade AEC-Q101 qualification, with 944 pcs in stock.

Secondary Substitute (Voltage Variant): PDZ2.4B-QX is designated as a manufacturer-recommended substitute by Nexperia USA Inc. This part differs in nominal Zener voltage (2.4 V versus 2.7 V) and reverse leakage current (50 µA @ 1 V versus 20 µA @ 1 V). Selection of this part is appropriate only in applications where the lower Zener voltage specification is functionally compatible with circuit design requirements. The part maintains automotive-grade qualification and AEC-Q101 certification.

Compliance Considerations: All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and are REACH Unaffected. For automotive applications requiring AEC-Q101 qualification, PDZ2.7B-QX and PDZ2.4B-QX are explicitly qualified. PDZ2.7B,115 and PDZ2.7B,135 do not specify automotive grade or AEC-Q101 qualification in the provided data; verification of qualification status is necessary for regulated automotive applications.

Frequently Asked Questions (FAQ)

Q: Can PDZ2.7B,115 and PDZ2.7B,135 be used interchangeably with PDZ2.7B-QF?

A: Yes. Both parts are parametric equivalents with identical electrical specifications: 2.7 V nominal Zener voltage, ±2% tolerance, 400 mW power rating, 100 Ohms maximum impedance, 20 µA reverse leakage current, and 1.1 V forward voltage. The differences are limited to packaging format (Tape & Reel) and product status (Active). Electrical performance in circuit operation is identical.

Q: What is the difference between PDZ2.7B-QX and PDZ2.7B,115?

A: Both parts share identical electrical specifications and SOD-323 packaging. PDZ2.7B-QX carries explicit automotive-grade classification and AEC-Q101 qualification, while PDZ2.7B,115 does not specify these qualifications in the provided data. For non-automotive applications, both parts are functionally equivalent. For automotive applications, PDZ2.7B-QX is the appropriate selection.

Q: When should PDZ2.4B-QX be selected instead of the 2.7 V alternatives?

A: PDZ2.4B-QX is selected only when the circuit design requires a 2.4 V Zener voltage. The 0.3 V difference represents an 11% reduction from the original 2.7 V specification. Additionally, PDZ2.4B-QX exhibits higher reverse leakage current (50 µA @ 1 V versus 20 µA @ 1 V). This part is designated as a manufacturer-recommended substitute, indicating Nexperia USA Inc. has validated its use in specific applications; however, circuit-level compatibility must be confirmed.

Q: Are all substitute parts available in the same package format?

A: Yes. All substitute parts (PDZ2.7B,115, PDZ2.7B,135, PDZ2.7B-QX, and PDZ2.4B-QX) are packaged in SC-76, SOD-323 format with surface mount mounting type. No PCB layout modifications are required when substituting between these parts.

Q: What is the inventory status of each substitute part?

A: PDZ2.7B,135 has the highest availability with 10,885 pcs in stock. PDZ2.7B,115 has 3,955 pcs available. PDZ2.7B-QX has 944 pcs in stock. PDZ2.4B-QX has 1,017 pcs available. All parts are listed as New Original In Stock.

Q: Do all substitute parts meet automotive qualification requirements?

A: PDZ2.7B-QX and PDZ2.4B-QX explicitly carry automotive-grade classification and AEC-Q101 qualification. PDZ2.7B,115 and PDZ2.7B,135 do not specify automotive grade or AEC-Q101 qualification in the provided specifications. For applications requiring automotive qualification, PDZ2.7B-QX is the appropriate parametric equivalent, or PDZ2.4B-QX if the 2.4 V voltage specification is acceptable.

Q: Is the PDZ2.7B-QF still available for purchase?

A: The PDZ2.7B-QF is classified as Obsolete. However, 1,105 pcs are listed as New Original In Stock. For long-term procurement and design continuity, substitution with an Active-status part (PDZ2.7B,115, PDZ2.7B,135, or PDZ2.7B-QX) is recommended.