PZM9.1NB2,115 Zener Diode Equivalent & Substitute Parts Reference

Part Overview

The NXP USA Inc. PZM9.1NB2,115 is a 9.1 V, 300 mW, ±2% tolerance surface mount Zener diode supplied in the SMT3 (TO-236-3, SC-59, SOT-23-3, MPAK) package. Classified under the Diodes, Zener category, this device is now Obsolete. When a part reaches End-of-Life or is no longer available in supply channels, identifying compatible substitute Zener diodes is critical for sustaining manufacturing continuity and ensuring long-term service of electronic assemblies.

Substiute Parts

PZM9.1NB2,115

NXP USA Inc.In Stock: 817PZM9.1NB2,115 Datasheet

Current PartRFQ

BZX84B9V1-7-F

Diodes IncorporatedIn Stock: 23256BZX84B9V1-7-F Datasheet

DirectRFQ

BZX84-B9V1,215

NXP USA Inc.In Stock: 41951BZX84-B9V1,215 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute Zener diodes are selected based strictly on matching the following key electrical and mechanical parameters: Voltage - Zener (Nom) (Vz), Tolerance, Power - Max, Impedance (Max) (Zzt), Current - Reverse Leakage @ Vr, Voltage - Forward (Vf) (Max) @ If, Operating Temperature, Mounting Type, Package / Case, RoHS Status, REACH Status, and Moisture Sensitivity Level (MSL). These parameters determine direct interchangeability and suitability in the same PCB layout.

Parameter Comparison

Engineering Selection Recommendations

Selection of BZX84B9V1-7-F is based on its "Active" product status, ROHS3 compliance, REACH unaffected status, and identical Moisture Sensitivity Level (1, Unlimited), ensuring compliance for lead-free and automotive applications. The BZX84-B9V1,215 part also remains "Active" but does not specify compliance documentation or MSL in the provided parameters. All substitute parts match the required mechanical (package) and electrical (voltage, tolerance, power rating, leakage current, and impedance) parameters where specified.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters to match when selecting a substitute for PZM9.1NB2,115?
A: Key substitution criteria are Voltage - Zener (Nom) (Vz), Tolerance, Power - Max, Impedance (Max) (Zzt), Current - Reverse Leakage @ Vr, Voltage - Forward (Vf) (Max) @ If, Operating Temperature, Mounting Type, and Package / Case.

Q2: Are the SOT-23-3 and SMT3 packages mechanically compatible?
A: The packages TO-236-3, SC-59, SOT-23-3, SMT3, and MPAK are mechanically equivalent based on the information provided.

Q3: Why is it necessary to use a substitute part?
A: PZM9.1NB2,115 is marked Obsolete, making ongoing procurement difficult or unsustainable.

Q4: Do the listed substitutes meet RoHS and REACH compliance requirements?
A: BZX84B9V1-7-F is ROHS3 Compliant and REACH Unaffected. BZX84-B9V1,215 does not specify RoHS or REACH status in the provided parameters.

Q5: Is there any difference in power dissipation among substitutes?
A: BZX84B9V1-7-F matches the original 300 mW rating, while BZX84-B9V1,215 specifies 250 mW Power - Max.

Q6: Is Moisture Sensitivity Level (MSL) relevant for SMT assembly?
A: Yes. For PZM9.1NB2,115 and BZX84B9V1-7-F, MSL is specified as 1 (Unlimited), indicating optimal suitability for surface mount production. MSL is not provided for BZX84-B9V1,215 in the input.