BZX84-A18,235 Equivalent & Substitute Parts

Part Overview

The BZX84-A18,235 is an 18 V, 250 mW Zener diode manufactured by Nexperia USA Inc. in a Surface Mount TO-236AB package. This component is classified as an Active product with Automotive grade qualification (AEC-Q101) and is ROHS3 compliant. The device is designed for voltage regulation and protection applications requiring precise 18 V reference voltage with ±1% tolerance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across packaging formats and supplier configurations.

Substiute Parts

BZX84-A18,235

Nexperia USA Inc.In Stock: 10554BZX84-A18,235 Datasheet

Current PartRFQ

BZX84-A18,215

NXP USA Inc.In Stock: 2360BZX84-A18,215 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX84-A18,235 is determined by equivalence across the following critical parameters:

Electrical Specifications:

• Zener voltage: 18 V nominal
• Tolerance: ±1%
• Maximum power dissipation: 250 mW
• Impedance (maximum): 45 Ohms
• Reverse leakage current: 50 nA @ 700 mV
• Forward voltage: 900 mV @ 10 mA

Environmental & Compliance:

• Operating temperature range: -65°C to 150°C
• Automotive grade qualification: AEC-Q101
• RoHS compliance: ROHS3

Mechanical Compatibility:

• Mounting type: Surface Mount
• Package designation: TO-236-3, SC-59, SOT-23-3

Parts meeting all electrical specifications and compliance requirements are classified as direct substitutes regardless of packaging format (Tape & Reel versus Bulk) or supplier device package designation, provided the base product number and electrical characteristics remain identical.

Parameter Comparison

Engineering Selection Recommendations

The BZX84-A18,215 is a direct electrical and mechanical equivalent to the BZX84-A18,235. Both components share identical electrical specifications, operating temperature range, Automotive grade classification, and AEC-Q101 qualification. Both maintain ROHS3 compliance and are manufactured by the same entity (Nexperia/NXP).

The primary distinction between these parts is packaging format: the BZX84-A18,235 is supplied in Tape & Reel format, while the BZX84-A18,215 is supplied in Bulk format. This difference does not affect electrical performance or mechanical compatibility in the TO-236-3/SOT-23-3 package footprint.

Selection between these parts should be based on procurement requirements and supply chain availability. Both parts are Active products with current inventory availability and are suitable for applications requiring 18 V Zener regulation with Automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can the BZX84-A18,215 be used as a direct replacement for the BZX84-A18,235?

A: Yes. Both parts are electrically identical with matching Zener voltage (18 V), tolerance (±1%), power rating (250 mW), impedance (45 Ohms), and all other electrical parameters. Both are Automotive grade with AEC-Q101 qualification and operate across the same temperature range (-65°C to 150°C).

Q: What is the difference between these two part numbers?

A: The BZX84-A18,235 is supplied in Tape & Reel packaging, while the BZX84-A18,215 is supplied in Bulk packaging. The electrical specifications and mechanical package (TO-236-3/SOT-23-3) are identical.

Q: Are both parts suitable for Automotive applications?

A: Yes. Both the BZX84-A18,235 and BZX84-A18,215 carry Automotive grade classification and AEC-Q101 qualification, making them suitable for automotive circuit protection and voltage regulation applications.

Q: Do these parts have the same moisture sensitivity level?

A: The BZX84-A18,235 specifies Moisture Sensitivity Level 1 (Unlimited). The BZX84-A18,215 does not specify MSL in the provided data. For applications with specific moisture handling requirements, verify MSL specifications with the manufacturer.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the same Surface Mount package (TO-236-3/SOT-23-3) with identical footprints and pinouts, allowing direct PCB substitution without layout modifications.

Q: What is the base product number for these parts?

A: The base product number is BZX84-A18. The suffixes (-235 and -215) indicate different packaging and supplier configurations of the same core Zener diode design.