BZX84-B22-QR Equivalent & Substitute Parts

Part Overview

The BZX84-B22-QR is a 22 V Zener diode manufactured by Nexperia USA Inc., rated for 250 mW maximum power dissipation in a surface mount TO-236AB package. This component is classified as an automotive-grade device with AEC-Q101 qualification and is currently in active production status. The BZX84-B22-QR is used in voltage regulation and protection circuits where precise 22 V reference voltage is required.

Equivalent substitute parts are identified based on matching electrical specifications, package compatibility, and automotive qualification requirements. Substitute components must maintain identical nominal Zener voltage, power rating, mounting type, and compliance certifications to ensure functional interchangeability in circuit applications.

Substiute Parts

BZX84-B22-QR

Nexperia USA Inc.In Stock: 765BZX84-B22-QR Datasheet

Current PartRFQ

BZX84B22VLYFHT116

Rohm SemiconductorIn Stock: 4108BZX84B22VLYFHT116 Datasheet

Parametric EquivalentRFQ

BZX84B22VLYT116

Rohm SemiconductorIn Stock: 2495BZX84B22VLYT116 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZX84-B22-QR are identified through parametric equivalence based on the following critical specifications:

Substitution Criteria:

• Nominal Zener voltage: 22 V (exact match required)
• Maximum power dissipation: 250 mW (exact match required)
• Maximum impedance: 55 Ohms (exact match required)
• Operating temperature range: 150°C (TJ) minimum (exact match required)
• Mounting type: Surface Mount (exact match required)
• Package designation: TO-236-3, SC-59, SOT-23-3 (exact match required)
• Automotive grade classification (exact match required)
• AEC-Q101 qualification (exact match required)
• RoHS3 compliance (exact match required)

The substitute parts BZX84B22VLYFHT116 and BZX84B22VLYT116, both manufactured by Rohm Semiconductor, meet all critical electrical and mechanical parameters. Tolerance specifications differ slightly (±1.82% versus ±2%), and reverse leakage current specifications differ (100 nA versus 50 nA), but these variations remain within acceptable substitution parameters for automotive applications.

Parameter Comparison

Engineering Selection Recommendations

BZX84B22VLYFHT116 (Rohm Semiconductor): This substitute part carries explicit automotive grade classification and AEC-Q101 qualification, matching the primary part's compliance profile. The component is actively produced with 4056 units in stock. The tolerance specification of ±1.82% is tighter than the primary part's ±2%, providing improved voltage regulation accuracy. Reverse leakage current is specified at 100 nA, which is higher than the primary part but remains within acceptable operational limits for automotive applications. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) indicates superior moisture handling characteristics.

BZX84B22VLYT116 (Rohm Semiconductor): This substitute part meets all critical electrical and mechanical parameters with identical impedance, power rating, and operating temperature specifications. The component is actively produced with 2398 units in stock. Automotive grade and AEC-Q101 qualification are not explicitly specified in the provided data, which represents a deviation from the primary part's compliance documentation. The tolerance and reverse leakage specifications match BZX84B22VLYFHT116. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) is provided.

For applications requiring explicit automotive qualification documentation, BZX84B22VLYFHT116 is the preferred substitute. Both Rohm parts are suitable for general substitution where automotive compliance is not contractually mandated.

Frequently Asked Questions (FAQ)

Q: Can BZX84B22VLYFHT116 and BZX84B22VLYT116 be used interchangeably with BZX84-B22-QR?

A: Both Rohm parts meet the critical electrical specifications (22 V nominal voltage, 250 mW power rating, 55 Ohms maximum impedance) and package requirements (TO-236-3/SOT-23-3 surface mount). BZX84B22VLYFHT116 carries explicit automotive grade and AEC-Q101 qualification matching the primary part. BZX84B22VLYT116 meets electrical parameters but lacks documented automotive qualification in the provided specifications.

Q: What is the difference in tolerance between the main part and substitutes?

A: The BZX84-B22-QR specifies ±2% tolerance, while both Rohm substitutes specify ±1.82% tolerance. The Rohm parts provide tighter voltage regulation accuracy. This difference does not prevent substitution; it represents an improvement in performance specification.

Q: How do reverse leakage current specifications differ?

A: The BZX84-B22-QR specifies 50 nA maximum reverse leakage at 15.4 V. Both Rohm substitutes specify 100 nA maximum reverse leakage at 15 V. The higher leakage specification in substitute parts does not prevent functional substitution in automotive voltage regulation and protection circuits.

Q: Are the package dimensions identical across all three parts?

A: All three parts use the TO-236-3, SC-59, SOT-23-3 package designation, confirming mechanical and electrical pin compatibility for printed circuit board assembly.

Q: What is the significance of Moisture Sensitivity Level (MSL) 1 (Unlimited)?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions and does not require special handling, storage, or baking procedures prior to soldering. This specification applies to both Rohm substitute parts.

Q: Which substitute part should be selected for automotive applications requiring AEC-Q101 certification?

A: BZX84B22VLYFHT116 carries explicit AEC-Q101 qualification in the provided specifications, making it the appropriate selection for applications with automotive compliance requirements.

Q: Are there inventory considerations when selecting a substitute?

A: The BZX84-B22-QR has 751 units in stock. BZX84B22VLYFHT116 has 4056 units in stock, and BZX84B22VLYT116 has 2398 units in stock. Both Rohm substitutes offer higher inventory availability.