BZX584B4V3-TP Equivalent & Substitute Parts

Part Overview

The BZX584B4V3-TP is a surface mount Zener diode manufactured by Micro Commercial Co, rated at 4.3 V nominal Zener voltage with 150 mW maximum power dissipation in SOD-523 package. The device is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility are maintained across the specified operating range, allowing for component interchangeability in circuit applications where the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

BZX584B4V3-TP

Micro Commercial CoIn Stock: 1017BZX584B4V3-TP Datasheet

Current PartRFQ

BZX584B4V3HE3-TP

Micro Commercial CoIn Stock: 9178BZX584B4V3HE3-TP Datasheet

Parametric EquivalentRFQ

BZX584B4V3 RSG

Taiwan Semiconductor CorporationIn Stock: 8706BZX584B4V3 RSG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZX584B4V3-TP are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Zener voltage: 4.3 V nominal
• Maximum power dissipation: 150 mW
• Impedance (Max): 90 Ohms
• Reverse leakage current: 3 µA @ 1 V
• Forward voltage: 900 mV @ 10 mA
• Operating temperature range: -55°C to 150°C
• Package type: SOD-523
• Mounting configuration: Surface Mount
• RoHS3 compliance status

Tolerance variations within ±2% to ±2.09% are acceptable as both values fall within standard Zener diode tolerance specifications for this voltage class. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical performance and represent logistical variations only. Automotive qualification (AEC-Q101) on substitute parts provides additional reliability assurance without restricting general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

BZX584B4V3HE3-TP (Micro Commercial Co)

This substitute maintains identical electrical specifications to the primary part with improved tolerance (±2% versus ±2.09%). The device carries AEC-Q101 automotive qualification, indicating enhanced reliability screening and qualification testing. This part is suitable for applications requiring automotive-grade components or where additional reliability assurance is beneficial. Packaging remains Tape & Reel format, maintaining supply chain compatibility with the primary part.

BZX584B4V3 RSG (Taiwan Semiconductor Corporation)

This substitute provides equivalent electrical performance across all critical parameters. The device is supplied in Cut Tape and Digi-Reel packaging format, which differs from the primary part's Tape & Reel packaging. This packaging variation affects handling and assembly logistics but does not impact electrical performance or circuit functionality. Selection of this part is appropriate when alternative sourcing from Taiwan Semiconductor Corporation is required or when Cut Tape packaging format aligns with assembly operations.

Both substitute parts maintain Active product status and full RoHS3 compliance, ensuring regulatory alignment with the primary part across current and future environmental standards.

Frequently Asked Questions (FAQ)

Q: Can BZX584B4V3HE3-TP be used as a direct replacement for BZX584B4V3-TP?

A: Yes. Both parts share identical Zener voltage (4.3 V), maximum power rating (150 mW), impedance (90 Ohms), reverse leakage current (3 µA @ 1 V), forward voltage (900 mV @ 10 mA), and operating temperature range (-55°C to 150°C). The tolerance difference (±2% versus ±2.09%) is within acceptable variation for Zener diode applications. Both are packaged in SOD-523 and mounted as surface mount devices.

Q: What is the difference between BZX584B4V3 RSG and the primary part?

A: Electrical specifications are identical across all critical parameters. The primary difference is packaging format: BZX584B4V3 RSG is supplied in Cut Tape and Digi-Reel format, while BZX584B4V3-TP is supplied in Tape & Reel format. This affects component handling and assembly processes but does not alter electrical performance or circuit compatibility.

Q: Does AEC-Q101 qualification on BZX584B4V3HE3-TP restrict its use to automotive applications?

A: No. AEC-Q101 qualification indicates the part meets automotive industry reliability and testing standards. Parts with this qualification are suitable for both automotive and general-purpose applications. The qualification represents an additional assurance level and does not limit application scope.

Q: Are all three parts RoHS3 compliant?

A: Yes. BZX584B4V3-TP, BZX584B4V3HE3-TP, and BZX584B4V3 RSG are all RoHS3 compliant, meeting current environmental and hazardous substance restrictions.

Q: Can packaging format affect circuit performance?

A: No. Packaging format (Tape & Reel versus Cut Tape & Digi-Reel) affects supply chain logistics, component handling, and assembly processes only. Electrical performance and circuit functionality remain identical regardless of packaging format.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. The part does not require special moisture control during storage, handling, or assembly, simplifying logistics and reducing storage requirements.

Q: Are tolerance differences between ±2.09% and ±2% significant for circuit design?

A: Both tolerance values are within standard specifications for 4.3 V Zener diodes. The ±2% tolerance on substitute parts represents tighter control and is functionally equivalent or superior to the ±2.09% specification on the primary part. Circuit designs accommodating ±2.09% tolerance automatically accommodate ±2% tolerance.