PLVA650A/ZLR Zener Diode Equivalent & Substitute Parts

Part Overview

The PLVA650A/ZLR is a 5 V, 250 mW Zener diode manufactured by Nexperia USA Inc. in a surface mount TO-236AB package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part carries automotive-grade qualification (AEC-Q101) and maintains ROHS3 compliance.

Substiute Parts

PLVA650A/ZLR

Nexperia USA Inc.In Stock: 1035PLVA650A/ZLR Datasheet

Current PartRFQ

PLVA650A-QR

Nexperia USA Inc.In Stock: 863PLVA650A-QR Datasheet

Parametric EquivalentRFQ

BZX84B5V1-7-F

Diodes IncorporatedIn Stock: 8085BZX84B5V1-7-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PLVA650A/ZLR is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage nominal value: 5 V or 5.1 V (within acceptable circuit tolerance)
• Power dissipation capability: minimum 250 mW
• Surface mount package compatibility: TO-236-3, SC-59, or SOT-23-3
• Automotive qualification: AEC-Q101 certification required
• RoHS compliance: ROHS3 status maintained

Substitute Categories:

Parametric Equivalent: PLVA650A-QR maintains identical electrical specifications (5 V nominal, 250 mW, ±4% tolerance) with the same package footprint. This part is manufactured by the same supplier (Nexperia USA Inc.) and carries active product status, making it a direct functional replacement.

Similar Substitute: BZX84B5V1-7-F operates at 5.1 V nominal (0.1 V deviation from primary specification) with enhanced power rating (300 mW) and improved impedance characteristics (60 Ohms versus 700 Ohms). This part is manufactured by Diodes Incorporated and maintains automotive qualification and RoHS compliance. The voltage deviation of 0.1 V represents a 2% variance from the primary part specification and requires circuit-level validation for applications with strict voltage tolerance requirements.

Parameter Comparison

Engineering Selection Recommendations

PLVA650A-QR (Parametric Equivalent): This part is the primary substitute for PLVA650A/ZLR applications. It maintains identical electrical specifications, package footprint, and automotive qualification. The part carries active product status with established supply chain availability. Selection of PLVA650A-QR eliminates design modification requirements and ensures direct functional compatibility.

BZX84B5V1-7-F (Similar Substitute): This part is suitable for applications where the 0.1 V nominal voltage deviation (5.1 V versus 5 V) is acceptable within circuit design margins. The part offers enhanced power dissipation capability (300 mW versus 250 mW) and superior impedance characteristics (60 Ohms versus 700 Ohms). Both parts maintain automotive-grade qualification and RoHS compliance. Selection of BZX84B5V1-7-F requires circuit-level analysis to confirm voltage tolerance compatibility and may provide performance advantages in applications with higher current transient requirements.

Both substitute parts are manufactured by established suppliers with active product status and full automotive qualification. Package compatibility is maintained across all three parts in the TO-236-3 / SOT-23-3 form factor.

Frequently Asked Questions (FAQ)

Q: Can PLVA650A-QR be used as a direct replacement for PLVA650A/ZLR?

A: Yes. PLVA650A-QR is a parametric equivalent with identical nominal voltage (5 V), tolerance (±4%), power rating (250 mW), and package configuration (TO-236AB). Both parts are manufactured by Nexperia USA Inc. and carry AEC-Q101 automotive qualification. The primary difference is product status: PLVA650A/ZLR is obsolete while PLVA650A-QR is active. No circuit modifications are required.

Q: What is the voltage difference between PLVA650A/ZLR and BZX84B5V1-7-F?

A: PLVA650A/ZLR operates at 5 V nominal while BZX84B5V1-7-F operates at 5.1 V nominal. This represents a 0.1 V (2%) deviation. The tolerance specifications differ: PLVA650A/ZLR has ±4% tolerance while BZX84B5V1-7-F has ±2% tolerance. Circuit-level validation is required to confirm that the 5.1 V nominal voltage is acceptable for the intended application.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the same package designation: TO-236-3, SC-59, or SOT-23-3. The physical footprint and pin configuration are identical, allowing direct PCB compatibility without layout modifications.

Q: What are the automotive qualification differences between the substitute parts?

A: Both PLVA650A-QR and BZX84B5V1-7-F carry AEC-Q101 qualification, matching the automotive-grade requirement of PLVA650A/ZLR. Both parts are suitable for automotive applications requiring this certification level.

Q: How do the reverse leakage characteristics compare?

A: PLVA650A/ZLR specifies 20 µA @ 4 V reverse leakage. PLVA650A-QR specifies 34 nA @ 2.5 V (significantly lower). BZX84B5V1-7-F specifies 2 µA @ 2 V. The measurement conditions differ across parts, making direct comparison difficult. Applications with strict leakage requirements should reference detailed datasheets for the specific measurement methodology.

Q: What is the impedance difference between PLVA650A/ZLR and BZX84B5V1-7-F?

A: PLVA650A/ZLR has maximum impedance of 700 Ohms while BZX84B5V1-7-F has maximum impedance of 60 Ohms. Lower impedance provides better voltage regulation and faster transient response. Applications requiring superior regulation characteristics may benefit from BZX84B5V1-7-F selection.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both PLVA650A-QR and BZX84B5V1-7-F are ROHS3 compliant, matching the compliance status of PLVA650A/ZLR.

Q: What is the packaging difference between PLVA650A/ZLR and PLVA650A-QR?

A: PLVA650A/ZLR packaging information is not specified in the provided data. PLVA650A-QR is supplied in Tape & Reel (TR) packaging. Both parts use the same TO-236AB supplier device package. Confirm packaging requirements with procurement specifications.