PZU8.2BA,115 Equivalent & Substitute Parts

Part Overview

The PZU8.2BA,115 is a Zener diode manufactured by Nexperia USA Inc., rated at 8.2 V nominal with 320 mW maximum power dissipation. This surface mount component in SOD-323 package is designed for voltage regulation and protection applications in electronic circuits. The part is Active status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as tolerance specifications, power ratings, and package options.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	8.2	V
Tolerance	±5%	—
Power - Max	320	mW
Impedance (Max)	10	Ohms
Current - Reverse Leakage @ Vr	500	nA @ 5 V
Voltage - Forward (Vf) (Max) @ If	1.1	V @ 100 mA
Operating Temperature	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SC-76, SOD-323	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the PZU8.2BA,115 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or superior electrical specifications:

Zener voltage: 8.2 V (nominal)
Package: SOD-323 (SC-76)
Mounting: Surface Mount
Operating temperature range: -55°C to 150°C
Power rating: 320 mW
RoHS3 compliance

Parametric equivalents include PZU8.2B1A,115, PZU8.2B2A,115, and PZU8.2B3A,115, which differ primarily in tolerance specification (±2% versus ±5%) and packaging format (Bulk versus Tape & Reel).

Similar Parts share the same zener voltage and package type but with reduced power ratings (200 mW) and modified electrical characteristics:

Zener voltage: 8.2 V (nominal)
Package: SOD-323 (SC-76)
Power rating: 200 mW (reduced from 320 mW)
Impedance: 15 Ohms (increased from 10 Ohms)
Tolerance: ±5% or ±6%

Similar parts include BZT52 and BZX384 series devices from multiple manufacturers. These are suitable for applications with lower power dissipation requirements.

Automotive-Grade Equivalent (PZU8.2BA-QX) is qualified to AEC-Q101 standard with identical electrical specifications to the main part.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Package	Temp Range (°C)	Classification
PZU8.2BA,115	Nexperia USA Inc.	8.2	±5%	320	10	SOD-323	-55 to 150	Main Part
PZU8.2BA-QX	Nexperia USA Inc.	8.2	±5%	320	10	SOD-323	-55 to 150	Automotive Equivalent
PZU8.2B1A,115	NXP USA Inc.	8.2	±2%	320	10	SOD-323	-55 to 150	Parametric Equivalent
PZU8.2B2A,115	Nexperia USA Inc.	8.2	±2%	320	10	SOD-323	-55 to 150	Parametric Equivalent
PZU8.2B3A,115	Nexperia USA Inc.	8.2	±2%	320	10	SOD-323	-55 to 150	Parametric Equivalent
BZT52C8V2-TP	Micro Commercial Co	8.2	±6%	200	15	SOD-123	-65 to 150	Similar Part
BZT52C8V2S-7-F	Diodes Incorporated	8.2	±6%	200	15	SOD-323	-65 to 150	Similar Part
BZT52C8V2S-TP	Micro Commercial Co	8.2	±6%	200	15	SOD-323	-65 to 150	Similar Part
BZX384C8V2-E3-08	Vishay General Semiconductor	8.2	±5%	200	15	SOD-323	-55 to 150	Similar Part
BZX384C8V2-E3-18	Vishay General Semiconductor	8.2	±5%	200	15	SOD-323	-55 to 150	Similar Part
BZX384C8V2-HE3-08	Vishay General Semiconductor	8.2	±5%	200	15	SOD-323	-55 to 150	Automotive Similar

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

Select PZU8.2B1A,115, PZU8.2B2A,115, or PZU8.2B3A,115 when the application requires 320 mW power dissipation and SOD-323 package. These parametric equivalents maintain the same zener voltage, power rating, and impedance as the main part. The tighter tolerance specification (±2%) of these alternatives provides improved voltage regulation accuracy compared to the ±5% tolerance of PZU8.2BA,115.

For Automotive Applications:

PZU8.2BA-QX is qualified to AEC-Q101 automotive standard and maintains identical electrical specifications to PZU8.2BA,115. This part is suitable for automotive and high-reliability applications requiring formal qualification documentation.

BZX384C8V2-HE3-08 from Vishay is also AEC-Q101 qualified and provides an alternative automotive-grade option with 200 mW power rating and ±5% tolerance in SOD-323 package.

For Reduced Power Dissipation Applications:

BZT52C8V2S-7-F, BZT52C8V2S-TP, BZX384C8V2-E3-08, and BZX384C8V2-E3-18 are suitable when circuit design permits 200 mW maximum power dissipation. These similar parts maintain 8.2 V zener voltage and SOD-323 package compatibility. The increased impedance (15 Ohms) and wider tolerance specifications (±5% to ±6%) must be evaluated against circuit requirements.

For Extended Temperature Range:

BZT52C8V2-TP and BZT52C8V2S-TP extend the lower operating temperature to -65°C, compared to -55°C for the main part and most equivalents.

All recommended parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can PZU8.2B1A,115 be used as a direct replacement for PZU8.2BA,115?

A: Yes. PZU8.2B1A,115 is a parametric equivalent with identical zener voltage (8.2 V), power rating (320 mW), impedance (10 Ohms), and operating temperature range (-55°C to 150°C). The primary difference is tighter tolerance (±2% versus ±5%), which improves voltage regulation accuracy. Both use SOD-323 package and are ROHS3 compliant.

Q: What is the difference between parametric equivalents and similar parts?

A: Parametric equivalents (PZU8.2B1A,115, PZU8.2B2A,115, PZU8.2B3A,115) maintain the same 320 mW power rating and 10 Ohms impedance as the main part. Similar parts (BZT52 and BZX384 series) have reduced power ratings (200 mW) and increased impedance (15 Ohms). Similar parts are suitable only for applications with lower power dissipation requirements.

Q: Can I use BZT52C8V2S-TP instead of PZU8.2BA,115 in my circuit?

A: BZT52C8V2S-TP shares the same 8.2 V zener voltage and SOD-323 package, but has 200 mW power rating versus 320 mW for the main part. Substitution is valid only if circuit analysis confirms that power dissipation does not exceed 200 mW. The increased impedance (15 Ohms) and wider tolerance (±6%) must also be acceptable for the application.

Q: Is PZU8.2BA-QX suitable for automotive applications?

A: Yes. PZU8.2BA-QX is qualified to AEC-Q101 automotive standard and maintains identical electrical specifications to PZU8.2BA,115. It is the recommended choice for automotive and high-reliability applications requiring formal qualification documentation.

Q: What is the significance of the tolerance specification (±5% versus ±2%)?

A: Tolerance specifies the allowable deviation of the zener voltage from the nominal 8.2 V value. ±5% tolerance allows deviation from 7.79 V to 8.61 V, while ±2% tolerance restricts deviation to 8.04 V to 8.36 V. Tighter tolerance (±2%) provides more precise voltage regulation and is preferred for applications requiring strict voltage control.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), consistent with the main part PZU8.2BA,115.

Q: What is the difference between SOD-323 and SOD-123 packages?

A: Both are surface mount packages for small signal diodes. SOD-323 (SC-76) is the standard package for PZU8.2BA,115 and most equivalents. BZT52C8V2-TP uses SOD-123 package, which has different physical dimensions. Package selection depends on PCB layout constraints and available footprint space.

Q: Can I substitute BZX384C8V2-HE3-08 for PZU8.2BA,115?

A: BZX384C8V2-HE3-08 is suitable for applications where 200 mW power dissipation is acceptable. It maintains 8.2 V zener voltage, SOD-323 package, and AEC-Q101 automotive qualification. The reduced power rating and increased impedance must be verified against circuit requirements before substitution.

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