MAZ802400L Equivalent & Substitute Parts

Part Overview

The MAZ802400L is a Panasonic Electronic Components Zener diode rated at 2.4 V nominal with 150 mW maximum power dissipation in SMini2-F1 surface mount packaging. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain the 2.4 V zener voltage specification while accommodating variations in power rating, tolerance, and package form factor within the surface mount diode category.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	2.4 V
Power - Max	150 mW
Tolerance	±7%
Impedance (Max) (Zzt)	100 Ohms
Current - Reverse Leakage @ Vr	120 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA
Mounting Type	Surface Mount
Package / Case	SC-90, SOD-323F
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAZ802400L is determined by the following critical parameters:

Primary Matching Criteria:

Voltage - Zener (Nom): 2.4 V (exact match required)
Mounting Type: Surface Mount (required)
Moisture Sensitivity Level: 1 (Unlimited) (required)

Secondary Compatibility Factors:

Power - Max: Substitute parts rated at 150 mW or higher are functionally compatible
Tolerance: ±7% or tighter tolerance acceptable
Impedance (Max): 100 Ohms or lower acceptable
Current - Reverse Leakage: 120 µA @ 1 V or lower acceptable
Package / Case: SOD-323F or SOD-523 compatible with surface mount assembly

All identified substitute parts maintain the 2.4 V zener voltage specification and surface mount configuration. Substitute parts from Nexperia USA Inc. and NXP Semiconductors provide active product status with automotive-grade qualifications (AEC-Q100 or AEC-Q101) and RoHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Power - Max	Tolerance	Zzt (Max)	Reverse Leakage @ 1V	Vf (Max) @ If	Package	Status
MAZ802400L	Panasonic	2.4 V	150 mW	±7%	100 Ohms	120 µA	1 V @ 10 mA	SOD-323F	Obsolete
BZT52H-C2V4,115	NXP Semiconductors	2.4 V	375 mW	±5%	85 Ohms	50 µA	900 mV @ 10 mA	SOD-123F	Active
BZX585-B2V4,115	Nexperia USA Inc.	2.4 V	300 mW	±2%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-523	Active
BZX585-B2V4,135	Nexperia USA Inc.	2.4 V	300 mW	±2%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-523	Active
BZX585-C2V4,115	Nexperia USA Inc.	2.4 V	300 mW	±5%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-523	Active
BZX585-C2V4,135	Nexperia USA Inc.	2.4 V	300 mW	±5%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-523	Active
BZX84J-B2V4,115	Nexperia USA Inc.	2.4 V	550 mW	±2%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-323F	Active
BZX84J-C2V4,115	Nexperia USA Inc.	2.4 V	550 mW	±5%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-323F	Active
PZU2.4B,115	Nexperia USA Inc.	2.4 V	310 mW	±5%	100 Ohms	50 µA	1.1 V @ 100 mA	SOD-323F	Active

Engineering Selection Recommendations

Direct Package Compatibility (SOD-323F):

BZX84J-B2V4,115 and BZX84J-C2V4,115 maintain the original SOD-323F package form factor. Both parts are active products with AEC-Q101 automotive qualification. BZX84J-B2V4,115 offers ±2% tolerance with 550 mW power rating. BZX84J-C2V4,115 provides ±5% tolerance matching the original ±7% specification with 550 mW power rating. PZU2.4B,115 also uses SOD-323F packaging with 310 mW power rating and AEC-Q100 automotive qualification.

Alternative Package Options (SOD-523):

BZX585-B2V4,115 and BZX585-B2V4,135 provide 300 mW power rating with ±2% tolerance in SOD-523 packaging. BZX585-C2V4,115 and BZX585-C2V4,135 offer 300 mW power rating with ±5% tolerance in SOD-523 packaging. All SOD-523 variants carry AEC-Q100 automotive qualification and RoHS3 compliance.

Higher Power Alternative (SOD-123F):

BZT52H-C2V4,115 from NXP Semiconductors delivers 375 mW power rating with ±5% tolerance in SOD-123F packaging. This part includes AEC-Q101 automotive qualification and represents the highest power option among available substitutes.

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity classification and ECCN EAR99 export control status consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original 150 mW specification?

A: Yes. All identified substitute parts are rated at 150 mW or higher (300 mW, 310 mW, 375 mW, or 550 mW). Higher power ratings provide additional thermal margin and do not compromise circuit functionality when the zener voltage and tolerance specifications are maintained.

Q: What is the difference between SOD-323F and SOD-523 packages?

A: SOD-323F and SOD-523 are both surface mount diode packages with different physical dimensions. SOD-323F is larger than SOD-523. Parts using SOD-323F (BZX84J series and PZU2.4B) are direct package replacements for the original MAZ802400L. SOD-523 parts (BZX585 series) require PCB layout modification but offer smaller footprint.

Q: What does the tolerance specification (±2%, ±5%, ±7%) mean for zener diode selection?

A: Tolerance indicates the allowable deviation from the nominal 2.4 V zener voltage. The original MAZ802400L specifies ±7% tolerance. Substitute parts with ±2% or ±5% tolerance provide tighter voltage regulation and are fully compatible with applications designed for ±7% tolerance.

Q: Are all substitute parts automotive-qualified?

A: Yes. All identified substitute parts carry either AEC-Q100 or AEC-Q101 automotive qualification, indicating compliance with automotive reliability and quality standards. The original MAZ802400L does not specify automotive qualification.

Q: What is the significance of the part number suffix (,115 or ,135)?

A: The suffix indicates packaging configuration. Both ,115 and ,135 designations refer to Tape & Reel (TR) packaging for automated assembly. These suffixes do not affect electrical performance or functional compatibility.

Q: Can I substitute BZX585-B2V4,115 (SOD-523) for the original MAZ802400L (SOD-323F) without PCB changes?

A: No. SOD-523 and SOD-323F packages have different physical dimensions and land patterns. PCB layout modification is required. For direct PCB compatibility without layout changes, use BZX84J series or PZU2.4B,115 parts, which maintain SOD-323F packaging.

Q: What is the reverse leakage current specification and why does it matter?

A: Reverse leakage current (120 µA @ 1 V for the original part) represents the small current flowing through the diode in reverse bias condition. All substitute parts specify 50 µA @ 1 V, which is lower than the original specification. Lower reverse leakage improves circuit performance and is fully compatible with designs specified for 120 µA.

Q: Are all substitute parts RoHS3 compliant?

A: All Nexperia USA Inc. substitute parts explicitly state RoHS3 compliance. The original Panasonic MAZ802400L does not specify RoHS status. RoHS3 compliance ensures lead-free construction and environmental compliance for modern manufacturing.

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