MAZ80910ML Equivalent & Substitute Parts

Part Overview

The MAZ80910ML is a Zener diode manufactured by Panasonic Electronic Components, rated at 9.1 V nominal voltage with 150 mW maximum power dissipation in a SMini2-F1 surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Zener diodes in this voltage and power class are used for voltage regulation, overvoltage protection, and reference voltage applications in electronic circuits. The 9.1 V rating with ±6% tolerance and SMini2-F1 package define the functional and physical requirements for substitution.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	9.1	V
Tolerance	±6%	-
Power - Max	150	mW
Impedance (Max)	20	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 6 V	-
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA	-
Mounting Type	Surface Mount	-
Package / Case	SC-90, SOD-323F	-
Moisture Sensitivity Level	1 (Unlimited)	-
Product Status	Obsolete	-

Substitute Part Grouping Explanation

Substitution of the MAZ80910ML is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 9.1 V nominal
Mounting type: Surface Mount
Package compatibility: SC-90 or SOD-323F footprint
Power rating: Equal to or greater than 150 mW

Secondary Compatibility Factors:

Voltage tolerance: ±6% or tighter
Reverse leakage current characteristics
Forward voltage characteristics
Operating temperature range
Moisture sensitivity level

Substitute parts are grouped based on package type and power rating. Parts with identical 9.1 V zener voltage and surface mount configuration are considered direct substitutes when package footprints are compatible. Parts with higher power ratings (300 mW, 310 mW, 500 mW, 200 mW) remain functionally equivalent for applications where the original 150 mW rating is not a limiting constraint.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Package	Status	Compliance
MAZ80910ML	Panasonic	9.1 V	±6%	150 mW	20 Ω	SOD-323F	Obsolete	MSL 1
BZX585-B9V1,115	Nexperia USA Inc.	9.1 V	±2%	300 mW	10 Ω	SOD-523	Active	AEC-Q100, ROHS3
BZX585-B9V1,135	Nexperia USA Inc.	9.1 V	±2%	300 mW	10 Ω	SOD-523	Active	AEC-Q100, ROHS3
PZU9.1B2,115	Nexperia USA Inc.	9.1 V	±2%	310 mW	10 Ω	SOD-323F	Active	AEC-Q100, ROHS3
TDZTR9.1	Rohm Semiconductor	9.1 V	±10%	500 mW	-	TUMD2	Active	ROHS3
UDZSTE-179.1B	Rohm Semiconductor	9.1 V	±2%	200 mW	30 Ω	SOD-323F	Active	ROHS3
UDZVTE-179.1B	Rohm Semiconductor	9.1 V	-	200 mW	30 Ω	SOD-323F	Active	ROHS3

Engineering Selection Recommendations

Package-Compatible Direct Substitutes (SOD-323F):

PZU9.1B2,115 and UDZSTE-179.1B are package-compatible with the MAZ80910ML, both utilizing the SOD-323F footprint. PZU9.1B2,115 offers 310 mW power rating with ±2% tolerance and AEC-Q100 automotive qualification. UDZSTE-179.1B provides 200 mW power rating with ±2% tolerance. Both are active products with ROHS3 compliance.

Higher Power Rating Alternatives (SOD-523):

BZX585-B9V1,115 and BZX585-B9V1,135 are functionally equivalent Nexperia parts with 300 mW power rating and ±2% tolerance. These parts require PCB layout modification due to SOD-523 package footprint differences from the original SOD-323F. Both carry AEC-Q100 automotive qualification and ROHS3 compliance.

Highest Power Rating Option:

TDZTR9.1 from Rohm Semiconductor provides 500 mW power dissipation in a TUMD2 package. This part operates with ±10% tolerance and requires PCB footprint redesign. It is suitable for applications requiring maximum thermal headroom.

Selection Basis:

Active product status and ROHS3 compliance are standard across all substitute options. AEC-Q100 qualification is available in Nexperia parts (BZX585-B9V1 series and PZU9.1B2,115). Tolerance specifications range from ±2% (Nexperia and Rohm UDZSTE/UDZVTE series) to ±10% (Rohm TDZTR9.1). Power ratings exceed the original 150 mW specification across all substitutes, providing design margin for thermal management.

Frequently Asked Questions (FAQ)

Q: Can PZU9.1B2,115 directly replace MAZ80910ML without PCB modification?

A: Yes. PZU9.1B2,115 uses the identical SOD-323F package footprint as MAZ80910ML. Both components mount to the same PCB layout without modification. Electrical parameters are compatible: 9.1 V nominal voltage, ±2% tolerance (tighter than original ±6%), and 310 mW power rating (exceeds original 150 mW).

Q: What is the difference between BZX585-B9V1,115 and BZX585-B9V1,135?

A: Both parts are electrically identical with 9.1 V nominal voltage, ±2% tolerance, and 300 mW power rating. The difference is packaging format: BZX585-B9V1,115 is supplied in Tape & Reel (TR) format with 2373 pcs in stock, while BZX585-B9V1,135 is also Tape & Reel format with 742 pcs in stock. Both use SOD-523 package, requiring PCB footprint change from the original SOD-323F.

Q: Why do UDZSTE-179.1B and UDZVTE-179.1B have different specifications listed?

A: UDZSTE-179.1B specifies ±2% tolerance, while UDZVTE-179.1B does not list tolerance in the provided data. Both are Rohm Semiconductor parts with 9.1 V nominal voltage, 200 mW power rating, SOD-323F package, and identical reverse leakage characteristics (500 nA @ 6 V). UDZSTE-179.1B is supplied in Tape & Reel format (115994 pcs), while UDZVTE-179.1B is supplied in Cut Tape & Digi-Reel format (17458 pcs).

Q: Is TDZTR9.1 suitable for applications requiring tight voltage tolerance?

A: TDZTR9.1 operates with ±10% tolerance, which is wider than the original MAZ80910ML (±6%) and significantly wider than Nexperia and Rohm alternatives (±2%). This part is suitable for applications where voltage tolerance is not a critical constraint. Its primary advantage is the 500 mW power rating for high-dissipation applications.

Q: What compliance certifications are available across substitute options?

A: Nexperia parts (BZX585-B9V1 series and PZU9.1B2,115) carry AEC-Q100 automotive qualification and ROHS3 compliance. Rohm parts (TDZTR9.1, UDZSTE-179.1B, UDZVTE-179.1B) carry ROHS3 compliance. All substitute parts have Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.

Q: Can I use a higher power-rated substitute in a circuit designed for 150 mW?

A: Yes. Higher power-rated substitutes (200 mW, 300 mW, 310 mW, 500 mW) are functionally equivalent in circuits designed for 150 mW operation. The higher power rating provides additional thermal margin and does not degrade circuit performance. Package footprint compatibility must be verified for PCB layout.

Q: What is the operating temperature range for substitute parts?

A: Nexperia parts (BZX585-B9V1 series and PZU9.1B2,115) operate from -65°C to 150°C. Rohm parts (TDZTR9.1, UDZSTE-179.1B, UDZVTE-179.1B) operate from -55°C to 150°C. The original MAZ80910ML operating temperature range is not specified in the provided data.

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