MAZ222000G Equivalent & Substitute Parts

Part Overview

The MAZ222000G is a Zener diode rated at 22 V, 1 W with ±6% tolerance, manufactured by Panasonic Electronic Components in the DO-41 axial through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing circuit design and maintenance applications. The device functions as a voltage regulation and transient protection component in electronic circuits requiring 22 V Zener reference characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	22	V
Tolerance	±6%	-
Power - Max	1	W
Impedance (Max)	20	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 15 V
Voltage - Forward (Vf) (Max) @ If	1	V @ 200 mA
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Product Status	Obsolete	-

Substitute Part Grouping Explanation

Substitution of the MAZ222000G is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 22 V nominal
Package type: DO-41 axial through-hole configuration
Mounting method: Through-hole assembly

Secondary Compatibility Factors:

Power rating: 1 W (primary group) or higher power ratings (secondary group for higher dissipation applications)
Tolerance: ±5% or ±6%
Impedance characteristics
Reverse leakage current specifications
Forward voltage characteristics

Substitute parts are grouped into two categories: direct 1 W replacements with identical electrical performance, and higher-power alternatives (5 W) for applications requiring increased thermal dissipation capability. All substitute parts maintain the 22 V Zener voltage specification and DO-41 package compatibility.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Vr Leakage	Vf (Max)	Package	Product Status
MAZ222000G	Panasonic	22 V	±6%	1 W	20 Ω	5 µA @ 15 V	1 V @ 200 mA	DO-41	Obsolete
1EZ22D5-TP	Micro Commercial Co	22 V	±5%	500 mW	23 Ω	5 µA @ 16.7 V	1.2 V @ 200 mA	DO-41	Active
1N4748A,113	Nexperia USA Inc.	22 V	±5%	1 W	23 Ω	5 µA @ 16.7 V	1.2 V @ 200 mA	DO-41	Active
1N4748A-T50A	onsemi	22 V	±5%	1 W	23 Ω	5 µA @ 16.7 V	Not specified	DO-41	Active
1N4748AP/TR8	Microchip Technology	22 V	±5%	1 W	23 Ω	5 µA @ 16.7 V	1.2 V @ 200 mA	DO-41	Active
1N4748ATR	onsemi	22 V	±5%	1 W	23 Ω	5 µA @ 16.7 V	Not specified	DO-41	Active
1N5358B	Microsemi Corporation	22 V	±5%	5 W	3.5 Ω	500 nA @ 15.8 V	1.2 V @ 1 A	T-18	Active

Engineering Selection Recommendations

Direct Equivalents (1 W, DO-41 Package):

The following parts provide direct functional replacement for the MAZ222000G with active product status and improved compliance certifications:

1N4748A,113 (Nexperia USA Inc.): Active product with ROHS3 compliance and extended operating temperature range (-65°C to 200°C). Identical 1 W power rating and DO-41 package. Tape & Reel packaging available.
1N4748A-T50A (onsemi): Active product with ROHS3 compliance and extended operating temperature range (-65°C to 200°C). Identical 1 W power rating and DO-41 package. Tape & Box packaging.
1N4748ATR (onsemi): Active product with ROHS3 compliance and extended operating temperature range (-65°C to 200°C). Identical 1 W power rating and DO-41 package. Cut Tape packaging with highest inventory availability (21,963 units).
1N4748AP/TR8 (Microchip Technology): Active product with identical 1 W power rating and DO-41 package. Operating temperature range -65°C to 150°C. Tape & Reel packaging.

Lower Power Alternative (500 mW, DO-41 Package):

1EZ22D5-TP (Micro Commercial Co): Active product with 500 mW power rating. Suitable for applications with reduced thermal dissipation requirements. Operating temperature range -55°C to 150°C. DO-41 package compatibility maintained.

Higher Power Alternative (5 W, T-18 Package):

1N5358B (Microsemi Corporation): Active product with 5 W power rating in T-18 package. Suitable for applications requiring increased power dissipation. Not a direct package replacement but provides equivalent Zener voltage with enhanced thermal capability.

Frequently Asked Questions (FAQ)

Q: Can the 1EZ22D5-TP (500 mW) be used as a direct replacement for the MAZ222000G (1 W)?

A: The 1EZ22D5-TP operates at half the power rating (500 mW vs. 1 W). It is suitable only for circuits where the actual power dissipation does not exceed 500 mW. Circuit analysis is required to confirm thermal compatibility.

Q: What is the difference between the 1N4748A variants (1N4748A,113, 1N4748A-T50A, 1N4748ATR)?

A: All three variants share identical electrical specifications (22 V, 1 W, ±5% tolerance, DO-41 package). The differences are in packaging format (Tape & Reel, Tape & Box, Cut Tape) and inventory availability. Selection depends on assembly process requirements and supply chain needs.

Q: Is the 1N5358B (5 W, T-18 package) compatible with the MAZ222000G circuit?

A: The 1N5358B maintains the 22 V Zener voltage specification but uses a different package (T-18 vs. DO-41). Physical board layout modifications are required for installation. The higher power rating and lower impedance (3.5 Ω vs. 20 Ω) alter circuit performance characteristics. Use only if circuit design accommodates the T-18 package and revised electrical parameters.

Q: Why do substitute parts show ±5% tolerance instead of ±6%?

A: The substitute parts listed are manufactured to ±5% tolerance, which is tighter than the original MAZ222000G specification of ±6%. This represents improved manufacturing precision and is acceptable for direct substitution in circuits designed for the original ±6% tolerance.

Q: Which substitute part has the best availability?

A: The 1N4748ATR (onsemi) has the highest inventory availability at 21,963 units in stock. This part is active, ROHS3 compliant, and provides direct electrical and package equivalence to the MAZ222000G.

Q: Are all substitute parts RoHS compliant?

A: Most substitute parts are ROHS3 compliant (1N4748A,113, 1N4748A-T50A, 1N4748ATR). The 1N4748AP/TR8 (Microchip) and 1N5358B (Microsemi) are listed as RoHS non-compliant. Compliance requirements depend on end-application regulations and customer specifications.

Q: Can I use the 1N4748AP/TR8 in a design requiring extended temperature operation?

A: The 1N4748AP/TR8 operates from -65°C to 150°C, which is narrower than some alternatives (1N4748A,113 and 1N4748A-T50A operate to 200°C). Verify that the -65°C to 150°C range meets application requirements before selection.

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