MAZ21600AG Equivalent & Substitute Parts

Part Overview

The MAZ21600AG is a 16 V, 1 W Zener diode manufactured by Panasonic Electronic Components in the DO-41 axial through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates with a nominal Zener voltage of 16 V and a maximum power dissipation of 1 W, with a tolerance of ±6%. Substitute parts must maintain electrical compatibility across voltage regulation, power handling, and thermal characteristics while accommodating the through-hole DO-41 package format.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	16	V
Power - Max	1	W
Tolerance	±6%	-
Impedance (Max)	12	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 11 V
Voltage - Forward (Max) @ If	1	V @ 200 mA
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-

Substitute Part Grouping Explanation

Substitute parts for the MAZ21600AG are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Voltage - Zener (Nom): 16 V (exact match required)
Mounting Type: Through Hole (required for board compatibility)
Package / Case: DO-41 or DO-204AL (axial configuration)

Compatible Variation Parameters:

Tolerance: ±5% to ±6% (tighter tolerance acceptable)
Power - Max: 1 W or greater (equal or higher power rating acceptable)
Impedance (Max): 12 to 16 Ohms (within acceptable range)
Current - Reverse Leakage: 5 µA or lower (lower leakage acceptable)
Voltage - Forward (Max): 1 V to 1.2 V @ 200 mA (within acceptable range)

All substitute parts listed maintain the 16 V Zener voltage specification and through-hole DO-41 package configuration, ensuring direct functional replacement in existing circuit designs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom)	Tolerance	Power - Max	Impedance (Max)	Current - Reverse Leakage @ Vr	Voltage - Forward (Max) @ If	Operating Temperature	Product Status
MAZ21600AG	Panasonic Electronic Components	16 V	±6%	1 W	12 Ohms	5 µA @ 11 V	1 V @ 200 mA	-	Obsolete
1EZ16D5-TP	Micro Commercial Co	16 V	±5%	150 mW	16 Ohms	5 µA @ 12.2 V	1.2 V @ 200 mA	-55°C ~ 150°C	Active
1N4745A	Lumimax Optoelectronic Technology	16 V	±5%	1 W	16 Ohms	5 µA @ 12.2 V	1.2 V @ 200 mA	-65°C ~ 200°C	Active
1N4745A,113	Nexperia USA Inc.	16 V	±5%	1 W	16 Ohms	5 µA @ 12.2 V	1.2 V @ 200 mA	-65°C ~ 200°C	Active
1N4745A-T50A	onsemi	16 V	±5%	1 W	16 Ohms	5 µA @ 12.2 V	-	-65°C ~ 200°C	Active
1N4745AP/TR8	Microchip Technology	16 V	±5%	1 W	16 Ohms	5 µA @ 12.2 V	1.2 V @ 200 mA	-65°C ~ 150°C	Active
1N4745ATR	Fairchild Semiconductor	16 V	±5%	1 W	16 Ohms	5 µA @ 12.2 V	-	-65°C ~ 200°C	Active
BZX85C16	Taiwan Semiconductor Corporation	16 V	±5%	1.3 W	15 Ohms	500 nA @ 12 V	1.2 V @ 10 mA	-65°C ~ 200°C	Active

Engineering Selection Recommendations

Primary Substitutes (Full Electrical and Mechanical Equivalence):

The following parts provide direct substitution for the MAZ21600AG with active product status and equivalent 1 W power ratings:

1N4745A (Lumimax Optoelectronic Technology): Active status, 1 W power rating, ±5% tolerance, extended operating temperature range (-65°C ~ 200°C), RoHS compliant
1N4745A,113 (Nexperia USA Inc.): Active status, 1 W power rating, ±5% tolerance, extended operating temperature range (-65°C ~ 200°C), ROHS3 compliant
1N4745A-T50A (onsemi): Active status, 1 W power rating, ±5% tolerance, extended operating temperature range (-65°C ~ 200°C), ROHS3 compliant
1N4745ATR (Fairchild Semiconductor): Active status, 1 W power rating, ±5% tolerance, extended operating temperature range (-65°C ~ 200°C)

Secondary Substitutes (Reduced Power Rating):

1EZ16D5-TP (Micro Commercial Co): Active status, reduced power rating of 150 mW (suitable for applications with lower power dissipation requirements), ±5% tolerance, operating temperature range -55°C ~ 150°C

Enhanced Performance Substitute (Increased Power Rating):

BZX85C16 (Taiwan Semiconductor Corporation): Active status, increased power rating of 1.3 W (provides additional thermal margin), ±5% tolerance, extended operating temperature range (-65°C ~ 200°C), ROHS3 compliant, lower reverse leakage current (500 nA @ 12 V)

All substitute parts maintain the 16 V Zener voltage specification and DO-41 through-hole package configuration required for direct circuit board replacement.

Frequently Asked Questions (FAQ)

Q: Can the 1EZ16D5-TP substitute for the MAZ21600AG in all applications?

A: The 1EZ16D5-TP maintains the 16 V Zener voltage and DO-41 package but has a reduced power rating of 150 mW compared to the MAZ21600AG's 1 W rating. This part is suitable only for applications where power dissipation does not exceed 150 mW. For applications requiring the full 1 W power handling capability, use 1 W-rated alternatives.

Q: What is the difference between the 1N4745A variants from different manufacturers?

A: The 1N4745A part number is produced by multiple manufacturers (Lumimax, Nexperia, onsemi, Fairchild, and Microchip). All variants maintain the same 16 V Zener voltage and 1 W power rating. Differences exist in operating temperature ranges, compliance certifications (RoHS status), and packaging formats (Cut Tape, Tape & Reel, or Bulk). Selection should be based on application temperature requirements and procurement packaging preferences.

Q: Is the BZX85C16 a direct replacement for the MAZ21600AG?

A: The BZX85C16 is functionally compatible with the MAZ21600AG for the 16 V Zener voltage and DO-41 package. The BZX85C16 offers an increased power rating of 1.3 W and lower reverse leakage current (500 nA @ 12 V). This part is suitable as a direct replacement and provides enhanced thermal performance for applications with higher power dissipation margins.

Q: Are all substitute parts RoHS compliant?

A: RoHS compliance varies among substitute parts. The 1N4745A (Lumimax) is RoHS compliant. The 1N4745A,113 (Nexperia) and 1N4745A-T50A (onsemi) are ROHS3 compliant. The 1N4745AP/TR8 (Microchip) is RoHS non-compliant. The BZX85C16 (Taiwan Semiconductor) is ROHS3 compliant. Verify compliance requirements for your specific application before selection.

Q: What is the significance of the ±5% tolerance in substitute parts compared to the MAZ21600AG's ±6% tolerance?

A: The ±5% tolerance in substitute parts is tighter than the MAZ21600AG's ±6% tolerance. This means substitute parts maintain the 16 V Zener voltage within a narrower range, providing improved voltage regulation accuracy. This tighter tolerance is acceptable for direct substitution and may improve circuit performance in voltage regulation applications.

Q: Can I use the 1N4745AP/TR8 in place of the MAZ21600AG?

A: The 1N4745AP/TR8 is electrically compatible with the MAZ21600AG, maintaining the 16 V Zener voltage and 1 W power rating. However, the operating temperature range is -65°C ~ 150°C, which is narrower than some alternatives. Verify that your application's operating temperature requirements fall within this range before selection.

Q: What packaging formats are available for the substitute parts?

A: Substitute parts are available in multiple packaging formats: Bulk (1EZ16D5-TP, 1N4745ATR), Cut Tape (1N4745A,113, 1N4745A-T50A), and Tape & Reel (BZX85C16, 1N4745AP/TR8). All parts maintain the through-hole DO-41 axial package configuration for board compatibility. Select packaging based on procurement and assembly requirements.

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