1M200Z Zener Diode Equivalent & Substitute Parts

Part Overview

The 1M200Z is an active-status zener diode manufactured by Taiwan Semiconductor Corporation, rated for 200 V nominal zener voltage with 1 W maximum power dissipation. This component is packaged in DO-204AL (DO-41) axial through-hole configuration and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific requirements within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	200	V
Tolerance	±5%	%
Power - Max	1	W
Impedance (Max)	1500	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 152 V
Operating Temperature Range	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	DO-204AL (DO-41)	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the 1M200Z are identified based on the following critical parameters that determine functional equivalence:

Electrical Equivalence Criteria:

Voltage - Zener (Nom): Must equal 200 V
Tolerance: Must be ±5% or tighter
Operating Temperature Range: Must encompass -55°C to 150°C
Package / Case: Must be DO-204AL (DO-41) axial through-hole

Mechanical Compatibility Criteria:

Mounting Type: Through Hole (axial lead configuration)
Physical form factor: DO-204AL (DO-41) package

Compliance Criteria:

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

The substitute part Z4KE200A-E3/54 meets all equivalence criteria. While the maximum power rating differs (1.5 W versus 1 W), this represents an enhanced capability that does not compromise substitution validity. The reverse leakage current specification is superior in the substitute part, indicating improved device characteristics within the same voltage and tolerance class.

Parameter Comparison

Parameter	1M200Z (Main Part)	Z4KE200A-E3/54 (Substitute)	Match Status
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Different Manufacturer
Voltage - Zener (Nom)	200 V	200 V	Equivalent
Tolerance	±5%	±5%	Equivalent
Power - Max	1 W	1.5 W	Substitute Rated Higher
Impedance (Max)	1500 Ohms	1500 Ohms	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 152 V	500 nA @ 152 V	Substitute Superior
Operating Temperature Range	-55°C to 150°C	-55°C to 150°C	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	DO-204AL (DO-41)	DO-204AL (DO-41)	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

The Z4KE200A-E3/54 is a valid substitute for the 1M200Z based on the following engineering criteria:

Electrical Compatibility: Both components share identical nominal zener voltage (200 V), tolerance (±5%), impedance specification (1500 Ohms maximum), and operating temperature range (-55°C to 150°C). These parameters ensure functional equivalence in circuit applications.

Mechanical Compatibility: Both components utilize the DO-204AL (DO-41) axial through-hole package, ensuring direct physical and electrical compatibility in PCB layouts and through-hole mounting applications.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent component selection.

Performance Enhancement: The substitute part provides superior reverse leakage current characteristics (500 nA versus 5 µA at 152 V) and higher maximum power dissipation (1.5 W versus 1 W), representing enhanced device performance within the same voltage and tolerance specification class.

Product Status: Both components maintain active product status, ensuring continued availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the Z4KE200A-E3/54 be used as a direct replacement for the 1M200Z in existing designs?

A: Yes. Both components share identical nominal zener voltage (200 V), tolerance (±5%), impedance (1500 Ohms maximum), operating temperature range (-55°C to 150°C), and DO-204AL (DO-41) through-hole package configuration. The substitute part's higher power rating (1.5 W) and superior reverse leakage characteristics do not compromise substitution validity.

Q: What are the key electrical parameters that determine substitution validity?

A: Substitution validity is determined by: (1) Voltage - Zener (Nom) = 200 V, (2) Tolerance = ±5%, (3) Operating Temperature Range encompassing -55°C to 150°C, and (4) Impedance (Max) = 1500 Ohms. All substitute parts must meet these specifications.

Q: Are there packaging differences between the main part and substitute?

A: No. Both the 1M200Z and Z4KE200A-E3/54 utilize identical DO-204AL (DO-41) axial through-hole packaging. Physical dimensions, lead configuration, and mounting characteristics are equivalent.

Q: Does the higher power rating of the substitute part affect circuit operation?

A: No. The Z4KE200A-E3/54's 1.5 W maximum power rating represents an enhanced capability compared to the 1M200Z's 1 W rating. This does not alter circuit behavior when the substitute is operated within the original design's power dissipation limits.

Q: Are both components RoHS and REACH compliant?

A: Yes. Both the 1M200Z and Z4KE200A-E3/54 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference in reverse leakage current between these components?

A: The 1M200Z specifies 5 µA reverse leakage at 152 V, while the Z4KE200A-E3/54 specifies 500 nA at the same voltage. The substitute part exhibits superior leakage characteristics, indicating improved device performance within the same voltage class.

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