2M13ZH Zener Diode Equivalent & Substitute Parts

Part Overview

The 2M13ZH is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, rated at 13 V nominal Zener voltage with 2 W maximum power dissipation. This component is packaged in DO-204AC (DO-15) axial through-hole configuration and is qualified to AEC-Q101 automotive standards. The device operates across a temperature range of -55°C to 175°C and maintains ±5% voltage tolerance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required, or when inventory availability necessitates alternative sourcing while maintaining circuit functionality.

Substiute Parts

2M13ZH

Taiwan Semiconductor CorporationIn Stock: 7612M13ZH Datasheet

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1N5350B-TP

Micro Commercial CoIn Stock: 53071N5350B-TP Datasheet

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1N5351B-TP

Micro Commercial CoIn Stock: 52311N5351B-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2M13ZH is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Zener voltage rating (13 V nominal)
• Voltage tolerance (±5%)
• Package type (DO-204AC / DO-15 axial through-hole)
• Mounting configuration (through-hole)
• Regulatory compliance (RoHS3, REACH Unaffected, EAR99)

Secondary Compatibility Factors:

• Power dissipation capability (minimum 2 W required for direct substitution)
• Operating temperature range (minimum -55°C to 150°C overlap required)
• Impedance characteristics (Zzt parameter)
• Reverse leakage current specifications

The substitute parts 1N5350B-TP and 1N5351B-TP are identified based on matching package geometry and through-hole mounting compatibility. However, electrical parameter variations exist that must be evaluated for specific circuit applications.

Parameter Comparison

Engineering Selection Recommendations

1N5350B-TP Substitution: The 1N5350B-TP maintains identical 13 V Zener voltage and ±5% tolerance specifications. This part provides increased power dissipation capability (5 W versus 2 W) and lower impedance (2.5 Ohms versus 5 Ohms). Both components are RoHS3 compliant and REACH unaffected. The 1N5350B-TP operates to 150°C maximum, which is 25°C lower than the 2M13ZH upper temperature limit. All three components share DO-15 axial through-hole packaging and are electrically compatible for circuits requiring 13 V regulation.

1N5351B-TP Substitution: The 1N5351B-TP differs in Zener voltage specification (14 V nominal versus 13 V). This 1 V differential represents a 7.7% deviation from the 2M13ZH rating and is outside the ±5% tolerance band of the original part. This substitute is suitable only for applications where 14 V Zener voltage is acceptable. The 1N5351B-TP shares identical power rating (5 W), impedance (2.5 Ohms), and compliance certifications with the 1N5350B-TP. Operating temperature range is -55°C to 150°C.

Compliance and Regulatory Status: All three components maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification. Automotive-grade qualification (AEC-Q101) is specified for the 2M13ZH; equivalent automotive qualification status for substitute parts is not provided in the input parameters.

Frequently Asked Questions (FAQ)

Q: Can the 1N5350B-TP directly replace the 2M13ZH in all applications?

A: The 1N5350B-TP is mechanically and electrically compatible for circuits designed around 13 V Zener regulation. Both parts share identical voltage rating (13 V) and tolerance (±5%). The 1N5350B-TP provides superior power handling (5 W versus 2 W) and lower impedance (2.5 Ohms versus 5 Ohms). The maximum operating temperature of the 1N5350B-TP is 150°C, compared to 175°C for the 2M13ZH. Applications operating above 150°C require the original 2M13ZH specification.

Q: Why is the 1N5351B-TP listed as a substitute if it has 14 V rating instead of 13 V?

A: The 1N5351B-TP is provided as a substitute option for applications where 14 V Zener voltage is functionally acceptable. The 1 V difference represents a 7.7% deviation and falls outside the ±5% tolerance specification of the 2M13ZH. This part is not a direct equivalent but is included as an alternative when circuit design permits 14 V regulation instead of 13 V.

Q: Are all three parts available in the same packaging format?

A: All three components use DO-15 axial through-hole packaging. The 2M13ZH is supplied in Tape & Reel (TR) format, while the 1N5350B-TP and 1N5351B-TP are supplied in Cut Tape (CT) format. The physical package dimensions and pin configuration are identical, enabling direct mechanical substitution on through-hole PCB layouts.

Q: What is the significance of the impedance (Zzt) parameter in substitution?

A: Impedance (Zzt) affects the dynamic response and voltage regulation characteristics of the Zener diode. The 2M13ZH specifies 5 Ohms maximum impedance, while both substitute parts specify 2.5 Ohms. Lower impedance provides better voltage regulation stability and faster transient response. Circuits designed with the 2M13ZH impedance specification will experience improved performance with the lower impedance substitutes.

Q: Does reverse leakage current affect substitution compatibility?

A: Reverse leakage current is specified at 500 nA for the 2M13ZH and 1 µA for both substitute parts. The substitute parts exhibit higher leakage current by a factor of 2. In applications sensitive to leakage current (such as high-impedance bias networks), this difference must be evaluated. For standard voltage regulation applications, this difference is not functionally significant.

Q: What is the impact of the 25°C temperature range difference between the 2M13ZH and substitute parts?

A: The 2M13ZH operates to 175°C maximum junction temperature, while the 1N5350B-TP and 1N5351B-TP operate to 150°C maximum. Applications operating in thermal environments exceeding 150°C require the original 2M13ZH specification. Both substitute parts maintain full performance across the overlapping temperature range of -55°C to 150°C.

Q: Are automotive qualification requirements met by the substitute parts?

A: The 2M13ZH carries AEC-Q101 automotive qualification. Automotive qualification status for the 1N5350B-TP and 1N5351B-TP is not specified in the provided parameters. Applications requiring AEC-Q101 compliance must confirm automotive qualification status with the manufacturer before substitution.