2M13Z Zener Diode 13V 2W Equivalent & Substitute Parts

Part Overview

The 2M13Z is an active-status zener diode manufactured by Taiwan Semiconductor Corporation, rated for 13 V nominal zener voltage and 2 W maximum power dissipation. This through-hole component is packaged in DO-204AC (DO-15) axial configuration and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for circuit applications, particularly when higher power ratings or alternative sourcing is necessary.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	13 V
Tolerance	±5%
Power - Max	2 W
Impedance (Max)	5 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 9.9 V
Operating Temperature	-55°C ~ 175°C
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 2M13Z is determined by the following critical parameters: nominal zener voltage, voltage tolerance, maximum power rating, package type, and operating temperature range. Substitute parts must maintain the 13 V nominal zener voltage specification to ensure circuit voltage regulation performance. The DO-15 axial package compatibility is mandatory for mechanical fit in through-hole applications. Parts with higher power ratings (5 W) are acceptable substitutes when the circuit design permits increased thermal capacity. All substitute parts must maintain ROHS3 compliance and active product status.

The 1N5350B-TP maintains identical 13 V zener voltage and ±5% tolerance with enhanced 5 W power capability. The 1N5351B-TP operates at 14 V nominal zener voltage and is not a direct electrical substitute for 13 V applications due to voltage specification variance.

Parameter Comparison

Parameter	2M13Z	1N5350B-TP	1N5351B-TP
Manufacturer	Taiwan Semiconductor Corporation	Micro Commercial Co	Micro Commercial Co
Voltage - Zener (Nom)	13 V	13 V	14 V
Tolerance	±5%	±5%	±5%
Power - Max	2 W	5 W	5 W
Impedance (Max)	5 Ohms	2.5 Ohms	2.5 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 9.9 V	1 µA @ 9.9 V	1 µA @ 10.6 V
Operating Temperature	-55°C ~ 175°C	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

The 1N5350B-TP is a direct electrical substitute for the 2M13Z in 13 V zener applications. Both components maintain identical nominal zener voltage and tolerance specifications. The 1N5350B-TP provides superior power dissipation capability at 5 W versus 2 W, lower impedance at 2.5 Ohms versus 5 Ohms, and maintains ROHS3 compliance and active product status. The operating temperature range of the 1N5350B-TP extends to 150°C, which is 25°C lower than the 2M13Z maximum of 175°C; this difference is application-dependent.

The 1N5351B-TP operates at 14 V nominal zener voltage and is not suitable for direct substitution in circuits requiring 13 V regulation. The 1 V voltage differential exceeds typical circuit tolerance margins for voltage regulation applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5350B-TP replace the 2M13Z in all applications?

A: The 1N5350B-TP is electrically compatible for 13 V zener voltage applications. Both components share identical nominal zener voltage (13 V) and tolerance (±5%). The 1N5350B-TP provides higher power rating (5 W versus 2 W) and lower impedance (2.5 Ohms versus 5 Ohms). The operating temperature maximum of 150°C for the 1N5350B-TP is lower than the 2M13Z at 175°C; applications requiring operation above 150°C require the 2M13Z.

Q: Why is the 1N5351B-TP listed as a substitute if it has 14 V zener voltage?

A: The 1N5351B-TP is not a direct substitute for 13 V applications. The 14 V nominal zener voltage creates a 1 V differential that affects voltage regulation performance. This part is listed in the substitute database but is not recommended for direct replacement in circuits designed for 13 V operation.

Q: Are the packaging and mounting specifications identical between these parts?

A: All three components use DO-15 axial through-hole packaging and are compatible with identical PCB layouts and mounting procedures. The DO-204AC designation confirms mechanical compatibility across all parts.

Q: What compliance certifications apply to these substitute parts?

A: All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (unlimited) for all components, indicating no special moisture handling requirements.

Q: How do impedance differences affect circuit performance?

A: The 1N5350B-TP impedance of 2.5 Ohms is lower than the 2M13Z at 5 Ohms. Lower impedance provides improved voltage regulation stability and reduced output impedance in zener regulator circuits. This characteristic is advantageous in most applications.

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