ZMM13 Zener Diode Equivalent & Substitute Parts

Part Overview

The ZMM13 is a 13 V, 500 mW Zener diode manufactured by Diotec Semiconductor in SOD-80C surface mount packaging. This component is classified as an active product with 5800 units currently in stock. The ZMM13 serves as a voltage regulation and protection element in electronic circuits requiring precise 13 V reference voltage with ±5% tolerance.

Substitute parts are identified when equivalent electrical parameters and mechanical compatibility are maintained across the same functional category. Alternative part numbers may be required due to inventory availability, packaging format preferences, or enhanced tolerance specifications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	13	V
Tolerance	±5%	%
Power - Maximum	500	mW
Impedance (Maximum)	26	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 10 V
Operating Temperature Range	-50 to 175	°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package	SOD-80C

Substitute Part Grouping Explanation

Substitution of the ZMM13 Zener diode is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Substitution Parameters:

Voltage - Zener (Nominal): 13 V
Power - Maximum: 500 mW
Impedance (Maximum): 26 Ohms
Current - Reverse Leakage @ Vr: 100 nA @ 10 V
Operating Temperature Range: -50°C to 175°C
Mounting Type: Surface Mount
Package / Case: DO-213AC, MINI-MELF, SOD-80
Supplier Device Package: SOD-80C

Tolerance Variation: The ZMM13 operates at ±5% tolerance. Substitute parts may feature tighter tolerance specifications (±2%) while maintaining all other electrical and mechanical parameters. Tighter tolerance variants are functionally compatible and provide enhanced voltage regulation precision.

Packaging Format: Substitute parts may be supplied in different packaging formats (Tape & Reel versus Strip) without affecting electrical performance or mechanical fit.

Parameter Comparison

Parameter	ZMM13	ZMC13	ZMM13B
Manufacturer	Diotec Semiconductor	Diotec Semiconductor	Diotec Semiconductor
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom)	13 V	13 V	13 V
Tolerance	±5%	±5%	±2%
Power - Max	500 mW	500 mW	500 mW
Impedance (Max)	26 Ohms	26 Ohms	26 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 10 V	100 nA @ 10 V	100 nA @ 10 V
Operating Temperature	-50°C ~ 175°C	-50°C ~ 175°C	-50°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package	SOD-80C	SOD-80C	SOD-80C
Product Status	Active	Active	Active
Inventory (Pcs)	5800	8416	11060
RoHS Status	Not applicable	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ZMC13 Selection Criteria: The ZMC13 maintains identical electrical specifications to the ZMM13, including 13 V nominal voltage, ±5% tolerance, 500 mW power rating, and 26 Ohms maximum impedance. Both components operate across the same temperature range and utilize SOD-80C surface mount packaging. The ZMC13 is ROHS3 compliant and carries higher inventory availability (8416 units). Selection of ZMC13 is appropriate when packaging format (Strip versus Tape & Reel) does not impose design constraints.

ZMM13B Selection Criteria: The ZMM13B provides enhanced voltage regulation precision with ±2% tolerance compared to the ZMM13's ±5% specification. All other electrical parameters remain equivalent: 13 V nominal voltage, 500 mW power rating, 26 Ohms maximum impedance, and identical operating temperature range. The ZMM13B is ROHS3 compliant and maintains the highest inventory level (11060 units). Selection of ZMM13B is appropriate for applications requiring tighter voltage reference accuracy while maintaining full mechanical and thermal compatibility.

All substitute parts are active products with confirmed availability and comply with applicable regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can ZMC13 directly replace ZMM13 in existing circuit designs?

A: Yes. The ZMC13 maintains identical electrical parameters: 13 V nominal voltage, ±5% tolerance, 500 mW power rating, 26 Ohms impedance, and SOD-80C surface mount packaging. The primary difference is packaging format (Strip versus Tape & Reel), which does not affect electrical performance or mechanical fit on the PCB.

Q: What is the primary advantage of ZMM13B over ZMM13?

A: The ZMM13B provides ±2% voltage tolerance compared to ZMM13's ±5% tolerance. This tighter tolerance specification delivers enhanced voltage regulation precision. All other electrical and mechanical parameters remain identical, ensuring direct compatibility in circuit designs.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. ZMM13, ZMC13, and ZMM13B all utilize SOD-80C surface mount packaging with DO-213AC, MINI-MELF, SOD-80 case dimensions. PCB footprints designed for any of these part numbers are mechanically compatible with all others.

Q: Do substitute parts operate across the same temperature range?

A: Yes. All three parts operate from -50°C to 175°C junction temperature, ensuring thermal compatibility in applications with identical environmental requirements.

Q: What is the significance of ROHS3 compliance on substitute parts?

A: ZMC13 and ZMM13B are ROHS3 compliant, indicating conformance to Restriction of Hazardous Substances regulations. The original ZMM13 lists RoHS status as not applicable. Selection of ROHS3 compliant substitutes is required for applications subject to regulatory compliance mandates.

Q: Can ZMM13B be used in applications originally designed for ZMM13?

A: Yes. The ZMM13B is a direct functional substitute with superior voltage tolerance (±2% versus ±5%). All electrical parameters, thermal characteristics, and mechanical specifications are equivalent or superior, ensuring full compatibility in existing designs.

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