TZMC10-M-18 Equivalent & Substitute Parts

Part Overview

The TZMC10-M-18 is a Zener diode rated at 10 V nominal voltage with 500 mW maximum power dissipation, manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component is packaged in SOD-80 MiniMELF configuration and is qualified to AEC-Q101 automotive standards. The part is currently active in production with 858 pieces in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, packaging format preferences, or design revision requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	10	V
Power - Maximum	500	mW
Tolerance	±5%	—
Impedance (Maximum)	15	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 7.5 V	—
Voltage - Forward (Maximum) @ If	1.5 V @ 200 mA	—
Operating Temperature Range	-65 to 175	°C
Package / Case	DO-213AC, MINI-MELF, SOD-80	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TZMC10-M-18 is determined by the following critical parameters:

Electrical Equivalence Criteria:

Zener voltage: 10 V nominal
Maximum power dissipation: 500 mW
Operating temperature range: -65°C to 175°C minimum
Package type: SOD-80 MiniMELF (DO-213AC) for mechanical compatibility

Tolerance Considerations: The TZMC10-M-18 specifies ±5% tolerance. Substitute parts with tighter tolerance (±2%) remain functionally equivalent and provide improved voltage regulation accuracy. Substitute parts with ±5% tolerance maintain identical tolerance specifications.

Packaging Format Variations: Substitute parts are grouped by packaging format (Tape & Reel, Cut Tape, Bulk) while maintaining identical electrical performance and SOD-80 MiniMELF package configuration.

Compliance and Certification: All substitute parts maintain AEC-Q101 automotive qualification and ROHS3 compliance, ensuring suitability for automotive applications.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Ir @ Vr	Vf (Max) @ If	Temp Range	Package	Packaging Format	AEC-Q101	RoHS
TZMC10-M-18	Vishay	10 V	±5%	500 mW	15 Ω	100 nA @ 7.5 V	1.5 V @ 200 mA	-65 to 175°C	SOD-80	Tape & Reel	Yes	ROHS3
TZMB10-GS08	Vishay	10 V	±2%	500 mW	15 Ω	100 nA @ 7.5 V	1.5 V @ 200 mA	-65 to 175°C	SOD-80	Cut Tape & Digi-Reel	Yes	ROHS3
TZMB10-GS18	Vishay	10 V	±2%	500 mW	15 Ω	100 nA @ 7.5 V	1.5 V @ 200 mA	-65 to 175°C	SOD-80	Tape & Reel	Yes	ROHS3
TZMC10GS18	Vishay	10 V	±5%	500 mW	15 Ω	100 nA @ 7.5 V	1.5 V @ 200 mA	-65 to 175°C	SOD-80	Cut Tape	Yes	ROHS3
1N4104UR-1	Microchip Technology	10 V	±5%	500 mW	200 Ω	500 nA @ 7.6 V	1.1 V @ 200 mA	-65 to 175°C	DO-213AA	Bulk	No	Non-compliant
CLL5240B TR PBFREE	Central Semiconductor Corp	10 V	±5%	500 mW	17 Ω	3 µA @ 8 V	1.25 V @ 200 mA	-65 to 200°C	SOD-80	Tape & Reel	No	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Vishay TZM Series):

TZMB10-GS08, TZMB10-GS18, and TZMC10GS18 are direct parametric equivalents manufactured by Vishay. These parts maintain identical electrical specifications with the exception of tolerance and packaging format. TZMB10-GS08 and TZMB10-GS18 offer improved ±2% tolerance compared to the ±5% specification of TZMC10-M-18, providing enhanced voltage regulation accuracy. All three parts retain AEC-Q101 qualification and ROHS3 compliance. Selection between these parts is determined by packaging format requirements: Cut Tape & Digi-Reel (TZMB10-GS08), Tape & Reel (TZMB10-GS18 or TZMC10GS18).

Secondary Substitutes (Alternative Manufacturers):

1N4104UR-1 (Microchip Technology) and CLL5240B TR PBFREE (Central Semiconductor Corp) provide electrical equivalence at 10 V, 500 mW with ±5% tolerance. However, these parts present compliance considerations: 1N4104UR-1 is not AEC-Q101 qualified and is RoHS non-compliant; CLL5240B TR PBFREE lacks AEC-Q101 qualification. These parts are suitable for non-automotive applications or where automotive qualification is not required. The 1N4104UR-1 uses DO-213AA package (not SOD-80 MiniMELF), requiring PCB layout verification. CLL5240B TR PBFREE maintains SOD-80 package compatibility but exhibits higher reverse leakage current (3 µA @ 8 V versus 100 nA @ 7.5 V).

Frequently Asked Questions (FAQ)

Q: Can TZMB10-GS08 or TZMB10-GS18 be used as direct replacements for TZMC10-M-18?

A: Yes. Both TZMB10-GS08 and TZMB10-GS18 are direct electrical and mechanical substitutes. They maintain identical 10 V zener voltage, 500 mW power rating, SOD-80 MiniMELF package, and operating temperature range. The ±2% tolerance of the TZMB series provides tighter voltage regulation compared to the ±5% tolerance of TZMC10-M-18. Both parts are AEC-Q101 qualified and ROHS3 compliant.

Q: What is the difference between TZMB10-GS08 and TZMB10-GS18?

A: Both parts are electrically identical. The difference is packaging format: TZMB10-GS08 is supplied in Cut Tape & Digi-Reel format, while TZMB10-GS18 is supplied in Tape & Reel format. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Is TZMC10GS18 equivalent to TZMC10-M-18?

A: Yes. TZMC10GS18 is electrically equivalent with identical ±5% tolerance, 10 V zener voltage, and 500 mW power rating. The difference is packaging format: TZMC10GS18 is supplied in Cut Tape format, while TZMC10-M-18 is supplied in Tape & Reel format. Both maintain AEC-Q101 qualification and ROHS3 compliance.

Q: Can 1N4104UR-1 be used in automotive applications?

A: 1N4104UR-1 is not AEC-Q101 qualified and is RoHS non-compliant. It is not suitable for automotive applications requiring these certifications. Additionally, the DO-213AA package differs from the SOD-80 MiniMELF package of TZMC10-M-18, requiring PCB layout verification.

Q: What are the key differences between CLL5240B TR PBFREE and TZMC10-M-18?

A: CLL5240B TR PBFREE maintains SOD-80 package compatibility and ROHS3 compliance. However, it lacks AEC-Q101 automotive qualification. The reverse leakage current is significantly higher (3 µA @ 8 V versus 100 nA @ 7.5 V), which may affect circuit performance in applications requiring low leakage characteristics. Operating temperature range extends to 200°C (versus 175°C for TZMC10-M-18).

Q: Which substitute part should be selected for automotive applications?

A: For automotive applications, select TZMB10-GS08, TZMB10-GS18, or TZMC10GS18. All three parts maintain AEC-Q101 qualification and ROHS3 compliance required for automotive use. Selection is based on packaging format preference: Cut Tape & Digi-Reel (TZMB10-GS08), Tape & Reel (TZMB10-GS18 or TZMC10GS18).

Q: Are there inventory advantages to selecting substitute parts?

A: Yes. TZMB10-GS18 has 6946 pieces in stock, TZMC10GS18 has 7732 pieces in stock, and CLL5240B TR PBFREE has 11718 pieces in stock, compared to 858 pieces for TZMC10-M-18. Substitute parts with higher inventory availability may reduce lead times for procurement.

Q: What is the significance of impedance (Zzt) differences between substitute parts?

A: Impedance affects voltage regulation performance. TZMC10-M-18, TZMB10-GS08, and TZMB10-GS18 specify 15 Ω maximum impedance. TZMC10GS18 also specifies 15 Ω. CLL5240B TR PBFREE specifies 17 Ω, and 1N4104UR-1 specifies 200 Ω. Higher impedance results in greater voltage variation across the operating current range. For applications requiring tight voltage regulation, parts with lower impedance (15 Ω) are preferred.

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