Equivalent & Substitute Parts Reference: TZX10C-TAP

Part Overview

TZX10C-TAP is a Zener Diode manufactured by Vishay General Semiconductor - Diodes Division, with a nominal breakdown voltage of 10 V and maximum power dissipation of 500 mW. This model is categorized under Diodes, Zener, and features through-hole mounting in the DO-204AH (DO-35) axial package. The device is rated for automotive grade and carries AEC-Q101 qualification, making it suitable for automotive applications. The part is currently active and available in stock.

Identifying suitable substitute models is necessary to maintain design flexibility, secure supply continuity, and support inventory management, especially when particular compliance, package, or certification requirements are mandated.

Key Parameters

Parameter	TZX10C-TAP	Description
Manufacturer Part Number	TZX10C-TAP	Main model identifier
Category	Diodes, Zener	Component type
Voltage - Zener (Nom) (Vz)	10 V	Nominal breakdown voltage
Power - Max	500 mW	Maximum power dissipation
Impedance (Max) (Zzt)	25 Ohms	Maximum Zener impedance
Current - Reverse Leakage @ Vr	1 µA @ 7.5 V	Reverse leakage current
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	Maximum forward voltage
Operating Temperature	-65°C ~ 175°C	Temperature range
Mounting Type	Through Hole	Installation method
Package / Case	DO-204AH, DO-35, Axial	Physical package
RoHS Status	ROHS3 Compliant	Environmental compliance
Qualification	AEC-Q101	Automotive certification
Part Status	Active	Availability

Substitute Part Grouping Explanation

Substitute part selection is determined by matching the following key parameters: nominal Zener voltage (Vz), maximum power dissipation, impedance (Zzt), reverse leakage current, forward voltage, operating temperature range, mounting type, and package. In addition, compliance standards such as RoHS, automotive qualification (AEC-Q101), and part status are considered to ensure suitability in regulated and certified applications. Only parts that match both the electrical and mechanical parameters and are available in the same package and mounting configuration are listed as substitutes.

Parameter Comparison

Parameter	TZX10C-TAP Vishay General Semiconductor	1N5240B Microchip Technology	1N5240BTR Fairchild Semiconductor	BZX79C10-T50A onsemi
Voltage - Zener (Nom) (Vz)	10 V	10 V	10 V	10 V
Power - Max	500 mW	500 mW	500 mW	500 mW
Impedance (Max) (Zzt)	25 Ohms	17 Ohms	17 Ohms	20 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 7.5 V	3 µA @ 8 V	3 µA @ 8 V	200 nA @ 7 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	1.5 V @ 200 mA	1.2 V @ 200 mA	1.5 V @ 100 mA
Operating Temperature	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 200°C	-65°C ~ 200°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial
RoHS Status	ROHS3 Compliant	RoHS non-compliant	N/A	ROHS3 Compliant
Qualification	AEC-Q101	N/A	N/A	N/A
Part Status	Active	Active	Active	Active

Engineering Selection Recommendations

Selection should be based on part status, compliance, and qualification requirements. If automotive grade or AEC-Q101 certification is necessary, only TZX10C-TAP meets this criterion among the listed parts. For applications requiring RoHS compliance, TZX10C-TAP and BZX79C10-T50A meet ROHS3 requirements. Substitute parts share identical electrical ratings and package but differ in compliance and qualification certifications. Evaluation should focus on specific application requirements relating to environmental regulations and industry standards.

Frequently Asked Questions (FAQ)

Q: What are the key parameters to match for Zener diode substitution?
A: The critical parameters are nominal Zener voltage, maximum power rating, package/case, mounting type, impedance, reverse leakage current, forward voltage, operating temperature, RoHS status, and qualification.

Q: Can BZX79C10-T50A replace TZX10C-TAP in automotive applications?
A: BZX79C10-T50A lacks AEC-Q101 automotive qualification. TZX10C-TAP is the only substitute listed with this certification.

Q: Are the substitute parts physically compatible with TZX10C-TAP?
A: All substitutes feature the DO-204AH (DO-35) axial package with through-hole mounting, ensuring mechanical compatibility.

Q: How should RoHS status be considered when selecting a substitute?
A: For applications requiring RoHS compliance, TZX10C-TAP and BZX79C10-T50A are ROHS3 Compliant. 1N5240B is not RoHS compliant.

Q: Are voltage, power, and temperature ratings consistent among substitutes?
A: All listed substitutes share a 10 V Zener voltage, 500 mW power rating, and comparable operating temperature ranges. Differences exist in maximum impedance, reverse leakage, and forward voltage ratings.

Q: Is qualification relevant for non-automotive uses?
A: Qualification such as AEC-Q101 is only relevant if specified by project or industry standards. For general-use cases, matching electrical and mechanical parameters is sufficient.

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