TZX30X-TAP Equivalent & Substitute Parts

Part Overview

The TZX30X-TAP is a 30 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division in DO-35 axial through-hole packaging. This component is classified as Active product status and carries AEC-Q101 automotive qualification. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage applications across automotive and industrial electronics. Substitute parts may be required due to inventory constraints, supply chain discontinuities, or specific application requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

TZX30X-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 851TZX30X-TAP Datasheet

Current PartRFQ

NZX30X,133

Nexperia USA Inc.In Stock: 10680NZX30X,133 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TZX30X-TAP is permissible with the NZX30X,133 based on the following electrical and mechanical compatibility criteria:

Critical Matching Parameters:

• Zener voltage nominal specification within application tolerance
• Maximum power dissipation rating (500 mW)
• Maximum impedance specification (100 Ohms)
• Through-hole axial mounting configuration (DO-35 package)
• Forward voltage characteristics at specified current
• Operating temperature range coverage
• RoHS3 compliance and regulatory alignment

The NZX30X,133 meets all mandatory electrical parameters and maintains mechanical compatibility through identical DO-204AH (DO-35) packaging. Both components are Active status products with equivalent regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

TZX30X-TAP (Vishay General Semiconductor - Diodes Division)

Select this component when AEC-Q101 automotive qualification is a primary requirement and the application operates across the full temperature range of -65°C to 175°C. This part carries explicit automotive grade designation and is suitable for safety-critical automotive applications.

NZX30X,133 (Nexperia USA Inc.)

This substitute part provides equivalent electrical performance with identical power rating, impedance specification, and forward voltage characteristics. The nominal zener voltage of 29.76 V with ±2% tolerance remains within acceptable operating parameters for applications designed for 30 V regulation. The lower reverse leakage current (50 nA versus 1 µA) represents improved performance. The operating temperature range of -55°C to 175°C covers standard industrial and commercial applications. Both components maintain ROHS3 compliance and identical DO-35 axial through-hole packaging, enabling direct mechanical substitution on printed circuit boards.

Selection between these parts depends on application temperature requirements and automotive qualification necessity. Both are Active status products with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the NZX30X,133 directly replace the TZX30X-TAP in automotive applications?

A: The NZX30X,133 provides electrical equivalence and identical packaging. However, the TZX30X-TAP carries explicit AEC-Q101 automotive qualification. Applications requiring automotive grade certification should retain the TZX30X-TAP. Applications not requiring automotive qualification may use the NZX30X,133.

Q: What is the significance of the 29.76 V nominal voltage on the NZX30X,133 versus 30 V on the TZX30X-TAP?

A: The NZX30X,133 specifies 29.76 V with ±2% tolerance, which encompasses the 30 V nominal specification within its tolerance band. This difference is acceptable for voltage regulation and reference applications where the zener voltage operates within the specified tolerance range.

Q: Are the DO-35 packages mechanically identical?

A: Both components use DO-204AH (DO-35) axial through-hole packaging. The mechanical dimensions, lead spacing, and board mounting requirements are identical, enabling direct substitution without circuit board redesign.

Q: What is the difference in reverse leakage current between these parts?

A: The TZX30X-TAP specifies 1 µA reverse leakage at 23 V, while the NZX30X,133 specifies 50 nA at 21 V. The NZX30X,133 exhibits lower reverse leakage, which may provide improved performance in low-current applications. Both values are acceptable for standard zener diode applications.

Q: Does the operating temperature range difference affect substitution?

A: The TZX30X-TAP operates from -65°C to 175°C, while the NZX30X,133 operates from -55°C to 175°C. Applications requiring operation below -55°C must use the TZX30X-TAP. Applications within the -55°C to 175°C range may use either component.

Q: Are both parts RoHS compliant?

A: Both the TZX30X-TAP and NZX30X,133 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.