TZX36X-TAP Equivalent & Substitute Parts

Part Overview

The TZX36X-TAP is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division, rated at 36 V nominal with 500 mW power dissipation capability. This through-hole component operates across an extended temperature range of -65°C to 175°C and carries AEC-Q101 automotive qualification. The device is currently in active production status with 611 pieces available in inventory.

Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable, when inventory constraints exist, or when design flexibility permits component interchange within specified electrical and mechanical parameters.

Substiute Parts

TZX36X-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 634TZX36X-TAP Datasheet

Current PartRFQ

NZX36X,133

Nexperia USA Inc.In Stock: 10795NZX36X,133 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TZX36X-TAP is permissible when the replacement component meets the following criteria:

Critical Electrical Parameters:

• Zener voltage within the tolerance band of the application circuit
• Power dissipation rating equal to or greater than 500 mW
• Impedance (Zzt) maximum of 140 Ohms or lower
• Forward voltage characteristics compatible with 1.5 V @ 200 mA specification
• Reverse leakage current acceptable for the circuit application

Mechanical & Environmental Parameters:

• Through-hole mounting configuration in DO-204AH (DO-35) axial package
• Operating temperature range encompassing the application requirements
• Moisture sensitivity level MSL 1 (Unlimited)

Compliance & Qualification:

• RoHS3 compliance maintained
• REACH unaffected status
• Automotive-grade qualification preferred for automotive applications

The NZX36X,133 manufactured by Nexperia USA Inc. satisfies these substitution criteria and is identified as the manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The TZX36X-TAP remains the preferred component when available. It provides the widest operating temperature range (-65°C to 175°C) and carries AEC-Q101 automotive qualification, making it suitable for demanding automotive and industrial applications.

Substitute Part Selection: The NZX36X,133 from Nexperia USA Inc. is the qualified manufacturer-recommended substitute. This component is suitable for applications where:

• Operating temperature requirements do not extend below -55°C
• Tighter zener voltage tolerance (±2%) is acceptable or beneficial
• Lower reverse leakage current (50 nA @ 25.2 V) is advantageous
• Inventory availability of the primary part is constrained

Both components maintain ROHS3 compliance, MSL 1 rating, and identical electrical performance in the critical parameters of power dissipation, impedance, and forward voltage characteristics. The mechanical compatibility in DO-35 axial through-hole packaging ensures direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the NZX36X,133 be used as a direct replacement for the TZX36X-TAP in all applications?

A: Direct substitution is permissible when the application operating temperature range does not require operation below -55°C. The TZX36X-TAP supports operation to -65°C, while the NZX36X,133 minimum is -55°C. For applications operating within -55°C to 175°C, the NZX36X,133 is fully compatible.

Q: What is the significance of the zener voltage difference between 36 V and 36.27 V?

A: The 0.27 V difference represents a 0.75% variation. The NZX36X,133 specifies ±2% tolerance, which encompasses this nominal value. For circuit applications with voltage regulation or protection functions, this difference is typically negligible. Circuit design margins should accommodate this variation.

Q: Are there any package or pinout differences between these components?

A: Both components use identical DO-204AH (DO-35) axial through-hole packaging. Pinout and mechanical dimensions are identical, permitting direct board-level substitution without PCB layout changes.

Q: What does the lower reverse leakage current of the NZX36X,133 mean for circuit performance?

A: The NZX36X,133 exhibits 50 nanoamperes reverse leakage at 25.2 V compared to 1 microampere at 27 V for the TZX36X-TAP. Lower reverse leakage reduces standby current consumption and improves circuit efficiency in applications where leakage current is a design consideration.

Q: Are both components suitable for automotive applications?

A: The TZX36X-TAP carries explicit AEC-Q101 automotive qualification. The NZX36X,133 does not specify AEC-Q101 qualification in the provided parameters. For automotive applications requiring AEC-Q101 certification, the TZX36X-TAP is the specified choice. The NZX36X,133 is suitable for industrial and commercial applications.

Q: What is the inventory status for each component?

A: The TZX36X-TAP has 611 pieces in stock. The NZX36X,133 has 10,770 pieces available. The significantly higher inventory of the Nexperia component provides superior supply chain availability.