TZX3V0C-TAP Equivalent & Substitute Parts

Part Overview

The TZX3V0C-TAP is a 3 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates across a temperature range of -65°C to 175°C and is qualified to AEC-Q101 automotive standards. The device is currently in active production status with 1900 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within established parameter tolerances.

Substiute Parts

TZX3V0C-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 1982TZX3V0C-TAP Datasheet

Current PartRFQ

1N4619-1

Microchip TechnologyIn Stock: 13161N4619-1 Datasheet

MFR RecommendedRFQ

1N5225B

Taiwan Semiconductor CorporationIn Stock: 13301N5225B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TZX3V0C-TAP is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Zener voltage nominal rating of 3 V
• Maximum power dissipation of 500 mW
• Through-hole axial mounting configuration
• DO-35 (DO-204AH) package compatibility
• Operating temperature range support from -65°C to 175°C minimum

Tolerance Considerations: The main part specifies no tolerance designation. Substitute parts with ±5% tolerance remain functionally equivalent within the 3 V zener specification, as this tolerance band (2.85 V to 3.15 V) encompasses the nominal rating.

Impedance and Leakage Parameters: Impedance and reverse leakage specifications vary among substitutes. These parameters do not disqualify substitution when the primary electrical function (3 V zener regulation at 500 mW) is maintained.

Compliance and Certification: Substitute parts must maintain active product status. RoHS compliance status and automotive qualification differ between options and are noted for design requirement alignment.

Parameter Comparison

Engineering Selection Recommendations

TZX3V0C-TAP (Primary Selection)

Select the TZX3V0C-TAP when automotive-grade qualification and AEC-Q101 certification are required. This part maintains ROHS3 compliance and is actively produced by Vishay General Semiconductor. The automotive grade designation ensures suitability for applications requiring enhanced reliability and qualification documentation.

1N4619-1 (Substitute - General Purpose)

The 1N4619-1 from Microchip Technology provides electrical equivalence with identical 3 V, 500 mW specifications and matching operating temperature range. This substitute is suitable for non-automotive applications where RoHS compliance is not mandated. The part is actively produced and maintains lower reverse leakage characteristics (400 nA @ 1 V) compared to the main part.

1N5225B (Substitute - RoHS Compliant)

The 1N5225B from Taiwan Semiconductor Corporation maintains ROHS3 compliance matching the main part. This substitute provides identical zener voltage and power ratings with through-hole DO-35 compatibility. The extended junction temperature rating (200°C TJ) supports higher thermal operating conditions. The part is actively produced and supplied in Tape & Reel packaging.

Frequently Asked Questions (FAQ)

Q: Can the 1N4619-1 be used in automotive applications requiring AEC-Q101 certification?

A: No. The 1N4619-1 does not carry AEC-Q101 qualification or automotive grade designation. Applications requiring automotive certification must use the TZX3V0C-TAP or equivalent automotive-qualified alternatives.

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

A: Impedance values (100 Ohms, 1600 Ohms, and 29 Ohms) reflect internal device characteristics but do not prevent functional substitution when zener voltage and power ratings are matched. Impedance affects transient response and noise characteristics in specific circuit topologies. Circuit validation is required if impedance-dependent performance is critical.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts use the DO-35 (DO-204AH) axial through-hole package with identical pin configuration and physical dimensions, enabling direct mechanical substitution on printed circuit boards.

Q: Does the ±5% tolerance on substitute parts affect circuit performance?

A: The ±5% tolerance on 1N4619-1 and 1N5225B produces a zener voltage range of 2.85 V to 3.15 V. This range encompasses the nominal 3 V specification of the main part. Circuit designs must accommodate this tolerance band if voltage regulation precision is critical.

Q: Why does 1N5225B specify 200°C junction temperature while others specify -65°C to 175°C?

A: The 1N5225B lists maximum junction temperature (TJ) of 200°C, indicating higher thermal capability. The TZX3V0C-TAP and 1N4619-1 specify operating temperature range (-65°C to 175°C), which represents the ambient temperature limits. Both specifications are compatible for standard operating conditions.

Q: What is the difference between Tape & Box and Tape & Reel packaging?

A: Tape & Box (TB) packaging supplies components in tape format within a box container, suitable for manual or semi-automated assembly. Tape & Reel (TR) packaging supplies components on continuous reel tape, optimized for automated pick-and-place assembly. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Can the 1N4619-1 be used in designs where RoHS compliance is required?

A: No. The 1N4619-1 is RoHS non-compliant. For RoHS-compliant designs, use the TZX3V0C-TAP (ROHS3 compliant) or 1N5225B (ROHS3 compliant).