TZX4V7C-TAP Equivalent & Substitute Parts

Part Overview

The TZX4V7C-TAP is a 4.7 V Zener diode rated at 500 mW in a DO-35 (DO-204AH) through-hole axial package, manufactured by Vishay General Semiconductor - Diodes Division. This component is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications and package compatibility to support design flexibility, inventory management, and supply chain continuity.

Substiute Parts

TZX4V7C-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 955TZX4V7C-TAP Datasheet

Current PartRFQ

1N5230B

Microchip TechnologyIn Stock: 12681N5230B Datasheet

MFR RecommendedRFQ

1N5230BTR

Fairchild SemiconductorIn Stock: 403651N5230BTR Datasheet

MFR RecommendedRFQ

1N750

Microchip TechnologyIn Stock: 13301N750 Datasheet

MFR RecommendedRFQ

1N750A BK PBFREE

Central Semiconductor CorpIn Stock: 109451N750A BK PBFREE Datasheet

MFR RecommendedRFQ

1N750A TR PBFREE

Central Semiconductor CorpIn Stock: 323351N750A TR PBFREE Datasheet

MFR RecommendedRFQ

BZX79C4V7-T50A

onsemiIn Stock: 13005BZX79C4V7-T50A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters:

• Zener voltage: 4.7 V nominal
• Power dissipation: 500 mW maximum
• Package type: DO-35 (DO-204AH) or DO-7 (DO-204AA) through-hole axial configuration
• Mounting: Through-hole technology

Secondary Compatibility Factors:

• Voltage tolerance (±5%, ±10%)
• Impedance (Zzt) maximum
• Reverse leakage current specifications
• Forward voltage characteristics
• Operating temperature range
• RoHS and REACH compliance status

All substitute parts listed maintain the core electrical function of a 4.7 V, 500 mW Zener diode. Variations in tolerance, impedance, and leakage current are acceptable within standard engineering practice for this component category. Package variants (DO-35 versus DO-7) are functionally equivalent for through-hole applications with identical lead spacing and mounting footprints.

Parameter Comparison

Engineering Selection Recommendations

ROHS3 Compliant Substitutes (Preferred for Regulated Applications):

The following parts maintain ROHS3 compliance matching the original TZX4V7C-TAP specification:

• 1N750A BK PBFREE (Central Semiconductor, Bulk packaging)
• 1N750A TR PBFREE (Central Semiconductor, Cut Tape packaging)
• BZX79C4V7-T50A (onsemi, Cut Tape packaging)

These three options are suitable for applications requiring environmental and regulatory compliance certification.

Extended Temperature Range Substitutes:

Parts rated to -65°C ~ 200°C provide expanded operating temperature capability beyond the original -65°C ~ 175°C specification:

• 1N5230BTR (Fairchild Semiconductor)
• 1N750A BK PBFREE (Central Semiconductor)
• 1N750A TR PBFREE (Central Semiconductor)
• BZX79C4V7-T50A (onsemi)

Package Variant Consideration:

The 1N750 (Microchip) uses DO-7 (DO-204AA) package instead of DO-35 (DO-204AH). Both are through-hole axial packages with identical lead spacing and mounting footprints, making them mechanically interchangeable on standard PCB layouts.

Active Product Status:

All listed substitute parts maintain Active product status, ensuring continued availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can I substitute 1N750A BK PBFREE for TZX4V7C-TAP in automotive applications?

A: Yes. The 1N750A BK PBFREE maintains the same 4.7 V nominal voltage, 500 mW power rating, DO-35 package, and ROHS3 compliance. It extends the operating temperature range to 200°C and provides ±5% voltage tolerance. Verify circuit requirements for impedance and leakage current specifications before final selection.

Q: What is the difference between 1N750A BK PBFREE and 1N750A TR PBFREE?

A: Both parts are electrically identical with matching specifications. The difference is packaging format: BK PBFREE is supplied in Bulk packaging, while TR PBFREE is supplied in Cut Tape (CT) packaging. Selection depends on assembly process requirements and inventory management preferences.

Q: Is the 1N750 (DO-7 package) a direct replacement for TZX4V7C-TAP (DO-35 package)?

A: The 1N750 is electrically compatible as a 4.7 V, 500 mW Zener diode. However, it uses the DO-7 (DO-204AA) package instead of DO-35 (DO-204AH). Both are through-hole axial packages with identical lead spacing and can be mounted on the same PCB footprint. Verify PCB layout compatibility before substitution.

Q: Why does BZX79C4V7-T50A have different impedance (80 Ω) compared to other substitutes (19 Ω)?

A: Impedance variation is a normal characteristic across different manufacturers' Zener diode designs. The BZX79C4V7-T50A impedance of 80 Ω remains within acceptable engineering tolerances for 4.7 V, 500 mW Zener applications. Circuit performance impact depends on specific application requirements for dynamic impedance characteristics.

Q: Can I use 1N5230B (RoHS non-compliant) in new designs?

A: The 1N5230B is electrically equivalent but does not meet ROHS3 compliance. Use only in applications where RoHS compliance is not required. For regulated or new product designs, select ROHS3-compliant alternatives: 1N750A BK PBFREE, 1N750A TR PBFREE, or BZX79C4V7-T50A.

Q: What is the significance of ±5% versus ±10% voltage tolerance?

A: Voltage tolerance specifies the acceptable deviation from the 4.7 V nominal rating. ±5% tolerance (±0.235 V) provides tighter voltage regulation compared to ±10% tolerance (±0.47 V). Select based on circuit requirements for voltage regulation precision. The original TZX4V7C-TAP does not specify tolerance; most substitutes offer ±5% or ±10% options.

Q: Are all substitute parts available in the same packaging options?

A: No. Packaging availability varies by manufacturer and part number. TZX4V7C-TAP is supplied in Tape & Box (TB). Substitutes are available in Bulk, Cut Tape (CT), or unspecified packaging formats. Verify packaging compatibility with your procurement and assembly processes.