TV02W640-HF Equivalent & Substitute Parts

Part Overview

The TV02W640-HF is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection applications. This component operates with a 64V reverse standoff voltage and provides 103V maximum clamping voltage at peak pulse current. The device is currently in active production status and is RoHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be maintained across critical protection parameters while accommodating different package configurations or enhanced performance specifications.

Substiute Parts

TV02W640-HF

Comchip TechnologyIn Stock: 781TV02W640-HF Datasheet

Current PartRFQ

PTVS64VS1UR,115

Nexperia USA Inc.In Stock: 4379PTVS64VS1UR,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TV02W640-HF is determined by the following critical parameters:

• Voltage Protection Characteristics: Reverse standoff voltage of 64V, breakdown voltage minimum of 71.1V, and clamping voltage maximum of 103V must remain constant across all substitutes
• Thermal Operating Range: -55°C to 150°C operating temperature envelope must be maintained
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status are required
• Package Compatibility: Surface mount technology with SOD-123 or equivalent form factor

The identified substitute PTVS64VS1UR,115 maintains all critical voltage protection parameters while offering enhanced peak pulse current capability (3.9A versus 1.94A) and increased power dissipation (400W versus 200W). The package transitions from SOD-123 to SOD-123W, representing a compatible surface mount variant.

Parameter Comparison

Engineering Selection Recommendations

Both the TV02W640-HF and PTVS64VS1UR,115 maintain identical voltage protection specifications and operating temperature ranges. Selection between these components should be based on the following factors:

TV02W640-HF (Comchip Technology): Suitable for applications with peak pulse current requirements up to 1.94A and power dissipation up to 200W. Maintains SOD-123 package footprint for existing PCB designs.

PTVS64VS1UR,115 (Nexperia USA Inc.): Provides enhanced performance with peak pulse current capability of 3.9A and power dissipation of 400W. Includes AEC-Q101 automotive qualification. Utilizes SOD-123W package, a compatible surface mount variant. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can PTVS64VS1UR,115 be used as a direct replacement for TV02W640-HF?

A: Yes, provided PCB layout accommodates the SOD-123W package footprint. The voltage protection characteristics are identical, and both components are surface mount devices with compatible thermal specifications.

Q: What is the difference between SOD-123 and SOD-123W packages?

A: Both are surface mount packages for small-signal diodes. SOD-123W is a wider variant of SOD-123, offering improved thermal characteristics and mechanical robustness. Footprint compatibility depends on PCB design specifications.

Q: Are there any performance differences between these two TVS diodes?

A: The primary difference is peak pulse current handling: PTVS64VS1UR,115 supports 3.9A compared to TV02W640-HF at 1.94A. This results in doubled power dissipation capability (400W versus 200W). Voltage protection parameters remain identical.

Q: Does PTVS64VS1UR,115 include automotive qualification?

A: Yes, PTVS64VS1UR,115 carries AEC-Q101 qualification, making it suitable for automotive applications. TV02W640-HF does not specify automotive qualification.

Q: Are both components RoHS compliant?

A: Yes, both TV02W640-HF and PTVS64VS1UR,115 are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).