GSOT04C-HT3-GS08 Equivalent & Substitute Parts

Part Overview

The GSOT04C-HT3-GS08 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications with a 4V reverse standoff voltage and 14.3V maximum clamping voltage at peak pulse current. The device is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

GSOT04C-HT3-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 805GSOT04C-HT3-GS08 Datasheet

Current PartRFQ

GSOT04C-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 15344GSOT04C-E3-08 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GSOT04C-HT3-GS08 is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Electrical Parameters:

• Voltage - Reverse Standoff: 4V
• Voltage - Breakdown (Min): 5V
• Voltage - Clamping (Max) @ Ipp: 14.3V
• Current - Peak Pulse (10/1000µs): 30A (8/20µs)
• Power - Peak Pulse: 429W
• Capacitance @ Frequency: 310pF @ 1MHz

Critical Mechanical Parameters:

• Unidirectional Channels: 2
• Mounting Type: Surface Mount
• Base Product Number: GSOT04

The GSOT04C-E3-08 meets all critical electrical specifications and maintains the same base product number (GSOT04), confirming functional equivalence. The primary difference is the package format: the substitute uses SOT-23-3 instead of 3-WDFN, which is acceptable for applications where PCB layout permits the alternative package geometry.

Parameter Comparison

Engineering Selection Recommendations

The GSOT04C-E3-08 is the manufacturer-recommended substitute for the obsolete GSOT04C-HT3-GS08. Both components share identical electrical performance specifications and are manufactured by the same supplier. The substitute maintains ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

The GSOT04C-E3-08 offers an extended operating temperature range (-55°C ~ 150°C versus -40°C ~ 125°C), providing additional thermal margin for demanding applications. The substitute is currently in active production with substantial inventory availability (15,300 pieces), eliminating supply chain risk associated with the obsolete main part.

Package geometry differs between the two parts: the main part uses 3-WDFN (LLP75-3B) while the substitute uses SOT-23-3. PCB layout and thermal management requirements must be evaluated to confirm package compatibility for your specific application.

Frequently Asked Questions (FAQ)

Q: Can GSOT04C-E3-08 be used as a direct replacement for GSOT04C-HT3-GS08?

A: Yes, from an electrical standpoint. Both components have identical voltage ratings (4V reverse standoff, 5V breakdown minimum, 14.3V clamping maximum), current ratings (30A peak pulse), and power dissipation (429W). The primary consideration is PCB layout compatibility, as the package format differs (SOT-23-3 versus 3-WDFN).

Q: What is the difference between the package formats?

A: The GSOT04C-HT3-GS08 uses a 3-WDFN package (LLP75-3B), while the GSOT04C-E3-08 uses SOT-23-3 (also known as TO-236-3 or SC-59). Both are surface mount packages with three leads, but have different footprint geometries and thermal characteristics. Verify PCB layout compatibility before implementation.

Q: Why is the main part obsolete?

A: The GSOT04C-HT3-GS08 is classified as obsolete by the manufacturer. The GSOT04C-E3-08 is the active equivalent and is recommended for all new designs and production applications.

Q: Are there compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory status. The substitute maintains full compliance with automotive-grade requirements.

Q: Does the extended temperature range of the substitute affect compatibility?

A: The GSOT04C-E3-08 operates from -55°C to 150°C, compared to -40°C to 125°C for the main part. This extended range is a superset of the original specification and does not create compatibility issues. Applications operating within the original temperature range will function identically.

Q: What inventory considerations should be evaluated?

A: The GSOT04C-HT3-GS08 has 782 pieces available as new original stock. The GSOT04C-E3-08 has 15,300 pieces in active inventory. For long-term supply security, the substitute is the preferred choice.