GSOT15-HT3-GS08 Equivalent & Substitute Parts

Part Overview

The GSOT15-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 15V reverse standoff voltage and 28.8V maximum clamping voltage at peak pulse current. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

GSOT15-HT3-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 958GSOT15-HT3-GS08 Datasheet

Current PartRFQ

GSOT15-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 25324GSOT15-E3-08 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GSOT15-HT3-GS08 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff: 15V nominal
• Voltage - Breakdown (Min): 16.5V
• Voltage - Clamping (Max) @ Ipp: 28.8V
• Current - Peak Pulse (8/20µs): 8A
• Power - Peak Pulse: 230W
• Capacitance @ 1MHz: 90pF
• Operating Temperature Range: -40°C to 125°C (TJ)
• Type: Unidirectional Zener TVS Diode

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Base Product Number: GSOT15

The GSOT15-E3-08 meets all electrical specifications and maintains functional equivalence. However, the package format differs from the original part, requiring PCB layout and footprint verification during implementation.

Parameter Comparison

Engineering Selection Recommendations

The GSOT15-E3-08 is the manufacturer-recommended substitute for the obsolete GSOT15-HT3-GS08. Both components share identical electrical specifications and are manufactured by the same supplier, ensuring functional compatibility in transient voltage suppression applications.

Product Status Consideration: The original part is obsolete, while the substitute is active production. This transition ensures long-term component availability and supply chain continuity.

Compliance & Certification: Both parts maintain ROHS3 compliance, AEC-Q101 automotive qualification (original), and MSL Level 1 rating. The substitute maintains equivalent environmental and regulatory standing.

Package Transition: The primary design consideration is the package change from 3-WDFN (LLP75-3B) to SOT-23-3. This requires PCB footprint modification and layout verification to ensure proper thermal and electrical performance in the target application.

Frequently Asked Questions (FAQ)

Q: Can the GSOT15-E3-08 directly replace the GSOT15-HT3-GS08 without PCB modifications?

A: Electrical substitution is direct. However, the package format differs (3-WDFN versus SOT-23-3), requiring PCB footprint redesign. Pin configuration and thermal characteristics must be verified against the target application requirements.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both components share the same voltage ratings (15V standoff, 28.8V clamping), current handling (8A peak pulse), power dissipation (230W), and operating temperature range (-40°C to 125°C). Capacitance at 1MHz is also equivalent at 90pF.

Q: What is the significance of the Reverse Standoff voltage specification difference (Min vs. Max)?

A: The original part specifies 15V minimum standoff voltage, while the substitute specifies 15V maximum. Both values define the same nominal operating point. The substitute's maximum specification indicates tighter tolerance control, which is acceptable for substitution purposes.

Q: Does the substitute maintain automotive qualification?

A: The original part carries AEC-Q101 automotive qualification. The substitute is listed as active production from the same manufacturer with equivalent compliance certifications (ROHS3, MSL Level 1). Automotive qualification status for the substitute should be confirmed with the manufacturer for mission-critical applications.

Q: What packaging options are available for the GSOT15-E3-08?

A: The substitute is available in SOT-23-3 package format with Tape & Reel (TR) packaging for production quantities. The original 3-WDFN (LLP75-3B) package is no longer available due to obsolescence.